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参数资料
| 型号： | MAX1737EEI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/18页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR BAT CHARGE 28-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 28-QSOP |
| 包装： | 带卷 (TR) |
MAX1737
Stand-Alone Switch-Mode
Lithium-Ion Battery-Charger Controller
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
D1
INPUT
SUPPLY
D2
28
C7
0.1 μ F
DCIN
CSSP
27
C8
0.1 μ F
R12
C1
4.7 μ F
C2
0.1 μ F
1
18
VL
SHDN
MAX1737
CSSN
26
C9
0.1 μ F
+
C18
22 μ F
+
C19
22 μ F
SYSTEM
LOAD
C3
1 μ F
R8
R9
5
2
3
8
12
6
REF
ISETIN
ISETOUT
VADJ
CELL
GND
VLO
BST
DHI
LX
DLO
22
23
25
24
21
D3
C10
0.1 μ F
C11
0.1 μ F
L1
22 μ H
R18
C15
68 μ F
C4
0.1 μ F
R1
10k
9
CCV
PGND
20
THERMISTOR
1nF
C5
47nF
11
CCI
CS
19
0.1 μ F
Li+
BATTERY
(1 TO 4 CELLS)
C6
47nF
C13
10
CCS
BATT
7
0.1 μ F
1nF
13
TIMER1
THM
4
C14
1nF
14
16
TIMER2
FASTCHG
FAST CHARGE
FULL CHARGE
FAULT
Figure 1. Typical Application Circuit
Maxim Integrated
17
15
FULLCHG
FAULT
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1737EVKIT | 功能描述:电池管理 Evaluation Kit for the MAX1737 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1739EEP | 功能描述:显示驱动器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX1739EEP+ | 功能描述:显示驱动器和控制器 CCFL Backlight Controller RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX1739EEP+T | 功能描述:显示驱动器和控制器 CCFL Backlight Controller RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX1739EEP-T | 功能描述:显示驱动器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
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