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MC34674B Datasheet(PDF) 19 Page - Freescale Semiconductor, Inc |
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MC34674B Datasheet(HTML) 19 Page - Freescale Semiconductor, Inc |
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19 / 26 page  Analog Integrated Circuit Device Data Freescale Semiconductor 19 34674 FUNCTIONAL DESCRIPTION STATE DIAGRAMS STATE DIAGRAMS Figure 23. 34674 Flow Chart TEMP/OV FAULT Charger: OFF LED: YELLOW TRICKLE CHARGE Charger: ON LED: RED FAST CHARGE Charger: ON LED: RED CHARGE COMPLETION Charger: OFF LED: GREEN RECHARGE Charger: ON LED: GREEN BATTERY CONNECTION FAULT Charger: OFF LED: YELLOW VIN > VPOR Good connection VBAT > VTRKL before 1/8 TIMEOUT completes VBAT > VRECH and ICHG < IEOC TIMEOUT VBAT < VRECH VBAT > VRECH and ICHG < IEOC or TIMEOUT completes TEMP and OV fault removed Anytime a TEMP or OV Fault occurs (except in TIMEOUT fault) VBAT drops below VTRKL VBAT drops below VTRKL VBAT < VTRKL when 1/8 TIMEOUT completes BATTERY CONNECTION VERIFICAION Charger: OFF LED: OFF Bad connection TIMEOUT FAULT Charger: OFF LED: YELLOW POWER PRESENCE INDICATION Charger: OFF LED: RGYO ENABLE VERIFICATION Charger: OFF LED: OFF Enabled Disable verified Anytime EN pin changes to disable Disable not verified, resume to previous operation DISABLE VERIFICATION Charger: unchange LED: no change PWR OFF Charger: OFF LED: OFF Not Enabled BATTERY CONNECTION VERIFICATION Charger: OFF LED: GREEN Bad connection Good connection POR Charger: OFF LED: OFF 0.5-sec DELAY Charger: OFF LED: OFF EN pin changes to Disable To Disable Verification |
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Similar Description - MC34674B |
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