MPQ3326 is a 16-channel WLED driver that can operate from a wide 4V to 16V input voltage range. MP3326 applies 16 internal current sources in each LED string terminal. The LED current of each channel is set by an external current-setting resistor. The maximum current for each channel is 50mA (VIN >= 4.5V). The device integrates an I2C interface with up to 10 configurable I2C addresses via an external resistor. This means MPQ3326 can support up to 10 cascaded ICs to drive the LED array. Each channel can be enabled or disabled through the I2C. MPQ3326 employs both separated PWM dimming and analogue dimming for each LED channel, as well as 12bit resolution PWM dimming and 6bit analogue dimming for each channel. The device can output a refresh signal from RFSH/FLT pin, and the refresh signal frequency can be set by the register. Applications include automotive lights, automotive displays, instruments clusters and general industrial displays. It is available in a QFN-24 (4mmx4mm) package.
- LED current configured by external resistor
- 6bit analogue dimming for each channel, 12bit PWM dimming for each channel
- Selectable 220Hz, 250Hz, 280Hz or 330Hz PWM dimming frequency
- Refresh signal output, I2C interface, 40µs phase shift, fault indicator
- 10 addresses configurable via external resistor, configurable LED current slew rate
- LED short protection with configurable threshold
- Undervoltage lockout (UVLO), ELV directive II compliant
- AEC-Q100 Grade 1
- LED open and short protection and overtemperature protection (OTP) are integrated into device
- To optimize EMI/EMC performance, the LED current ramp rate and phase shift can be configured
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size. Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Product details
| Device Topology |
- |
| Input Voltage Min |
4V |
| Input Voltage Max |
16V |
| Output Voltage Max |
- |
| Output Current Max |
50mA |
| Switching Frequency |
- |
| No. of Outputs |
16Outputs |
| IC Mounting |
Surface Mount |
| Driver Case Style |
QFN |
| No. of Pins |
24Pins |
| Operating Temperature Min |
-40°C |
| Operating Temperature Max |
150°C |
| Product Range |
- |
| Automotive Qualification Standard |
AEC-Q100 |
| MSL |
MSL 1 - Unlimited |
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MPQ3326GR-AEC1-P |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
 |
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