Description

The LED6001 device is a LED driver that combines a boost controller and a high-side current sensing circuitry optimized for driving one string of high-brightness LEDs. The device is compatible with multiple topologies such as boost, SEPIC and floating load buck-boost. The brightness of the LEDs can be controlled through PWM dimming and analog dimming (10:1 ratio) by means of two independent pins. Enhanced PWM dimming can be obtained thanks to a MOSFET in series with the LED string and directly driven by a dedicated pin.

Features

• Switching controller section

– 5.5 V to 36 V input voltage range

– Very low shutdown current: ISHDN < 10 µA

– Internal +5 V LDO for gate driver supply

– Internal +3.3 V LDO for device supply

– Fixed frequency peak current mode control

– Adjustable (100 kHz to 1 MHz) switching frequency

– External synchronization for multi-device applications

– High performance external MOSFET driver

– Cycle-by-cycle external MOSFET OCP

– Fixed internal soft-start

– Programmable output OVP

– Boost, buck-boost and SEPIC topologies supported

– Thermal shutdown with autorestart

– Output short-circuit detection

• LED control section

– Up to 60 V output voltage

– Constant current control loop

– High-side output current sensing circuitry

– 30 to 300 mV differential sensing voltage

– ± 4 output current reference accuracy

– Output overcurrent protection

– Sensing resistor failure protection

– PWM dimming with auxiliary series switch

– Analog dimming

Applications

• Indoor and architectural LED lighting

• Emergency LED lighting

• Off-grid LED street lighting

• White goods

• Gaming/gambling machines