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Rohm Semiconductor Electronic Components Datasheet

BD6583MUV-A Datasheet

6-Channel White LED Driver

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BD6583MUV-A pdf
Datasheet
6-Channel White LED Driver
for up to 72 LEDs
BD6583MUV-A
General Description
BD6583MUV-A is white LED driver IC with PWM
step-up DC/DC converter that can boost max 42.5V
and current driver that can drive max 25mA. The wide
and precision brightness can be controlled by external
PWM pulse. BD6583MUV-A 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. Small package type is suited for saving
space.
Key Specifications
Operating power supply voltage range: 2.7V to 22.0V
LED Maximum Current:
25mA (Max.)
Quiescent Current 1:
0.6μA (Typ.)
Quiescent Current 2:
4.6μA (Typ.)
Operating temperature range:
-30 to +85
Package W(Typ.) x T(Typ.) x H(Max.)
Features
High efficiency PWM step-up DC/DC converter
(fsw=1MHz), max efficiency 93%
High accuracy & good matching (±3%) current
drivers 6ch
Drive up to 12* in series, 6 strings in parallel =72
white LEDs (*white LED Vf=3.5Vmax)
Rich safety functions
Over-voltage protection (OVP)
Over current limit
External SBD open detect
Thermal shutdown
VQFN024V4040
4.00mm x 4.00mm x 1.00mm
Figure 1. Package
Applications
All middle size LCD equipments backlight of Notebook
PC, portable DVD player, car navigation systems, etc.
Typical Application Circuit
Battery
10μF
4.7μH
2.2μF
RTR020N05
100m
Power
ON/OFF
200Hz
PWM
1μF
SW
SENSP
FAILSEL VDET
SENSN
RSTB BD6583MUV-A
PWMPOW
PWMDRV
VBAT
VREG
LED1
LED2
LED3
LED4
LED5
GNDGNDGNDGNDTEST ISETHISETLLED6
24k
10LED x 6parallel
Each 20mA
Figure 2F. iTgyuprieca2l.ATpyppliiccaaltiAopnpCliciractuioitn 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
1/32
TSZ02201-0G3G0C400180-1-2
03.Dec.2012 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BD6583MUV-A Datasheet

6-Channel White LED Driver

No Preview Available !

BD6583MUV-A pdf
BD6583MUV-A
Datasheet
Absolute Maximum Ratings (Ta=25 )
Parameter
Symbol
Terminal voltage 1
VMAX1
Terminal voltage 2
VMAX2
Ratings
7
25
Unit Condition
V
TEST,VREG,SENSP,SENSN,SW,RSTB,
PWMPOW,PWMDRV,FAILSEL,ISETH,ISETL
V LED1, LED2, LED3, LED4, LED5, LED6, VBAT
Terminal voltage 3
VMAX3
50.5
V
VDET
Power dissipation 1
Pd1 500 mW
*1
Power dissipation 2
Pd2 780 mW
*2
Power dissipation 3
Pd3
1510
mW
*3
Operating temperature range Topr
-30 to +85
-
Storage temperature range
Tstg
-55 to +150
-
(*1) Reduced 4.0mW/ With Ta>25 when not mounted on a heat radiation Board.
(*2) 1 layer (ROHM Standard board) has been mounted. Copper foil area 0mm2, When it’s used by more than Ta=25 , it’s reduced by 6.2mW/ .
(*3) 4 layer (JEDEC Compliant board) has been mounted.
Copper foil area 1layer 6.28mm2, Copper foil area 2 to 4layers 5655.04mm2, When it’s used by more than Ta=25 , it’s reduced by 12.1mW/ .
Recommended Operating Rating (Ta=-30 to +85 )
Parameter
Ratings
Symbol
Min. Typ. Max.
Power supply voltage
VBAT 2.7 12.0 22.0
Unit
V
Condition
Electrical Characteristics (Unless otherwise specified, VBAT=12V, RSTB=2.5V, Ta = +25
Parameter
Limits
Symbol
Unit
Min. Typ. Max.
[FAILSEL,PWMDRV Terminal]
Threshold voltage (Low)
VthL
0
- 0.2 V
)
Condition
Threshold voltage (High) 1
VthH1 1.4 - 5.0 V VBAT>5.0V
Threshold voltage (High) 2
VthH2 1.4
- VBAT V VBAT<5.0V
Terminal input current
[PWMPOW Terminal]
Iin - 8.3 14.0 µA Input=2.5V
Low input voltage range
PWML 0
- 0.2 V
High input voltage range1
PWMH1 1.4 - 5.0 V VBAT>5.0V
High input voltage range2
PWM pull down resistor
[RSTB Terminal]
Low input voltage range
PWMH2
PWMR
1.4
300
- VBAT V VBAT<5.0V
500 700 k
RSTBL 0
- 0.2 V
High input voltage range1
RSTBH1 2.25 2.5 5.0 V VBAT>5.0V
High input voltage range2
RSTBH2 2.25 2.5 VBAT V VBAT<5.0V
Current consumption
[Regulator]
VREG voltage
IRSTB
-
89 134 µA RSTB=2.5V, LED1-6=3V
VREG 4.0 5.0 6.0 V No load
Under voltage lock out
UVLO 2.05 2.25 2.65 V
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
2/32
TSZ02201-0G3G0C400180-1-2
03.Dec.2012 Rev.001


Part Number BD6583MUV-A
Description 6-Channel White LED Driver
Maker ROHM
Total Page 30 Pages
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BD6583MUV-A pdf
BD6583MUV-A Datasheet PDF
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