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EV3372-R-00A

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8-Channel, Synchronous Boost WLED Driver with I²C Interface Evaluation Board

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$50.00 /unit

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Product Description

The EV3372-R-00A is an evaluation board for the MP3372, a synchronous boost converter with eight current channels. The IC is designed to drive WLED arrays for LCD panels in tablets and notebook backlighting applications.

The MP3372 uses peak current mode and pulse-width modulation (PWM) control to regulate the boost converter. The MP3372 employs a standard I²C digital interface to set the operation mode, switching frequency, full-scale current for each channel, sync or non-sync mode, dimming mode and duty, and various protection thresholds.

The low-headroom voltage for LED regulation and small on resistance of the switching MOSFET provide the MP3372 with high efficiency. The synchronous rectifier saves PCB size and total BOM cost.

The MP3372 is available in a QFN-24 (4mmx4mm) package.

Product Features

3V to 30V Input Voltage Range
Maximum 2.5% Current Matching
350kHz/500kHz/650kHz,/800kHz/950kHz/ 1.2MHz Selectable f_SW
A1 Pins for Two I²C Addresses
0mA to 50mA Full-Scale LED Current, 8 Bits, 0.196mA/Step
Selectable Sync or Non-Sync Mode
Multi-Dimming Operation Mode Includes:Analog Dimming via External PWM Input, 10-Bit Resolution
Analog Dimming via I²C, 10-Bit Resolution
PWM Dimming via External PWM Input, 14-Bit Resolution
PWM Dimming via I²C, 14-Bit Resolution
Mixed Dimming Mode via External PWM Input with 6.25%/12.5%/25%/50% Transfer Point, 14-Bit PWM Duty Resolution
Mixed Dimming Mode via I²C with 6.25%/12.5%/25%/50% Transfer Point, 14-Bit PWM Duty Resolution
Phase Shift Function during PWM Dimming (Including PWM Dimming during Mixed Dimming)
Linear Smooth Dimming with 2µs, 4µs, 8µs, 16µs, 32µs, 64µs, or 128µs Step-Slope Set
Unused LED String Auto-Disable at Start-Up
LED Short/Open Protection, OTP, OCP, Inductor or Diode Short Protection:
2.5V, 5V, 7.5V, 10V LED Short Threshold
24V, 31V, 37.5V, or 46V OVP Threshold
1.8 or 2.5A Current Limit
Cascade Function to Share Power Stage
Available in a QFN-24 (4mmx4mm) Package