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PDF RP1365 Data sheet ( Hoja de datos )
| Número de pieza | RP1365 | |
| Descripción | 4 Channels 100mA x1/x1.5/x2 Charge Pump White LED Driver | |
| Fabricantes | RICHPOWER | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RP1365 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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Preliminary
RP1365
4 Channels 100mA x1/x1.5/x2 Charge Pump White LED Driver
General Description
The RP1365 is a 4 channel WLED driver with auto mode
selection of x1, x1.5 and x2 mode with low dropout voltage
in current sources. The RP1365 can power up to 4 white
LEDs with regulated constant current for uniform intensity.
Each channel (LED1 to LED4) can support up to 25mA.
The part maintains highest efficiency by utilizing x1/x1.5/
x2 fractional charge pump and low dropout current
regulators. For the brightness control, user can easily
use a PWM signal generated from GPIO to control the
brightness of WLEDs.
The RP1365 is available in a WQFN-16L 3x3 package.
Small 0.22uF capacitors can be used for fly capacitors. It
provides the best backlighting solution with high efficiency
and smallest board space for portable application.
Ordering Information
RP1365
Package Type
QW : WQFN-16L 3x3 (Option 1)
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.
Typical Application Circuit
CFLY1
0.22uF
CFLY2
0.22uF
VIN
2.8V to 5V
3
C1P
7 VIN
CIN
1uF
8 EN
PWM Dimming
5,6, Exposed pad (17) GND
24 1
C1N C2P C2N
RP1365
LED1 13
LED2 12
LED3 11
LED4 10
VOUT 14
COUT
1uF
Features
Efficiency Up to 93% Over Li-ion Battery Discharge
Typical 85% Average Efficiency Over Li-ion Battery
Discharge
Support Up to 4 White LEDs
Support Up to 25mA/Per Channel
Support Up to 100mA Output Current
PWM Brightness Control
60mV Typical Current Source Dropout
1% Typical LED Current Accuracy
0.7% Typical LED Current Matching
Automatic x1/x1.5/x2 Charge Pump Mode
Transition
Low Input Noise and EMI Charge Pump
5V Over Voltage Protection
Power On/Mode Transition In-rush Protection
1MHz Switching Frequency
0.4uA Low Shutdown Current
RoHS Compliant and Halogen Free
Applications
Camera Phone, Smart Phone
White LED Backlighting
Pin Configurations
(TOP VIEW)
16 15 14 13
C2N
C1N
C1P
C2P
1
2
3
4
GND
12 LED2
11 LED3
10 LED4
9 NC
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.
RP1365-00P July 2009
1
1 page  
Preliminary
RP1365
Typical Operating Characteristics
Efficiency vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
LED VF = 3.42V
0
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5
Input Voltage (V)
LED Current vs. Input Voltage
30
28.5
27
25.5
LED1
24 LED2
22.5 LED3
LED4
21
19.5
18
16.5
LED VF = 3.42V
15
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5
Input Voltage (V)
x1 Mode Quiescent Current vs. Input Voltage
1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
0.55
0.5
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5
Input Voltage (V)
Shutdown Current vs. Input Voltage
1.2
1
0.8
0.6
0.4
x2 Mode Quiescent Current vs. Input Voltage
4
3.75
3.5
3.25
3
2.75
2.5
2.25
2
1.75
1.5
1.25
1
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5
Input Voltage (V)
x1 Mode Inrush Current Response
VIN = 3.7V
EN
(5V/Div)
VOUT
(2V/Div)
C2P
(2V/Div)
0.2
0
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5
Input Voltage (V)
IIN
(200mA/Div)
Time (100us/Div)
RP1365-00P July 2009
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RP1365.PDF ] | |
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