OCP8109A Datasheet: One-Channel High Power LED Controller





OCP8109A One-Channel High Power LED Controller Datasheet

Part Number OCP8109A
Description One-Channel High Power LED Controller
Manufacture Orient Chip
Total Page 2 Pages
PDF Download Download OCP8109A Datasheet PDF

Features: WWW.ORIENT-CHIP.COM OCP8109A One-Chann el High Power LED Controller ◼ Gener al Description The OCP8109A is a high p ower LED driver, non-synchronous boost controller. The OCP8109A can use for th e LED backlight in LCD panels. It is de signed for current mode control power c onverters that require a single drive o utput, such as boost LED driver and SEP IC topologies. The OCP8109A is suitable for topologies which require a ground source N-channel FET including boost, S EPIC and various LED driver application s. The device features include power MO SFET over-current protection (OCP), ove r-voltage protection (OVP), under-volta ge lock-out (UVLO), output to ground sh ort-circuit protection (SCP) and Over T emperature protection (OTP). A soft-sta rt feature is provided to minimize in-r ush current during start-up. The OCP810 9A is available in SOP-8L package, and it is RoHS compliant. Operating tempera ture range of the OCP8109A is from -40 C to 85°C. ◼ Features ⚫ Wide Supply Voltage Range: 10V ~.

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OCP8109A
One-Channel High Power LED Controller
General Description
The OCP8109A is a high power LED driver,
non-synchronous boost controller. The OCP8109A can
use for the LED backlight in LCD panels. It is designed
for current mode control power converters that require a
single drive output, such as boost LED driver and
SEPIC topologies.
The OCP8109A is suitable for topologies which
require a ground source N-channel FET including boost,
SEPIC and various LED driver applications.
The device features include power MOSFET
over-current protection (OCP), over-voltage protection
(OVP), under-voltage lock-out (UVLO), output to
ground short-circuit protection (SCP) and Over
Temperature protection (OTP). A soft-start feature is
provided to minimize in-rush current during start-up.
The OCP8109A is available in SOP-8L package,
and it is RoHS compliant. Operating temperature range
of the OCP8109A is from -40°C to 85°C.
Features
Wide Supply Voltage Range: 10V ~ 25V
For Boost, SEPIC, LED Driver Applications
Number of LEDs in series limited by external
MOSFETs rating
External Enable Control
EN/PWM Filter Dimming Control
105KHz Fixed Operation Frequency
Over-voltage Protection (Open-LED Protection)
Output to Ground Short-circuit Protection
Boost Diode Open Protection
Power MOSFET Current Limited
Low in-rush Current Soft-start Function
Under-voltage Lock-out
Thermal Shutdown
Low Standby Current
TA= -40 ~ 85
Available in SOP-8L Package
Applications
LCD White LED Backlighting
LCD TVs
Automotive and Infotainment Displays
Battery Powered Systems
Industrial Control Systems
Pin Configuration
SOP-8L (Top View)
Pin
Name
VCC
EN
CMP
IFB
OVP
CS
GND
SWOUT
Pin No.
SOP-8L
1
2
3
4
5
6
7
8
Figure 1, Pin Assignments of OCP8109A
I/O Pin Function
P Input Power for controller and internal MOSFET driver
I ON/OFF control for the controller
I/O Output of the error amplifier
I LED Current Sense Input
I Output over-voltage protection sense
I Current/Voltage sense pin
P Ground
O Boost Power MOSFET Drive Output
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Ver. 1.1 Feb .27, 2018
源于灿瑞 磁传天下

     






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