MAX8731 Maxim Integrated Products, MAX8731 Datasheet - Page 8

• Manufacturer Part Number: MAX8731
• Description: SMBus Level 2 Battery Charger
• Manufacturer: Maxim Integrated Products

SMBus Level 2 Battery Charger with
Remote Sense
ELECTRICAL CHARACTERISTICS (continued)
(V
C
Figure 1; T
8
ACIN
ACIN Threshold
ACIN Threshold Hysteresis
REMOTE-SENSE INPUTS
FBS_ Range
FBS_ Gain
CSIN-FBS_ Clamp Voltage
FBS_ Bias Current
SWITCHING REGULATOR
Off-Time
BST Supply Current
DHI On-Resistance Low
DHI On-Resistance High
DLO On-Resistance High
DLO On-Resistance Low
ERROR AMPLIFIERS
GMV Amplifier Transconductance C har g i ng V ol tag e( ) = 16.8V , V
GMI Amplifier Transconductance
GMS Amplifier Transconductance InputCurrent() = 3968mA, V
CCI/CCS/CCV Clamp Voltage
LOGIC LEVELS
SDA/SCL Input Low Voltage
SDA/SCL Input High Voltage
BATSEL Input Low Voltage
BATSEL Input High Voltage
SDA, Output Sink Current
LDO
DCIN
_______________________________________________________________________________________
= 1µF, V
= V
A
PARAMETER
LX
= -40°C to +85°C, unless otherwise noted.) (Note 2)
= V
CC
CSSP
= LDO, C
= V
CSSN
REF
= 19V, V
= 1µF, C
V
∆V
Charger switching, FBS_ selected
V
V
DHI high
I
I
I
I
ChargingCurrent() = 3968mA, V
0.25V < V
V
V
V
DHI
DHI
DLO
DLO
CSIN
CSIN
CSIN
DD
DD
(SDA)
CSIN
= -10mA
= 10mA
BST
= 2.7V to 5.5V
= 2.7V to 5.5V
DAC
= 10mA
= -10mA
- V
= 16.0V, V
= 16.0V, V
= 0.4V
/ ∆(V
- V
FBS
= 0.1µF , V
CCI/S/V
LX
CSIN
= 4.5V, V
CSSP
CSSP
< 2.0V
- V
FBS_
DD
CONDITIONS
= 19V
= 17V
FBSA
= 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
)
FBS_
CSSP
= V
CSIP
= 16.8V
FBSB
- V
CSSN
- V
= V
CSIN
= 79.36mV
CSIP
= 39.68mV
= V
CSIN
= 16.8V, BATSEL = GND = PGND = 0,
0.0625
2.007
MIN
220
360
260
150
0.9
0.5
0.5
2.3
2.3
10
0
6
TYP
0.2500
2.089
MAX
200
280
440
350
800
600
1.1
2.0
2.0
0.8
0.8
30
14
3
5
5
3
UNITS
mA/V
mA/V
mA/V
mV
mV
V/V
mV
mV
mA
µA
µA
ns
Ω
Ω
Ω
Ω
V
V
V
V
V