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PDF BL8582 Data sheet ( Hoja de datos )
| Número de pieza | BL8582 | |
| Descripción | 3-Channels WLED Linear Drive | |
| Fabricantes | BELLING | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BL8582 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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BL8582
Single-Wire Dimming, 3-Channels WLED Linear Drive
DESCRIPTION
The BL8582 is a CMOS based White/Blue
LED driver with stand-alone capability. The
driver is primarily designed for LED
backlighting of LCD display powered by Li-ion
battery With its high efficiency, low standby
current and wide range of input supply
voltage, the BL8582 is suitable for
applications such as portable device display
and keypad backlighting. It can realize
dimming control through EN pin. Inner the
device, there is a 4-bit counter, so the LED
current can be set at 16 levels with 1/15 Imax
step. BL8582 has three LED channels with a
SOT-23-6 package.
FEATURES
• 2.7 to 5.5V input range
• Single-wire dimming control with linear
16-steps.
• PWM dimming control
• LED sink current of max. 20mA
• Independent current sink circuit for each
LED output
• Low standby current
• High accuracy current match on each
channel
APPLICATIONS
• Small Size Color LCD Backlights Driver
• Mobile Phone, Portable DeviEN Keypad
Backlights Driver
TYPICAL APPLICATION
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1
1 page  
BL8582
TYPICAL PERFORMANEN CHARACTERISTICS
Quiescent Current vs Supply Current
(Ta=25℃)
350
300
250
200
150
100
50
0
3.0
3.5 4.0 4.5
Supply Voltage (V)
5.0
Quiescent Current vs Temperature
(VCC=3.7V)
450
400
350
300
250
200
150
100
50
0
-40 -20
0
20 40 60 80 100 120 140
Temperature (℃)
ILED vs Supply Voltage
(VCC=3.7V, VLEDn=3.2V)
22
20
18
16
14
12
10
3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
Supply Voltage (V)
ILED vs LEDn Dropout Voltage
(VCC=3.7V)
25
20
15
10
5
0
0.01
0.1 1
LEDn Dropout Voltage (V)
10
ILED vs Temperature
(VCC=3.7V)
20.2
20.2
20.1
20.1
20.0
20.0
19.9
19.9
19.8
19.8
19.7
-50
-25
0 25 50 75 100 125
Temperature (℃)
LED Current VS Code_No
20
16
12
8
4
0
0 2 4 6 8 10 12 14 16
Code_No
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5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet BL8582.PDF ] | |
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