900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  Richtek Technology Electronic Components Datasheet  

RT9292 Datasheet

Asyn-Boost Converter

No Preview Available !

RT9292
Small Package, High Performance, Asyn-Boost Converter
for 6 White LEDs
General Description
The RT9292 is a high frequency and high efficiency
asynchronous boost converter for WLED driving
application. It integrates a 28V MOSFET to support up to
6 White LEDs for panel backlighting and OLED power
applications. Besides, an internal soft start function is
integrated to reduce the inrush current. Moreover, the
device operates with 1MHz fixed switching frequency for
the use of small external components and better EMI
performance. For lower voltage application, the IC provides
a 26V over voltage protection function for using the low-
cost and small output capacitors. The LED current is
initially set by the external sense resistor (RSET), and the
feedback voltage for the RT9292 series will be 104mV
and 330mV respectively. The RT9292 is available in TSOT-
23-6 and WDFN-8L 2x2 tiny packages to achieve best
solution for PCB space and total BOM cost saving
considerations.
Ordering Information
RT9292
Package Type
J6 : TSOT-23-6
QW : WDFN-8L 2x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Feedback Reference Voltage
B : 104mV
D : 330mV
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z VIN Operating Range : 2.5V to 5.5V
z 28V Internal Power N-MOSFET Switch
z Wide Range PWM Dimming (200Hz to 200kHz)
z Minimize the External Component Counts
z Internal Soft Start
z Internal Compensation
z Under Voltage Protection
z Over Voltage Protection
z Over Temperature Protection
z Internal Schottky Diode
z Small TSOT-23-6 and 8-Lead WDFN Packages
z RoHS Compliant and Halogen Free
Applications
z Cellular Phones
z Digital Cameras
z PDAs and Smart Phones and MP3 and OLED.
z Portable Instruments
Pin Configurations
(TOP VIEW)
VIN VOUT EN
654
23
LX GND FB
TSOT-23-6
GND
VIN
VOUT
EN
1
2
3
4
8 LX
7 NC
9
6 FB
5 GND
WDFN-8L 2x2
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9292-02 April 2011
www.richtek.com
1


  Richtek Technology Electronic Components Datasheet  

RT9292 Datasheet

Asyn-Boost Converter

No Preview Available !

RT9292
Typical Application Circuit
L
22uH
Optional
CIN
2.2uF
Chip Enable
LX VOUT
VIN
RT9292
EN
GND
FB
RSET
COUT
0.22uF
6 WLEDs
Functional Pin Description
Pin No.
RT9292GJ6 RT9292GQW
Pin Name
Pin Function
1
8 LX
Switching Pin.
2
1, 5,
9 (Exposed pad)
GND
Ground Pin. The exposed pad must be soldered to a large
PCB and connected to GND for maximum power dissipation.
3
6 FB
Feed Back Pin, put a resistor to GND to set the current.
4
4 EN
Chip Enable (Active High).
5
3
VOUT
Output Voltage Pin.
6 2 VIN Input Supply.
--
7 NC
No Internal Connection, keep floating.
Function Block Diagram
VIN
LX
UVLO
OVP
OTP
PWM
+
Logic Control,
Minimum On
Time
OCP
Current-
Sense
Driver
VF = 0.7V
VOUT
EA
GM Slope
Compensation
GND
LPF
Enable
Logic
10ms
Shutdown
VREF
1uA
www.richtek.com
2
FB
EN
DS9292-02 April 2011


Part Number RT9292
Description Asyn-Boost Converter
Maker Richtek Technology
PDF Download

RT9292 Datasheet PDF






Similar Datasheet

1 RT9292 Asyn-Boost Converter
Richtek Technology
2 RT9293 Asynchronies Boost
Richtek Technology
3 RT9296 Synchronous Boost Converter
Richtek Technology
4 RT9297 3A High Performance Step-Up DC/DC Converter
Richtek Technology





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy