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參數資料
| 型號： | MAX1665VESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Lithium-Ion Battery Pack Protector |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, MS-012AA, SOIC-8 |
| 文件頁數： | 6/12頁 |
| 文件大?。?/td> | 164K |
| 代理商： | MAX1665VESA |
M
Lithium-Ion Battery Pack Protector
6
_______________________________________________________________________________________
POWER
ON
POWER
ON
CHARGE = 1
RDY = 1
T =
2.4ms
T =
2.4ms
T =
96ms
T =
6.4ms
T =
160
μ
s
UV = 0
OV = 0
T =
2.4ms
T =
96ms
T =
6.4ms
T =
160
μ
s
UV = 0
OV = 1
T =
2.4ms
T =
96ms
T =
6.4ms
T =
160
μ
s
UV = 1
OV = 0
CHARGE = 0
CHARGE = 0
CHARGE = 0
CHARGE = 0
T =
2.4ms
T =
96ms
T =
6.4ms
T = 160
μ
s
UV = 1
OV = 1
T =
160
μ
s
T =
640
μ
s
T =
2.4ms
T =
640
μ
s
T =
640
μ
s
T =
640
μ
s
T =
640
μ
s
SLEEP
DSG = 0
CHG = 0
SUPPLIES
ON
DSG = 0
CHG = 0
NORMAL
DSG = 1
CHG = 1
NORMAL
PULSE OFF
DSG = *
CHG = *
NORMAL
PULSE ON
DSG = 1
CHG = 1
NORMAL
ZCHK
DSG = 1
CHG = 1
NORMAL
MEASURE
DSG = 1
CHG = 1
OV
DSG = 1
CHG = 0
OV
PULSE OFF
DSG = 1
CHG = 0
OV
PULSE ON
DSG = 1
CHG = 0
OV
ZCHK
DSG = 1
CHG = 0
OV
MEASURE
DSG = 1
CHG = 0
UV
DSG = 1
CHG = 1
UV
PULSE OFF
DSG = *
CHG = *
UV
PULSE ON
DSG = 1
CHG = 1
UV
ZCHK
DSG = 1
CHG = 1
UV
MEASURE
DSG = 1
CHG = 1
OV & UV
DSG = 1
CHG = 0
OV & UV
PULSE OFF
DSG = 1
CHG = 0
OV & UV
PULSE ON
DSG = 1
CHG = 0
* = 0 FOR OVERCURRENT FAULT; 1 OTHERWISE
OV & UV
ZCHK
DSG = 1
CHG = 0
OV & UV
MEASURE
DSG = 1
CHG = 0
START
COUNTER
DSG = 0
CHG = 0
START-UP
ZCHK
DSG = 0
CHG = 0
START-UP
MEASURE
DSG = 0
CHG = 0
WAIT FOR
BLANK = 0
DSG = 0
CHG = 0
C
S
S
S
S
Figure 1. State Diagram
_______________Detailed Description
The MAX1665S, MAX1665V, and MAX1665X supervise
the charging and discharging processes on
Li+
cells.
Designed for 2, 3, and 4-cell applications, these devices
monitor the voltage across each cell to provide protec-
tion against overcurrent, overvoltage, and undervoltage.
Figure 1 shows the MAX1665 state diagram. Two con-
trol pins, CHG and DSG, drive the gates of two series-
connected external N-channel MOSFETs, enabling/
disabling the charging/discharging process as neces-
sary (see
Typical Operating Circuit
). The voltages at
B1P, B2P, B3P, and B4P are measured differentially
Table 2. Functionality Truth Table for V
BN
> V
PKN
+ 0.018V (Charge Mode)
*
Assuming no load on CHG or DSG.
0
1
1
1
25
25
No
No
High
High
Low
Low
0
0
1
1
1
0
1
1
0
0
25
25
25
No
Yes
Yes
Gated
Gated
High
Gated
Gated
Low
0
0
0
1
1
0
UNDERVOLTAGE
0
1
0
OVERVOLTAGE
0
0
1
25
25
25
MAX
SUPPLY
CURRENT*
(μA)
GATE
CLOCKED
No
No
No
High
High
High
DSG
Low
High
High
CHG
DISCHARGE
OVERCURRENT
0
0
0
0
0
0
CHARGE
OVERCURRENT
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1665VESA+ | 功能描述:電池管理 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 |
| MAX1665VESA+T | 功能描述:電池管理 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 |
| MAX1665XESA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1666AEEP | 功能描述:電池管理 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 |
| MAX1666AEEP+ | 功能描述:電池管理 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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