TL1451

UNISONIC TECHNOLOGIES CO., LTD TL1451 LINEAR INTEGRATED CIRCUIT DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS SOP-16  DESCRIPTION The UTC TL1451 incorporates on a single monolithic chip all the functions required in the construction of two pulse-width-modulation (PWM) control circuits. Designed primarily for power supply control, the UTC TL1451 contains an on-chip 2.5V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry, and dual common –emitter output transistor circuits.  FEATURES *Complete PWM power control circuitry *Completely synchronized operation *Internal undervoltage lockout protection *Wide supply voltage range *Internal Short-Circuit protection *Oscillator frequency 500kHz max *Variable dead time provides control over total range *Internal regulator provides a stable 2.5V reference supply  ORDERING INFORMATION Ordering Number Lead Free Halogen Free TL1451L-D16-T TL1451G-D16-T - TL1451G-P16-R - TL1451G-S16-R Package DIP-16 TSSOP-16 SOP-16 DIP-16 TSSOP-16 Packing Tube Tape Reel Tape Reel  MARKING DIP-16 SOP-16 / TSSOP-16 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 14 QW-R103-011.F TL1451  PIN CONFIGURATION CT 1 RT 2 ERROR 1 IN+ 3 AMPLIFIER 1 1 IN- 4 1 FEEDBACK 1 DTC 5 6 1 OUT 7 GND 8  BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT 16 REF 15 SCP 14 2 IN+ 13 2 IN- ERROR AMPLIFIER 2 12 2 FEEDBACK 11 2 DTC 10 2 OUT 9 VCC UNISONIC TECHNOLOGIES CO...