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參數(shù)資料
| 型號： | MAX1757EAI+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 14V Switch |
| 中文描述： | BATTERY CHARGE CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁數(shù)： | 16/17頁 |
| 文件大小： | 218K |
| 代理商： | MAX1757EAI+ |
MAX1757
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 2.2F or larger
ceramic capacitor.
2
ISETIN
Input Current Limit Adjust. Use a voltage divider to set the voltage between 0 and VREF. See Input Current
Regulator section.
PIN
3
ISETOUT
Battery Charging Current Adjust. Use a voltage divider to set the voltage between 0 and VREF. 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 VREF 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 1F 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 0.1F 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 0.1F or
greater capacitor. See Detailed Description.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| MAX17582GTL+ | 制造商:Maxim Integrated Products 功能描述:1.2MHZ LOW-COST HIGH-PERFORMANCE - Rail/Tube |
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