MPQ2484U-AEC1

MPQ2484U-AEC1

75V, Multi-Topology (Buck, Boost, Buck-Boost) LED Controller, AEC-Q100 Qualified

Datasheet

Description

The MPQ2484U is a flexible, multi-topology, asynchronous controller for LED lights requiring high luminous output. The device supports buck, boost, and buck-boost configurations, which makes it suitable for a wide range of LED lighting applications.

The MPQ2484U features a wide 4.5V to 45V input voltage (V_IN) range and a maximum boost output voltage up to 75V. Peak current mode provides fast transient response and simplifies loop stabilization. The switching frequency (f_SW) can be set via the FSET pin, or it can be synchronized with a 100kHz to 2.2MHz external clock signal. The configurable frequency spread spectrum (FSS) function can periodically enable frequency dithering to improve EMI. The MPQ2484U provides switch-mode dimming by utilizing an external P-channel MOSFET. Without a P-channel MOSFET, two-step dimming or pulse-width modulation (PWM) dimming can be selected.

Robust fault protections include thermal shutdown, cycle-by-cycle peak current limiting, output over-voltage protection (OVP), output short-circuit protection (SCP), LED open protection, and LED short protection. A fault indicator outputs an active logic low signal if a fault occurs.

The MPQ2484U is available in a TSSOP-28EP package.

Features & Benefits

Built for Automotive Lighting
- Load Dump Up to 45V
- Cold Crank Down to 4.5V
- Maximum 75V Boost Output
- Two-Step Dimming via the H/L Pin
- Pulse-Width Modulation (PWM) Dimming via the PDIM Pin
- Integrated P-Channel MOSFET Driver for Switch Dimming
- Available in AEC-Q100 Grade 1
Multi-Topology
- Supports Buck, Boost, and Buck-Boost Topologies
Low-Noise EMI/EMC
- Frequency Spread Spectrum (FSS)
- Configurable or Synchronizable Switching Frequency (f_SW)
Robust Protection Suite
- Cycle-by-Cycle Current Limit
- Output Over-Voltage Protection (OVP)
- Open LED Protection
- LED String Anode/Cathode to Battery/Ground Short Protection
- One or Multiple LED Short Protection
- Over-Temperature Shutdown
- Fault Flag Output (/FLT)
Additional Features
- <5μA Shutdown Current
- <1mA Quiescent Current
- Configurable Current-Sense Reference via an External Resistor
- External Loop Compensation
- Available in a TSSOP-28EP Package

Active Part Numbers:

MPQ2484UGF-AEC1-Z MPQ2484UGF-AEC1-P

Meaning of P & Z

Related Products

EVQ2484-F-00A 75V, Multi-Topology LED Controller with Multiple Dimming Modes Evaluation Board, AEC-Q100 Qualified

The EVQ2484-F-00A is an evaluation board designed to demonstrate the capabilities of the MPQ2484-AEC1 and MPQ2484U-AEC1. The MPQ2484-AEC1 and MPQ2484U-AEC1 are flexible, multi-topology, asynchronous controllers for LED lights with a high brightness.

The MPQ2484-AEC1 uses gold bond wiring, and the MPQ2484U-AEC1 uses copper bond wiring. Both devices support buck, boost, and buck-boost configurations, which makes them well-suited for multi-purpose applications. Peak current control mode provides fast transient response and eases loop stabilization. The switching frequency (f_SW) can be set using the FSET pin, or it can be synchronized using a 100kHz to 2.2MHz external clock signal. The configurable frequency spread spectrum (FSS) function can periodically enable dither switching to reduce EMI.

The EVQ2484-F-00A is a fully assembled and tested LED controller evaluation board, and supports boost mode and buck-boost mode configuration. It features a wide 4.5V to 45V input voltage (V_IN) range, with a maximum boost voltage of up to 75V.

The MPQ2484-AEC1 and MPQ2484U-AEC1 are both available in a TSSOP-28EP package, and are available in AEC-Q100 Grade 1.

$50.00
+ tax