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)： 9/17頁(yè)
文件大?。?/td> 218K
代理商： MAX1757
M
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
HSD
LX
LX
PGND
CS
BATT
THM
REF
ISETIN
TO VL
SHDN
ISETOUT
VADJ
CELL
GND
CCV
CCI
CCS
TIMER1
TIMER2
R1
0.05
L1
22
μ
H
FAULT
FULLCHG
FULL CHARGE
FAST CHARGE
FAULT
FASTCHG
C2
0.1
μ
F
C5
1nF
C6
1nF
C1
0.1
μ
F
C3
1
μ
F
C12
0.22
μ
F
C10
22
μ
F
TO
SYSTEM
LOAD
INPUT
SUPPLY
C7
0.1
μ
F
C8
0.1
μ
F
R4
D2
D3
D1
R5
C4
0.1
μ
F
R6
10k
15
24
25
6
11
3
7
2
5
17
23
12
13
16
14
C15
68
μ
F
C9
0.1
μ
F
C13
4.7
μ
F
C14
0.1
μ
F
C16
0.1
μ
F
MAX1757
+
C11
22
μ
F
+
+
C17
1nF
MBR5340
C18
0.1
μ
F
THERM
Li+ BATTERY
1 TO 3 CELLS
Figure 1. Typical Application Circuit
相關(guān)PDF資料
PDF描述
MAX1757EAI Stand-Alone, Switch-Mode Li Battery Charger with Internal 14V Switch
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MAX1758EAI Stand-Alone, Switch-Mode Li Battery Charger with Internal 28V Switch
MAX1759 Replaced by TMS320C6410 : Digital Signal Processor 100-LQFP
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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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