Datasheet > TC35C25

TC35C25

更新时间： 2024-10-02 03:28:47

品牌	Logo	应用领域
TELCOM		信息通信管理控制器
页数	文件大小	规格书
7页	88K
描述
BICMOS PWM CONTROLLERS

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TC35C25 数据手册

TC25C25

TC35C25

BICMOS PWM CONTROLLERS

FEATURES

GENERAL DESCRIPTION

■ Low Power BICMOS Construction

The TC35C25 family of PWM controllers are CMOS

implementations of the industry standard 3525 voltage

mode SMPS ICs.

These second generation CMOS devices employ

TelCom Semiconductors' Tough BiCMOS process for

latch-up proof operation. They offer much lower power

consumption than any of their previous CMOS or bipolar

counterparts.

These controllers have separate supply pins for the

control and output sections of the circuit. This allows "boot-

strap" operation. The CMOS output stage allows the output

voltage to swing to within 25mV of either rail.

Other improved features include tighter hysteresis and

undervoltage start-up specifications over temperature, and

very low input bias current on all inputs.

■ Low Supply Current at 20 kHz ............... 1.0mA Typ

■ Latch-Up Immunity ................. >500mA on Outputs

■ Below Rail Input Protection ..............................– 5V

■ High Output Drive ................................ 500mA Peak

■ Fast Rise/Fall Time ..................... 50nsec @ 1000pF

■ High Frequency Operation .................. Up to 1MHz

■ Tri-state Sync Pin for Easy Parallel Operation

■ Under Voltage Hysteresis Guaranteed

■ Shutdown Pin Available

■ Double-Ended

■ Soft Start, With Small Cap

■ Low Prop Delay Shutdown to

Output ................................................. 140nsec Typ.

ORDERING INFORMATION

Part No.

Configuration

Pkg./Temperature

TC25C25EOE

Non-Inverting

16-Pin SOIC (Wide)

– 40°C to +85°C

TC25C25EPE

TC35C25COE

TC35C25CPE

Non-Inverting 16-Pin Plastic DIP (Narrow)

– 40°C to +85°C

Non-Inverting

16-Pin SOIC (Wide)

0°C to +70°C

Non-Inverting 16-Pin Plastic DIP (Narrow)

0°C to +70°C

FUNCTIONAL BLOCK DIAGRAM

35C25

REF

UNDER

VOLTAGE

REFERENCE

REGULATOR

GND

+4V REF

OSC OUT

+6V

SYNC

FLIP

FLOP

OSC

DISCH

COMP

CMPTR

PWM

LATCH

–

+6V

ERROR

AMP

50µA

SOFT

START

SHUTDOWN

TC25/35C25-2 10/1/96

TELCOM SEMICONDUCTOR, INC.

4-111

12 3 4 5 6 7

中文翻译

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