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UC1846 데이터시트(PDF) 3 Page - Texas Instruments |
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UC1846 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 24 page UC1846, UC1847, UC2846 UC2847, UC3846, UC3847 www.ti.com SLUS352C – JANUARY 1997 – REVISED DECEMBER 2015 5 Pin Configuration and Functions J or N, DW Packages 16-Pin CDIP or PDIP, SOIC Top View FN or FK Packages 20-Pin PLCC or LCCC Top View Pin Functions PIN I/O DESCRIPTION PLCC, LCC DIL, SOIC NO. NAME NO. 1 2 C/S SS I Current limit/soft-start programming 2 3 VREF O 5.1-V reference voltage output 3 4 C/S – I Current sense comparator inverting input 4 5 C/S + I Current sense comparator non-inverting input 5 7 E/A + I Error amplifier inverting input 6 8 E/A – I Error amplifier inverting input 7 9 COMP I/O Error amplifier output and input to the PWM comparator 8 10 CT I Oscillator frequency programming capacitor pin 9 12 CR I Oscillator frequency programming resistor pin 10 13 Sync I/O Synchronization out from master controller or input of slave controller 11 14 A Out O PWM drive signal output A, Pin11 and P14 are complementary 12 15 GND G All signals are referenced to this node 13 17 VC I Bias supply input for output stage 14 18 B Out O PWM drive signal output B, Pin11 and P14 are complementary 15 19 VIN I Bias supply input 16 20 Shutdown I External shutdown signal input — 1, 6, 11, 16 N/C Copyright © 1997–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: UC1846 UC1847 UC2846 UC2847 UC3846 UC3847 |
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