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PKF4510中文资料

3–7 W DC/DC Power Modules

48 V Input Series

The MacroDens ? 3–7W PKF 4000 I series true com-ponent level on-board DC/DC power modules are intended as distributed power sources in decentralized –48V and –60V DC power systems. Utilization of thick film technology and a high degree of silicon integration has made it possible to achieve a MTBF of more than 4.9 million hours.

The high reliability and the very low height of these DC/DC power modules makes them particularly suited for Information Technology and Telecom (IT&T) applications, with board spacing down to 15mm or 0.6 in. The over-moulded rugged design makes them also suitable for other demanding industrial applications. They are optimized for free convection cooling and have an operational ambient temperature range in compliance with present and future application needs, including non temperature controlled environments. The mechanical design offers the choice of surface mount or through-hole versions, delivered in ready-to-use tubes, trays or tape & reel package and compatibility with semi and fully aqueous cleaning processes.

The PKF series is manufactured using highly auto-mated manufacturing lines with a world-class quality commitment and a five-year warranty.

Ericsson Microelectronics AB has been an ISO 9001certified supplier since 1991. For a complete product program please reference the back cover.

Patents

US: D357901 DE: M94022763

?SMD and through-hole versions with ultra low component height 8.0 mm (0.315 in)?83% efficiency (typ at 5V)?1,500 Vdc isolation voltage ?MTBF > 4.9 million hours at +50°C pin temperature (+40°C ambient)

?Low EMI in conformance with class

A in CISPR 22 and FCC part 15J

元器件交易网https://www.wendangku.net/doc/767069685.html,

EN/LZT 146 33 R1A (Replaces EN/LZT 137 09 R7) ? Ericsson Microelectronics AB, June 2000

General

NOTES :

T P , is defined as the maximum temperature on the connection pins at the PB (Printed Board) solder joint, mounted on a

5–8 dm 2 (1 dm 2=15.5 in 2) multi-layer PB (>4 layers), with 20 mm (0.8 in) board-pitch and free convection cooling. Corresponding ambient temperature range (T A ) at full output power is –45…+85°C.

2)The input voltage range 38…72 V dc meets the European Telecom Standard prETS

300 132-2 Nominal input voltage range in 48V and 60 Vdc power systems, –40.5…–57.0V and –50.0...–72.0V respectively. At input voltages exceeding 72V (abnormal voltage) the power loss will be higher than at normal input voltage and T P must be limited to max +85°C. Absolute max continuous input voltage is 75 Vdc. Output characteristics will be marginally affected at input voltages exceeding 72 V.

3)For more information see page 5.

The power modules will operate down to V I ￡36V, when V I decreases, but will turn on at V I ￡38V , when V I increases (see also Operating information).

The test is applicable for through-hole versions.

Absolute Maximum Ratings

Stress in excess of Absolute Maximum Rat-ings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are normally tested with one parameter at a time exceeding the limits of Output data or Electrical Charac-teristics. If exposed to stress above these limits, function and performance may de-grade in an unspecified manner.

Environmental Characteristics

Input T P < T P max unless otherwise specified

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Mechanical Data

Connections

Through-hole version

Surface-mount version

Case

The case consists of semiconductor grade epoxy with embedded pins.

Coefficient of thermal expansion (CTE) is typ. 15 ppm/°C.

Weight

Maximum 20 g (0.71 oz).

Connection Pins

Base material is copper (Cu), first plating is nickel (Ni) and second (outer) plating is palladium (Pd).

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Palladium plating is used on the terminal pins. A pin temperature (T p ) in excess of the solder fusing temperature (+183°C for Sn/Pb 63/37) for more than 25 seconds and a peak temperature above 195°C, is required to guarantee a reliable solder joint.Both pin 1 and pin 9 must be monitored.

No responsibility is assumed if these recommendations are not strictly followed.

Reflow Soldering Information

The PKF series of DC/DC power modules are manufactured in surface mount technology. Extra precautions must therefore be taken when reflow soldering the surface mount version. Neglecting the soldering information given below may result in permanent damage or signifi-cant degradation of power module performance.

The PKF series can be reflow soldered using IR, Natural Convection,Forced Convection or Combined IR/Convection Technologies. The high thermal mass of the component and its effect on D T (°C) requires that particular attention be paid to other temperature sensitive com-ponents.

IR Reflow technology may require the overall profile time to be ex-tended to approximately 8–10 minutes to ensure an acceptable D T.Higher activity flux may be more suitable to overcome the increase in oxidation and to avoid flux burn-up.

The general profile parameters detailed in the diagram, with this ex-tended time to reach peak temperatures, would then be suitable.Note! These are maximum parameters. Depending on process varia-

tions, an appropriate margin must be added.

Thermal Data

Two-parameter model

This model provides a more precise description of the thermal charac-teristics to be used for thermal calculations.

Thermally the power module can be considered as a component and the case temperature can be used to characterize the properties. The thermal data for a power module with the substrate in contact with the case can be described with two thermal resistances. One from case to ambient air and one from case to PB (Printed circuit Board).The thermal characteristics temperature can be calculated from the following formula:

T PB = (T C –T A )×(R th C–PB +R th C–A )/R th C–A –P d ×R th C–PB +T A Where:

P d :dissipated power, calculated as P O ×(l/h –1)T C :max average case temperature

T A :

ambient air temperature at the lower side of the power module

T PB :

temperature in the PB between the PKF connection pins R th C-PB :thermal resistance from case to PB under the power module

R th C-A :thermal resistance from case to ambient air v:velocity of ambient air

R th C-PB is constant and R th C-A is dependent on the air velocity.Free convection is equal to an air velocity of approx. 0.2 – 0.3 m/s.

See figure below.

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Safety

Dual output (negative output 2)

Dual output (positive output 2)

Typical input characteristics HF Attenuation (input to output)

The PKF Series DC/DC power modules are designed in accordance with EN 60 950, Safety of information technology equipment including electrical business equipment . SEMKO certificate no. 9709166.The PKF power modules are recognized by UL and meet the applica-ble requirements in UL 1950 Safety of information technology equipment ,the applicable Canadian safety requirements and UL 1012 Standard for power supplies .

The DC/DC power module shall be installed in an end-use equip-ment and considerations should be given to measuring the pin tem-perature to comply with T P max when in operation. Abnormal compo-nent tests are conducted with the input protected by an external 3 A fuse. The need for repeating these tests in the end-use appliance shall be considered if installed in a circuit having higher rated devices.When the supply to the DC/DC power module meets all the require-ments for SELV (<60V dc), the output is considered to remain within SELV limits (level 3). The isolation is an operational insulation in accordance with EN 60950.

The DC/DC power module is intended to be supplied by isolated secondary circuitry and shall be installed in compliance with the requirements of the ultimate application. If they are connected to a 60 V DC system reinforced insulation must be provided in the power supply that isolates the input from the mains. Single fault testing in the power supply must be performed in combination with the DC/DC power module to demonstrate that the output meets the requirement for SELV. One pole of the input and one pole of the output is to be grounded or both are to be kept floating.The terminal pins are only intended for connection to mating con-nectors of internal wiring inside the end-use equipment.

These DC/DC power modules may be used in telephone equipment in accordance with paragraph 34 A.1 of UL 1459 (Standard for Tele-phone Equipment, second edition).

The galvanic isolation is verified in an electric strength test. Test voltage (V ISO ) between input and output is 1,500 Vdc for 60 s. In production the test duration may be decreased to 1 s.

The capacitor between input and output has a value of 1 nF and the leakage current is less than 1μA @ 53 V dc.

The case is designed in non-conductive epoxy. Its flammability rating meets UL 94V-0. The oxygen index is 34%.

Fundamental circuit diagrams Single output

Electrical Data

Single voltage pulse at +25°C ambient temperature.

Transient input voltage

130

12011090T r a n s i e n t v o l t a g e

Transient duration (s)

7010080110×-4110×-6

110×-21110×2

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PKF 4310

T P = –30…

+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.Output

1) See also Operating Information.2) See Typical Characteristics.

Miscellaneous

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PKF 4510

1) See also Operating Information.2) See Typical Characteristics.

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.Output

Miscellaneous

PKF 4611

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.

Output

1) See also Operating Information.

2) See Typical Characteristics.

Miscellaneous

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PKF 4713

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.

Output

1) Can be adjusted to 15 V, see Operating Information.2) See Typical Characteristics.

Miscellaneous

PKF 4621

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.

I O1nom=0.25 A, I O2nom=0.25 A.

Output

1) Can be adjusted to 15 V, see Operating Information.

2) See Typical Characteristics.

3) I lim on each output is set by the total load.

4) Output voltage on Output 2 is negative (–12V).

Miscellaneous

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PKF 4622

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.I O1nom =0.6 A, I O2nom =0.6 A.1) See Operating Information.2) See Typical Characteristics.

3) I lim

on each output is set by the total load.4) Output voltage on Output 2 is negative (–5V).

Output

Miscellaneous

PKF 4628

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.

I O1nom=0.6 A, I O2nom=0.9 A.

Output

1) See Operating Information.

2) See Typical Characteristics.

3) I lim on each output is set by the total load.

Miscellaneous

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PKF 4629

T P = –30…+85°C, V I = 38 ...72V and pin 8 connected to pin 9 unless otherwise specified.I O1nom =0.8 A, I O2nom =0.12 A.1) See Operating Information.

2) See Typical Characteristics.

3) I lim

on each output is set by the total load.4) Output voltage on Output 2 is negative (–12V).

Output

Miscellaneous

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Typical Characteristics

Output characteristic (typ)

1.9

2.12.3

2.5

00.8 1.6

2.4

3.2

Load current (A)

O u t p u t v o l t a g e (V )

Power derating

6070

0.3

72V

38V

0.60.9

1.2 1.5

Load current (A)

E f f i c i e n c y (%)

Temperature coefficient

Turn-on/turn/off input voltage

2.06

2.082.102.12

-300+30+60+90Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+7532

-300+30+60+90C)

T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15+45+75Tu rn -o n

T u r n -o

f t f a 10%l o a d T u r n -o

f a t 100%l o a d

Pin temperature (C)

°M a x o u t p u t p o w e r (W )

Efficiency (typ) @ T A = +25°C

Output characteristic (typ)

Power derating

Pin temperature (C)

°M a x o u t p u t p o w e r (W )

6070

0.3

72V

38V

0.60.9

1.2 1.5

Load current (A)

E f f i c i e n c y (%)

3.26

3.303.343.38

-300+30+60+90Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+75Temperature coefficient

Turn-on/turn/off input voltage

-300+30+60+90Pin temperature (C)

°T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15

+45+75Tu rn -o n

T u r n -o f t f a 10%l o a d T u r n -o

f f

a t 100%l o a d Efficiency (typ) @ T A = +25°C

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Output characteristic (typ)

Power derating

Pin temperature (C)

°M a x o u t p u t p o w e r (W )

Efficiency (typ) @ T A = +25°C

6070

0.24

72V

38V

0.480.72

0.96 1.2

Load current (A)

E f f i c i e n c y (%)

Turn-on/turn/off input voltage

Temperature coefficient

4.92

4.96

5.005.04

-30-0+30+60+90Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+7532

-300+30+60+90Pin temperature (C)

°T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15

+45+

75Tu rn -o n

T u r n

-o f f a t 10%l

o a d T u r n -o

f f a t 100%

l o a d Output characteristic (typ)

11.0

12.0

13.0

14.0

00.30.6

0.9 1.2

Load current (A)

O u t p u t v o l t a g e (V )

Power derating

M a x 6090

38V

72V

0.12

0.240.36

0.480.6

Load current (A)

Temperature coefficient

11.6

11.812.012.2

-300+30+60+90

Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+75Turn-on/turn/off input voltage

3638

-300+30+60+90Pin temperature (C)

°T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15

+45+75T u rn -o n

T r u n -1o o ff

a t 0%l ad

T u rn -o ff

a t 100%loa d

Efficiency (typ) @ T A = +25°C

Idling voltage (typ)

-300+30+60+90Pin temperatur (C)

°I d l i n g v o l t a g e (V )

-15

+15+45+7572V

38V

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Typical Characteristics

Cross regulation output 1 (+12V)

Cross regulation output 2 (–12V)

Efficiency (typ) @ T A = +25°C

Turn-on/turn/off input voltage

Temperature coefficient

11.6

11.812.012.2

-300+30+60+90

Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+7532

38-300+30+60+90Pin temperature (C)

°T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15+45+75Tu rn -o n

T u r n

-o f f a t 10

%l o a d T u r n -o

f f a t 100%l o a d

Power derating

Pin temperature (C)

°M a x o u t p u t p o w e r (W )

Cross regulation output 1 (+5V)

Cross regulation output 2(–5V)

Power derating

Pin temperature (C)

°M a x o u t p u t p o w e r (W )

Turn-on/turn/off input voltage

Temperature coefficient

4.90

4.95

5.005.05

-300+30+60+90

Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+

7532

38-300+30+60+90Pin temperature (C)

°T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15+45+75T u rn -o n

T u rn -o ff a

t 10%lo a

T u r n -

f f a t 100%l o a d Efficiency (typ) @ T A

= +25°C

EN/LZT 146 33 R1A (Replaces EN/LZT 137 09 R7) ? Ericsson Microelectronics AB, June 2000

Temperature coefficient Efficiency (typ) @ T A = +25°C

Cross regulation output 2 (–12V)

Cross regulation output 1 (+5V)

Power derating

Turn-on/turn/off input voltage

Temperature coefficient

3.20

3.253.303.35

-300+30+60+90Pin temperature (C)

°O u t p u t v o l t a g e (V )

-15

+15+45+75Turn-on/turn/off input voltage

38-300+30+60+90Pin temperature (C)

°T u r n -o f f /T u r n -o n v o l t a g e (V )

-15

+15+45+75Tu rn -o n

T u r n

-o

f f a t 10%l o a d T u r n -o

f f a t 100%l o a d

Efficiency (typ) @ T A = +25°C

Cross regulation output 2 (+3.3V)

Cross regulation output 1 (+5V)

Power derating

Pin temperature (C)

°M a x o u t p u t p o w e r (W )

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EMC Specifications

The PKF power module is mounted on a double sided printed circuit board (PB) with groundplane during EMC measurements. The fundamental switching frequency is 485 kHz ±15% @ I O =(0.5...1.0) × I O max .

Conducted EMI (input terminals)

Radiated EMI

Radiated emission of electromagnetic fields is measured at 10 m distance.Operating Frequency (typ)

30...100 MHz 60 dB m V/m 100...200 MHz 40 dB m V/m 200...230 MHz 30 dB m V/m 230...1,000 MHz 35 dB m V/m 1...10 GHz

46 dB m V/m

Frequency range Voltage level 0.15...300 MHz 1.0 V rms The signal is amplitude modulated with 1 kHz/80% and applied both differential and common mode.Radiated EMS (Electro-Magnetic Fields)

Radiated EMS is measured according to test methods in IEC

Standard publ. 801-3. No deviation outside the V O tolerance band will occur under the following conditions:Frequency range Voltage level 0.01...200 MHz 3 V rms /m 200...1,000 MHz 3 V rms /m 1...12 GHz

10 V rms /m

ESD

Electro Static Discharge is tested according to IEC publ. 801-2. No destruction will occur if the following voltage levels are applied to any of the terminal pins:Test

Voltage level Air discharge ±4 kV Contact discharge

±2 kV

EFT

Electrical Fast Transients on the input terminals could affect the output voltage regulation causing functional errors on the Printed Board Assembly (PBA). The PKF power module withstand EFT levels of 0.5 kV keeping V O within the tolerance band and 2.0 kV without destruction. Tested according to IEC publ. 801-4.

Output Ripple & Noise (V O ac)

Output ripple is measured as the peak to peak voltage of the funda-mental switching frequency.

The operating frequency vs. load and input voltage (72V , 48V and 38V).Tp= +25°C.

550

500400O p e r a t i n g f r e q u e n c y (k H z )

Load (%)

300

450350040

60100140

208012072V 48V 38V

102101

10098R e l a t i v e f r e q u e n c y (%)

Pin temperature (C)

°969997-40

0+20+60+100

-20

+40+80Conducted EMS

Electro Magnetic Susceptibility is measured by injection of elec-trical disturbances on the input terminals. No deviation outside the V O

tolerance band will occur under the following conditions:

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Operating Information

Remote Control (RC)

Turn-on or turn-off can be realized by using the RC-pin. Normal operation is achieved if pin 11 is open (NC). If pin 11 is connected to pin 17 the power module turns off. To ensure safe turn-off the voltage difference between pin 11 and 17 shall be less than 1.0V . RC is TTL open collector compatible output with a sink capacity >100 m A (see fig. 1).

Over Voltage Protection (OVP)

The remote control can be utilized also for OVP by using the exter-nal circuitry in figure 2. Resistor values are for 5V output applica-tions, but can easily be adjusted for other output voltages and the desired OVP level.

Output Voltage Adjust (V adj )

Output voltage, V O , can be adjusted by using an external resistor.Typical adjust range is ±15%. If pins 8 and 9 are not connected to-gether the output will decrease to a low value. To increase V O a resis-tor should be connected between pin 8/9 and 18, and to decrease V O a resistor should be connected between pin 8 and 9 (see fig. 4).Turn-on/off Input Voltage

The power module monitors the input voltage and will turn on and turn off at predetermined levels set by means of external resistors.To increase V Ion a resistor should be connected between pin 11 and 17 (see fig. 3).

Fuse Considerations

To prevent excessive current from flowing through the input supply line, in the case of a short-circuit across the converter input, an exter-nal fuse should be installed in the non-earthed input supply line. We recommend using a fuse rated at approximately 2 to 4 times the value calculated in the formula below:

Refer to the fuse manufacturer for further information.

P O max

(h min × V I min )I in max =

The resistance is given by the following equation (For V Ion >37V):

R Ion = 100× (100.2 – V Ion )/(V Ion – 36.5) k W

where 36.5 is the typical unadjusted turn-on input voltage (V).V Ioff is the adjusted turn-off input voltage and is determined by V Ion –V Ioff = 2V (typical value).

To decrease V Ion a resistor should be connected between pin 10 and 11 (see fig. 3). The resistance is given by the following equation (for 30V < V Ion > 36V:

R Ion = 364 × (V Ion – 29.9)/(36.5 – V Ion ) k W

andk 1=0.684

k 2=2.46V PKF 4310k 1=0.495k 2=3.93V PKF 4510k 1=0.495k 2=5.87V PKF 4611k 1=0.566k 2=15.00V PKF 4621*)k 1=0.495k 2= 5.87V PKF 4622k 1=0.495k 2= 3.93V PKF 4628k 1=0.495k 2=5.87V PKF 4629k 1=0.566

k 2=15.00V

PKF 4713*)

Typical required resistor value to decrease V O is given by:R adj = k 1 × (V Oi – V O )/(V O – k 2) k W

where k 1=2.751

k 2=1.75V PKF 4310k 1=1.986k 2=2.59V PKF 4510k 1=1.986k 2=4.12V PKF 4611k 1=2.284k 2=9.52V PKF 4621k 1=1.986k 2=4.12V PKF 4622k 1=1.986k 2=2.59V PKF 4628k 1=1.986k 2=4.12V PKF 4629k 1=2.284

k 2=9.52V PKF 4713

Over 13.8V output voltage, the input voltage range is limited to 38...65V .

Typical required resistor value to increase V O is given by:R adj = k 1 × (k 2 – V O )/(V O – V Oi ) k W where

V O is the desired output voltage,

V Oi is the typical output voltage initial setting

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Voltage Margin

For voltage controlled margining e.g. at final test, the following setup can be used. By increasing the control voltage V1 to +10V the output voltage decreases 5% of V Oi , and by decreasing V1 to –10V the output voltage increases 5%.

Capacitive Load

The PKF series has no maximum limit for capacitive load on the output. The power module may operate in current limiting mode during start-up, affecting the ramp-up and the start-up time. For optimum start performance we recommend maximum 100 m F/A of I O . Connect capacitors at the point of load for best performance.

Current Limiting Protection (I lim )

The output power is limited at loads above the output current limit-ing threshold (I lim ), specified as a minimum value.

Input and Output Impedance

Both the source impedance of the power feeding and the load imped-ance will interact with the impedance of the DC/DC power module.It is most important to have the ratio between L and C as low as possible, i.e. a low characteristic impedance, both at the input and output, as the power modules have a low energy storage capability.Parallel Operation

Paralleling of several converters is easily accomplished by direct connection of the output voltage terminal pins. The load regulation characteristic is specifically designed for optimal paralleling perform-ance. Load sharing between converters will be within ±10%. It is recommended not to exceed P O = n × 0.9 × P O max , where P O max is the maximum converter output power and n the number of paralleled converters, to prevent overloading any of the converters and thereby decreasing the reliability performance.

Delivery Package Information

Tubes

The PKF-series is delivered in tubes (designated by /A) with a length of 500 mm (19.69 in), see fig. 6.

Specification

Material:

Antistatic coated PVC Max surface resistance:1011W /Color:Transparent

Capacity:10 power modules/tube Weight:Typ. 60 g End stops:Pins

Trays

SMD versions, SI, can be delivered in standard JEDEC trays (desig-nated by /B) on request, see fig. 7. For more information, please contact your local Ericsson sales office.

Figure 7

Figure 6

Use an electrolytic capacitor across the input or output if the source or load inductance is larger than 10 m H. Their equivalent series resistance together with the capacitance acts as a lossless damping filter. Suitable capacitor values are in the range of 10–100 m F.Tantalum capacitors are not recommended due to their low ESR-value.