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MP3326A 4.5-16V, 80mA, 16CH LED Driver QFN-24
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pMPS MP3326A — LED Driver, 4.5-16V input, 80 mA output, 16 channels, QFN-24./p
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MP3326A 4.5-16V, 80mA, 16CH LED Driver QFN-24
The MPS MP3326A is a LED Driver. It operates from a 4.5 V to 16 V input, is rated for 80 mA and drives 16 LED strings. It is supplied in a QFN-24 package.
Key Specifications
| Part Number | MP3326A |
| Function | LED Driver |
| Input Voltage | 4.5 V to 16 V |
| Current Rating | 80 mA |
| Channels | 16 |
| Interface | PWM |
| Package | QFN-24 |
| Ordering Codes | MP3326A |
Features
- Wide 4.5V to 16V Input Voltage (VIN) Range
- 16 Channels, Max 80mA/Channel
- LED Current (ILED) Configured via an External Resistor
- 6-Bit Analog Dimming for Each Channel
- 12-Bit Pulse-Width Modulation (PWM) Dimming for Each Channel
- Selectable 220Hz, 250Hz, 280Hz, or 330Hz PWM Dimming Frequency (fPWM)
- Refresh Signal Output
- Digital Interface
- 10 Addresses Configurable via an External Resistor
- Configurable ILED Slew Rate
Typical Application Circuit
Applications
- RGB Drivers
- LED Indicators
- Instruments Clusters
- General Displays
Design Notes
- Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
- In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
- Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
- Size the inductor and output capacitor for the string current ripple, not the total LED current.
Common Questions
What input voltage does the MP3326A support?
4.5 V to 16 V. The rated output is 80 mA.
Which package and ordering codes apply to the MP3326A?
QFN-24; order codes include MP3326A.
What are the defining features of the MP3326A?
Wide 4.5V to 16V Input Voltage (VIN) Range 16 Channels, Max 80mA/Channel
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