MAX8731 Maxim Integrated Products, MAX8731 Datasheet - Page 3

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

ELECTRICAL CHARACTERISTICS (continued)
(V
C
Figure 1; T
Battery Quiescent Current
Adapter Quiescent Current
INPUT-CURRENT REGULATION
CSSP to CSSN Full-Scale
Current-Sense Voltage
Input Current Accuracy
POR Input Current
Input Current-Limit Gain Error
Input Current-Limit Offset
CSSP/CSSN Input Voltage Range
IINP Transconductance
IINP Offset
IINP Accuracy
IINP Output Voltage Range
SUPPLY AND LINEAR REGULATOR
DCIN, Input Voltage Range
DCIN Undervoltage-Lockout
Trip Point
Power-Fail Threshold
LDO
DCIN
= 1µF, V
= V
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
Adapter present, not charging, I
V
Ad ap ter ab sent, I
+ I
I
I
I
V FBS_ = 19V
RS1 (Figure 1) = 10mΩ, InputCurrent() = 11004mA or
3584mA
RS1 (Figure 1) = 10mΩ, InputCurrent() = 2048mA
RS1 (Figure 1) = 10mΩ
Based on InputCurrent() = 1024mA and 11004mA
V
Based on V
V
V
V
DCIN falling
DCIN rising
V
V
DCIN
CSSP
CSSN
FBS_
CSSP - CSSN
CSSP - CSSN
CSSP - CSSN
CSSP - CSSN
CSSP
CSSP
C S S N
BST
+
DAC
+
= V
- V
- V
, V
- V
CSIN
CSIN
FBS _
LX
= 0.1µF, V
CSSP - CSSN
LX
= V
V
charging
V
V
V
V
= 110mV
= 110mV
= 55mV or 35mV
= 20mV
Adapter
Adapter
Battery
Adapter
Battery
= V
falling
rising
= 4.5V, V
CSIN
C S I P
LX
= V
+ I
= 16.8V
= 4V
= V
DD
= 26V, V
= 19V,
= 8V,
CONDITIONS
C S I N
C S I N
= 110mV and 20mV
CSIP
FBSA
= 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
+ I
= V
= 19V
Battery
= V
LX
CSIP
C S I P
+ I
FBSB
FBS A
Charging
Not charging
Charging
Not charging
= 19V , V
+ I
= 16.8V, not
CSIN
= V
A
+ I
= +25°C.)
CSIP
FBS B
+ I
D C I N
LX
= V
+ I
= 0V
+ I
C S S P
Remote Sense
CSIN
FBS,
= 16.8V, BATSEL = GND = PGND = 0,
106.7
MIN
2.85
-1.5
160
-10
8.0
-3
-5
-2
-1
-5
-4
8
0
7
9
TYP
200
200
200
110
256
210
0.4
0.4
3.0
7.4
7.5
15
2
113.3
MAX
+1.5
3.15
26.0
7.85
+10
271
500
500
500
3.5
+3
+5
+2
+1
+5
+4
+1
26
21
5
1
1
UNITS
mA/V
mV
mA
mV
mV
mV
mA
mA
µA
µA
µA
µA
%
%
%
%
V
V
V
V
3