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PDF BD9206EFV Data sheet ( Hoja de datos )
| Número de pieza | BD9206EFV | |
| Descripción | Simple Structure Constant Current Backlight Driver | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Simple Structure Constant Current
Backlight Driver for LCD panels
(Non-step type)
BD9206EFV
General Description
The BD9206EFV is an LED driver IC with a built-in
6-Ch high-accuracy constant-current driver (absolute
accuracy: ±4%). This LED driver is capable of lighting
a maximum of 36 white LEDs (6 series x 6 parallel).
The wide operating power supply voltage range of the
BD9206EFV (8V to 30V) makes it suitable to be used
in a wide range of applications (from backlights to LED
light sources of Scanners and PPC’s, etc.).
Moreover, the BD9206EFV controls the generation of
heat at the time of large current drive because of the
adoption of the high-heat-radiation package
(HTSSOP-B20).
Key Specifications
Operating Power Supply Voltage Range: 8V to 30V
Operating Current:
2.5mA (Typ)
Maximun LED Constant Current:
30mA (Max)
Operating Temperature Range:
-40°C to +85°C
Applications
For use in LED light source of PPC and Scanner etc.,
LED lighting fixture, and LCD backlight lights of
monitor and note PC etc.
Typical Application Circuit
Features
Capable of Driving a Maximum of 36 White LEDs of
6 Series x 6 Parallel
Value of Constant Current is Set by the VSET
Terminal
Low Current Consumption during Standby
PWM Dimming is Possible due to the Clock Input to
the EN Terminal
Built-in 5V Regulator
Package
W(Typ) x D(Typ) x H(Max)
HTSSOP-B20
6.50mm x 6.40mm x 1.00mm
Pin Pitch: 0.65mm
VCC 20
STBY
2
AGND
4
PREREG
100k
REF
EN
3
100k
5VREG
PREREG
TSD
VSET
18
RSET
5VREG
Driver
Current
Setting
6
5V
REG
1 VREG
UVLO
5VREG Current
Driver
6
LED1
ENH1
ISET1
5VREG
LED2～5
ISET2～5
4
Vo
・・・・
TEST 17
5VREG
ISET6
LED6
15
PGND1～2
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product has no designed protection against radioactive rays
1/17
TSZ02201-0F1F0C100070-1-2
09.Dec.2014 Rev.002
1 page  
BD9206EFV
Typical Performance Curves
(Unless specified, VCC=24V, Ta=25°C)
0.05
0.04
STBY=L
EN=L
0.03
0.02
0.01
0.00
0
4 8 12 16 20 24 28 32 36
Power SupVplCy CVo[lVta]ge: VCC [V]
Datasheet
3.0
2.5 STBY=H
EN=L
2.0
1.5
1.0
0.5
0.0
0
4 8 12 16 20 24 28 32 36
Power SupplyVVCoClta[gVe:] VCC [V]
Figure 2. Circuit Current vs Power Supply Voltage
(OFF Mode)
Figure 3. Circuit Current vs Power Supply Voltage
(Standby Mode)
5
STBY=H
4 EN=H
3
2
1
0
0 4 8 12 16 20 24 28 32 36
Power SupVplCyCVo[Vlta]ge: VCC [V]
Figure 4. Circuit Current vs Power Supply Voltage
(Operating Mode)
35
30
25
20
15
10
5
0
0 0.5 1 1.5 2 2.5 3
VSET Input VoVltSagEeT R[Va]nge: VSET [V]
3.5
Figure 5. LED Output Current vs
VSET Input Voltage Range
(VSET Constant electric
current Characteristics)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
5/17
TSZ02201-0F1F0C100070-1-2
09.Dec.2014 Rev.002
5 Page 
BD9206EFV
4. Recommended Application Board Circuit
CVCC
Datasheet
CVREG
Figure 14
(1) For this IC, at the time of LED lighting, the temperature of the package increases due to heat generation of the
constant current driver. Therefore, attach a heat sink at the back of the package to the GND with wide substrate
pattern.
(2) In addition, the heat sinking can be further improved by putting a thermal VIA within. It can also be done by connecting
the unconnected terminals, TEST terminals and unused terminals of LED1 to LED6 to GND.
5. Recommended External Components
When you use VCC=24V ILED=20mA
Variety
Symbol
Usage
Type
Resistance R1 to R6 For reducing IC thermal loss
MCR03Series15R0
Capacitor
CVCC
CVREG
For input bypass capacitor
GMR55DB31H106
For VREG phase compensation GMR188R71A105
Maker
ROHM
murata
murata
Value
Unit
15Ω
10uF
1uF
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
11/17
TSZ02201-0F1F0C100070-1-2
09.Dec.2014 Rev.002
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet BD9206EFV.PDF ] | |
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