New products of 2008

New products of 2007

Products

Energy Saving!ECO Devices
Expand! Upgrade your set with a light-emitting display."LCD"Clearly visible LSI Series (LED Drivers for LCD Backlights)

ROHM's LCD backlight LED driver series

A complete lineup is offered, optimized for panels of all sizes

ROHM's LCD backlight LED driver series provide unprecedented clarity to LCDs. A number of circuits are integrated into a single chip, including a brightness adjustment block, high-performance constant current driver, and multiple protection circuits, increasing functionality while freeing up valuable board space. A complete lineup is offered, optimized for panels of all sizes.

Features of ROHM's LCD backlight LED driver LSIs

1.

Select the ideal LED driver based on the panel size, from small to large. A broad lineup is available in various LED lamp configurations.

2.

Inverter-less charge pump and high efficiency chopper systems are used to generate the voltage necessary for lighting LEDs. ROHM offers both step-up voltage types for LCD backlight applications.

3.

Multiple protection circuits for overvoltage, overcurrent, output short circuit, temperature, low voltage malfunction prevention, and Shottky barrier diode open protection significantly increase both the stability and reliability of the set.
BD1606MVV

Improved Luminescent Display Function

Improve LCDs with a backlight LED driver optimized for a variety of panel sizes, from small to large.
·Portable audio players ·Photo printers ·Parking ticket machines
·Portable game consoles ·Portable terminals ·Bidets
·Notebook PCs ·Car audio systems ·Mobile phones
·Electronic dictionaries ·Ticket vending machines ·PDAs
·Electronic rice cookers ·Clocks ·LCD TVs
·Amusement equipment ·Air conditioners ·Microwave ovens
·Copiers ·Digital still cameras ·Cash registers
·Massage chairs ·Car navigation systems ·Automotive instrument panels
·Remote controls ·LCD monitors ·Blood pressure monitors
·Digital video cameras ·Fax machines ·Hot water controllers
·Portable DVD players ·Portable GPS devices etc.
·Cordless telephones ·Portable navigation systems

Constant current driver (non-step-up type) for LCD backlight

 Constant current driver (non-step-up type) for LCD backlight
Simple constant current drive structure

Part No.
Power Supply Voltage
(V)
LEDs
(Parallel Connection)
Constant Current Driver
Control Interface
Package
Maximum Current Setting form
 Maximum Current LED Current Matching Brightness Control
NEW
BD1754HFN
2.7 to 5.5
1 to 4
Changing resistor of ISET Pin
32mA When ISET resistor=120kΩ
 Maximum
3%
(When LED Pin voltage=IV)
 Built-in 64step current DAC UPIC HSON8

Backlight LED drivers (charge pump type) for small LCD panels

 Backlight LED drivers (charge pump type) for small LCD panels
Standard series for driving white LEDs connected in parallel

Part No.
Power Supply Voltage
(V)
LEDs
(Parallel Connection)
Charge Pump Step-up System
Brightness
Control
Control Interface
Package
Output Voltage
(V)
 Output Current(mA) Pump Frequency
BD1604MVV
2.7 to 5.5
1 to 4
Maximum 5
120
 1.0MHz Control by PWM signal of EN
resistance switching of ISET pin		 Pin logic setting SQFN016V4040
BD1604MUV
 VQFN016V3030
BD1603NUV
 2.7 to 5.5
1 to 10
4.5/5.0
fixed
200
(4.5V output)
160
(5.0V output)
642kHz
238kHz
Control by PWM signal of EN/
Qualification resistance is changed with an external switch
 Pin logic setting VSON010V3030
BH6941KN
 2.8 to 4.5 2 to 4 4.5
fixed		 80 1.2MHz Built-in 4step (1/10/15/20mA)current DAC Pin logic setting VQFN20
BH6942KN
 2.8 to 4.5 2/3/5 4.5
fixed		 75 1.2MHz Built-in 4step (1/10/15/20mA)current DAC Pin logic setting VQFN20
BH6943KN
 2.8 to 4.5 2/4/6 4.5
fixed		 90 1.2MHz Built-in 4step (1/10/15/20mA)current DAC Pin logic setting VQFN20
BD1601MUV 2.7 to 5.5 4 Maximum
5		 120 1.0MHz Built-in 64step (0.5 to 30mA)current DAC UPIC VQFN016V3030
BD1606MVV 2.7 to 5.5 1 to 6 Maximum 5 120 250kHz
1.0MHz		 Built-in 64step (0.5 to 32mA)current DAC I2C BUS SQFN016V4040

Multifunction backlight LED drivers (charge pump type) for small LCD panels

 Multifunction backlight LED drivers (charge pump type) for small LCD panels
Additional functions included for LCD power sources, decorative LED drivers, and more

Part No.
Power Supply Voltage
(V)
Charge Pump Step-up System
LEDs for
Backlight
/Flash
Addiction Function
Control Interface
Package
Output Voltage
(V)
 Output Current(mA) Pump
Frequency
LDO
Illmination
LED
Driver
GPIO
NEW
BD6081GVW
2.7 to 5.5
Maximum
5.5
255
 1.0MHz 6LED Maximum 32mA 32step
2ch
(2.8V
/1.8V)
 6LED Maximum 31.5mA 64step Built-in illumination lighting function - I2C BUS SBGA063
W060
NEW
BD6081GU
 VCSP
85H3
BH6056GU
 3.1 to 4.8 Through
/4.75		 160 1.2MHz 8LED Maximum 20mA 10step - - 3port (LED direct lighting is possible)
(Output port only)		 I2C BUS VCSP
85H3
BH6054GU
 3.1 to 4.8 Through
/4.75		 160 1.2MHz 8LED Maximum 20mA 10step 5ch
(2.9V×4,
2.6V×1)		 - 10port
(Output port only)		 I2C BUS VCSP
85H4
BH6069GU
 3.15 to 4.5 4.75
/5.3Fixed		 330 600kHz
/1.2MHZ		 7LED Maximum 30mA 30step 4LED Maximum 60mA 30step 2ch
(2.8V
/1.8V)		 4LED Maximum 20mA 20step Built-in illumination lighting function 7port
 SPI VCSP
85H5

White backlight LED drivers (chopper type) for small to mid-sized LCD panels

 White backlight LED drivers (chopper type) for small to mid-sized LCD panels
Standard series for driving white LEDs connected in series

Part No.
Power Supply Voltage
(V)
Rectifier
System
LEDs
(Series Connection)
 Output Voltage
(V)		 Output
Current
(mA)		 Switching
Frequency
(MHz)
Brightness Control
Package
BD6067GU
3.1 to 5.5
SBD external
5 to 8
 Maximum
30		 30
(30V output)		 1.0 Control by PWM signal of EN pin Control by analog voltage of VDAC pin VCSP85H1
BD6068GUT
3.1 to 5.5
Synchronous Rectification
3
 Maximum
14		 35
(10V output)		 1.0 Control by PWM signal of EN pin VCSP60N1
BD6071HFN
3.1 to 5.5
Synchronous Rectification
3
 Maximum
14		 35
(10V output)		 1.0 Control by PWM signal of EN pin HSON8
BD6069GUT
3.1 to 5.5
Synchronous Rectification
3/4
 Maximum
18		 35
(14V output)		 1.0 Control by PWM signal of EN pin VCSP60N1
BD6072HFN
3.1 to 5.5
Synchronous Rectification
3/4
 Maximum
18		 35
(14V output)		 1.0 Control by PWM signal of EN pin HSON8

White backlight LED drivers (chopper type) for small to mid-sized LCD panels

 White backlight LED drivers (chopper type) for small to mid-sized LCD panels
Can be used in combination for large LCD panels

Part No.
Power Supply Voltage
(V)
LEDs
 Output Voltage
(V)		 Output Current
(mA)		 Switching frequency
(MHz)
Brightness Control
Control

Interface
Package
NEW
BD6066GU
3.1 to 22
Maximum 48
12serial × 4line)
Maximum 40.5
30
(each line)
 1.0 Control by PWM signal of PWM pin/Resistor switching of ISET pin Pin logic setting VCSP85H2
NEW
BD6066EKN
 HQFN28V
NEW BD6583MUV
3.1 to 22
Maximum 72
12serial × 6line)
Maximum
43.0
25
(each line)
 1.0 Control by PWMPOW/PWMDRV signal of PWM pin/Resistor switching of ISET pin Pin logic setting VQFN024V4040

Please do not hesitate to contact us you need further information about the LCD Backlight LED Driver LSI.

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