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BQ28400 Datasheet(PDF) 5 Page - Texas Instruments |
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BQ28400 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 24 page  bq28400 www.ti.com SLUSA61A – OCTOBER 2010 – REVISED DECEMBER 2010 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) PIN MIN NOM MAX UNIT PACK VBAT + 5 Supply voltage V BAT 3.8 VVC2 + 5 V(STARTUP) Minimum startup voltage Start up voltage at PACK 5.2 5.5 V VC1, BAT VVC2 VVC2 + 5 V VC2 VVSRP VVSRP + 5 V VIN Input Voltage Range VC1 – VC2 0 5 V PACK 18.75 V SRP to SRN –0.3 1 V C(REG27) External 2.7 V REG capacitor 1 µF TOPR Operating temperature –20 85 °C ELECTRICAL CHARACTERISTICS Typical values stated where TA = 25ºC and VBAT = VPACK = 7.2 V, Min/Max values stated where TA = –20ºC to 85ºC and VBAT = VPACK = 3.8 V to 18.75 V over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITION(1) MIN TYP MAX UNIT General Purpose I/O High-level input 2 V VIH SMBD, SMBC, PRES voltage Low-level input 0.8 V VIL SMBD, SMBC, PRES voltage VOH Output voltage high PRES, IL = –0.5 mA VREG27 – 0.5 V VBAT = 3.8 V to 9 V, CL = 1 nF 3 VBAT – 0.3 8.6 V VOH(FUSE) High level Fuse output VBAT = 9 V to 10 V, CL = 1 nF 7.5 8 9 tR(FUSE) FUSE output rise time CL = 1 nF, VOH(FUSE) = 0 V to 5 V 10 µs IO(FUSE) FUSE output current FUSE active –3 mA FUSE output 2 6 k Ω ZO(FUSE) impedance FUSE Detect Input 0.8 2 3.2 V VFUSE_DET Voltage Low-level output 0.4 V VOL SMBD, SMBC, TS1, IL = 7 mA voltage CIN Input capacitance 5 pF I(VOUT) VOUT source currents VO active, VO = VREG27 – 0.6 V –3 mA ILKG(VOUT) VOUT leakage current VO inactive –0.2 0.2 µA ILKG Input leakage current SMBD, SMBC, PRES, TS1 1 µA SMBD and SMBC, RPD(SMBx) TA = –20°C to 100°C 600 950 1300 k Ω pull-down resistor RPAD Pad resistance TS1 87 110 Ω Supply Current ICC Normal Mode No flash memory write, No I/O activity 400 µA CPU=HALT ILPM Low-Power Mode CHG=DSG=PCHG=OFF 55 µA LDO ON but no load, no communication, BAT = 7.2 V ISHUTDOWN Shutdown Mode TA = –20°C to 110°C 0.5 1 µA REG27 Power On Reset VREG27IT– Negative-going voltage input, at REG27 2.22 2.29 2.34 V VREG27IT+ Positive-going voltage input, at REG27 2.25 2.5 2.6 V Flash Data retention 10 Years (1) By default: SMBus has internal pull-down. Copyright © 2010, Texas Instruments Incorporated 5 Product Folder Link(s): bq28400 |
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