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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)： | 17/17頁 |
| 文件大?。?/td> | 218K |
| 代理商： | MAX1757EAI+ |
MAX1757
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
_______________________________________________________________________________________
9
General Description
The MAX1757 includes all of the functions necessary to
charge 1, 2, or 3 Li+ battery cells in series. It includes a
step-down DC-DC converter that controls charging
voltage and current. It also includes input source cur-
rent limiting, battery temperature monitoring, battery
undervoltage precharging, battery fault indication, and
a state machine with timers for charge termination.
The DC-DC converter uses an internal power MOSFET
switch to convert the input voltage to the charging cur-
rent or voltage. Figure 1 shows the typical application
circuit. Figure 2 shows a typical charging sequence
and Figure 3 shows the functional diagram. The charg-
ing current is set by the voltage at ISETOUT. The bat-
tery regulation voltage is measured at the BATT pin.
The battery voltage limit is set to 4.2V per cell and can
be adjusted ±5% by changing the voltage at the VADJ
pin. By limiting the adjust range, the voltage limit accu-
racy is better than 1% while using 1% setting resistors.
27
26
1
22
10
9
20
19
21
18
D4
MBR5340
8
4
28
CSSP
DCIN
CSSN
VL
BST
HSD
LX
PGND
CS
BATT
THM
REF
ISETIN
TO VL
SHDN
ISETOUT
VADJ
CELL
GND
CCV
CCI
CCS
TIMER1
TIMER2
R1
0.05
L1
22
H
FAULT
FULLCHG
FULL CHARGE
FAST CHARGE
FAULT
FASTCHG
C2
0.1
F
C5
1nF
C6
1nF
C1
0.1
F
C3
1
F
C12
0.22
F
C10
22
F
TO
SYSTEM
LOAD
INPUT
SUPPLY
C7
0.1
F
C8
0.1
F
R4
D2
D3
D1
R5
C4
0.1
F
R6
10k
15
24
25
6
11
3
7
2
5
17
23
12
13
16
14
C15
68
F
C9
0.1
F
C13
4.7
F
C14
0.1
F
C16
0.1
F
MAX1757
+
C11
22
F
+
C17
1nF
MBR5340
C18
0.1
F
THERM
Li+ BATTERY
1 TO 3 CELLS
Figure 1. Typical Application Circuit
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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 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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