MSLB9061 datasheet(8/16 Pages) ATMEL

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Atmel LED Driver-MSLB9061

Single Input Voltage Configuration

The MSLB9061 board can be powered from a single

input voltage source. The configuration depends on the

input voltage range. The three available configurations

are:

• Input voltage between 5.5V and 28V. Apply the

input voltage to the PWR and HVBIAS inputs,

J2 pins 1, 2, and 3, simultaneously. Leave BIAS

and DOUBLE, J2 pins 4 and 5, unconnected. Full

power is available in this configuration with an

input voltage greater than 6.5V.

• Input voltage between 4.5V and 6V. Apply the

input voltage to the PWR, HVBIAS, and BIAS

inputs, J2 pins 1, 2, 3, and 4, simultaneously.

Leave DOUBLE, J2 pin 5, unconnected. Full

power is not available in this configuration.

• Input voltage between 3.1V and 3.6V. Apply the

input voltage to the PWR and DOUBLE inputs, J2

pins 1, 2, and 5. Connect the BIAS and HVBIAS

inputs, J2 pins 3 and 4, together, but do not

apply voltage. Full power is not available in this

configuration.

Separate Power and Bias Input Configuration

The MSLB9061 board can be powered from separate

power and bias input voltage sources. With input

bias voltage below the input power voltage, power

dissipation is reduced for improved power efficiency. In

all cases, apply the power input voltage to the PWR

inputs, J2 pins 1 and 2. Full output power is available for

an input voltage greater than 6.5V. The three available

bias configurations are:

• 5.5V to 28V bias input voltage. Connect the bias

voltage to the HVBIAS input, J2 pin 3. Leave

BIAS and DOUBLE inputs, J2 pins 4 and 5,

unconnected.

• 4.5V to 6V bias input voltage. Connect the bias

voltage to the HVBIAS and BIAS inputs, J2 pins 3

and 4, simultaneously. Leave DOUBLE, J2 pin 5,

unconnected.

• 3.1V to 3.6V bias input voltage. Connect the

bias voltage to DOUBLE, J2 pin 5. Connect

the HVBIAS and BIAS inputs, J2 pins 3 and 4,

together, but do not apply voltage.

I2C Serial Interface

The MSLB9061 driver board uses an I2C/SMBus serial

interface for digital LED control and fault detection.

Four slave ID addresses are available, and are selected

by the I2C address selection switch. The addresses are

shown in Table 4.

MSLB9061 Datasheet(PDF) 8 Page - ATMEL Corporation

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