|
|
PDF SGM3133 Data sheet ( Hoja de datos )
| Número de pieza | SGM3133 | |
| Descripción | 4-Channel Charge Pump White LED Driver | |
| Fabricantes | Shengbang Microelectronics | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SGM3133 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
SGM3133
4-Channel Charge Pump White LED
Driver with Low Dropout Current Source
GENERAL DESCRIPTION
The SGM3133 is a high efficiency and cost effective
charge pump white LED driver. It supports up to 4 white
LEDs and regulates a constant current for uniform
intensity. The part maintains the high efficiency by
utilizing a 1×/1.5× fractional charge pump and low
dropout current sources. The small equivalent 1× mode
open loop resistance and ultra-low dropout voltage of
current source extend the operating time of 1× mode
and optimize the efficiency of Li-ion battery in white
LED applications.
User can easily configure each LED current from
1.25mA to 20mA by a pulse dimming control. The
dimming of white LEDs current can be achieved by
applying a pulse signal to the EN/SET pin. There are
totally 16 steps of current could be set by users. The
operating voltage range is 2.7V to 5.5V. Internal
soft-start circuitry effectively reduces the in-rush
current while both start-up and mode transition.
The SGM3133 is available in Green TQFN-3×3-16L
package and is specified over an ambient temperature
range of -40℃ to +85℃.
FEATURES
● Input Voltage Range: 2.7V to 5.5V
● Drives up to 4 LEDs at 20mA Each
● 16-Step Brightness Control
● High Efficiency by Fractional Conversion with
1× and 1.5× Modes
● Automatic Charge Pump Mode Selection
● Switching Frequency: 1MHz
● 1% Typical LED Current Matching
● Internal Soft-Start Limits Inrush Current
● Low Input Noise and Low EMI
● Over Current and Over Temperature Protection
● Output Over Voltage Protection
● Under-Voltage Lockout with Hysteresis
● Available in Green TQFN-3×3-16L Package
APPLICATIONS
Mobile Phone, DSC, MP3
White LED Backlighting
LCD Display Supply
SG Micro Corp
www.sg-micro.com
REV. A. 2
1 page  
SGM3133
4-Channel Charge Pump White LED Driver
with Low Dropout Current Source
TYPICAL PERFORMANCE CHARACTERISTICS
CIN = COUT = C1 = C2 = 1μF, TA = +25℃, unless otherwise noted.
SG Micro Corp
www.sg-micro.com
5
5 Page 
SGM3133
4-Channel Charge Pump White LED Driver
with Low Dropout Current Source
PACKAGE OUTLINE DIMENSIONS
TQFN-3×3-16L
D e N16
L N1
D1
E E1
TOP VIEW
k
N5
b
BOTTOM VIEW
1.7
0.7
A
SIDE VIEW
A1
A2
3.6 2.2 1.7
0.5 0.24
RECOMMENDED LAND PATTERN (Unit: mm)
Symbol
A
A1
A2
D
D1
E
E1
k
b
e
L
Dimensions
In Millimeters
MIN MAX
0.700
0.800
0.000
0.050
0.203 REF
2.900
3.100
1.600
1.800
2.900
3.100
1.600
1.800
0.200 MIN
0.180
0.300
0.500 TYP
0.300
0.500
Dimensions
In Inches
MIN MAX
0.028
0.031
0.000
0.002
0.008 REF
0.114
0.122
0.063
0.071
0.114
0.122
0.063
0.071
0.008 MIN
0.007
0.012
0.020 TYP
0.012
0.020
SG Micro Corp
www.sg-micro.com
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SGM3133.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SGM3131 | 120mA 4-Channel Charge Pump White LED Driver | Shengbang Microelectronics |
| SGM3132 | 4-Channel 1-Wire Dimming LED Driver | Shengbang Microelectronics |
| SGM3133 | 4-Channel Charge Pump White LED Driver | Shengbang Microelectronics |
| SGM3135 | 3-Channel LowDropout Low Side White LED Driver | Shengbang Microelectronics |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |