参数资料
型号: DS2784G+T&R
厂商: Maxim Integrated Products
文件页数: 10/43页
文件大小: 0K
描述: IC FUEL GAUGE STND-ALONE 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: 2.5 V ~ 4.6 V
工作温度: -40°C ~ 85°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)
DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
located inside the protection FETs in a low-side configuration. The thresholds for overvoltage, overcurrent, and
short-circuit current are user programmable for easy customization to each cell and application.
The 32-bit wide SHA-1 engine with 64-bit secret and 64-bit challenge words resists brute force and other attacks
with financial-level HMAC security. The challenge of managing secrets in the supply chain is addressed with the
compute next secret feature. The unique serial number or ROM ID can be used to assign a unique secret to each
battery.
BLOCK DIAGRAM
VOLTAGE
UV, CD
POWER MODE
Control
(VIN - VSSA)
10-Bit + sign
ADC/MUX
VIN
TEMPERATURE
LITHIUM ION
PROTECTOR
FuelPack?
ALGORITHM
PLS
CC
FuelPack?
Algorithm
CURRENT
(VSS - SNS)
PRECISION
ANALOG
OSCILLATOR
15-Bit + sign
ADC
VREF
SNS
VSS
FET DRIVERS
DC
CP
Control and
Status Registers
WKP, WKD
PIO Logic
PIO
VDD
CHARGE
PUMP
VDD_INT
32 Byte
Parameter
EEPROM
1-Wire Interface
Pin Drivers
and Pwr
Switch
Control
DQ
16 Byte User
EEPROM
DS2784
10 of 43
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