EV3371-R-00A

EV3371-R-00A

8-Channel, Synchronous Boost WLED Driver with I2C Interface

Datasheet

Description

The EV3371-R-00A is an evaluation board designed for the MP3371, a synchronous boost converter with eight current channels designed
to drive WLED arrays for LCD panels in tablets and notebook backlighting applications.

The MP3371 uses peak current mode and pulse-width modulation (PWM) control to regulate the boost converter. The MP3371 employs a standard I2C digital interface to set the operation mode, switching frequency, fullscale current for each channel, sync or nonsync mode, dimming mode and duty, and various protection thresholds.

The MP3371 features high efficiency due to low-headroom voltage for LED regulation and a small on resistance of the switching MOSFET. The synchronous rectifier saves PCB size and total BOM cost.

The MP3371 is available in a QFN-24 (4mmx4mm) package.

Product Evaluated

MP3371

8-Channel, Synchronous, 50V Boost WLED Driver with I2C Interface

Features & Benefits

8 Channels with Maximum 50mA/Channel
Synchronous Converter with 50V LS-FET/HS-FET with 155m/235mΩ On Resistance
3V to 30V Input Voltage Range
470mV LED Regulation Voltage at 20mA
Max 2.5% Current Matching
350kHz, 500kHz, 650kHz, 800kHz, 950kHz, or 1.2MHz Selectable Switching Frequency
A1 Pins for Two I2C Addresses
0mA to 50mA Full-Scale LED Current, 8-Bit, 0.196mA/Step
Selectable Sync or Non-Sync Mode
Multi-Dimming Operation Mode Including:
Analog Dimming through External PWM Input or I2C Interface, 10-Bit Resolution
PWM Dimming through External PWM Input or I2C Interface, 14-Bit Resolution
Mixed Dimming Mode through External PWM Input or I2C Interface with 6.25%, 12.5%, 25%, or 50% Transfer Point, 14- Bit PWM Duty Resolution
Linear Smooth Dimming with 2μs, 4μs, 8μs, 16μs, 32μs, 64μs, or 128μs Step-Slope Set
LED Short/Open, OTP, OCP, Inductor or Diode Short Protection
2.5V, 5V, 7.5V, or 10V LED Short Threshold
24V, 31V, 37.5V, or 45V OVP Threshold
1.8A or 2.5A Current Limit
Cascade Function to Share Power Stage
Available in a QFN-24 (4mmx4mm) Package

Active Part Numbers:

EV3371-R-00A

Buy direct from MPS

Standard Pricing

Quantity Price
1

$50.00 /unit

In stock

Arrives 3-4 business days. Shipping only $5 per order.

MPS I2C Communication kit required

Yes, Add EVKT-USBI2C-02 $50.00

No, I already have one

Quantity

100 Max per Company.
Limited Inventory to support product development.

EV3371-R-00A

Description

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Product Evaluated

Features & Benefits

Active Part Numbers:

Buy direct from MPS

Standard Pricing

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