參數(shù)資料
型號(hào)： MAX1737EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Stand-Alone Switch-Mode Lithium-Ion Battery-Charger Controller
中文描述： BATTERY CHARGE CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137AF, QSOP-28
文件頁(yè)數(shù)： 9/18頁(yè)
文件大小： 234K
代理商： MAX1737EEI
M
Stand-Alone Switch-Mode
Lithium-Ion Battery-Charger Controller
_______________________________________________________________________________________
9
Detailed Description
The MAX1737 includes all of the functions necessary to
charge between one and four series Li+ battery cells. It
includes a high-efficiency synchronous-rectified step-
down DC-DC converter that controls charging voltage
and current. It also includes input source-current limit-
ing, battery temperature monitoring, battery undervolt-
age precharging, battery fault indication, and a state
machine with timers for charge termination.
The DC-DC converter uses an external dual N-channel
MOSFET as a switch and a synchronous rectifier to
convert the input voltage to the charging current or volt-
age. The typical application circuit is shown in Figure 1.
Figure 2 shows a typical charging sequence and
Figure 3 shows the block diagram. Charging current is
set by the voltage at ISETOUT and the voltage across
R18. The battery voltage is measured at the BATT pin.
The battery regulation voltage 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
27
26
22
23
25
24
21
20
19
7
4
28
CSSP
DCIN
CSSN
VLO
BST
DHI
LX
DLO
PGND
CS
BATT
THM
REF
ISETIN
VL
SHDN
ISETOUT
VADJ
CELL
GND
CCV
CCI
CCS
TIMER1
TIMER2
R12
Li+
BATTERY
(1 TO 4 CELLS)
L1
R18
22
μ
H
FAULT
FULLCHG
FULL CHARGE
FAST CHARGE
FAULT
FASTCHG
C6
47nF
C13
1nF
C14
1nF
1nF
C5
47nF
C4
C3
1
μ
F
C1
4.7
μ
F
C18
22
μ
F
C19
22
μ
F
SYSTEM
LOAD
INPUT
SUPPLY
C2
0.1
μ
F
C7
0.1
μ
F
C8
0.1
μ
F
R1
10k
R8
D1
D3
D2
R9
0.1
μ
F
16
11
9
6
12
3
8
2
5
18
1
10
13
14
17
15
0.1
μ
F
0.1
μ
F
C15
68
μ
F
C9
0.1
μ
F
C11
0.1
μ
F
C10
0.1
μ
F
MAX1737
+
+
THERMISTOR
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
MAX1737EEI+ 功能描述:電池管理 Stand-Alone Switch-M L-Ion Battery Chargr 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
MAX1737EEI+ 制造商:Maxim Integrated Products 功能描述:SEMICONDUCTOR ((NW))
MAX1737EEI+T 功能描述:電池管理 Stand-Alone Switch-M L-Ion Battery Chargr 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
MAX1737EEI-T 功能描述:電池管理 Stand-Alone Switch-M L-Ion Battery Chargr 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
MAX1737EVKIT 功能描述:電池管理 Evaluation Kit for the MAX1737 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
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