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PDF SGM3132 Data sheet ( Hoja de datos )
| Número de pieza | SGM3132 | |
| Descripción | 4-Channel 1-Wire Dimming LED Driver | |
| Fabricantes | Shengbang Microelectronics | |
| Logotipo |  |
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SGM3132
4-Channel 1-Wire Dimming LED Driver
with Ultra Low Dropout Current Source
GENERAL DESCRIPTION
FEATURES
The SGM3132 is a 4-channel ultra low dropout
constant source parallel LED driver. The SGM3132
uses an internal resistor to set the bias current for four
LEDs.
The SGM3132 incorporates a single wire interface to
program the output current at 16 continuous steps. It
has an internal deglitch circuit for filtering the noise of
the EN input.
The SGM3132 requires only a 35mV dropout voltage at
a 20mA load. The feature makes SGM3132 ideal for
battery-operated systems, such as personal digital
assistants.
● Ultra Low Dropout: 35mV/20mA
● Support up to 4 LEDs
● LED Sink Current 20mA
● ±3% LED Current Matching
● Deglitch Circuit
● Thermal Shutdown Protection
● 16-Step Brightness Control
● No EMI and Switch Noise
● Operating Temperature Range: -40℃ to +85℃
● Available in Green TQFN-3×3-16L, TDFN-2×2-8L
and MSOP-8 Packages
TYPICAL APPLICATION
The SGM3132 is available in Green TQFN-3×3-16L,
TDFN-2×2-8L and MSOP-8 packages and is specified
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
Battery-Powered Equipment
2.5V to 5.0V
1µF
PGND
VIN
Pulse Inpput
12
n=16
SGM3132
LED1
EN LED2
LED3
AGND LED4
SG Micro Corp
www.sg-micro.com
REV. A. 2
1 page  
SGM3132
4-Channel 1-Wire Dimming LED Driver
with Ultra Low Dropout Current Source
TYPICAL PERFORMANCE CHARACTERISTICS
LED Current vs. Input Voltage
30
LED1
25 LED2
LED3
20 LED4
15
10
5
0
2 2.5 3 3.5 4 4.5 5
Input Voltage (V)
5.5
25
23
21
19
17
15
-40
LED Current vs. Temperature
-15 10 35
Temperature (℃)
60
85
LED Current vs. LED Dropout Voltage
25
20
15
10
5
0
0 0.4 0.8 1.2 1.6 2
LED Dropout Voltage (V)
Quiescent Current vs. Temperature
0.6
0.58
0.56
0.54
0.52
0.5
-40
-15 10 35
Temperature (℃)
60
85
Line Transient Response
VEN = 3.6V
VIN = 3.2V to 3.7V
VIN
1V
/div
ILED 25mA
0mA
Time (100μs/div)
SG Micro Corp
www.sg-micro.com
5
5 Page 
SGM3132
CARTON BOX DIMENSIONS
4-Channel 1-Wire Dimming LED Driver
with Ultra Low Dropout Current Source
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Reel Type
7″ (Option)
7″
13″
Length
(mm)
368
442
386
Width
(mm)
227
410
280
Height
(mm)
224
224
370
Pizza/Carton
8
18
5
SG Micro Corp
www.sg-micro.com
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet SGM3132.PDF ] | |
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