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PDF BL8580 Data sheet ( Hoja de datos )
| Número de pieza | BL8580 | |
| Descripción | WLED Linear Driver | |
| Fabricantes | BELLING | |
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Hay una vista previa y un enlace de descarga de BL8580 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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BL8580/1
WLED Linear Driver For Li-Ion Battery Application
DESCRIPTION
The BL8580/1 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 BL8580/1 is suitable for
applications such as portable device display
and keypad backlighting.
In portable application, three or four-channel
LED solutions are popular. BL8580 has three
LED channels with a SOT-23-6 package.
BL8581 has four LED channels with a MSOP-
8 package.
FEATURES
No external component required
PWM dimming control available
Low noise and EMI
LED sink current of 20mA
Independent current sink circuit for each
LED output
Versatile supply voltage range
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
BL8581
1 page  
BL8580/1
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 (℃)
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5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet BL8580.PDF ] | |
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