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參數(shù)資料
| 型號(hào)： | MAX1757 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Stand-Alone, Switch-Mode Li Battery Charger with Internal 14V Switch |
| 中文描述： | 獨(dú)立的開(kāi)關(guān)模式Li+電池充電器，內(nèi)置14V開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 8/17頁(yè) |
| 文件大?。?/td> | 218K |
| 代理商： | MAX1757 |
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M
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
8
_______________________________________________________________________________________
NAME
FUNCTION
1
VL
Chip Power Supply. Output of the 5.4V linear regulator from DCIN. Bypass VL to GND with 2.2μF or larger
ceramic capacitor.
2
ISETIN
Input Current Limit Adjust. Use a voltage divider to set the voltage between 0 and V
REF
. See
Input Current
Regulator
section.
PIN
3
ISETOUT
Battery Charging Current Adjust. Use a voltage divider to set the voltage between 0 and V
REF
. See
Charging Current Regulator
section.
4
THM
Thermistor Input. Connect a thermistor from THM to GND to set qualification temperature range. If unused,
connect a 10k
resistor from THM to GND. See
Thermistor
section.
8
BATT
Battery Voltage-Sense Input and Current-Sense Negative Input
7
VADJ
Voltage Adjustment. Use a voltage divider to set the voltage between 0 and V
REF
to adjust the battery reg-
ulation voltage by ±5%. See
Battery Regulation Voltage
section.
6
GND
Analog Ground
5
REF
4.2V Reference Voltage Output. Bypass REF to GND with 1μF or larger ceramic capacitor.
13
TIMER2
Timer2 Adjustment. Connect a capacitor from TIMER2 to GND to set the fast-charge time. See
Timers
section.
12
TIMER1
Timer1 Adjustment. Connect a capacitor from TIMER1 to GND to set the prequalification, full-charge, and
top-off times. See
Timers
section.
11
CELL
Cell-Count Programming Input. Connect CELL to GND or REF to set 1 or 3 cells, or leave unconnected to
set 2 cells.
9, 10
HSD
High-Side Drain. This is the drain of the internal high-side FET. See Figure 3.
Pin Description
14
FAULT
Charge Fault Indicator. Open-drain output pulls low when charging terminates abnormally. See Table 1.
15
FASTCHG
Fast-Charge Indicator. Open-drain output pulls low when charging with constant current.
16
FULLCHG
Full-Charge Indicator. Open drain output pulls low when charging with constant voltage in full-charge state.
17
SHDN
Shutdown Input. Drive
SHDN
low to disable charging. Connect
SHDN
to VL for normal operation.
18
PGND
Power Ground. Current from the low-side power MOSFET switch source flows through PGND.
19, 20
LX
Power Inductor Switching Node and High-Side Power MOSFET Source
21
CS
Battery Current-Sense Positive Input. Connects to internal 0.1
resistor between BATT and CS.
22
BST
High-Side MOSFET Gate Drive Bias. Connect a 0.1μF capacitor from BST to LX.
23
CCS
Charger Source Current Regulation Loop Compensation Point. See
Compensation
section.
24
CCI
Battery Charge Current Regulation Loop Compensation Point. See
Compensation
section.
25
CCV
Voltage Regulation Loop Compensation Point. See
Compensation
section.
26
CSSN
Source Current-Sense Negative Input. See
Input Current Regulator
section.
27
CSSP
Source Current-Sense Positive Input. See
Input Current Regulator
section.
28
DCIN
Power-Supply Input. DCIN is the input supply for the VL regulator. Bypass DCIN to GND with a 0.1μF or
greater capacitor. See
Detailed Description
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1757EAI | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類(lèi)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 |
| MAX1757EAI+ | 功能描述:電池管理 Li+ Battery Charger w/Int 14V Switch RoHS:否 制造商:Texas Instruments 電池類(lèi)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 |
| MAX1757EAI+T | 功能描述:電池管理 Li+ Battery Charger w/Int 14V Switch RoHS:否 制造商:Texas Instruments 電池類(lèi)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 |
| MAX1757EAI-T | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類(lèi)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 |
| MAX1757EVKIT | 功能描述:電池管理 Evaluation Kit for the MAX1757 MAX1758 RoHS:否 制造商:Texas Instruments 電池類(lèi)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 |
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