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參數(shù)資料
| 型號： | AAT2550 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | Total Power Solution for Portable Applications |
| 中文描述： | 總功率便攜式應用解決方案 |
| 文件頁數(shù)： | 2/35頁 |
| 文件大?。?/td> | 914K |
| 代理商： | AAT2550 |
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Pin Descriptions
Pin #
Symbol
Function
1
ENA
Enable pin for Converter A. When connected to logic low, it disables the step-down converter
and consumes less than 1μA of current. When connected to logic high, the converter operates
normally.
Power switching node for Converter A. Connect the inductor to this pin. Internally, it is connect-
ed to the drain of both high- and low-side MOSFETs.
Power ground. Connect the PGND pins together as close to the IC as possible. Connect
AGND to PGND at a single point as close to the IC as possible.
Status report to the microcontroller via serial interface (open drain).
Not connected.
Charge current set point. Connect a resistor from this pin to ground. Refer to Typical
Characteristics curves for resistor selection.
Battery charging and sensing. Connect the positive terminal of the battery to BAT.
Input for adapter charger.
Analog signal ground. Connect AGND to PGND at a single point as close to the IC as possible.
Enable pin for the battery charger. When connected to logic low, the battery charger is dis-
abled and consumes less than 1μA of current. When connected to logic high, the charger
operates normally.
Temperature sense input. Connect to a 10k
Ω
NTC thermistor.
Battery charge status indicator pin to drive an LED. It is an open drain input.
Battery charge status indicator pin to drive an LED. It is an open drain input.
Timing capacitor to adjust internal watchdog timer. Sets maximum charge time for adapter
powered trickle, constant current, and constant voltage charge modes.
Power switching node for Converter B. Connect the inductor to this pin. Internally, it is connect-
ed to the drain of both high- and low-side MOSFETs.
Enable pin for Converter B. When connected to logic low, it disables the step-down converter
and consumes less than 1μA of current. When connected to logic high, the converter operates
normally.
Input voltage for Converter B.
Output voltage feedback input for Converter B. FBB senses the output voltage for regulation
control. For fixed output versions, connect FBB to the output voltage. For adjustable versions,
drive FBB from the output voltage through a resistive voltage divider. The FBB regulation
threshold is 0.6V.
Output voltage feedback input for Converter A. FBA senses the output voltage for regulation
control. For fixed output versions, connect FBA to the output voltage. For adjustable versions,
drive FBA from the output voltage through a resistive voltage divider. The FBA regulation
threshold is 0.6V.
Input voltage for Converter A.
Exposed paddle; connect to ground directly beneath the package.
2
LXA
3, 17
PGND
4
DATA
N/C
ADPSET
5, 7
6
8
9
BAT
ADP
AGND
ENBAT
10, 11, 22
12
13
14
15
16
TS
STAT2
STAT1
CT
18
LXB
19
ENB
20
21
INB
FBB
23
FBA
24
EP
INA
AAT2550
Total Power Solution for Portable Applications
2
2550.2006.07.1.0
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| AAT2554 | Total Power Solution for Portable Applications |
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| AAT2554IRN-CAQ-T1 | Total Power Solution for Portable Applications |
| AAT2554IRN-CAT-T1 | Total Power Solution for Portable Applications |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT2550_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Total Power Solution for Portable Applications |
| AAT2550ISK-CAA-T1 | 制造商:Skyworks Solutions Inc 功能描述:Voltage Regulators - Switching Regulators 2 step-down conv + battery charger 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT2552 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Total Power Solution for Portable Applications |
| AAT2552_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Total Power Solution for Portable Applications |
| AAT2552IRN-CAE-T1 | 功能描述:電荷泵 Total Pwr Solution for Portable App RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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