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