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參數(shù)資料
| 型號： | MAX8808XETA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO8 |
| 封裝： | 2 X 2 MM, 0.80 HEIGHT, MO-229, TDFN-8 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 236K |
| 代理商： | MAX8808XETA |
Thermal Regulation
The thermal-regulation loop limits the MAX8808X/
MAX8808Y/MAX8808Z die temperature to +115°C by
reducing the charge current as necessary. This feature
not only protects the ICs from overheating, but also
allows a higher charge current without risking damage
to the system.
EN
(MAX8808X/MAX8808Z) and EN
(MAX8808Y) Charger Enable Input
The MAX8808X/MAX8808Z contain an active-low logic
input (
EN
) used to enable the charger. Drive
EN
low,
leave floating, or connect to GND to enable the
charge-control circuitry. Drive
EN
high to disable the
charger-control circuitry.
EN
has a 200k
internal pull-
down resistor.
The MAX8808Y contains an active-high enable input
(EN) to enable the charger. Drive EN high to enable the
charge-control circuitry. Drive EN low to disable the
charger-control circuitry. Do not leave EN floating. It
has no internal pullup or pulldown resistor.
ACOK
Output
The open-drain
ACOK
output asserts low when +4.25V
≤
V
IN
≤
+7V and V
IN
- V
BATT
≥
40mV.
ACOK
requires
an external pullup resistor (100k
typ).
ACOK
is high
impedance during shutdown.
M
1A Linear Li+ Battery Chargers with Integrated Pass
FET and Thermal Regulation in 2mm x 2mm TDFN
_______________________________________________________________________________________
7
ASYNCHRONOUS
FROM ANYWHERE
V
IN
> 7V OR
V
BATT
> V
IN
OR
IC DISABLED
SHUTDOWN
CHARGER = OFF
CHG = HIGH
V
I
VAD
V
I
BT
N
I NBE
V
IN
< 7V AND
V
IN
IC ENABLED
BATT
AND
FAST-CHARGE
100% CHARGER CURRENT
CHG = LOW
TOP-OFF
CHG = HIGH
TOP-OFF CONTINUES
TO REGULATE BATT AT
4.2V
I
CHARGE
< 10%
OF I
SET
I
CHARGE
> 20%
OF I
SET
PREQUAL
10% CHARGE CURRENT
CHG = LOW
V
BATT
> 2.5V
V
BATT
< 2.5V
V
BATT
< 2.4V
MAX8808X
MAX8808Y/
MAX8808Z
V
IN
> 7V OR
V
BATT
> V
IN
OR
IC DISABLED
Figure
2. Charge-State Diagram
相關PDF資料 |
PDF描述 |
|---|---|
| MAX881REVKIT | Evaluation Kit for the MAX881R |
| MAX8890EGCBFK | Analog IC |
| MAX8890EGCBFL | Analog IC |
| MAX8890EGCBFM | Analog IC |
| MAX8890EGCBGA | Analog IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8808XETA+ | 制造商:Maxim Integrated Products 功能描述:CHRGR LI-ION/LI-POL 1000MA 4.2V 8TDFN EP - Rail/Tube |
| MAX8808XETA+T | 功能描述:電池管理 1A Linear Li+ Battery Charger 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 |
| MAX8808XETA+TG104 | 功能描述:電池管理 1A Linear Li+ Battery Charger 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 |
| MAX8808XETA-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 |
| MAX8808YETA | 制造商:Maxim Integrated Products 功能描述:1A LINEAR LI+ BATT CHRGRS W. INTEG - Rail/Tube |
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