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8731AE Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # 8731AE
Description  SMBus Level 2 Battery Charger with Remote Sense
PDF  32 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

8731AE Datasheet(HTML) 4 Page - Maxim Integrated Products

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SMBus Level 2 Battery Charger
with Remote Sense
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VDCIN = VLX = VCSSP = VCSSN = 19V, VBST - VLX = 4.5V, VFBSA = VFBSB = VCSIP = VCSIN = 16.8V, BATSEL = GND = PGND = 0,
CLDO = 1µF, VCC = LDO, CREF = 1µF, CDAC = 0.1µF, VDD = 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
Figure 1; TA = 0
°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LDO Output Voltage
8.0V < VDCIN < 28V, no load
5.25
5.4
5.55
V
LDO Load Regulation
0 < ILDO < 30mA
34
100
mV
LDO Undervoltage-Lockout Threshold
VDCIN = 8.0V, VLDO falling
3.20
4.00
5.15
V
VDD Range
2.7
5.5
V
VDD UVLO Rising
2.5
2.7
V
VDD UVLO Hysteresis
100
mV
VDD Quiescent Current
DCIN < 6V, VDD = 5.5V, SCL = SDA = 5.5V
16
27
µA
REFERENCE
REF Output Voltage
0 < IREF < 500µA
4.071
4.096
4.120
V
REF Undervoltage-Lockout Trip Point
REF falling
3.1
3.9
V
ACOK
ACOK Sink Current
VACOK = 0.4V, ACIN = 1.5V
1
mA
ACOK Leakage Current
VACOK = 5.5V, ACIN = 2.5V
1
µA
ACIN
ACIN Threshold
2.007
2.048
2.089
V
ACIN Threshold Hysteresis
10
20
30
mV
ACIN Input Bias Current
-1
+1
µA
REMOTE-SENSE INPUTS
FBS_ Range
VCSIN - VFBS
0
200
mV
FBS_ Gain
ΔVCSIN / Δ(VCSIN - VFBS_)
0.95
1.00
1.05
V/V
CSIN-FBS_ Clamp Voltage
225
250
275
mV
FBS_ Bias Current
Charger switching, FBS_ selected
14
µA
FBS_ Bias Current
Charger not switching or FBS_ not selected
-2
+2
µA
SWITCHING REGULATOR
VCSIN = 16.0V, VCSSP = 19V
360
400
440
Off-Time
VCSIN = 16.0V, VCSSP = 17V
260
300
360
ns
BST Supply Current
DHI high
500
800
µA
LX Input Bias Current
VDCIN = 28V, VCSIN = VLX = 20V, DHI low
2
µA
Maximum Discontinuous-Mode Peak
Current (IMIN)
0.5
A
DHI On-Resistance Low
IDHI = -10mA
1
3
Ω
DHI On-Resistance High
IDHI = 10mA
3
5
Ω
DLO On-Resistance High
IDLO = 10mA
3
5
Ω
DLO On-Resistance Low
IDLO = -10mA
1
3
Ω



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