TLE4484中文资料

Dual Voltage Regulator with 5V and 15V Outputs TLE 4484

Features ?Dual output: 5V and 15V

?High input voltage range: up to 45V ?High output current capability ?High output voltage accuracy ?Very low current consumption ?Short circuit protected

?Over-temperature protected

?

Thermal and space optimized package

Functional Description

The TLE 4484G is a monolithic integrated voltage regulator providing two output voltages, output Q5 is a 5V output for loads up to 25mA and output Q15 is a 15V output providing up to 30mA. The device is based on the Infineon double isolated bipolar technology DOPL with high accuracy polysilicon resistors and is available in the SOT223(SMD) package.

The TLE 4484G is designed to supply systems with a microcontroller (5V) and a standard MOS-driver-IC (15V) under severe conditions and is therefore equipped with additional protection functions.

Both outputs are protected against overload, short circuit to ground and to the input voltage. A build-in shutdown-circuit protects the device against overheat.

The IC operates in a wide input voltage range up to 45V. The output voltages are regulated to V Q5=5V and V Q15=15V with a drop voltage less than 1.5V. The standard SOT223 (SMD) package is especially suitable for this kind of application, saves PCB-board-space and reduces system cost.

Type Ordering Code Package

TLE 4484 G

Q67006-A9396

P-SOT223-4-2 (SMD)

Pin Configuration

(top view)

GND

4

123

I Q5Q15

AEP02857

Figure1

Pin Definitions and Functions

Pin No.Symbol Function

1I Input voltage; block to ground directly at the IC with a

ceramic capacitor.

2Q5Output voltage for microcontroller and logic circuit;

block to ground with a ceramic capacitor.

3Q15Output voltage for MOS driver circuit; block to ground with

a ceramic capacitor.

4GND Ground

Figure2Block Diagram

Absolute Maximum Ratings

Parameter Symbol Limit Values Unit Remarks

min.max.

Input

Voltage V I– 0.345V–

Current I I–––internally limited Output Q5

Voltage V Q5– 145V V Q5 < V I

Current I Q5–––internally limited Output Q15

Voltage V Q15– 145V V Q15 < V I

Current I Q15–––internally limited GND

Current I GND–55mA–

Temperatures

Junction temperature T j– 50150°C1)

Storage temperature T stg– 50150°C–

ESD-Protection (Human Body Model)

all pins V ESD– 22kV

1)The overtemperature protection will be set to 150°C min. The voltage regulator should not be operated

continuously at 170°C as device reliability will be reduced to 500h.

Note:Stresses above those listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Operating Range

Parameter Symbol Limit Values Unit Remarks

min.max.

Output Q5 input voltage V I1 6.545V–

Output Q15 input voltage V I116.545V–

Junction temperature T j– 40150°C–

Thermal Resistances

Junction ambient R th,j-a–165K/W zero airflow, zero

heat sink area Note:In the operating range, the functions given in the circuit description are fulfilled.

Electrical Characteristics

17V

Symbol

Limit Values Unit

Test Condition

min.

typ.

max.

Current Consumption Quiescent current;

I q =I I –(I Q5+I Q15)I q –450550μA I Q5=1mA; I Q15=1mA Quiescent current;I q =I I –(I Q5+I Q15)I q

–

0.761

mA

I Q5=25mA; I Q15=30mA

5V Output Q5Output voltage V Q5 4.85 5.00 5.15V I Q5=10mA; T j =25°C Output voltage V Q5 4.75– 5.25V 1mA

Output current limitation I Q51640–mA 1)

Output current limitation

I Q530––mA T j =25°C Output drop voltage;V DRQ5 = V I – V Q5V DRQ5

–0.9 1.5V I Q5=25mA 1)

Load regulation ?V Q5–2550mV 1mA

Line regulation

?V Q5

–2050mV I Q5 = 1mA; 7V

Power-Supply-Ripple -Rejection

PSRR5–50 –dB 20Hz

Value of output cap C Q5 1.0– –μF –ESR of output cap

R ESRQ5

–

–

2.0

?

–

Note:The listed characteristics are ensured over the operating range of the integrated

circuit. Typical characteristics specify mean values expected over the production spread. If not otherwise specified, typical characteristics apply at T A = 25°C and the given supply voltage.

15V Output Q15Output voltage V Q1514.415.015.6V

I Q15=15mA;T j =25°C

Output voltage V Q1514.2515.75V

1mA

Output current limitation

I Q1540––mA 1)

Output drop voltage;V DRQ15 = V I – V Q15V DRQ15

–0.9 1.5V I Q15 = 30mA 1)

Load regulation ?V Q15–1050mV 1mA

Line regulation

?V Q15

–80150mV I Q15 = 5mA; 16V

PSRR15–

50

–dB 20Hz

Value of output cap C Q15 1.0– –μF –ESR of output cap

R ESRQ15–

–

4.0

?

–

1)

Measured when the output voltage V Q has dropped 100mV from the nominal value.

Electrical Characteristics (cont’d)

17V

Symbol

Limit Values Unit

Test Condition

min.

typ.

max.

Figure3Application Circuit

Typical Performance Characteristics Output Voltage V Q5 and V Q15 versus Input Voltage V I

Current Consumption I q

versus Junction Temperature T j

Output Current Limit I Q5 and I Q15 versus Junction Temperature T j

I

V

j

T

I

T

Package Outlines

Sorts of Packing

Package outlines for tubes, trays etc. are contained in our

Data Book “Package Information”

Dimensions in mm SMD = Surface Mounted Device

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