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TL1464IPT
Quad Pulse-Width-Modulation Control Circuit
Transistor
descriptionThe TL1464I incorporates on a single monolithic chip all the functions required in the construction of a
pulse-width-modulation control circuit. Designed primarily for power supply control, the TL1464I contains an
on-chip 1.5 V regulator, four error amplifiers, an oscillator, two dead-time comparators, undervoltage lockout
circuitry, short circuit protection, standby control circuitry, and output circuits.
The external speed-up capacitors provide exceptional rise and fall time performance for the PNP power
transistor.
The TL1464I operates from 3.1 V supply voltage and 2 pair of four-outputs (CH-1/CH-3, CH-2/CH-4 the same
period) at the inverse phase of each other. As a result, the TL1464I provides high-efficiency power supply.
FUNCTION TABLENOTE: When the STANDBY input is high (≥ 2.4 V), OUTPUT-2 to 4 are controlled individually. If STANDBY-2 input is low
(≤ 0.4 V), OUTPUT-2 is turned off. When CH-2 standby mode is released, CH-2 can do the soft-start function.
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.
