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參數(shù)資料
| 型號： | MAX1758EAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 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 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁數(shù)： | 9/17頁 |
| 文件大?。?/td> | 224K |
| 代理商： | MAX1758EAI |
M
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
MBRS340
8
4
28
CSSP
DCIN
CSSN
VL
BST
HSD
HSD
LX
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
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
MAX1758
+
C11
22
μ
F
+
+
C17
1nF
THERM
Li+ BATTERY
1 TO 4 CELLS
C18
0.1
μ
F
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 |
|---|---|
| MAX1758EAI+ | 功能描述:電池管理 Li+ Battery Charger w/28V Switch 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 |
| MAX1758EAI+T | 功能描述:電池管理 Li+ Battery Charger w/28V Switch 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 |
| MAX1758EAI-T | 功能描述:電池管理 Li+ Battery Charger w/28V Switch 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 |
| MAX1758EVKIT | 功能描述:電池管理 Evaluation Kit for the MAX1757 MAX1758 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 |
| MAX17595ATE+ | 功能描述:電流型 PWM 控制器 AC/DC-DC/DC Peak Current-Mode Cnvrtr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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