MP3371GR-0000-P is a MP3371 series boost WLED driver with an I²C interface. The synchronous boost converter with 8 current channels with a max of 50mA/channel is designed to drive WLED arrays for LCD panels in tablets and notebook backlighting applications. The MP3371 uses peak current control mode and pulse-width modulation (PWM) control to maintain boost converter regulation. The MP3371 employs a standard I²C digital interface to set the operation mode, switching frequency, full-scale current for each channel, sync or non-sync mode, dimming mode and duty, and various protection thresholds. The MP3371 features high efficiency due to low headroom voltage for LED regulation and a small resistance of the switching MOSFET. The synchronous rectifier saves PCB size and total BOM cost. Mixed dimming mode through external PWM input or I²C interface with 6.25%, 12.5%, 25%, or 50% transfer point, 14- Bit PWM duty resolution. Applications include automotive displays.
- Synchronous converter with 50V LS-FET/HSFET 155m/235mohm on resistance
- 3V to 30V input voltage range, 470mV LED regulation voltage at 20mA
- Max 2.5% current matching, A1 pins for two I²C addresses
- 0mA to 50mA full-scale LED current, 8 bits, 0.196mA/step
- LED short/open, OTP, OCP, inductor, or diode short protection
- 2.5V/5V/7.5V/10V LED short threshold, 24V/31V/37.5V/45V OVP threshold
- 1.8A/2.5A current limit, cascade function to share power stage
- Analog dimming through external PWM input or I²C interface, 10-bit resolution
- PWM dimming through external PWM input or I²C interface, 14-bit resolution
- QFN-24 (4mmx4mm) package, operating junction temperature range from -40°C to +125°C(TJ)
Footnotes MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.
Product details
| Device Topology |
Synchronous Boost (Step Up) |
| Input Voltage Min |
3V |
| Input Voltage Max |
30V |
| Output Voltage Max |
50V |
| Output Current Max |
50mA |
| Switching Frequency |
650kHz |
| No. of Outputs |
8Outputs |
| IC Mounting |
Surface Mount |
| Driver Case Style |
QFN |
| No. of Pins |
24Pins |
| Operating Temperature Min |
-40°C |
| Operating Temperature Max |
125°C |
| Product Range |
- |
| Automotive Qualification Standard |
- |
Other details
| Brand |
MONOLITHIC POWER SYSTEMS (MPS) |
| Part Number |
MP3371GR-0000-P |
| Quantity |
Each (Supplied on Cut Tape) |
| Technical Data Sheet EN |
 |
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