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Maxim > 方案 > 销售终端(POS)

电池电量计：分离方案

Battery Fuel Gauges: Discrete

数据资料
显示 标题/型号 关键优势
QV  PDF DS2775、DS2776、DS2777和DS2778评估板
DS2775K, DS2776K, DS2777K, DS2778K
QV  PDF 独立式、2节Li+电池电量计IC，提供保护电路和SHA-1认证选项
DS2775, DS2776, DS2777, DS2778

业内尺寸最小的独立式、2节电池电量计，集成Li+电池保护电路和SHA-1鉴定
QV  PDF 低成本、UCSP/SOT23封装、微功耗、高端电流检测放大器，带有电压输出
MAX4372, MAX4372F, MAX4372H, MAX4372T

微型、1mm x 1.5mm UCSP是业内最小的电流检测放大器



Key Specifications:   Battery Protectors, Selectors and Monitors
Part Number Functions Battery Type Interface User Data Storage (bytes) Parameters Measured Battery Protection Supply Voltage (min) (V) Supply Voltage (max) (V) Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
DS2775 
•Fuel Gauge
•Protector
•Status Monitor
 1-2 Cell Li-Ion
2-4 Cell Li-Ion
2-6 Cell Li-Ion 		1-Wire 16 EEPROM Current
Temperature
Time
Voltage 		Over Voltage
Over-Current
Over/Under Voltage 		4 9.2 TDFN/14 16 -20 to +70
DS2776 
•Fuel Gauge
•Protector
•Status Monitor
 1-2 Cell Li-Ion
2-4 Cell Li-Ion
2-6 Cell Li-Ion 		1-Wire 16 EEPROM Current
Temperature
Time
Voltage 		Over Voltage
Over-Current
Over/Under Voltage 		4 9.2 TDFN/14 16 -20 to +70
DS2777 
•Fuel Gauge
•Protector
•Status Monitor
 1-2 Cell Li-Ion
2-4 Cell Li-Ion
2-6 Cell Li-Ion 		2-Wire 16 EEPROM Current
Temperature
Time
Voltage 		Over Voltage
Over-Current
Over/Under Voltage 		4 9.2 TDFN/14 16 -20 to +70
DS2778 
•Fuel Gauge
•Protector
•Status Monitor
 1-2 Cell Li-Ion
2-4 Cell Li-Ion
2-6 Cell Li-Ion 		2-Wire 16 EEPROM Current
Temperature
Time
Voltage 		Over Voltage
Over-Current
Over/Under Voltage 		4 9.2 TDFN/14 16 -20 to +70
See All Battery Protectors, Selectors and Monitors (26)

Key Specifications:   Current Sense Amplifiers
Part Number CMVR (min) (V) CMVR (max) (V) VCC (min) (V) VCC (max) (V) ICC (typ) (µA) Bidirectional Current-Sense VSENSE_FS (recommended) (mV) VOS (max) @25°C (µV) AV (Gain) Gain Accuracy @25°C (max) (%) -3dB BW (kHz) Comparators Package Operating Temp. Range (°C)
MAX4372  0 28 2.7 28 30 No 100
150 		1,300 20 V/V
50 V/V
100 V/V 		2.5 110
200
275 		0 SOIC(N)/8
SOT/5
UCSP/5 		-40 to +85
See All Current Sense Amplifiers (25)
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