RT9293 Datasheet PDF - Richtek Technology
Part Number | RT9293 | |
Description | Asynchronies Boost for 10 WLED Driver | |
Manufacturers | Richtek Technology | |
Logo | ||
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RT9293
Small Package, High Performance, Asynchronies Boost
for 10 WLED Driver
General Description
Features
The RT9293 is a high frequency, asynchronous boost
converter. The internal MOSFET can support up to 10
White LEDs for backlighting and OLED power application,
and the internal soft start function can reduce the inrush
current. The device operates with 1-MHz fixed switching
frequency to allow small external components and to
simplify possible EMI problems. For the protection, the
RT9293A provides 50V OVP and the RT9293B provides
50V/20V OVP to allow inexpensive and small-output
capacitors with lower voltage ratings. The LED current is
initially set with the external sense resistor RSET. The
RT9293 is available in the tiny package type TSOT-23-6
and WDFN-8L 2x2 packages to provide the best solution
for PCB space saving and total BOM cost.
Ordering Information
l VIN Operating Range : 2.5V to 5.5V
l Internal Power N-MOSFET Switch
l Wide Range for PWM Dimming (100Hz to200kHz)
l Minimize the External Component Counts
l Internal Soft Start
l Internal Compensation
l Under Voltage Protection
l Over Voltage Protection
l Over Temperature Protection
l Small TSOT-23-6 and 8-Lead WDFN Packages
l RoHS Compliant and Halogen Free
Applications
l Cellular Phones
l Digital Cameras
l PDAs and Smart Phones and MP3 and OLED.
RT9293 (- )
l Portable Instruments
Package Type
J6 : TSOT-23-6
QW : WDFN-8L 2x2 (W-Type)
Pin Configurations
Operating Temperature Range
(TOP VIEW)
G : Green (Halogen Free with Commer-
cial Standard)
VIN VOUT EN
OVP Voltage
Default : 50V (RT9293A/B)
20 : 20V (RT9293B)
654
23
Feedback Voltage Reference
A : 104mV
B : 300mV
LX GND FB
TSOT-23-6
Note :
Richtek Green 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.
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, otherwise visit our website for detail.
0755-83983280
1
|
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Typical Operating Characteristics
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. Output Current
VIN = 4.5V
VIN = 4V
VOUT = 10V
0.05 0.1 0.15 0.2 0.25 0.3
Output Current (A)
Output Voltage vs. Output Current
40
35
30
25
20
15
VIN = 3.7V, VOUT = 34V
10
5 15 25 35 45 55 65 75 85
Output Current (mA)
Frequency vs. Input Voltage
1100
1050
1000
950
900
850
ILED = 20mA
800
2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
RT9293
100
90
80
70
60
50
40
30
20
10
0
2.5
Efficiency vs. Input Voltage
ILOAD = 30mA
ILOAD = 10mA
ILOAD = 20mA
VOUT = 34V
3 3.5 4 4.5 5 5.5
Input Voltage (V)
Quiescent Current vs. Input Voltage
500
450
400
350
300
250
VFB = 1.5V
200
2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
Frequency vs. Temperature
1100
1050
1000
950
900
850
VIN = 3.7V, ILED = 20mA
800
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (°C)
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for RT9293 electronic component. |
Information | Total 13 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ RT9293.PDF Datasheet ] |
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Featured Datasheets
Part Number | Description | MFRS |
RT9292 | The function is Asyn-Boost Converter. Richtek Technology | |
RT9293 | The function is Asynchronies Boost for 10 WLED Driver. Richtek Technology | |
RT9296 | The function is Synchronous Boost Converter. Richtek Technology | |
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