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TL5001A-Q1_15 Datasheet, PDF (1/19 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUITS
TL5001A-Q1
www.ti.com .............................................................................................................................................. SLVS603B – AUGUST 2005 – REVISED FEBRUARY 2009
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
FEATURES
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• 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
D PACKAGE
(TOP VIEW)
OUT 1
VCC 2
COMP 3
FB 4
8 GND
7 RT
6 DTC
5 SCP
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.
AVAILABLE OPTIONS(1)
PACKAGED DEVICES(2)
TA
SMALL OUTLINE
(D) (3)
–40°C to 125°C
TL5001AQDRQ1
(1) For the most current package and ordering information, see the
Package Option Addendum at the end of this document, or see the
TI web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at
www.ti.com/packaging.
(3) The D package is available taped and reeled. Add the suffix R to the
device type (e.g., TL5001ADR).
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005–2009, Texas Instruments Incorporated
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