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PDF SGM3135 Data sheet ( Hoja de datos )
| Número de pieza | SGM3135 | |
| Descripción | 3-Channel LowDropout Low Side White LED Driver | |
| Fabricantes | Shengbang Microelectronics | |
| Logotipo |  |
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SGM3135
3-Channel Low Dropout
Low Side White LED Driver
GENERAL DESCRIPTION
The SGM3135 driver provides a simple solution for a
matched current source for common Anode LED
configuration.
The SGM3135 can drive three LEDs or one LED at
three times the current. The factory preset current
value is 20mA per channel.
The SGM3135 requires only a 40mV dropout voltage at
a 20mA load on each output to match the LED
brightness.
The SGM3135 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 40mV Dropout at 20mA
● 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
SGM3135
PWM
EN
GND
SG Micro Corp
www.sg-micro.com
REV. A. 2
1 page  
SGM3135
3-Channel Low Dropout
Low Side White LED Driver
TYPICAL PERFORMANCE CHARACTERISTICS
LED Current vs. Input Voltage
30
LED1
25 LED2
LED3
20
15
10
5
0
2 2.5 3 3.5 4 4.5 5
Input Voltage (V)
5.5
Supply Current vs. Supply Voltage
250
200
150
100
50
0
1.5
2.5 3.5 4.5
Supply Voltage (V)
5.5
LED Current vs. Temperature
30
25
20
15
10
-40
-15 10 35
Temperature (℃)
60
85
Line Transient Response
VIN = 3.2V to 3.7V
VIN
1V
/div
25mA
ILED
0mA
Time (100µs/div)
SG Micro Corp
www.sg-micro.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SGM3135.PDF ] | |
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