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BQ24725ARGRR Datasheet(PDF) 7 Page - Texas Instruments

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Part # BQ24725ARGRR
Description  1-4 Cell Li Battery SMBus Charge Controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ24725ARGRR Datasheet(HTML) 7 Page - Texas Instruments

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bq24725A
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SLUSAL0A – SEPTEMBER 2011 – REVISED AUGUST 2014
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
VREGN = 0V, VVCC > UVLO charge enabled and not in
50
75
mA
TSHUT
IREGN_LIM
REGN current limit
VREGN = 0V, VVCC > UVLO charge disabled or in
7
14
mA
TSHUT
REGN output capacitor required for
ILOAD = 100µA to 50mA
1
CREGN
µF
stability
INPUT UNDERVOLTAGE LOCKOUT COMPARATOR (UVLO)
Under voltage rising threshold
VVCC rising
3.5
3.75
4
V
UVLO
Under voltage hysteresis, falling
VVCC falling
340
mV
FAST DPM COMPARATOR (FAST_DPM)
Fast DPM comparator stop charging rising threshold with respect to input current limit, voltage
VFAST_DPM
103%
107%
111%
across input sense resistor rising edge
QUIESCENT CURRENT
Battery BATFET OFF STATE Current,
VVBAT = 16.8V, VCC disconnect from battery, BATFET
BATFET off,
IBAT_BATFET_OFF
5
µA
charge pump off, BATFET turns off, TJ = 0 to 85°C
ISRP + ISRN + IPHASE + IACP + IACN
Battery BATFET ON STATE Current,
VVBAT = 16.8V, VCC connect from battery, BATFET
BATFET on,
IBAT_BATFET_ON
25
µA
charge pump on, BATFET turns on, TJ = 0 to 85°C
ISRP + ISRN + IPHASE + IVCC + IACP + IACN
Standby quiescent current, IVCC + IACP +
VVCC > UVLO, VACDET > 0.6V, charge disabled,
ISTANDBY
0.65
0.8
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
charge 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
charge 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
VACOK_RISE_DEG
ACOK rising deglitch (Specified by design)
VVCC> UVLO, VACDET rising above 2.4V,
(NOT First time) AND ChargeOption() bit [15] = 1
0.9
1.3
1.7
s
(Default)
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
200
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] = 1 (Default)
450
750
1200
VIFAULT_HI_RISE
ACP to PHASE rising threshold
mV
ChargeOption() bit [8] = 0 Disable function
LOW SIDE IFAULT COMPARATOR (IFAULT_LOW) (1)
ChargeOption() bit [7] = 0 (Default)
70
135
220
VIFAULT_LOW_RISE
PHASE to GND rising threshold
mV
ChargeOption() bit [7] = 1
140
230
340
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)
Adapter over current rising threshold with
ChargeOption() bit [1] = 1 (Default)
300%
333%
366%
VACOC
respect to input current limit, voltage
ChargeOption() bit [1] = 0 Disable function
across input sense resistor rising edge
(1)
User can adjust threshold via SMBus ChargeOption() REG0x12.
Copyright © 2011–2014, Texas Instruments Incorporated
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