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参数资料
| 型号： | MAX1679EUA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR 1CELL LITH 8-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 5 V ~ 22 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
Single-Cell Li+ Battery Charger
for Current-Limited Supply
Typical Operating Characteristics
(VIN = V CHG = +10V, VBATT = +4.2V, THERM = 10k ? to GND, TA = +25°C, unless otherwise noted.)
1.0200
TIMER PERIOD vs.
AMBIENT TEMPERATURE
NORMALIZED BATT REGULATION VOLTAGE
vs. TEMPERATURE
1.0015
6.0
PRECHARGE CURRENT
vs. INPUT VOLTAGE
1.0150
1.0100
NORMALIZED TO +25°C
1.0010
1.0005
1.0000
NORMALIZED TO +25°C
5.8
5.6
5.4
5.2
V BATT = 0V
V BATT = 2V
1.0050
0.9995
5.0
1.0000
0.9950
0.9900
0.9990
0.9985
0.9980
0.9975
4.8
4.6
4.4
4.2
4.0
V BATT = 4.1V
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
5
10
15
20
25
TEMPERATURE (°C)
TEMPERATURE (°C)
V IN (V)
Pin Description
PIN
1
2
3
4
5
6
7
8
NAME
IN
GATE
CHG
TSEL
ADJ
GND
THERM
BATT
FUNCTION
Input Voltage from Current-Limited Voltage Source (+22V max). Bypass to GND with a 0.1μF capacitor. The
cell charging current is set by the current limit of the external power supply.
Gate Drive for External PMOS Pass Element. The PMOS device should have a V GS threshold of 2.5V or
less. See Selecting External Components.
Charge Status Indication. CHG is an open-drain, current-limited N-channel MOSFET suitable for directly dri-
ving an LED. Connect a pull-up resistor to BATT to generate a logic-level signal. See Table 2 for CHG out-
put states.
Maximum Total Charge-Time Selection. See Table 3 for timer options.
Battery Regulation Voltage Adjustment. Bypass to GND with a 1000pF capacitor. Connect a resistor from
ADJ to GND to reduce the nominal +4.200V regulation setpoint. See Adjusting the Battery Regulation
Voltage.
Ground. See Layout Guidelines for information on system grounding. Connect the battery’s negative termi-
nal to GND.
Thermistor Temperature-Sensor Input. Connect a thermistor from THERM to GND to prequalify the cell tem-
perature for fast-charge. Drive THERM high (> +1.4V) during Done or Fault states to reset the MAX1679 and
reinitiate the charging sequence. Replace the thermistor with a 10k ? resistor if temperature sensing is not
required.
Cell Voltage Monitor Input, Trickle-Charge Output, and MAX1679 Power Source. Connect BATT to the posi-
tive terminal of a single Li+ cell. Bypass BATT with a capacitor to ground (1.5μF per amp of charge current).
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1679EUA+ | 功能描述:电池管理 Battery Charger Current-Limited Sply 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 |
| MAX1679EUA+T | 功能描述:电池管理 Battery Charger Current-Limited Sply 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 |
| MAX1679EUA-T | 功能描述:电池管理 Battery Charger Current-Limited Sply 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 |
| MAX167ACNG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX167ACNG+ | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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