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參數(shù)資料
| 型號(hào)： | MAX1679EUA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single-Cell Li Battery Charger for Current-Limited Supply |
| 中文描述： | BATTERY CHARGE CONTROLLER, PDSO8 |
| 封裝： | UMAX-8 |
| 文件頁(yè)數(shù)： | 5/12頁(yè) |
| 文件大?。?/td> | 138K |
| 代理商： | MAX1679EUA |
Single-Cell Li+ Battery Charger
for Current-Limited Supply
M
_______________________________________________________________________________________
5
0.9900
1.0000
0.9950
1.0100
1.0050
1.0150
1.0200
-40
20
40
-20
0
60
80
100
TIMER PERIOD vs.
AMBIENT TEMPERATURE
M
TEMPERATURE (°C)
T
NORMALIZED TO +25°C
Typical Operating Characteristics
(VIN= V
CHG
= +10V, VBATT= +4.2V, THERM = 10k
to GND, TA= +25°C, unless otherwise noted.)
4.0
4.8
4.4
4.6
4.2
5.2
5.0
5.8
5.6
5.4
6.0
5
15
10
20
25
PRECHARGE CURRENT
vs. INPUT VOLTAGE
M
V
IN
(V)
P
V
BATT
= 4.1V
V
BATT
= 2V
V
BATT
= 0V
0.9975
0.9985
0.9980
0.9995
0.9990
1.0010
1.0005
1.0000
1.0015
-40
0
-20
20
40
60
80
100
NORMALIZED BATT REGULATION VOLTAGE
vs. TEMPERATURE
M
TEMPERATURE (°C)
B
NORMALIZED TO +25°C
Pin Description
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
ADJ
5
Ground. See Layout Guidelines for information on system grounding. Connect the battery’s negative termi-
nal to GND.
GND
6
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.
THERM
7
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).
BATT
8
Maximum Total Charge-Time Selection. See Table 3 for timer options.
TSEL
4
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.
CHG
3
PIN
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
GATE
2
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.
IN
1
FUNCTION
NAME
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1679 | Single-Cell Li Battery Charger for Current-Limited Supply |
| MAX1680 | 125mA, Frequency-Selectable, Switched-Capacitor Voltage Converters |
| MAX1680ESA | 125mA, Frequency-Selectable, Switched-Capacitor Voltage Converters |
| MAX1681ESA | 125mA, Frequency-Selectable, Switched-Capacitor Voltage Converters |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1679EUA+ | 功能描述:電池管理 Battery Charger Current-Limited Sply RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1679EUA+T | 功能描述:電池管理 Battery Charger Current-Limited Sply RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1679EUA-T | 功能描述:電池管理 Battery Charger Current-Limited Sply RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX167ACNG | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX167ACNG+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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