2

Atmel LED Drivers-MSL1061/MSL1064

General Description

MSL1061 and MSL1064 are

LED drivers with integrated

boost regulators capable of

driving six LED strings at

30mA up to 48V for lighting

applications to 8W, allowing

up to 72 LEDs per driver

backlighting applications.

The MSL1061/64 incorporates a current mode PWM boost regulator with

50V internal switch and a wide, 4.75V to 36V input voltage range. The

1.1MHz switching frequency uses a small-sized inductor and output capacitors

while maintaining high efficiency and low ripple voltage and noise. The boost

regulator uses digital control and requires no external compensation.

to internal 8-bit PWM dimming and 4-bit analog current adjustment for 12-

bit current control. Individual string enable and fault reporting are available.

slave address.

dimming with an external PWM signal.

Analog dimming of LED string current is available for use with an ambient

light sensor (ALS) and/or temperature management with a thermistor or IC

temperature sensor.

The MSL1064 comes in a 5 x 5mm, 24-pin TQFN package, and the MSL1061

in a 5 x5mm, 28-pin TQFN. Both packages are lead-free, halogen-free and

RoHS-compliant, and operate over a -40°C to 85°C temperature range.

Applications

Long Life, Efficient LED Backlighting for:

Traffic Lights

Signage

Ordering Information

PART

DESCRIPTION

PACKAGE

MSL1061AV

6-ch LED driver

28-pin, 5x5x0.75mm TQFN

MSL1064AW

6-ch LED driver

24-pin, 5x5x0.75mm TQFN

Atmel LED Drivers-MSL1061/MSL1064

6-string PWM LED Driver with Digitally Compensated, 1.1MHz,