LED6001 STMicroelectronics

LED6001 PWM-dimmable single channel LED driver with integrated boost controller Datasheet - production data Applications Indoor and architectural LED lighting Emergency LED lighting Off-grid LED street lighting White goods HTSSOP-16 Gaming/gambling machines Description Features The LED6001 device is a LED driver that Switching controller section combines a boost controller and a high-side current sensing circuitry optimized for driving one 5.5 V to 36 V input voltage range string of high-brightness LEDs. The device is Very low shutdown current: I < 10 A SHDN compatible with multiple topologies such as Internal +5 V LDO for gate driver supply boost, SEPIC and floating load buck-boost. The Internal +3.3 V LDO for device supply brightness of the LEDs can be controlled through Fixed frequency peak current mode control PWM dimming and analog dimming (10:1 ratio) Adjustable (100 kHz to 1 MHz) switching by means of two independent pins. Enhanced frequency PWM dimming can be obtained thanks to a MOSFET in series with the LED string and External synchronization for multi-device directly driven by a dedicated pin. applications High performance external MOSFET driver The high-side current sensing, in combination Cycle-by-cycle external MOSFET OCP with a P-channel MOSFET, provides an effective protection in case the positive terminal of the LED Fixed internal soft-start string is shorted to ground. The high precision Programmable output OVP current sensing circuitry allows a LED current Boost, buck-boost and SEPIC topologies regulation reference within 4% accuracy over supported the whole temperature range and production Thermal shutdown with autorestart spread. Output short-circuit detection A fault output (open-drain) informs the host LED control section system about faulty conditions: device Up to 60 V output voltage overtemperature, output overvoltage Constant current control loop (disconnected LED string) and LED overcurrent. High-side output current sensing circuitry Table 1. Device summary 30 to 300 mV differential sensing voltage Order code Package Packaging 4% output current reference accuracy Output overcurrent protection LED6001 Tube HTSSOP-16 Sensing resistor failure protection (exposed pad) LED6001TR Tape and reel PWM dimming with auxiliary series switch Analog dimming February 2020 DocID025575 Rev 4 1/26 This is information on a product in full production. www.st.comContents LED6001 Contents 1 Typical application circuit 3 2 Pin function 4 3 Block diagram 6 4 Absolute maximum ratings . 7 5 Recommended operating conditions . 8 6 Electrical characteristics . 9 7 Device description . 12 7.1 Device supply 12 7.2 Boost controller 12 7.2.1 Turn on and power-down sequences . 12 7.2.2 Boost controller operation . 13 7.2.3 Boost converter stability and slope compensation . 14 7.2.4 Switching frequency oscillator and external synchronization . 16 7.3 LED current regulation and brightness control . 17 7.4 Device protections 20 7.4.1 Linear regulators undervoltage lockout . 20 7.4.2 Power switch overcurrent . 20 7.4.3 Output overvoltage and OVFB pin disconnection . 20 7.4.4 Output rail disconnection detection or output short-circuit to ground . 21 7.4.5 Thermal shutdown . 22 8 Package information 23 9 Revision history . 25 2/26 DocID025575 Rev 4