1FEATURES

· Qualified for Automotive Applications

· 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

· Available in Q-Temperature Automotive

– High-Reliability Automotive Applications

– Configuration Control / Print Support

– Qualification to Automotive Standards

DESCRIPTION

The TL5001A incorporates on a single monolithic chip all the functions required for a pulse-width-modulation

(PWM) control circuit. Designed primarily for power-supply control, the TL5001A 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%.

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

connecting an external resistor between DTC and GND. The oscillator frequency is set by terminating RT with an

external resistor to GND. During low VCC conditions, the UVLO circuit turns the output off until VCC recovers to its

normal operating range.

The TL5001A is characterized for operation from –40°C to 125°C.