器件名称: TL5001A
功能描述: PULSE-WIDTH-MODULATION CONTROL CIRCUITS
文件大小: 348.89KB 共23页
简 介:TL5001, TL5001A PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS084E – APRIL 1994 – REVISED OCTOBER 1999
D D D D D D D D
Complete PWM Power Control 3.6-V to 40-V Operation Internal Undervoltage-Lockout Circuit Internal Short-Circuit Protection Oscillator Frequency . . . 20 kHz to 500 kHz Variable Dead Time Provides Control Over Total Range ±3% Tolerance on Reference Voltage (TL5001A) Available in Q-Temp Automotive HighRel Automotive Applications Configuration Control / Print Support Qualification to Automotive Standards
D, JG OR P PACKAGE (TOP VIEW)
OUT VCC COMP FB
1 2 3 4
8 7 6 5
GND RT DTC SCP
FK PACKAGE (TOP VIEW)
GND SCP
— — — — — —
OUT
NC
NC
1
3
2
20 19 18 NC 17 RT 16 NC 15 DTC
NC VCC NC COMP
4 5 6 7
description
The TL5001 and TL5001A incorporate on a single NC 8 14 NC monolithic chip all the functions required for a 9 10 11 12 13 pulse-width-modulation (PWM) control circuit. Designed primarily for power-supply control, the TL5001/A contains an error amplifier, a regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout (UVLO), short-circuit protection (SCP), and an open-collector output transistor. The TL5001A has a typical reference voltage tolerance of ±3% compared to ±5% for the TL5001.
NC FB NC
The error-amplifier common-mode voltage ranges from 0 V to 1.5 V. The noninverting input of the error amplifier is connected to a 1-V reference. Dead-time control (DTC) can be set to provide 0% to 100% dead time by connect……
