UNISONIC TECHNOLOGIES CO., LTD
TL5001
PULSE-WIDTH-MODULATION
CONTROL CIRCUITS
DESCRIPTION
The UTC
TL5001
incorporates on a single monolithic chip all the
functions required for a pulse width modulation (PWM) control circuit.
Designed primarily for power-supply control, It 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 error-amplifier common-mode voltage ranges from 0V to 1.5V.
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 V
CC
conditions, the UVLO
circuit turns the output off until V
CC
recovers to its normal operating
range.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Complete PWM power control
* 3.6-V to 40-V operation
* Internal under voltage-lockout circuit
* Internal short-circuit protection
* Oscillator frequency : 20kHz to 500kHz
* Variable dead timer provides control over total range
ORDERING INFORMATION
Ordering Number
Lead Free
TL5001L-D08-T
TL5001L-S08-R
TL5001L-S08-T
Halogen Free
TL5001G-D08-T
TL5001G-S08-R
TL5001G-S08-T
Package
DIP-8
SOP-8
SOP-8
Packing
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
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