bq24707
bq24707A
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SLUSA78B –JULY 2010–REVISED MARCH 2011
ELECTRICAL CHARACTERISTICS (continued)
4.5 V ≤ V(VCC) ≤ 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
INPUT UNDERVOLTAGE LOCK-OUT COMPARATOR (UVLO)
VUVLO
Input under voltage rising threshold
Input under voltage falling hysteresis
VVCC rising
VVCC falling
3.5
3.75
340
4
V
VUVLO_HYS
mV
FAST DPM COMPARATOR (FAST_DPM)
Fast DPM comparator stop charging rising threshold
108%
VFAST_DPM
with respect to input current limit, voltage across input
sense resistor rising edge (specified by design)
QUIESCENT CURRENT
Total battery leakage current to ISRN + ISRP +IPHASE
IVCC + IACP + IACN
+
IBAT
V
VCC < VBAT = 16.8V, TJ = 0 to 85°C
VCC > VUVLO, VACDET > 0.6V, charge disabled,
15
1
µA
mA
mA
mA
V
ISTANDBY
IAC_NOSW
IAC_SW
Standby quiescent current, IVCC + IACP + IACN
0.5
1.5
10
TJ = 0 to 85°C
Adapter bias current during charge,
IVCC + IACP + IACN
VVCC > VUVLO, VACDET > 2.4V,
3
charge enabled, no switching, TJ = 0 to 85°C
VVCC > VUVLO, VACDET > 2.4V,
Adapter bias current during charge,
IVCC + IACP + IACN
charge enabled, switching, MOSFET Sis412DN
ACOK COMPARATOR
VACOK_FALL
ACOK falling threshold
ACOK rising hysteresis
V
V
V
VCC>VUVLO, VACDET rising
2.376
35
2.4
55
2.424
75
V
VACOK_RISE_HYS
VCC>VUVLO, VACDET falling
mV
VCC>VUVLO, VACDET rising above 2.4V,
0.9
0.8
1.3
1.7
s
ChargeOption() bit [15] = 0 (default), (bq24707 only)
VVCC>VUVLO, VACDET rising above 2.4V,
tACOK_FALL_DEG
ACOK falling deglitch (specified by design)
1.2
10
2
ms
μs
ChargeOption() bit [15] = 0 (default), (bq24707A only)
VVCC>VUVLO, VACDET rising above 2.4V,
50
ChargeOption() bit [15] = 1
VWAKEUP_RISE
VWAKEUP_FALL
WAKEUP detect rising threshold
WAKEUP detect falling threshold
V
VCC>VUVLO, VACDET rising
VCC>VUVLO, VACDET falling
0.57
0.51
0.8
V
V
V
0.3
VCC to SRN COMPARATOR (VCC_SRN)
VVCC-SRN_FALL
VCC-SRN falling threshold
VVCC falling towards VSRN
VVCC rising above VSRN
70
70
125
120
180
170
mV
mV
VVCC-SRN
VCC-SRN rising hysteresis
_RHYS
HIGH SIDE IFAULT COMPARATOR (IFAULT_HI)(1)
ChargeOption() bit [8:7] = 00
ChargeOption() bit [8:7] = 01
ChargeOption() bit [8:7] = 10 (default)
ChargeOption() bit [8:7] = 11
200
330
450
600
300
500
700
900
450
700
VIFAULT_HI_RISE
ACP to PHASE rising threshold
mV
mV
1000
1250
LOW SIDE IFAULT COMPARATOR (IFAULT_LOW)
VIFAULT_LOW_RISE PHASE to GND rising threshold
INPUT OVER-CURRENT COMPARATOR (ACOC)(1)
40
110
160
ChargeOption() bit [2:1] = 01
120%
150%
200%
133%
166%
222%
145%
180%
240%
Adapter over current rising threshold with respect to
VACOC
input current limit, voltage across input sense resistor ChargeOption() bit [2:1] = 10 (default)
rising edge
ChargeOption() bit [2:1] = 11
ChargeOption() bit [2:1] = 01 (133%),
Min ACOC threshold clamp voltage
VACOC_min
40
45
50
mV
InputCurrent() = 0x0400H (10.24mV)
ChargeOption() bit [2:1] = 11 (222%),
Max ACOC threshold clamp voltage
VACOC_max
140
1.7
150
2.5
160
3.3
mV
ms
InputCurrent() = 0x1F80H (80.64mV)
tACOC_DEG
BAT OVER-VOLTAGE COMPARATOR (BAT_OVP)
VOVP_RISE Over voltage rising threshold as percentage of
ACOC deglitch time (specified by design)
Voltage across input sense resistor rising to disable charge
VSRN rising
VSRN falling
103%
104%
102%
106%
VBAT_REG
VOVP_FALL
Over voltage falling threshold as percentage of
VBAT_REG
CHARGE OVERCURRENT COMPARATOR (CHG_OCP)
ChargeCurrent() = 0x0xxxH
54
80
60
90
66
100
130
mV
mV
mV
Charge over current rising threshold, measure voltage
drop across current sensing resistor
VOCP_RISE
ChargeCurrent() = 0x1000H – 0x17C0H
ChargeCurrent() = 0x1800 H– 0x1FC0H
110
120
(1) User can adjust threshold via SMBus ChargeOption() REG0x12.
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