参数资料
型号: DS2777G+T&R
厂商: Maxim Integrated Products
文件页数: 8/46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
Pin Configuration
TOP VIEW
CC
V DD
DC
V IN2
1
2
3
4
+
DS2775
DS2776
14
13
12
11
CP
SRC
SCL/OVD
SDA/DQ
V IN1
VB
V SS
5
6
7
DS2777
DS2778
EP
10
9
8
PLS
PIO
SNS
TDFN
(3mm × 5mm)
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NAME
CC
V DD
DC
V IN2
V IN1
VB
V SS
SNS
PIO
PLS
SDA/DQ
SCL/OVD
SRC
CP
EP
FUNCTION
Charge Control. Charge FET control output.
Chip-Supply Input. Bypass with 0.1μF to V SS .
Discharge Control. Discharge FET control output.
Battery Voltage Sense Input 2. Connect to highest voltage potential positive cell terminal through
decoupling network.
Battery Voltage Sense Input 1. Connect to lowest voltage potential positive cell terminal through
decoupling network.
Regulated Operating Voltage. Bypass with 0.1μF to V SS .
Device Ground. Chip ground and battery-side sense resistor input.
Sense Resistor Connection. Pack-side sense resistor sense input.
Programmable I/O. Can be configured as wake input.
Pack Plus Terminal Sense Input. Used to detect the removal of short-circuit, discharge overcurrent, and
charge overcurrent conditions.
Data Input/Output. Serial data I/O, includes weak pulldown to detect system disconnect and can be
configured as wake input for 1-Wire devices.
Serial Clock Input/Overdrive Select. Communication clock for 2-wire devices/overdrive select pin for
1-Wire devices.
Protection MOSFET Source Connection. Used as a reference for the charge pump.
Charge Pump Output. Generates gate drive voltage for protection FETs. Bypass with 0.47 μF to SRC.
Exposed Pad. Connect to ground or leave unconnected.
8
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DS2778 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with Protector and Optional SHA-1 Authentication
DS2778EVKIT+ 制造商:Maxim Integrated Products 功能描述:DS2778 EVAL KIT - Boxed Product (Development Kits)
DS2778G 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with Protector and Optional SHA-1 Authentication
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