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TL5001AQDRQ1
Automotive Catalog Pulse-Width-Modulation Control Circuits
1FEATURESOUT
VCC
COMP
GND
DTC
SCP
D PACKAGE
(TOP VIEW)
DESCRIPTION
TL5001A-Q1
www.ti.com.............................................................................................................................................. SLVS603B–AUGUST 2005–REVISED FEBRUARY 2009
PULSE-WIDTH-MODULATION CONTROL CIRCUITS Qualified for Automotive Applications Complete PWM Power Control 3.6-Vto 40-V Operation Internal Undervoltage-Lockout Circuit Internal Short-Circuit Protection Oscillator Frequency:20 kHzto 500 kHz Variable Dead Time Provides Control Over
Total Range ±3% Tolerance on Reference Availablein Q-Temperature High-Reliability Automotive Applications Configuration Control/ Print Support Qualificationto Automotive StandardsThe TL5001A incorporates ona single monolithic chipall the functions required fora 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 witha dead-time-control input, undervoltage lockout (UVLO),
short-circuit protection (SCP), and an open-collector output transistor. The TL5001A hasa typical reference
voltage toleranceof ±3%.
The error-amplifier common-mode voltage ranges from0Vto 1.5V. The noninverting inputof the error amplifier connectedtoa 1-V reference. Dead-time control (DTC) can be setto provide 0%to 100% dead time by
connectingan external resistor between DTC and GND. The oscillator frequencyis setby terminating RT withan
external resistorto GND. During low VCC conditions, the UVLO circuit turns the outputoff until VCC recoverstoits
normal operating range.
The TL5001Ais characterizedfor operation from –40°Cto 125°C.
AVAILABLE OPTIONS(1)
PACKAGED DEVICES(2) SMALL OUTLINE
