参数资料
型号: DS2778G+T&R
厂商: Maxim Integrated Products
文件页数: 6/46页
文件大小: 0K
描述: IC FUEL GAUGE LI+ 2CELL 14-TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 燃料,电量检测计/监控器
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4 V ~ 9.2 V
工作温度: -20°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 14-WFDFN 裸露焊盘
供应商设备封装: 14-TDFN-EP(3x5)
包装: 带卷 (TR)
2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with
Protector and Optional SHA-1 Authentication
Typical Operating Characteristics
(T A = +25°C, unless otherwise noted.)
DISCHARGE-OVERCURRENT
PROTECTION DELAY
DS2775/6/7/8 toc01
CC FET GATE TURN-OFF DURING
CHARGE-OVERCURRENT EVENT
DS2775/6/7/8 toc02
2V/div
0V
2V/div
0V
1V/div
0V
DC FET
GATE
DC FET
SOURCE
V GS
2V/div
0V
2V/div
0V
1V/div
0V
CC FET
GATE
CC FET
SOURCE
V GS CC FET
20mV/div
0V
0
2
4
6
8
V SNS 25m Ω
SENSE RESISTOR
WITH DISCHARGE-
OVERCURRENT
10 12 14 16 18 20 THRESHOLD = 38mV
0V
20mV/div
0
5
V SNS 25m Ω
SENSE RESISTOR
WITH CHARGE-
OVERCURRENT
10 15 20 25 30 35 40 45 50 THRESHOLD = 25mV
TIME (ms)
DC FET GATE TURN-OFF DURING
SHORT-CIRCUIT EVENT
DS2775/6/7/8 toc03
TIME ( μ s)
SHORT-CIRCUIT PROTECTION
DELAY
DS2775/6/7/8 toc04
2V/div
0V
2V/div
0V
1V/div
DC FET
GATE
DC FET
SOURCE
2V/div
0V
2V/div
0V
1V/div
DC FET
GATE
DC FET
SOURCE
0V
50mV/div
0V
0
2
4
6
8 10 12 14 16 18 20
TIME ( μ s)
V GS DC FET
V SNS 25m Ω
SENSE RESISTOR
WITH SHORT-CIRCUIT
THRESHOLD = 150mV
0V
100mV/div
0V
0
V GS DC FET
V SNS 25m Ω
SENSE RESISTOR
WITH SHORT-CIRCUIT
THRESHOLD = 150mV
20 40 60 80 100 120 140 160 180 200
TIME ( μ s)
VOLTAGE MEASUREMENT
CHARGE-PUMP STARTUP EXITING SLEEP
20
18
ACCURACY
8
7
MODE (V DD = 8V NO LOAD ON PK+)
DS2775/6/7/8 toc06
12.6V
16
14
12
+70 ° C
-20 ° C
6
5
10
8
6
4
2
0
+25 ° C
4
3
2
0
-2
2.75V
0
1
2
3
4
0
10 20 30 40 50 60 70 80 90 100
V INX (V)
TIME (ms)
6
_______________________________________________________________________________________
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