900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Rohm Semiconductor Electronic Components Datasheet

BD6142AMUV Datasheet

8-Channel White LED Driver

No Preview Available !

Datasheet
8-Channel White LED Driver
with Integrated FET for up to 80 LEDs
BD6142AMUV
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 30mA. 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.
Features
High accuracy & good matching current drivers 8ch
(MAX30mA/ch)
Integrated 50V power Nch MOSFET
Soft Start function
Drive up to 11 LEDs in series, 8 strings in parallel
Rich 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
Analog Brightness Control
Key Specifications
Operating power supply voltage range: 4.2V to 27.0V
LED maximum current:
30mA (Max.)
Quiescent Current:
1.6µA (Typ.)
Switching frequency:
1.25MHz(Typ.)
Operating temperature range:
-40to +85
Package W(Typ.) x D (Typ.) x H(Max.)
VQFN024V4040
4.00mm x 4.00mm x 1.00mm
VQFN024V4040
Figure 1. Package
Applications
All medium sized LCD equipments, Backlight of
Notebook PC, net book, monitor, light, Portable DVD
player, light source etc.
Typical Application Circuit (8 Parallel)
10µF
7V to27V
10µH
2.2µ F/50V
2.2µF
VOUT
10 serial x 8 parallel (80pcs)
2.1V to VIN
RESET
LX LX
ENAB LE
FAULT
VIN
VDC
OV P
PWM
PWM
fPW M=100Hz~25kHz
1k
22nF
GND
PG ND
CO MP
PGND
B D 61 42 AM U V
PGND GND TEST FSET ABC ISET
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
56k1nF
36k
Figure 2. Typical Application Circuit
2.2M
68k
20mA
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays
1/30
TSZ02201-0G3G0C400340-1-2
07.Nov.2016 Rev.002


Rohm Semiconductor Electronic Components Datasheet

BD6142AMUV Datasheet

8-Channel White LED Driver

No Preview Available !

BD6142AMUV
Datasheet
Absolute Maximum Ratings (Ta=25)
Parameter
Symbol
Ratings
Unit
Condition
Terminal voltage 1
Terminal voltage 2
VMAX1
VMAX2
7
45
V
VDC, ISET, ABC,
COMP, FSET, TEST, FAULT
V CH1 to CH8, LX, OVP
Terminal voltage 3
VMAX3
30.5
V VIN, ENABLE
Terminal voltage 4
Power dissipation 1
Power dissipation 2
Power dissipation 3
VMAX4
Pd1
Pd2
Pd3
15
500 *1
780 *2
1510 *3
V PWM
mW
mW
mW
Operating temperature range
Topr
-40 to +85
Storage temperature range Tstg -55 to+150
*1 Reduced 4.0mW/ With Ta>25when 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=-40to +85)
Parameter
Power supply voltage
Symbol
VIN
Min.
4.2
Limits
Typ.
12.0
Max.
27.0
Unit
V
Conditions
Electrical Characteristics (Unless otherwise specified, VIN=12V, Ta = +25)
Parameter
Limits
Symbol
Min. Typ. Max.
Unit
[General]
Quiescent Current
Iq - 1.6 4.4 µA
Current Consumption
Idd - 3.6 5.4 mA
Max. Output Voltage
MOV
-
- 41 V
Under Voltage Lock Out
[ENABLE Terminal]
Low Input Voltage range
UVLO 3.1 3.7 4.1
EnL 0.0 - 0.8
V
V
High Input Voltage range1
EnH 2.0 - VIN V
Pull down resistor
EnR 100 300 500 k
Output Current
[PWM Terminal]
Low Input Voltage range
ENIout
-
0
2 µA
PWML 0.0 - 0.8 V
High Input Voltage range2
PWMH 1.3
-
12.0
V
Pull down resistor
PWMR 100 300 500
k
Output Current
PWMIout - 0 2 µA
[FAULT]
Nch RON
[Regulator]
VDC Voltage
FFCR
-
-
3 k
VREG 4.2 5.0 6.0
V
Conditions
ENABLE=0V
OVP=0V,ISET=36k
VIN falling edge
ENABLE=3V
ENABLE=0V
PWM=3V
PWM=0V
ENABLE =PWM=3V, OVP=2V
No load, VIN > 6V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/30
TSZ02201-0G3G0C400340-1-2
07.Nov.2016 Rev.002


Part Number BD6142AMUV
Description 8-Channel White LED Driver
Maker ROHM
PDF Download

BD6142AMUV Datasheet PDF






Similar Datasheet

1 BD6142AMUV 8-Channel White LED Driver
ROHM





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy