データシートサーチシステム |
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UC1845A-SP データシート(PDF) 3 Page - Texas Instruments |
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UC1845A-SP データシート(HTML) 3 Page - Texas Instruments |
3 / 28 page 2 3 4 5 6 7 8 9 Gnd Output V CC V REF R /C T T I SENSE V FB Comp 1 10 NC NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 V FB N/C I SENSE N/C N/C Output N/C V C V CC N/C 1 2 3 4 5 6 7 8 Gnd Output V CC V REF R /C T T I SENSE V FB Comp UC1845A-SP www.ti.com SLUSC14 – MAY 2015 6 Device Comparison Table PART NO. UVLO ON UVLO OFF MAXIMUM DUTY CYCLE UC1842A 16 V 10 V <100% UC1843A 8.5 V 7.9 V <100% UC1844A 16 V 10 V <50% UC1845A 8.5 V 7.9 V <50% 7 Pin Configuration and Functions JG Package FK Package 8-Pin CDIP 20-Pin LCCC Top View Top View HKU Package 10-Pin CFP Top View Pin Functions PIN I/O DESCRIPTION NAME CDIP LCCC CFP Comp 1 2 1 I Error amplifier output VFB 2 5 2 I Voltage feedback input to error amplifier ISENSE(C/S) 3 7 3 I Current sense comparator input pin RT/CT 4 10 4 I RC time constant input to oscillator 1, 3, 4, 6, 8, 9, NC — 5, 6 — No connect 11, 14, 16, 19 Pwr Gnd — 12 — — Output section ground Gnd 5 13 7 — Ground Output 6 15 8 O Regulated output VC — 17 — — Output section supply voltage VCC 7 18 9 — Unregulated supply voltage VREF 8 20 10 O 5-V internally generated reference Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: UC1845A-SP |
同様の部品番号 - UC1845A-SP |
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同様の説明 - UC1845A-SP |
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