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AWINIC

AW9967 Datasheet Preview

AW9967 Datasheet

Boost WLED Driver

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AW9967
Jan 2019 V1.4
High Efficiency, Support 0.3% PWM Dimming
Boost WLED Driver
FEATURES
GENERAL DESCRIPTION
Support 0.3% PWM dimming
The AW9967 is a white LED (WLED) driver with
l
200mV Reference Voltage
Up to 89% Efficiency for 2P7S LEDs
PWM control input for CABC operation
1.1MHz Switching Frequency
38V Over-voltage Protection for up to 10 LEDs
in Series
2.7V to 5.5V Input Voltage Range
tia integrated boost converter. The boost converter
runs at 1.1MHz fixed switching frequency, with an
internal 40V, 2A switch FET, the AW9967 can
drive one string (up to 10 LEDs) and parallel LED
strings.
n The full-scale WLED current can be set by the
equation 200mV/RSET. RSET should be changed for
e parallel applications.
The current of WLED can also be set with duty
Over-current and Over-temperature Protection
Built-in Soft-start Limits Inrush Current
DFN 2mm X2mm X0.75mm-6L package
APPLICATIONS
cycle of PWM signal applied to the CTRL pin with
20kHz~100kHz.
d AW9967 integrates built-in soft-start function to
i minimize the power supply inrush current. AW9967
f also integrates over-current protection, LED open
protection and over temperature protection(OTP)
nto prevent chip from entering abnormal operating
Mobile Phones
Portable Media Players
o conditions.
PDAs
GPS Receivers
C
ic TYPICAL APPLICATION CIRCUIT
inVIN
CIN1
10μF
CIN2*optional
100nF
L1 Schottky Diode
10μH
6
VIN
*optional
4
COUT2
SW 33pF/50V
COUT1
1μF/50V
aw
ON/OFF
DIMMING CONTROL
AW9967DNR
5 CTRL
FB 1
GND
RSET
5Ω
3,7
www.awinic.com.cn
1
Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD




AWINIC

AW9967 Datasheet Preview

AW9967 Datasheet

Boost WLED Driver

No Preview Available !

PIN CONFIGURATION AND TOP MARK
AW9967
Jan 2019 V1.4
AW9967DNR
(Top View)
AW9967DNR Marking
(Top View)
FB 1
6 VIN
l
NC 2
GND 3
7
GND
5 CTRL
4 SW
tia
n 5HRHAW9967DNR
XXXXProduction Tracing Code
Figure 1 Pin Configuration and Top Mark
e
PIN DEFINITION
No.
NAME
fid DESCRIPTION
1
2
FB
NC
n Feedback pin. Connect RSET from FB to GND.
No Connection
3
4
GND
SW
o Ground.
Switching node.
5
6
CTRL
VIN
C Enable pin. It also can be used for PWM digital dimming.
Power
7
ic GND
Exposed pad should be soldered to PCB board and Connected to
GND.
in
aw
www.awinic.com.cn
2
Copyright © 2018 SHANGHAI AWINIC TECHNOLOGY CO., LTD


Part Number AW9967
Description Boost WLED Driver
Maker AWINIC
PDF Download

AW9967 Datasheet PDF






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