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BQ27750 Datasheet(PDF) 6 Page - Texas Instruments |
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BQ27750 Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 34 page  6 bq27750 SLUSCM7 – JUNE 2017 www.ti.com Product Folder Links: bq27750 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated 6.8 Power-On Reset (POR) Typical values stated where TA = 25ºC, Min/Max values stated where TA = –40ºC to 85ºC (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT VREGIT– Negative-going voltage input VREG 1.51 1.55 1.59 V VHYS Power-on reset hysteresis VREGIT+ – VREGIT– 70 100 130 mV tRST Power-on reset time 200 300 400 µs 6.9 Internal 1.8-V LDO Typical values stated where TA = 25ºC, Min/Max values stated where TA = –40ºC to 85ºC (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT VREG Regulator voltage 1.6 1.8 2.0 V ΔVO(TEMP) Regulator output over temperature ΔVREG/ΔTA, IREG = 10 mA ±0.25% ΔVO(LINE) Line regulation ΔVREG/ΔVBAT, VBAT = 10 mA –0 .6% 0.5% ΔVO(LOAD) Load regulation ΔVREG/ΔIREG, IREG = 0 mA to 10 mA –1.5% 1.5% IREG Regulator output current limit VREG = 0.9 x VREG(NOM), VIN > 2.2 V 20 mA ISC Regulator short-circuit current limit VREG = 0 x VREG(NOM) 25 40 50 mA PSRRREG Power supply rejection ratio ΔVBAT/ΔVREG, IREG = 10 mA, VIN > 2.5 V, f = 10 Hz 40 dB VSLEW Slew rate enhancement voltage threshold VREG 1.58 1.65 V 6.10 Current Wake Comparator Typical values stated where TA = 25ºC, Min/Max values stated where TA = –40ºC to 85ºC (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT VWAKE Wake voltage threshold VWAKE = VSRP – VSRN WAKE_CONTROL[WK1, WK0] = 0,0 ±0.3 ±0.625 ±0.9 mV VWAKE = VSRP – VSRN WAKE_CONTROL[WK1, WK0] = 0,1 ±0.6 ±1.25 ±1.8 mV VWAKE = VSRP – VSRN WAKE_CONTROL[WK1, WK0] = 1,0 ±1.2 ±2.5 ±3.6 mV VWAKE = VSRP – VSRN WAKE_CONTROL[WK1, WK0] = 1,1 ±2.4 ±5.0 ±7.2 mV VWAKE(DRIFT) Temperature drift of VWAKE accuracy 0.5% °C tWAKE Time from application of current to wake 0.25 0.5 ms tWAKE(SU) Wake up comparator startup time [WKCHGEN] = 0 and [WKDSGEN] = 0 to [WKCHGEN] = 1 and [WKDSGEN] = 1 250 640 µs 6.11 Coulomb Counter Typical values stated where TA = 25ºC, Min/Max values stated where TA = –40ºC to 85ºC (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNIT Input voltage range –100 100 mV Full scale range –VREF1/10 +VREF1/10 mV Differential nonlinearity 16-bit, No missing codes ±1 LSB Integral nonlinearity 16-bit, Best fit over input voltage range ±5.2 ±22.3 LSB Offset error 16-bit, Post-calibration ±1.3 ±2.6 LSB Offset error drift 15-bit + sign, Post-calibration 0.04 0.07 LSB/°C |
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