MP3324GRE-P

MP3324 is an 8-channel white LED (WLED) driver that operates from a wide 4V to 16V input voltage (VIN) range. The MP3324 applies eight internal current sources in each LED string terminal. The LED current (ILED) of each channel is set by an external current-setting resistor. Each channel has a 100mA maximum current (while VIN ≥ 4.5V). The device integrates an I2C interface. There are ten different I2C addresses that can be configured via an external resistor. This means the MP3324 can support up to ten ICs that have been cascaded to drive an LED array. Each channel can be enabled or disabled via the I2C. The MP3324 employs both separated pulse width modulation (PWM) dimming and analogue dimming for each LED channel, with a 12bit PWM dimming resolution and 6bit analogue dimming per channel. The ILED ramping rate and phase shift can be configured to reduce EMI and EMC. applications include LED lights, instruments clusters and general displays.

• 8 channels, maximum 100mA per channel (VIN ≥ 4.5V)
• LED current (ILED) configured via an external resistor, 6bit analogue dimming per channel
• 12bit pulse-width modulation (PWM) dimming per channel
• Selectable 220Hz, 250Hz, 280Hz, or 330Hz PWM dimming frequency (fPWM)
• Refresh signal output, 10 addresses configurable via an external resistor
• Configurable ILED slew rate, 80μs phase shift, fault indication, LED open protection
• LED short protection with configurable threshold
• Undervoltage lockout (UVLO) protection, overtemperature protection (OTP)
• ELV directive II compliant
• QFN-24 (4mmx4mm) package

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.