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MPQ3359C-AEC1 3.5-40V, 160mA, 4CH Boost WLED Controller QFN-20
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pMPS MPQ3359C-AEC1 — Boost WLED Controller, 3.5-40V input, 160 mA output, 4 channels, QFN-20, AEC-Q100./p
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MPQ3359C-AEC1 3.5-40V, 160mA, 4CH Boost WLED Controller QFN-20
The MPS MPQ3359C-AEC1 is a Boost WLED Controller. It operates from a 3.5 V to 40 V input, is rated for 160 mA and drives 4 LED strings. It is supplied in a QFN-20 package. The part is AEC-Q100 qualified.
The MPQ3359C is a step-up controller with 4 channel current sources.
Key Specifications
| Part Number | MPQ3359C-AEC1 |
| Function | Boost WLED Controller |
| Input Voltage | 3.5 V to 40 V |
| Current Rating | 160 mA |
| Channels | 4 |
| Interface | PWM |
| Package | QFN-20 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ3359C-AEC1 |
Features
- 3.5V to 40V Input Voltage (VIN) Range
- 4 Channels with a Maximum of 160mA per Channel
- Configurable Switching Frequency (fSW) Up to 2.2MHz
- External Sync SW Function
- Pulse-Width Modulation (PWM) Dimming
- Analog Dimming
- Deep Dimming Ratio
- Excellent EMI Performance and Frequency Spread Spectrum (FSS)
- Fixed 100µs Delay Time between LED Current Channels during PWM Dimming (Replaces Phase Shift)
- 2.5% Current Matching
Typical Application Circuit
Applications
- Automotive 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 MPQ3359C-AEC1 support?
3.5 V to 40 V. The rated output is 160 mA.
Which package and ordering codes apply to the MPQ3359C-AEC1?
QFN-20; order codes include MPQ3359C-AEC1.
What are the defining features of the MPQ3359C-AEC1?
3.5V to 40V Input Voltage (VIN) Range 4 Channels with a Maximum of 160mA per Channel
Is the MPQ3359C-AEC1 qualified for automotive designs?
Yes — it is AEC-Q100 qualified. Confirm the grade against the qualification summary in the datasheet before specifying it on a safety-related rail.
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