|
|
PDF AT1314 Data sheet ( Hoja de datos )
| Número de pieza | AT1314 | |
| Descripción | High-Efficiency Step-Down Current Regulator | |
| Fabricantes | Aimtron Technology | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AT1314 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
www.DataSheet4U.com
AT1314
Preliminary Product Information
High-Efficiency Step-Down
Current Regulator For LEDs
Feature
Description
‧ 4.75V to 16V Supply Voltage Operating
AT1314 is a voltage-mode PWM step-down
Range.
‧ 600KHz 15% Fixed Switching Frequency.
‧ Voltage-Mode PWM Step-Down Regulator.
‧ Built-in Power MOSFET, Rds(on) 100m .
DC-DC converter capable of driving up to 1A
loads over a wide input supply range with excellent
line and load regulation characteristics. High
efficiency is obtained through the use of a low
Rds(on) P-channel power switch.
‧ 1A Output Current, Up to 91.9% Efficiency
‧ 0.4V 1.5% Internal Reference
‧ Shutdown Current less than 20uA.
‧ Thermal-Shutdown and Built-in Soft-Start.
‧ Cycle-by-Cycle Current-Limit Protection.
‧ Under-Voltage Lockout Protection.
It uses a fixed switching frequency up to 600KHz
thus allowing smaller sized components. The
output voltage level is user-programmable via an
external resistive voltage divider. The built-in
soft-start can reduce inrush current on the input
source at turn on.
‧ Output Voltage Adjustable From 0.4V to 16V.
‧ SOP-8 Package.
The device also has built-in cycle-by-cycle
current-limit, thermal shutdown, under-voltage
Application
‧ Backlight for LCD Panels
lockout and an ON/OFF logic-control that can
power down the regulator to a shutdown mode. In
shutdown mode the regulator draws less than 20uA
‧ Battery-Powered Backlight Applications
of supply current.
‧ Cell Phones
‧ PDAs
AT1314 is available in SOP-8 package.
‧ Other Handheld Devices with Dual Displays.
Block Diagram
EN
Regulator
OSC
600KHz
Error
Amplifier
-
+
0.4V
Current Sense
Amplifier
Current
Sense
+
-
Contol
Logic
PWM Comparator
Soft-
Start
FB COMP
IN
P-MOS
SW
GND
Aimtron reserves the right without notice to change this circuitry and specifications.
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
3/24/2006 REV:2.0
Email: [email protected]
1 page  
AT1314
Preliminary Product Information
High-Efficiency Step-Down
Current Regulator For LEDs
Typical characteristics
(See the Typical Applications Circuit, L=8.2uH ~ 47uH,unless otherwise noted)
LED Current = 180mA
LED Current = 1A
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
3/24/2006 REV:2.0
Email: [email protected]
5 Page 
Outline 8-pin SOP
AT1314
Preliminary Product Information
High-Efficiency Step-Down
Current Regulator For LEDs
SYMBOL
A
B
C
D
E
F
H
J
K
M
e1
INCHES
MIN
MAX
0.188
0.197
0.149
0.158
0.228
0.244
0.050 BSC
0.013
0.020
0.004
0.010
0.053
0.069
0.011
0.019
0.007
0.010
0.016
0.050
45O
00 80
MILLIMETERS
MIN
MAX
4.80 5.00
3.80 4.00
5.80 6.20
1.27 BSC
0.33 0.51
0.10 0.25
1.35 1.75
0.28 0.48
0.19 0.25
0.40 1.27
45O
00 80
NOTES
-
-
-
-
-
-
-
-
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
3/24/2006 REV:2.0
Email: [email protected]
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AT1314.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AT1310 | MicroPower Charge Pump Converter | Aimtron Technology |
| AT1312A | High Efficiency Constant Current White-LEDs Driver | Aimtron Technology |
| AT1312B | High Efficiency Constant Current White-LEDs Driver | Aimtron Technology |
| AT1312C | High Efficiency Constant Current White-LEDs Driver | Aimtron Technology |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |