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PDF BD65D00MUV Data sheet ( Hoja de datos )

Número de pieza BD65D00MUV
Descripción 4-Channel White LED Driver
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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Datasheet
4-Channel White LED Driver
with Integrated FET for up to 40 LEDs
BD65D00MUV
General Description
This IC is white LED driver IC with PWM step-up
DC/DC converter that can boost max 41V and current
driver that can drive max 100mA. The wide and
precision brightness can be controlled by external
PWM pulse. This IC has very accurate current drivers,
and it has few current errors between each strings. So,
it will be helpful to reduce brightness spots on the LCD
panel. Small package is suited for saving space.
It can respond to the application according to the
application to be abele to switch to external/internal
NchFET boosting.
PWM dimming(100Hz - 25kHz)Analog
Brightness Control
Key Specifications
Operating power supply voltage range: 6V to 27V
LED maximum current:
100mA/ch
Quiescent Current:
1.6μA (typ.)
Operating temperature range:
-40 to +85
Package
W(typ.) x D(typ.) x H(Max.)
Features
High efficiency PWM step-up DC/DC converter
(fsw=typ 1.25MHz, 0.60MHz to 1.6MHz)
High accuracy & good matching current drivers
4ch (MAX100mA/ch)
Integrated 50V power Nch MOSFET
Soft Start function
Drive up to 10 LEDs in series,
4 strings in parallel
Various safety functions
Over-voltage protection
External SBD open detect / Output
Short protection
Over current limit
CH Terminal open / GND short protect
CH over voltage protect / LED short protect
Thermal shutdown
UVLO
ISET short protection
Typical Application Circuit (4 parallel)
6V to 27V
VQFN028V5050
5.00mm x 5.00mm x 1.00mm
Figure 1.
Applications
All LCD equipments, Backlight of Notebook PC,
Amusement, net book, monitor, TV, Portable DVD
player, light source etc.
Figure 2. Typical Application Circuit
Product structure Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product is not designed protection against radioactive rays
1/36
TSZ02201-0G3G0C400220-1-2
7.Dec.2012 Rev.001

1 page




BD65D00MUV pdf
BD65D00MUV
Typical Performance Curves
Datasheet
Figure 5. Quiescent Current
Figure 6. Current Consumption
Figure 7. VDC Voltage
Figure 8. Under Voltage Lock Out
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
5/36
TSZ02201-0G3G0C400220-1-2
7.Dec.2012 Rev.001

5 Page





BD65D00MUV arduino
BD65D00MUV
Datasheet
Application Example
Figure 27, Figure 28 and Figure 29 are Application examples. Recommended schematics and Layout are shown in page 29,
31.
12V to 27V(VINL)
10µF
10µH
2.2µF/50V
2.2µF
10 serial x 4 parallel (40pcs)
VOUT
LX LX
PREOUT
10
TRIN
VIN
FAULT
VDC
OVP
2.1V to VIN
RESET
SENSP
ENABLE
PWM
PWM
fPWM=100Hz~25kHz
COMP
BD65D00MUV
CH1
CH2
CH3
CH4
1k
22nF
PGND
PGND GND TEST FSET ABC ISET
56k1nF
39k
GND
PGND
2.2M
68k
60mA
Figure 27. BD65D00 Application example (4 parallel)
9V to 27V(VINL)
10µF
10µH
2.2µF/50V
2.2µF
10 serial x 3 parallel (30pcs)
VOUT
LX LX
PREOUT
10
TRIN
VIN
FAULT
VDC
OVP
2.1V to VIN
RESET
SENSP
ENABLE
PWM
PWM
fPWM=100Hz~25kHz
COMP
BD65D00MUV
CH1
CH2
CH3
CH4
1k
22nF
PGND
PGND GND TEST FSET ABC ISET
56k1nF
39k
GND
PGND
2.2M
68k
60mA
Figure 28. BD65D00 Application example (3 parallel)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
11/36
TSZ02201-0G3G0C400220-1-2
7.Dec.2012 Rev.001

11 Page







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