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BQ24725RGRT Datasheet(PDF) 6 Page - Texas Instruments |
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BQ24725RGRT Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 39 page  bq24725 SLUS702 – JULY 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) 4.5 V ≤ VVCC ≤ 24 V, 0°C ≤ TJ ≤ 125°C, typical values are at TA = 25°C, with respect to GND (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT QUIESCENT CURRENT Battery BATFET OFF STATE Current, VVBAT = 16.8V, VCC disconnect from battery, BATFET IBAT_BATFET_OFF BATFET off, ISRP + ISRN + IPHASE + IACP + 5 µA charge pump off, BATFET turns off, TJ = 0 to 85°C IACN Battery BATFET ON STATE Current, VVBAT = 16.8V, VCC connect from battery, BATFET IBAT_BATFET_ON BATFET on, ISRP + ISRN + IPHASE + IVCC + 20 µA charge pump on, BATFET turns on, TJ = 0 to 85°C IACP + IACN Standby quiescent current, IVCC + IACP + VVCC > UVLO, VACDET = 0.6V, change disabled, ISTANDBY 0.5 1 mA IACN TJ = 0 to 85°C Adapter bias current during charge, VVCC > UVLO, 2.4V < VACDET < 3.15V, IAC_NOSW 1.5 3 mA IVCC + IACP + IACN change enabled, no switching, TJ = 0 to 85°C Adapter bias current during charge, VVCC > UVLO, 2.4V < VACDET < 3.15V, IAC_SW 10 mA IVCC + IACP + IACN change enabled, switching, MOSFET Sis412DN ACOK COMPARATOR VACOK_RISE ACOK rising threshold VVCC > UVLO, VACDET rising 2.376 2.4 2.424 V VACOK_FALL_HYS ACOK falling hysteresis VVCC> UVLO, VACDET falling 35 55 75 mV VVCC> UVLO, VACDET rising above 2.4V, 100 150 200 ms First time OR ChargeOption() bit [15] = 0 (Default) VACOK_RISE_DEG ACOK rising deglitch (Specified by design) VVCC> UVLO, VACDET rising above 2.4V, 0.9 1.3 1.7 s (NOT First time) AND ChargeOption() bit [15] = 1 VWAKEUP_RISE WAKEUP detect rising threshold VVCC> UVLO, VACDET rising 0.57 0.8 V VWAKEUP_FALL WAKEUP detect falling threshold VVCC> UVLO, VACDET falling 0.3 0.51 V VCC to SRN COMPARATOR (VCC_SRN) VVCC-SRN_FALL VCC-SRN falling threshold VVCC falling towards VSRN 70 125 180 mV VVCC-SRN _RHYS VCC-SRN rising hysteresis VVCC rising above VSRN 100 150 200 mV ACN to SRN COMPARATOR (ACN_SRN) VACN-SRN_FALL ACN to BAT falling threshold VACN falling towards VSRN 120 200 280 mV VACN-SRN_RHYS ACN to BAT rising hysteresis VACN rising above VSRN 40 80 120 mV HIGH SIDE IFAULT COMPARATOR (IFAULT_HI)(1) ChargeOption() bit [8:7] = 00 200 300 450 ChargeOption() bit [8:7] = 01 330 500 700 VIFAULT_HI_RISE ACP to PHASE rising threshold mV ChargeOption() bit [8:7] = 10 (Default) 450 700 1000 ChargeOption() bit [8:7] = 11 600 900 1250 LOW SIDE IFAULT COMPARATOR (IFAULT_LOW) VIFAULT_LOW_RISE PHASE to GND rising threshold 40 110 160 mV INPUT OVER VOLTAGE COMPARATOR (ACOV) VACOV ACDET over voltage rising threshold VACDET rising 3.05 3.15 3.25 V VACOV_HYS ACDET over voltage falling hysteresis VACDET falling 50 75 100 mV INPUT OVER CURRENT COMPARATOR (ACOC)(1) ChargeOption() bit [2:1] = 01 120% 133% 145% Adapter over current rising threshold with VACOC respect to input current limit, voltage ChargeOption() bit [2:1] = 10 (Default) 150% 166% 180% across input sense resistor rising edge ChargeOption() bit [2:1] = 11 200% 222% 240% ChargeOption() Bit [2:1] = 01 (133%), VACOC_min Min ACOC threshold clamp voltage 40 45 50 mV InputCurrent () = 0x0400H (10.24mV) ChargeOption() Bit [2:1] = 11 (222%), VACOC_max Max ACOC threshold clamp voltage 140 150 160 mV InputCurrent () = 0x1F80H (80.64mV) Voltage across input sense resistor rising to disable tACOC_DEG ACOC deglitch time (Specified by design) 1.7 2.5 3.3 ms charge BAT OVER VOLTAGE COMPARATOR (BAT_OVP) VOVP_RISE Over voltage rising threshold as VSRN rising 103% 104% 106% percentage of VBAT_REG VOVP_FALL Over voltage falling threshold as VSRN falling 102% percentage of VBAT_REG (1) User can adjust threshold via SMBus ChargeOption() REG0x12. 6 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s) :bq24725 |
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