MAX8731EVSYS Maxim Integrated, MAX8731EVSYS Datasheet - Page 6

• Manufacturer Part Number: MAX8731EVSYS
• Description: Battery Management SMBus Level 2 Battery Charger with Remote Sense
• Manufacturer: Maxim Integrated
• Series: MAX8731Ar

Specifications of MAX8731EVSYS

• Battery Type: Li-Ion, Li-Polymer, NiCd, NiMH, Lead Acid, Universal
• Output Voltage: 5.4 V
• Operating Supply Voltage: 8 V to 26 V
• Charge Safety Timers: Yes
• Operating Supply Current: 2 uA
• Product Type: Charge Management
• Temperature Monitoring: No
• Uvlo Start Threshold: 2.5 V
• Uvlo Stop Threshold: 100 mV

SMBus Level 2 Battery Charger with
Remote Sense
ELECTRICAL CHARACTERISTICS
(V
C
Figure 1; T
6
CHARGE-VOLTAGE REGULATION
Battery Full-Charge Voltage and
Accuracy
CHARGE-CURRENT REGULATION
CSIP to CSIN Full-Scale Current-
Sense Voltage
Charge Current and Accuracy
Charge-Current Gain Error
FBSA/FBSB/CSIP/CSIN Input
Voltage Range
Battery Quiescent Current
Adapter Quiescent 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
ChargingVoltage() = 0x41A0
ChargingVoltage() = 0x3130
ChargingVoltage() = 0x20D0
ChargingVoltage() = 0x1060
RS2 (Figure 1) = 10mΩ;
ChargingCurrent()= 0x1f80
RS2 (Figure 1) = 10mΩ;
ChargingCurrent() = 0x0f80
RS2 (Figure 1) =10mΩ;
ChargingCurrent() = 0x0080
Based on ChargeCurrent() = 128mA and 8.064A
Adapter present, not charging, I
V
Adapter absent, I
I
V
I
I
I
CSSP
DCIN
CSSP
CSSN
FBS_
DCIN
BST
DAC
+
+
+ I
= V
= 0V
- V
CSSN
= 0.1µF , V
LX
LX
V
V
V
V
V
= V
, V
A d a p t er
Adapter
Battery
Adapter
Battery
= 4.5V, V
CSIN
FBS_
CSIP
= 16.8V
= 4V
= V
DD
= V
= 26V , V
= 19V,
= 8V,
CONDITIONS
+ I
FBSA
LX
= 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
CSIP
CSIN
= V
= V
B at te r y
= 19V
+ I
CSIN
CSIP
LX
FBSB
+ I
= V
= 16.8V , not char g i ng
Charging
Not charging
Charging
Not charging
+ I
FBSA
= V
CSIP
CSIN
CSIP
+ I
= 19V,
+ I
FBSB
= V
LX
+ I
CSIN
+
FBS
= 16.8V, BATSEL = GND = PGND = 0,
,
16.632
12.466
8.316
4.129
78.22
7.822
3.809
MIN
-1.5
30
-1
-1
-1
-3
-4
-2
0
TYP
16.968
12.717
8.484
4.255
83.05
8.305
4.126
MAX
+1.5
400
500
500
500
+1
+1
+1
+3
+4
+2
19
5
1
1
1
UNITS
mV
mA
mA
mA
µA
µA
µA
µA
%
%
%
%
%
%
%
V
V
V
V
A
A
V