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PDF SGM3128 Data sheet ( Hoja de datos )
| Número de pieza | SGM3128 | |
| Descripción | 3-Channel LowDropout Low Side White LED Driver | |
| Fabricantes | Shengbang Microelectronics | |
| Logotipo |  |
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SGM3128
3-Channel Low Dropout
Low Side White LED Driver
GENERAL DESCRIPTION
The SGM3128 driver provides a simple solution for a
matched current source for common Anode LED
configuration.
The SGM3128 can drive three LEDs or one LED at
three times the current. The factory preset current
value is 30mA per channel.
The SGM3128 requires only a 50mV dropout voltage at
a 30mA load on each output to match the LED
brightness.
The SGM3128 is available in Green SOT-23-6 package.
It operates over an ambient temperature range of -40℃ to
+85℃.
APPLICATIONS
Wireless Handsets
MP3, MP4, and PMP
Cellular Phones
Portable Communication Devices
Digital Cameras, Camcorders
PDAs, Palmtops, and Handy Terminals
LED/Display Back Light Driver
LEDs for Camera Flash
Battery-Powered Equipment
FEATURES
● Support up to 3 LEDs
● Low 50mV Dropout at 30mA
● Less than ±5% LED Current Matching
● Simple LED Brightness Control
● Low Shutdown Current
● 2.5V to 5.5V Supply Voltage Range
● Low EMI and Switching Noise
● Enable/Shutdown Control
● Operating Temperature Range: -40℃ to +85℃
● Available in Green SOT-23-6 Package
TYPICAL APPLICATION
VIN
CIN
0.1µF
LED1 LED2 LED3
VCC
SGM3128
PWM
EN
GND
SG Micro Corp
www.sg-micro.com
REV. A. 2
1 page  
SGM3128
3-Channel Low Dropout
Low Side White LED Driver
TYPICAL PERFORMANCE CHARACTERISTICS
SG Micro Corp
www.sg-micro.com
LED Current vs. Input Voltage
50
LED1
40
LED2
LED3
30
20
10
0
2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SGM3128.PDF ] | |
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