S7DB-20E10H中文资料
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.wendangku.net/doc/7e13090364.html,
? Non-Isolated ? Wide Input ? OCP/SCP/OVP ? Remote Sense ? Low Profile Package ? Under-Voltage Lockout
? Remote On/Off (Active
High)
(UVLO)
Description
The S7DB-20ExxH Series are non-isolated step down DC/DC converters that operate from with an extra wide input range (4.7V to 13.2V). This allows them to operate from a nominal 5V or 12V source or from an unregulated source such as a bus converter in an Intermediate Bus Architecture application. These modules are available in a range of output voltages from 1.0V to 5.0V. They are offered in a compact ovemolded package rated at 20A. Standard features include remote on/off, over current protection, over voltage protection, output voltage adjust and remote sense. These products may be used almost anywhere low-voltage silicon is being employed and a nominal 5 to 12V source is available. Typical applications include file servers, routers, line cards, and other computing and communications equipment.
Part Selection
Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number 5.0V 8.0 – 13.2V 20A 100W 94% S7DB-20E50H 3.3V 5.8 – 13.2V 20A 66W 92% S7DB-20E33H 2.5V 4.7 – 13.2V 20A 50W 91% S7DB-20E25H 1.8V 4.7 – 13.2V 20A 36W 88% S7DB-20E18H 1.5V 4.7 – 13.2V 20A 30W 87% S7DB-20E15H 1.2V 4.7 – 13.2V 20A 24W 85% S7DB-20E12H 1.0V
4.7 – 13.2V
20A
20W
84%
S7DB-20E10H
Note: Add “R” suffix at the end of the model number to indicate “Reel Packaging”, and “G” for “Tray Packaging”.
Absolute Maximum Ratings
Parameter
Min Typ Max Notes
Input Voltage (continuous)
-0.3V - 16V Output Enable Terminal Voltage -0.3V - 16V Ambient Temperature -40°C - 85°C Storage Temperature
-40°C
-
105°C
Input Specifications
Parameter
Min Typ Max Notes
Input Voltage
Vo=5.0V Vo=3.3V Vo=1.0-2.5V
8V 5.8V 4.7V - - - 13.2V 13.2V 13.2V
Input Current (full load)
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
- - - - - - -
- - - - - - -
15.1A 14.1A 13.3A 10.4A 8.4A 6.9A 5.9A
S7DB-20ExxH Series
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.wendangku.net/doc/7e13090364.html,
Input Specifications (continued)
Parameter
Min Typ Max Notes
Input Current (no load)
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
- - - - - - - 200mA 150mA 135mA 120mA 100mA 85mA 80mA - - - - - - -
Input Reflected Ripple Current (pk-pk) - 130mA
200mA
Input Reflected Ripple Current (RMS) - 40mA 70mA With simulated impedance of 500nH, 5Hz to 20MHz; use two 270uF/16V capacitors with
ESR=0.018ohm max, at 100KHz
I 2
t Inrush Current Transient - 0.1A 2s 0.2A 2
s Turn-on Voltage Threshold 4.35V 4.48V 4.60V Turn-off Voltage Threshold
3.65V
3.98V
4.30V
Note: All specifications are typical at Vin=8V, full load at 25°C unless otherwise stated.
Output Specifications
Parameter
Min Typ Max Notes
Output Voltage Set Point
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
4.900V 3.234V 2.450V 1.764V 1.470V 1.176V 0.980V
5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 5.100V 3.366V 2.550V 1.836V 1.530V 1.224V 1.020V
Test conditions:
Vin=8V; Iout=half load
Line Regulation
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
- - - - - - - ±2mV ±1mV ±1mV ±1mV ±1mV ±1mV ±1mV ±4mV ±3mV ±3mV ±3mV ±3mV ±3mV ±3mV
Load Regulation
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
- - - - - - - ±3mV ±2mV ±2mV ±2mV ±1mV ±1mV ±1mV ±7mV ±4mV ±4mV ±4mV ±3mV ±3mV ±3mV
Regulation Over Temperature (-40°C to +85°C)
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
- - - - - - -
±15mV ±10mV ±9mV ±8mV ±7mV ±5mV ±5mV
±30mV ±20mV ±18mV ±16mV ±14mV ±10mV ±10mV
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.wendangku.net/doc/7e13090364.html,
Output Specifications (continued)
Parameter
Min Typ Max
Notes
Output Current
0A - 20A Current Limit Threshold
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
24A 24A 24A 24A 24A 24A 24A - - - - - - - 38A 38A 37A
35A 35A 35A 35A
Short Circuit Surge Transient - 0.075A 2s 0.15A 2
s Ripple and Noise 1
(RMS) - 20mV 40mV With 1uF ceramic capacitor at the output Ripple and Noise 1 (RMS) - 10mV 20mV With 680uF tantalum capacitor at the output
Ripple and Noise 1 (pk-pk) 60mV 100mV With 1uF ceramic capacitor at the output Ripple and Noise 1 (pk-pk) 30mV 60mV With 680uF tantalum capacitor at the output Turn on Time - 20mS 40mS Overshoot at Turn on - 0% 3% Output Capacitance 680uF
-
8000uF
Transient Response 50% ~ 100% Max Load
- 120mV 200mV Settling Time
- 50uS 100uS 100% ~ 50% Max Load
-
120mV
200mV Settling Time
V O =5V
- 50uS 100uS 50% ~ 100% Max Load
- 100mV 150mV Settling Time
- 50uS 100uS 100% ~ 50% Max Load
- 100mV 150mV Settling Time
V O =1.8V-3.3V - 50uS 100uS 50% ~ 100% Max Load
- 100mV 150mV Settling Time
- 40uS 80uS 100% ~ 50% Max Load
- 100mV 150mV Settling Time
V O =1.5V - 40uS 80uS 50% ~ 100% Max Load
- 100mV 150mV Settling Time
- 40uS 80uS 100% ~ 50% Max Load
- 100mV 150mV Settling Time
V O =1.2V - 50uS 100uS 50% ~ 100% Max Load
- 90mV 130 mV Settling Time
- 40uS 80uS 100% ~ 50% Max Load
- 90mV 130mV Settling Time
V O =1.0V -
40uS
80uS
Test conditions:
di/dt = 0.5A/uS; Vin=8V; with
external 680uF tantalum capacitor.
Notes: All specifications are typical at full load at 25°C unless otherwise stated.
1. Test conditions of the output ripple and noise: two 270uF/16V capacitors with ESR=0.018 ohm max at the input; Vin=8V, Io=20A; 0-20MHz BW.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.wendangku.net/doc/7e13090364.html,
General Specifications
Parameter
Min Typ Max Notes
Efficiency
V O =5.0V V O =3.3V V O =2.5V V O =1.8V V O =1.5V V O =1.2V V O =1.0V
91% 89% 88% 85% 84% 82% 81% 94% 92% 91% 88% 87% 85% 84% - - - - - - -Measured at Vin=8V at full load.
Switching Frequency
480KHz 600KHz 720KHz
Over Voltage Protection (Latch) 108.5%
115%
120%
Can be reset by cycling the input supply voltage or remote on/off. Output Trim Range
90%V O - 110%V O
Remote Sense Compensation - 10%
MTBF 3,154,461 hours
Calculated Per Bell Core TR-332 (I O = 16A, Vin=8V, Vo=3.3V; T a = 25°C)
Dimensions
Inches (L × W × H) Millimeters (L × W × H)
1.22 x 0.827 x 0.345
30.99x 21.0x 8.76
Weight - 11g -
Note : All specifications are typical at 25°C unless otherwise stated.
Control Specifications
Parameter
Min Typ Max Notes
Remote On/Off
Signal Low (Unit Off) 0V - 1V Signal High (Unit On)
2.5V
-
13.2V
Remote on/off pin open, unit on.
Output Trim Equations
Equations for calculating the trim resistor (in k ?) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application.
Vnom A B C D 5.0V 30.955 15.805 5.8848.450 3.3V 3.961 3.407 1.266 1.825 2.5V 1.834 3.3970.861 2.320 1.8V 1.927 6.916 1.533 5.000 1.5V 1.353 5.851 1.533 3.935 1.2V 0.099 0.4460.1960.201 1.0V 0.102 0.6840.4010.183
K
B Vadj Vnom A
down Rtrim )(_??=D Vnom
Vadj C
up Rtrim )
(_??=
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.wendangku.net/doc/7e13090364.html,
Efficiency Data
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? https://www.wendangku.net/doc/7e13090364.html,
S7DB-20E10H (Vin=8V) S7DB-20E12H (Vin=8V)
S7DB-20E15H (Vin=8V) S7DB-20E18H (Vin=8V)
S7DB-20E25H (Vin=8V) S7DB-20E33H (Vin=8V)
S7DB-20E50H (Vin=8V)
2004 Bel Fuse Inc. Specifications subject to change without notice. 113004
CORPORATE FAR EAST EUROPE
Bel Fuse Inc. Bel Fuse Ltd. Bel Fuse Europe Ltd. 206 Van Vorst Street 8F/ 8 Luk Hop Street Preston Technology Management Centre Jersey City, NJ 07302 San Po Kong Marsh Lane, Suite G7, Preston Tel 201-432-0463 Kowloon, Hong Kong Lancashire, PR1 8UD, U.K. Fax 201-432-9542 Tel 852-2328-5515 Tel 44-1772-556601 https://www.wendangku.net/doc/7e13090364.html, Fax 852-2352-3706 Fax 44-1772-888366 https://www.wendangku.net/doc/7e13090364.html, https://www.wendangku.net/doc/7e13090364.html,
NON-ISOLATED DC/DC CONVERTERS
4.7V – 13.2V Input / 1.0V –
5.0V Output / 20A
Pin Connections
Pin Function
1 +Vo
2 +Vo
3 Ground
4 Ground
5 Ground
6 +Vin
7 +Vin
8 Ground
9 Ground 10 Remote On/Off 11 Trim 12 Remote Sense (+)
Note: Though there are 5 Ground pins, it is highly
recommended that all of them should be used in the
system application because of the current and the thermal conduction.