MPQ7225-AEC1

16-Channel, Current Sink LED Driver, AEC-Q100 Qualified

Description

The MPQ7225 is a 16-channel, current sink LED driver, with a 200mA maximum current per channel. It provides an integrated differential interface, which is compatible with control area network (CAN) transceivers.

Adaptive feedback control (AFC) maximizes system efficiency. The pre-regulator output voltage (V_OUT) is self-adjusted so that the voltage across the channel remains at the minimum headroom voltage (0.3V).

The MPQ7225 is designed to work with a high-speed differential interface. It employs both a 12-bit pulse-width modulation (PWM) dimming register and a 6-bit analog dimming register for each LED channel. Frequency spread spectrum (FSS) optimizes the LED current ramp rate and EMC performance. It also features a configurable phase shift between channels.

The device provides the failsafe (/FS) pin for full diagnostics. Full protection features include LED open protection, LED short protection, and over-temperature protection (OTP). If a fault occurs and a protection is triggered, the /FS pin is pulled low and the fault register is set. The MPQ7225 is available in QFN-32 (5mmx6mm) package.

Features & Benefits

Easy Scalability:
- 16-Channel, 200mA Max Per Channel
- Channels Can Work in Parallel
- Cascade Up to 16 ICs to Support Up to 256 Channels
- Pin-Configurable Device Address
Designed for Automotive Applications:
- Supports 2.5V Cold Crank
- 40°C to 150°C Operating Junction Temperature (T_J) Range
Excellent System Efficiency for Improved Thermals:
- Adaptive Feedback Control (AFC) for Dynamic, Optimized Pre-Regulator Output
- 300mV Current Sink Headroom Voltage at 200mA
- Headroom Voltage Optimization for Multiple ICs
Robust Communication for Reliable Control Across Multiple PCBs:
- Differential Interface Compatible with 2Mbps Control Area Network (CAN) Transceivers
- 12-Bit Pulse-Width Modulation (PWM) Dimming for Each Channel
- 6-Bit Analog Dimming for Each Channel
Optimized for EMI/EMC Reduction:
- Configurable Phase Shift and Slew Rate
- Frequency Spread Spectrum (FSS) (Internal Clock)
- Selectable PWM Dimming Frequency
- CISPR25 Class 5 Compliant
Additional Features:
- Functional Safety-Capable: Documentation Available to Aid in ASIL System Design
- Failsafe (/FS) Pin and Fault Registers for System Protections and Diagnostics
- LED Short to Ground Protection
- LED Short to Battery Protection
- LED Open Protection
- Thermal Warning and Shutdown
- Open/Short Pin (ISET)
- One-Time Programmable (OTP) Memory
- Available in a QFN-32 (5mmx6mm) Package
- Available in a Wettable Flank Package
- Available in AEC-Q100 Grade 1