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參數(shù)資料
| 型號： | AAT1239ITP-1-T1 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 40V Step-Up Converter for 4 to 10 White LEDs |
| 中文描述： | 40V的升壓轉(zhuǎn)換器為4至10個白光LED |
| 文件頁數(shù)： | 2/21頁 |
| 文件大?。?/td> | 915K |
| 代理商： | AAT1239ITP-1-T1 |
AAT1239-1
40V Step-Up Converter for 4 to 10 White LEDs
SwitchReg
TM
PRODUCT DATASHEET
2
1239-1.2007.10.1.0
w w w . a n a l o g i c t e c h . c o m
Pin Descriptions
Pin #
1
2
Symbol
PVIN
EN/SET
Function
Input power pin; connected to the source of the P-channel MOSFET. Connect to the input capacitor(s).
IC enable pin and S
2
Cwire input control to set output current.
FB voltage range select. A logic LOW sets the FB voltage range from 0.4V to 0.1V; a logic HIGH sets the
FB voltage range from 0.6V to 0.3V.
Input voltage for the converter. Connect directly to the PVIN pin.
No connection.
Boost converter switching node. Connect the power inductor between this pin and LIN.
Power ground for the boost converter.
Ground pin.
Feedback pin. Connect a resistor to ground to set the maximum LED current.
Feedback pin for over-voltage protection sense.
Switched power input. Connect the power inductor between this pin and SW.
3
SEL
4
5
VIN
N/C
SW
PGND
AGND
FB
OVP
LIN
6, 7
8
9
10
11
12
Pin Configuration
TSOPJW-12
(Top View)
1
2
3
4
5
6
12
11
10
9
8
7
PVIN
EN/SET
SEL
VIN
N/C
SW
LIN
OVP
FB
AGND
PGND
SW
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