Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

AAT1236 Datasheet(PDF) 2 Page - Advanced Analog Technology, Inc.

Part No. AAT1236
Description  High Efficiency White LED Drivers for Backlight and Keypad
Download  24 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  AAT [Advanced Analog Technology, Inc.]
Homepage  http://www.aatech.com.tw
Logo AAT - Advanced Analog Technology, Inc.

AAT1236 Datasheet(HTML) 2 Page - Advanced Analog Technology, Inc.

  AAT1236 Datasheet HTML 1Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 2Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 3Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 4Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 5Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 6Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 7Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 8Page - Advanced Analog Technology, Inc. AAT1236 Datasheet HTML 9Page - Advanced Analog Technology, Inc. Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 24 page
background image
AAT1236
High Efficiency White LED Drivers
for Backlight and Keypad
2
1236.2007.02.1.1
Pin Descriptions
Pin Configuration
TDFN34-16
(Top View)
EN
B1
B2
VIN
OV
3
RSET
IN
GND
A2
A3
AGND
LIN
A1
SCL
SDA
SW
4
5
1
2
6
7
8
14
13
12
16
15
11
10
9
Pin #
Symbol
Function
1
VIN
Input supply for the converter. Connect a 2.2µF or larger ceramic capacitor from VIN to GND.
2
OV
Boost output over voltage detect pin. Use resistor divider to set the circuit's external over-
voltage protection. See Applications Information for details.
3
EN
Enable pin.
4
B1
Backlight current sink 1. Connect the cathode of the last LED in the string to B1.
5
B2
Backlight current sink 2. Connect the cathode of the last LED in the string to B2.
6
RSET
LED current set resistor. A 22.6k
Ω resistor from RSET to AGND sets the maximum LED cur-
rent in A1-A3 and B1-B2 to 20mA.
7
IN
Input bias supply for the internal circuitry. Connect IN to VIN directly at the AAT1236.
8
GND
Power ground for the boost converter. Connect GND to AGND at a single point as close to
the AAT1236 as practical.
9
SW
Boost converter switching node. A 2.2µH inductor, connected between SW and LIN, sets the
boost converter's switching frequency.
10
SDA
I2C interface serial data line.
11
SCL
I2C interface serial clock line.
12
AGND
Ground pin. Connect AGND to GND at a single point as close to the AAT1236 as practical.
13
A3
Auxiliary current sink 3. Connect the cathode of the last LED in the string to A3.
14
A2
Auxiliary current sink 2. Connect the cathode of the last LED in the string to A2.
15
A1
Auxiliary current sink 1. Connect the cathode of the last LED in the string to A1.
16
LIN
Switched power input. Connect LIN to the external power inductor.
EP
Exposed paddle (bottom). Connected internally to SW. Connect to SW or leave floating.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn