MAX8731 Maxim Integrated Products, MAX8731 Datasheet - Page 5

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

ELECTRICAL CHARACTERISTICS (continued)
(V
C
Figure 1; T
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
SDA/SCL Input Bias Current
BATSEL Input Low Voltage
BATSEL Input High Voltage
BATSEL Input Bias Current
SDA, Output Sink Current
SMBus TIMING SPECIFICATIONS (V
SMBus Frequency
Bus Free Time
Start Condition Hold Time from
SCL
Start Condition Setup Time from
SCL
Stop Condition Setup Time from
SCL
SDA Hold Time from SCL
SDA Setup Time from SCL
SCL Low Timeout
SCL Low Period
SCL High Period
Maximum Charging Period
Without a ChargeVoltage() or
ChargeCurrent() Command
LDO
DCIN
= 1µF, V
= V
PARAMETERS
A
PARAMETER
LX
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= V
CC
CSSP
= LDO, C
SMBus Level 2 Battery Charger with
_______________________________________________________________________________________
= V
CSSN
REF
= 19V, V
= 1µF, C
ChargingCurrent() = 3968mA, V
0.25V < V
V
V
V
V
SYMBOL
t
DD
DD
DD
(SDA)
t
TIMEOUT
t
t
t
t
DD
HD:DAT
HD:STA
SU:STO
SU:DAT
SU:STA
T
T
f
t
HIGH
SMB
BUF
LOW
= 2.7V to 5.5V
= 2.7V to 5.5V
= 2.7V to 5.5V
BST
DAC
= 2.7V to 5.5V) (see Figures 4 and 5)
= 0.4V
- V
CCI/S/V
= 0.1µF, V
LX
(Note 1)
= 4.5V, V
< 2.0V
DD
CONDITIONS
FBSA
= 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
FBS_
CSSP
CONDITIONS
= V
CSIP
= 16.8V
- V
FBSB
CSSN
- V
CSIN
= V
A
= +25°C.)
= 79.36mV
CSIP
= 39.68mV
= V
Remote Sense
CSIN
= 16.8V, BATSEL = GND = PGND = 0,
0.0625
MIN
MIN
120
300
250
140
0.5
0.5
2.1
2.1
4.7
4.7
4.7
10
25
-1
-1
6
4
4
4
0.125
TYP
TYP
250
175
1
1
0.2500
MAX
MAX
600
100
210
2.0
2.0
0.8
0.8
+1
+1
35
UNITS
UNITS
mA/V
mA/V
mA/V
kHz
mV
mA
ms
µA
µA
µs
µs
µs
µs
ns
ns
µs
µs
V
V
V
V
s
5