参数资料
| 型号： | DS2781E+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/31页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE BATT 8TSSOP |
| 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 ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 带卷 (TR) |
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DS2781
EEPROM RELIABILITY SPECIFICATION
(V DD = 2.5V to 10V, T A = -20°C to +70°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
EEPROM Copy Time
t EEC
15
ms
EEPROM Copy Endurance
N EEC
T A = +50°C
50,000
cycles
Note 1: All voltages are referenced to V SS .
Note 2: Factory calibrated accuracy. Higher accuracy can be achieved by in-system calibration by the user.
Note 3: Accumulation Bias register set to 00h. Current Offset Bias register set to 00h. NBEN bit = 0.
Note 4: Parameters guaranteed by design.
Note 5: Internal voltage regulator active.
PIN DESCRIPTION
TSSOP
1
2
3
4
PIN
TDFN-EP
1
2, 3
4
5
NAME
VB
V SS
V IN
V DD
FUNCTION
Internal Supply . Bypass to V SS with a 0.1μF capacitor.
Device Ground. Connect directly to the negative terminal of the cell stack.
Connect the sense resistor between V SS and SNS.
Voltage Sense Input. The voltage of the battery pack is monitored through
this input pin with respect to the V SS pin.
Power-Supply Input. Connect to the positive terminal of the battery pack
through a decoupling network.
Data Input/Output . 1-Wire data line. Open-drain output driver. Connect this
5
6
DQ
pin to the DATA terminal of the battery pack. This pin has a weak internal
pulldown (I PD ) for sensing pack disconnection from host or charger.
1-Wire Bus Speed Control. Input logic level selects the speed of the 1-Wire
6
7
OVD
bus. Logic 1 selects overdrive (OVD) and logic 0 selects standard timing
(STD). On a multidrop bus, all devices must operate at the same speed.
—
7
8
9
N.C.
SNS
No Connection
Sense Resistor Connection. Connect to the negative terminal of the battery
pack. Connect the sense resistor between V SS and SNS.
Programmable I/O Pin. Can be configured as input or output to monitor or
8
10
PIO
control user-defined external circuitry. Output driver is open drain. This pin
has a weak internal pulldown (I PD ).
—
EP
EP
Exposed Pad. Connect to V SS or leave floating.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2781EVKIT+ | 制造商:Maxim Integrated Products 功能描述:1-CELL OR 2-CELL STAND-ALONE FUEL GAUGE IC - Boxed Product (Development Kits) |
| DS2781G+ | 功能描述:电池管理 1-2 Cell Stand-Alone Fuel Gauge RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| DS2781G+T&R | 制造商:Maxim Integrated Products 功能描述:2 CELL STAND ALONE FG 10-TDFN LF - Tape and Reel |
| DS2781G-A2+T&R | 制造商:Maxim Integrated Products 功能描述: |
| DS2781K | 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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