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参数资料
| 型号： | MAX1758EAI+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 28V Switch |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28 |
| 封装： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件页数： | 17/17页 |
| 文件大小： | 224K |
| 代理商： | MAX1758EAI+ |
MAX1758
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 28V Switch
_______________________________________________________________________________________
9
Detailed Description
The MAX1758 includes all of the functions necessary to
charge 1, 2, 3, or 4 Li+ battery cells in series. It
includes a step-down DC-DC converter that controls
charging voltage and current. It also includes input
source current limiting, battery temperature monitoring,
battery undervoltage precharging, battery fault indica-
tion, and a state machine with timers for charge termi-
nation.
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 charging
current is set by the voltage at ISETOUT. The battery
voltage is measured at the BATT pin. The battery regu-
lation 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 accuracy is
better than 1% while using 1% setting resistors.
27
26
1
22
10
9
20
19
21
18
D4
8
4
28
CSSP
DCIN
CSSN
VL
BST
HSD
LX
PGND
CS
BATT
THM
REF
ISETIN
TO VL
SHDN
ISETOUT
MBRS340
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
MAX1758
+
C11
22
F
+
C17
1nF
THERM
Li+ BATTERY
1 TO 4 CELLS
C18
0.1
F
Figure 1. Typical Application Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX1758EAI+T | 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 |
| MAX1758EAI-T | 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 |
| MAX1758EVKIT | 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 |
| MAX17595ATE+ | 功能描述:电流型 PWM 控制器 AC/DC-DC/DC Peak Current-Mode Cnvrtr 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 |
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