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参数资料
| 型号： | MAX1757EAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/17页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHRG LI+ 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 6 V ~ 14 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
MAX1757
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
MBR5340
INPUT
SUPPLY
D1
D2
28 DCIN
CSSP
27
C7
0.1 μ F
MAX1757
C8
0.1 μ F
R1
0.05 Ω
TO VL
17
SHDN
CSSN
VL
26
1
C9
0.1 μ F
C13
4.7 μ F
+
C12
0.22 μ F
+
C10
22 μ F
+
C11
22 μ F
TO
SYSTEM
LOAD
C3
1 μ F
R4
R5
5
2
3
7
11
REF
ISETIN
ISETOUT
VADJ
CELL
BST
HSD
HSD
LX
LX
22
10
9
20
19
D3
C14
0.1 μ F
L1
22 μ H
C4
0.1 μ F
C17
R6
10k
6
25
GND
CCV
PGND
18
D4
MBR5340
1nF
C1
0.1 μ F
24
CCI
CS
21
C2
0.1 μ F
C5
1nF
23
12
CCS
TIMER1
BATT
THM
8
4
C16
0.1 μ F
C18
0.1 μ F
C15
68 μ F
Li+ BATTERY
C6
1 TO 3 CELLS
FAST CHARGE
FULL CHARGE
FAULT
1nF
13
15
16
14
TIMER2
FASTCHG
FULLCHG
FAULT
THERM
Figure 1. Typical Application Circuit
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-
Maxim Integrated
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.
9
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相关代理商/技术参数 |
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|---|---|
| MAX1757EVKIT | 功能描述:电池管理 Evaluation Kit for the MAX1757 MAX1758 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 |
| MAX17582GTL+ | 制造商:Maxim Integrated Products 功能描述:1.2MHZ LOW-COST HIGH-PERFORMANCE - Rail/Tube |
| MAX17582GTM+ | 功能描述:电流型 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX17582GTM+T | 功能描述:电流型 PWM 控制器 Dual-Phase Quick-PWM Controller RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX1758EAI | 功能描述:电池管理 Li+ Battery Charger w/28V Switch 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 |
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