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EV3385-R-00A 4.5-33V String WLED Controller With I2C Interface Evaluation Board QFN-20
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pMPS EV3385-R-00A — String WLED Controller With I2C Interface Evaluation Board, 4.5-33V input, QFN-20./p
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EV3385-R-00A 4.5-33V String WLED Controller With I2C Interface Evaluation Board QFN-20
The MPS EV3385-R-00A is an evaluation board built around the MP3385 for bench characterisation of the device in its intended topology. It operates from a 4.5 V to 33 V input. The board carries the device in its QFN-20 package.
The MP3385 is a step-up controller with 4 regulated current channels designed to drive WLED arrays for middle and large-size LCD panel backlighting applications.
Key Specifications
| Part Number | EV3385-R-00A |
| Board For | MP3385 |
| Board Type | Evaluation / demonstration board |
| Function | String WLED Controller With I2C Interface Evaluation Board |
| Input Voltage | 4.5 V to 33 V |
| Interface | I²C |
| Package | QFN-20 |
| Ordering Codes | EV3385-R-00A |
Features
- 4-String, Max 300mA/String WLED Driver
- 4.5V to 33V Input Voltage Range
- 80V Abs. Rating for Each String
- 1.8% Current Matching Accuracy for Each String
- Unused Channel Auto-Detection Function during Start-Up
- 100kHz-900kHz Programmable Switching Frequency
- 2%-100% Programmable Full Scale Current with 8-Bit Resolution
- 0%-100% LED Dimming Range with 10-Bit Resolution for Internal Dimming Mode
- Cascading Capability with a Single Power Source
- 18V to 80V Over-Voltage Protection, 2V/Step
Evaluation Board
Design Notes
- The board ships in a default configuration; check the jumper and resistor options against the user guide before applying power.
- Respect the input terminal rating — most faults on evaluation boards come from an supply above the marked limit.
- Test points on the switching node and output are for a short-ground probe, not for a long oscilloscope lead.
- Where a GUI is supported, connect the dongle before power-up so the device enumerates on the I²C bus.
Common Questions
What input voltage does the EV3385-R-00A support?
4.5 V to 33 V.
Which package and ordering codes apply to the EV3385-R-00A?
QFN-20; order codes include EV3385-R-00A.
What are the defining features of the EV3385-R-00A?
4-String, Max 300mA/String WLED Driver 4.5V to 33V Input Voltage Range
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