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PDF RP1366 Data sheet ( Hoja de datos )
| Número de pieza | RP1366 | |
| Descripción | 120mA 6-Channel Charge Pump White LED Driver | |
| Fabricantes | RICHPOWER | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RP1366 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Preliminary
RP1366
120mA 6-Channel Charge Pump White LED Driver with Low
Dropout Current Source
General Description
Features
The RP1366 is a high performance white LED driver. It
integrates a current sources and automatic mode
selection charge pump. The part maintains the high
efficiency by utilizing an x1/x1.5 fractional charge pump
and low dropout current sources. The small equivalent x1
mode open loop resistance and ultra-low dropout voltage
of current source extend the operating time of x1 mode
and optimize the efficiency of Li-ion battery in white LED
applications.
The RP1366 supports up to 6 white LEDs and regulates a
constant current for uniform intensity. The part implements
a 4-bit DAC for brightness control. Users can easily
configure the LED current from 1.25mA to 20mA by a serial
pulse. The dimming of white LEDs current can be achieved
by applying a pulse signal to the EN pin. There are totally
16 steps of current could be set by users. The operating
voltage range is 2.8V to 5V. Internal soft start circuitry
effectively reduces the in-rush current while both start-up
and mode transition. The load is disconnected from VIN
while shutdown and the shutdown current is less than
1uA.
85% Average Efficiency Over Battery Life
Support up to 6 White LEDs
80mV Typical Current Source Dropout
Support up to 120mA Output Current
1% Typical LED Current Accuracy
0.7% Typical LED Current Matching
Soft Start Function
Auto Charge Pump Mode Selection
1MHz Fixed Frequency Oscillator
Output Over Voltage Protection
16-Step Brightness Control
Low Input Noise and EMI
Low 0.3uA Shutdown Current
RoHS Compliant and Halogen Free
Applications
Mobile Phone, DSC, MP3
White LED Backlighting
LCD Display Supply
Pin Configurations
The RP1366 is available in a WQFN 3x3-16L package.
Ordering Information
RP1366
Package Type
QW : WQFN-16L 3x3 (W-Type)
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
Note :
Richpower 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.
(TOP VIEW)
16 15 14 13
C1N 1
C2N 2
C2P 3
C1P 4
GND
17
12 LED3
11 LED4
10 LED5
9 LED6
5678
WQFN-16L 3x3
Marking Information
For marking information, contact our sales representative
directly or through a Richpower distributor located in your
area, otherwise visit our website for detail.
RP1366-00P July 2009
1
1 page  
Preliminary
RP1366
Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2. Devices are ESD sensitive. Handling precaution is highly recommended.
Note 3. The device is not guaranteed to function outside its operating conditions.
Note 4. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
RP1366-00P July 2009
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RP1366.PDF ] | |
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