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
LDO
LX
CSSP
CSSN
REF
BST
DAC
LX
FBSA
FBSB
CSIP
C
= 1µF, V
= LDO, C
= 1µF, C
= 0.1µF , V
= 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
CC
DD
Figure 1; T = -40°C to +85°C, unless otherwise noted.) (Note 2)
A
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ACIN
ACIN Threshold
2.007
10
2.089
30
V
ACIN Threshold Hysteresis
REMOTE-SENSE INPUTS
FBS_ Range
mV
V
- V
0
200
1.1
280
14
mV
V/V
mV
µA
CSIN
FBS
FBS_ Gain
ΔV
/ Δ(V
- V )
FBS_
0.9
220
CSIN
CSIN
CSIN-FBS_ Clamp Voltage
FBS_ Bias Current
Charger switching, FBS_ selected
SWITCHING REGULATOR
V
V
= 16.0V, V
= 16.0V, V
= 19V
= 17V
360
260
440
350
800
3
CSIN
CSIN
CSSP
Off-Time
ns
CSSP
BST Supply Current
DHI high
µA
Ω
DHI On-Resistance Low
DHI On-Resistance High
DLO On-Resistance High
DLO On-Resistance Low
ERROR AMPLIFIERS
I
I
I
I
= -10mA
= 10mA
= 10mA
= -10mA
DHI
DHI
DLO
DLO
5
Ω
5
Ω
3
Ω
GMV Amplifier Transconductance ChargingVoltage() = 16.8V, V
= 16.8V
0.0625
0.5
0.2500
2.0
mA/V
mA/V
mA/V
mV
FBS_
GMI Amplifier Transconductance ChargingCurrent() = 3968mA, V
- V
= 39.68mV
CSIP
CSIN
GMS Amplifier Transconductance InputCurrent() = 3968mA, V
- V
= 79.36mV
0.5
2.0
CSSP
CSSN
CCI/CCS/CCV Clamp Voltage
LOGIC LEVELS
0.25V < V
< 2.0V
150
600
CCI/S/V
SDA/SCL Input Low Voltage
SDA/SCL Input High Voltage
BATSEL Input Low Voltage
BATSEL Input High Voltage
SDA, Output Sink Current
V
V
= 2.7V to 5.5V
= 2.7V to 5.5V
0.8
0.8
V
V
DD
DD
2.3
V
2.3
6
V
V
= 0.4V
mA
(SDA)
8
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
