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PDF RT8565 Data sheet ( Hoja de datos )
| Número de pieza | RT8565 | |
| Descripción | 6 WLEDs Driver | |
| Fabricantes | Richtek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT8565 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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RT8565
Small Package, High Performance, Diode Embedded,
Asynchronous Boost, 6 WLEDs Driver
General Description
The RT8565 is a high efficiency LED driver IC capable of
driving 6 LEDs. The RT8565 integrates 26V/0.9A power
switch with an internal Schottky diode.
The RT8565 is a current mode boost converter which is
fixed at 600kHz operating frequency and has a wide input
voltage range from 2.8V to 4.5V.
The LED current is set with an external resistor and the
feedback voltage is regulated to 200mV. During operation,
an internal 6-bit DAC is used for brightness control. Users
can easily configure up to 64 steps of LED current via the
EN pin.
During brightness dimming, the RT8565 does not burst
the LED current. Therefore, no audible noises are
generated on the output capacitor. The RT8565 also has
internal over voltage protection setting to prevent the output
from exceeding the absolute maximum ratings during open
LED conditions.
The RT8565 is available in a small WQFN-8L 1.6x1.6
package.
Ordering Information
RT8565
Package Type
QW : WQFN-8L 1.6x1.6 (COL) (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
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 Internal Schottky Diode
z Internal Soft-Start and Compensation
z 200mV Reference Voltage
z 64-Step Pulse Dimming
z Open LED Protection
z Internally Set Over Voltage Protection
z Over Temperature Protedtion
z Current Limit Protection
z RoHS Compliant and Halogen Free
Applications
z GPS, Portable DVD Backlight
z Mobile Phone, Smart Phone
Pin Configurations
(TOP VIEW)
8
FB 1
7 VIN
VOUT 2
6 EN
GND 3
5 LX
4
WQFN-8L 1.6x1.6 (COL)
Marking Information
C0W
C0 : Product Code
W : Date Code
DS8565-01 April 2011
www.richtek.com
1
1 page  
RT8565
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. θJA is measured in the natural convection at TA = 25°C on a high effective thermal conductivity four-layer test board of
JEDEC 51-7 thermal measurement standard.
Note 3. The device is not guaranteed to function outside its operating conditions.
DS8565-01 April 2011
www.richtek.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet RT8565.PDF ] | |
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