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BQ28550-R1 数据表(PDF) 6 Page - Texas Instruments |
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BQ28550-R1 数据表(HTML) 6 Page - Texas Instruments |
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6 / 42 page  Not Recommended for New Designs bq28550-R1 SLUSAS4A – OCTOBER 2012 – REVISED SEPTEMBER 2014 www.ti.com Electrical Characteristics: Battery Protection (continued) TA = –40 to +85ºC, VBAT =1.5 V to 5.5 V; Typical values stated, where TA = 25ºC and VBAT =3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DOUT Low Level Output VOL2 voltage (referenced to IOL = 30 µA, VBAT = 2.0 V 0.2 0.5 V Vss) DOUT High Level Output VOH2 voltage (referenced to IOH = 30 µA, VBAT = 4.0 V 3.4 3.7 V Vss) TA = 25°C detection voltage 4.230 4.250 4.270 VDET1 Overcharge detection TA = –10 to 60°C 4.225 4.250 4.275 V TA = –40 to 85°C 4.200 4.250 4.300 TA = 25°C 4.040 4.070 4.100 Overcharge release VREL1 TA = –10 to 60°C 4.025 4.070 4.115 V voltage TA = –40 to 85°C 4.010 4.070 4.130 Overcharge detection tDET1 VBAT = 3.5 V ≥ 4.5 V 0.60 1.00 1.50 s delay time Overcharge release tREL1 VBAT = 4.5 V ≥ 3.5 V 4.8 8.0 12.0 ms delay time TA = 25°C 2.265 2.300 2.335 Over-discharge detection VDET2 TA = –10 to 60°C 2.242 2.300 2.358 V voltage TA = –40 to 85°C 2.220 2.300 2.380 Over-discharge detection tDET2 VBAT = 3.5 V ≥ 2.00 V 14.4 24.0 36.0 ms delay time Over-discharge release VBAT = 3 V tREL2 2.4 4.0 6.0 ms delay time V_ = 3 V ≥ 0 V Overcurrent detection VDET3 VBAT = 4 V 0.130 0.150 0.170 V voltage on discharge Overcurrent detection VDET4 VBAT = 4 V –0.137 –0.112 –0.087 V voltage on charging Overcurrent detection VBAT = 3 V tOCD 7.2 12.0 18.0 ms delay time V_ = 0 V ≥ 1 V Overcurrent release VBAT = 3 V tOCR 2.4 4.0 6.0 ms delay time V_ = 3 V ≥ 0 V VSHORT Short detection voltage VBAT = 4 V, RPACKN = 510 Ω VBAT – 1.2 VBAT – 0.9 VBAT – 0.6 V Short detection delay VBAT = 3 V tSHORT 200 400 800 µs time V_ = 0V ≥ 3 V 6.6 Electrical Characteristics: Voltage Regulator TA = –40 to +85ºC, VBAT =1.5 V to 5.5 V; Typical values stated, where TA = 25ºC and VBAT =3.6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 2.7 V < VBAT < 5.5 V, IOUT = 16 mA 2.45 2.50 2.55 V VREG Output voltage 2.45 V < VBAT < 2.7 V, IOUT = 3 mA 2.40 ΔVLINE Line regulation 2.7 V< VBAT < 5.5 V, IOUT = 16 mA 100 200 mV VREG = 2.45 V, 100 µA < IOUT < 3 mA 30 50 ΔVLOAD Load regulation mV VBAT = 2.7 V, 3 mA < IOUT < 16 mA 30 50 VBAT = 2.45 V, IOUT = 3 mA 30 50 VDO Dropout voltage mV VBAT = 2.7 V, IOUT = 16 mA 224 290 Output voltage ΔVREG/ΔT VBAT = 3.5 V, IOUT = 100 µA 100 ppm/°C temperature coefficient VBAT = 3.5 V, IREG = 2.0 V 16 130 ΔVLINE Current limit mA VBAT = 3.5 V, IREG = 0 V 10 35 60 VOFF Regulator off voltage 7.0 8.0 9.0 V 6 Submit Documentation Feedback Copyright © 2012–2014, Texas Instruments Incorporated Product Folder Links: bq28550-R1 |
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