UBA3070T-N1 LED backlight driver IC linear and digital integrated circuits electronic devices and integrated circuits
electronic integrated circuit
,digital integrated circuits
LED backlight driver IC
Features
■ Switch-mode buck controller that drives strings of LEDs up to 600 V power-efficiently
■ Controller with power-efficient boundary conduction mode of operation:
◆ No reverse recovery losses in freewheel diode
◆ Zero current switching for turn-on of switch
◆ Zero voltage or valley switching for turn-on of switch
◆ Minimal required inductance value and size
■ Direct Pulse Width Modulation (PWM) dimming available
■ Fast transient response through cycle-by-cycle current control, thereby:
◆ Preventing over or undershoots in the LED current
◆ Enabling efficient PWM dimming by quickly turning the converter on and off and thereby removing the need for extra dim switches and high-side drivers
General description
The UBA3070 driver IC is the first member of a first generation of power-efficient LED backlight driver ICs.
Highly efficient, flexible and reliable LED drivers can easily be designed using the UBA3070 control IC.
Limiting values
| Symbol | Parameter | Conditions | Min | Max | Unit |
| VCC | supply voltage | current limited | −0.4 | +20 | V |
| VPWM | voltage on pin PWM | −0.4 | +5 | V | |
| VMASK | voltage on pin MASK | current limited | −0.4 | - | V |
| VSENSE | voltage on pin SENSE | current limited | −0.4 | - | V |
| VDRAIN | voltage on pin DRAIN | −0.4 | +650 | V |
STOCK LIST
| 2MBI200N-120 | 3000 | FUJI | 15+ | MODULE |
| AT24C04C-PUM | 2300 | ATMEL | 15+ | DIP |
| DF04S | 800 | SEP | 15+ | SOP-4 |
| AD7876BN | 2450 | AD | 15+ | DIP |
| CD4073BE | 6175 | TI | 16+ | DIP |
| AD7847AN | 2450 | AD | 16+ | DIP |
| BC847B | 15000 | 15+ | SOT-23 | |
| AD7501JNZ | 2450 | AD | 16+ | DIP |
| AD8572ARZ | 2450 | AD | 15+ | SOP |
| HD74LS08P | 1520 | HIT | 15+ | DIP |
| AT24C256-10PU27 | 2300 | ATMEL | 16+ | DIP |
| IDT71V016SA10PHG | 1780 | IDT | 13+ | TSOP44 |
| AD8544ARZ | 2450 | AD | 16+ | SOP |
| IRFB4710PBF | 1500 | IR | 13+ | TO-220 |
| IDT7205L20TP | 1780 | IDT | 13+ | DIP |
| G3MC-201PL-VD-12V | 3460 | OMRON | 15+ | DIP |
| AME8510AEEVAFE29Z | 1600 | AME | 14+ | SOT-23 |
| IRFS31N20DTRL | 1500 | IR | 14+ | TO-252 |
| ADM1485ARZ | 2000 | AD | 13+ | SOP |
| FQA9N90C | 2200 | FAIRCHILD | 15+ | TO-3P |
| DS1233-10 | 6390 | DALLAS | 15+ | TO-92 |
| 74HC4094D | 7500 | 16+ | SOP | |
| A3955SB | 2230 | ALLEGRO | 15+ | DIP-16 |
| BC337-25 | 15000 | KEC/ON | 16+ | TO-92 |
| BC327-25 | 15000 | 15+ | TO-92 | |
| AS19-H1G | 1600 | E-CMOS | 13+ | QFP |
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