TEA5170 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

View to exact match

TEA5170

SWITCH MODE POWER SUPPLY SECONDARY CIRCUIT

STMicroelectronics 

TEA5170

BLOCK DIAGRAM

Ct 7

OSCILLATOR

Rt

8

LOGIC

(SYNCHRO)

Comparator

2.7V

POWER OUTPUT

STAGE

Csf 1

SOFT START AND

DUTY CYCLE LIMITING

PWM

E- 5

Error Amplifier

PWM

x -1

2V

6

Eout

4

GND

ABSOLUTE MAXIMUM RATINGS

Symbol

VCC

Tj

Tstg

Parameter

Supply Voltage

Operating Junction Temperature

Storage Temperature Range

THERMAL DATA

Symbol

Rth (j-a)

Parameter

Junction-ambient Thermal Resistance

RECOMMANDED OPERATING CONDITIONS

Symbol

VCC

RT

CT

Fosc

Fsy

Tamb

VRT

VCT

ISOURCE

Parameter

Power Supply Voltage

Timing Resistor

Timing Capacitor

Oscillator Frequency

Synchro Frequency

Operating Ambient Temperature

Voltage on Pin RT (8)

Current on Pin CT (1)

Output Current

LOGIC

VCC Monitor

2

3

VCC

Pout

Value

Unit

15

V

150

°C

– 40, + 150

°C

Value

90

Unit

°C/W

Min. Typ. Max. Unit

5

14

V

47

180 kΩ

0.12

1.8 nF

12

250 kHz

12

64 kHz

– 20

70

°C

7 Volt

100 µA

30

60 mA

2/9

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