My Inquiry
My Account
Monolithic Power Systems Inc. MP3372GR-0000-P
- Part No.:
- MP3372GR-0000-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MP3372GR-0000-P.pdf
- Description:
- 8-CHANNEL, SYNCHRONOUS, 50V BOOS
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP3372GR-0000-P from Monolithic Power Systems is an 8-channel, synchronous boost WLED driver IC designed for LCD panel backlighting in tablets and notebooks. It integrates a 50V peak-current-mode boost converter with eight independent 50mA current sources, I²C programmability (including 14-bit PWM dimming), and comprehensive protection (LED short/open, OVP, OTP, OCP). Its QFN-24 (4mm×4mm) package supports high-density PCB layouts in space-constrained displays.
For engineers reviewing the MP3372GR-0000-P datasheet, MP3372GR-0000-P pinout, MP3372GR-0000-P application, or MP3372GR-0000-P equivalent, key selection criteria include its 3–30V input range, selectable 350kHz–2.4MHz switching frequency, 2.5% LED current matching, phase-shifted PWM dimming, and dual I²C address support (0x28/0x29) for multi-driver systems.
Technical Context
The MP3372GR-0000-P implements peak-current-mode control with internal 10MHz timing for precise 14-bit PWM dimming resolution and linear smooth dimming step-slopes (2–128µs). Its synchronous rectification uses integrated 150mΩ/230mΩ LS/HS FETs to minimize conduction loss and eliminate external diode requirements.
It features dynamic feedback selection-automatically choosing the lowest active LED string voltage as regulation reference-and supports cascade operation to share power stages across multiple ICs. Protection includes programmable LED short thresholds (2.5V/5V/7.5V/10V), OVP (24V–46V), and thermal shutdown at 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 30V - Supports wide-input battery and adapter supplies without external pre-regulation. |
| Max Output Voltage | 50V - Enables driving up to 13-series white LEDs per string at typical forward voltage (~3.8V). |
| LED Current per Channel | 0–50mA in 0.196mA steps - Full-scale current digitally set via I²C register for precise brightness calibration. |
| Current Matching | ±2.5% - Ensures uniform luminance across all 8 channels without external trimming components. |
| Switching Frequency | 350kHz to 2.4MHz (8 selectable values) - Balances efficiency, EMI, and inductor size; auto-selects based on load current. |
| I²C Address Options | 0x28 or 0x29 - Dual-address capability allows daisy-chaining up to two MP3372 devices on one bus. |
| Dimming Resolution | 14-bit PWM / 10-bit analog - Delivers >16,000 brightness levels with flicker-free, low-noise operation. |
Pinout & Package
MP3372GR-0000-P is housed in a thermally enhanced QFN-24 (4mm × 4mm) package with exposed pad tied to PGND for optimal thermal dissipation and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Internal LDO output | 4.9V regulated supply for gate driver and logic; requires local 1µF ceramic decoupling. |
| 2 EN | Enable input | Active-high digital enable; pulls low to enter <1µA shutdown mode. |
| 3 SDA | I²C data line | Open-drain bidirectional interface; requires external pull-up resistor (typically 4.7kΩ). |
| 4 SCL | I²C clock line | Input-only clock; supports up to 1.2MHz standard/fast-mode Plus timing. |
| 5 PWM | Analog/PWM dimming control | Accepts external PWM signal (0.4–1.2V logic thresholds); grounded if unused. |
| 6 COMP | Loop compensation node | Connects RC network to ground for stability tuning of current-mode control loop. |
| 7 A1 | I²C address select | Internally pulled high; connect to GND for 0x28, float for 0x29 address. |
| 8–15 LED1–LED8 | Constant-current outputs | Eight independent 50mA sink drivers; unused channels must be tied to GND. |
| 16 PGND | Power ground | Main return path for LED currents and boost switch; connects to exposed pad. |
| 18 OUT | Boost output | High-voltage rail feeding LED strings; rated for 50V continuous operation. |
| 20 SW | Switching node | Drives external inductor; connects to BST via RC network for HS-FET bootstrap. |
| 21 BST | Bootstrap capacitor node | Supplies gate drive voltage for high-side MOSFET; requires 100nF cap + 10Ω series resistor to SW. |
| 23 FF | Fault flag output | Open-drain indicator pulled low during LED short, OVP, OTP, or OCP events. |
| 24 VIN | Main power input | 3–30V supply input; requires local 10µF ceramic capacitor for ripple suppression. |
| EP | Exposed thermal pad | Must be soldered to solid PGND plane for thermal performance and EMI shielding. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous boost architecture | Integrated 150mΩ LS-FET and 230mΩ HS-FET eliminate external diode, reduce BOM count, and improve efficiency by >5% vs. asynchronous designs. |
| Phase-shifted PWM dimming | Configurable 0°–45° channel-to-channel delay (for 8 used channels) lowers inrush current peaks and eliminates audible coil whine in display backlights. |
| Mixed dimming mode | Combines analog dimming (fine brightness control) with PWM dimming (high contrast ratio) using programmable transfer points (6.25%/12.5%/25%/50%). |
| Auto-disable unused strings | Detects open or unconnected LEDx pins at startup and disables corresponding current sources to prevent false fault triggers and leakage paths. |
| Cascade power sharing | Enables multiple MP3372 ICs to synchronize switching and share load across a single inductor bank, reducing total solution size and cost. |
Applications
| Tablet Backlight Control | Notebook Display Driver |
|---|---|
|
Use Scenario: Driving 8 parallel LED strings behind a 10.1-inch IPS LCD panel with 13-series white LEDs per string. IC Role / Device Role / Timing Role: Primary WLED current controller and boost regulator; manages I²C-configured dimming profiles and real-time fault response. Use Value: Achieves 2.5% current matching across strings for uniform screen luminance, while phase-shifted PWM eliminates visible banding artifacts. |
Use Scenario: High-brightness backlight system for 14-inch OLED-hybrid notebook display requiring adaptive dimming and thermal management. IC Role / Device Role / Timing Role: Constant-current source with programmable OVP (38V) and thermal shutdown (150°C) to protect against LED aging and ambient temperature drift. Use Value: Maintains consistent brightness over 0–60°C operating range using auto-switching frequency (650kHz/1.2MHz) and linear smooth dimming slope (16µs). |
| Automotive Infotainment Display | Industrial HMI Panel |
|
Use Scenario: 12.3-inch automotive cluster display with ASIL-B functional safety requirements and wide-input 9–16V battery supply. IC Role / Device Role / Timing Role: Fault-tolerant WLED driver with dual I²C addresses, FF pin reporting, and redundant LED short detection (2.5V/7.5V thresholds). Use Value: Meets automotive EMC standards via synchronous operation and phase-shifted PWM, reducing conducted emissions by >10dB compared to non-synchronous alternatives. |
Use Scenario: Ruggedized 7-inch industrial HMI with extended temperature (-40°C to +85°C) operation and long-life LED arrays. IC Role / Device Role / Timing Role: Precision current regulator with 0.196mA step resolution and 14-bit PWM dimming for calibrated brightness grading in factory environments. Use Value: Eliminates manual current calibration via I²C register writes, cutting production test time by 30% and enabling field firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar WLED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132B-QT | 6-channel, 40V max, no integrated HS-FET (requires external MOSFET), 12-bit dimming only | Limited to smaller panels; lacks phase shift and mixed dimming modes | Select when lower channel count suffices and external component count is acceptable for cost optimization. |
| ISL97693IRZ-T7A | 8-channel, 36V max, asynchronous boost, 10-bit dimming, no I²C address selection | Higher power loss due to external Schottky diode; no dual-address support for multi-IC configurations | Choose where legacy I²C infrastructure exists and 36V output headroom meets design margin. |
Compared with RTQ2132B-QT and ISL97693IRZ-T7A, the MP3372GR-0000-P delivers higher integration (integrated HS/LS FETs), superior dimming fidelity (14-bit), and advanced features like phase shift and mixed dimming-enabling thinner, cooler, and more visually consistent backlight systems.
Availability
MP3372GR-0000-P is available at Aetrix Electronics and suitable for tablet backlighting, notebook display drivers, automotive infotainment systems, and industrial HMI panels requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MP3372GR-0000-P includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with over 20 years of expertise in DC/DC converters, LED drivers, and motor drivers.
The MP3372 belongs to MPS's WLED backlight driver product line, engineered specifically for high-efficiency, low-noise, and highly configurable LCD/OLED panel illumination in portable and automotive displays.
FAQ
What is the maximum number of LEDs per string the MP3372GR-0000-P can drive?
The MP3372GR-0000-P supports up to 13-series white LEDs per string when operating at 30V input and 50V output rating, assuming typical forward voltage of ~3.8V per LED. Total string voltage must remain ≤50V, and thermal limits must be observed at full 50mA per channel.
Does the MP3372GR-0000-P require external MOSFETs for boost operation?
No. The MP3372GR-0000-P integrates both low-side (150mΩ) and high-side (230mΩ) MOSFETs, eliminating the need for external switching transistors or a Schottky diode. Only an external inductor, input/output capacitors, and bootstrap RC network are required.
How does the phase-shift function reduce audible noise in display backlights?
By staggering PWM dimming edges across LED channels (e.g., 45° delay for 8 channels), the MP3372GR-0000-P distributes inductor current surges over time, lowering peak current harmonics that excite mechanical resonance in ferrite cores-reducing coil whine below human hearing threshold (20kHz).
Can the MP3372GR-0000-P operate with only 3 of its 8 LED channels enabled?
Yes. Unused LEDx pins (e.g., LED4–LED8) must be tied to PGND at startup to trigger auto-disable. The IC then configures only active channels for phase shift and current regulation, maintaining 2.5% matching across the enabled subset without performance penalty.
What protection features are hardware-based versus register-configurable?
Hardware protections include input UVLO (2.6V), thermal shutdown (150°C), and FF pin assertion on LED short or OVP. Register-configurable protections include LED short threshold (2.5V/5V/7.5V/10V), OVP level (24V/31V/38V/46V), and current limit (1.8A/2.5A)-all set via I²C before operation.
Is the MP3372GR-0000-P qualified for automotive AEC-Q100 stress testing?
No. The MP3372GR-0000-P is not AEC-Q100 qualified. For automotive applications, it may be used in non-safety-critical infotainment displays where customer qualification is performed independently; MPS offers AEC-Q100 variants (e.g., MPQ3372) for such use cases.
What is the minimum recommended BST capacitor value and type?
A 100nF X7R ceramic capacitor with ≤2Ω ESR is recommended between BST and SW pins. It must be placed within 2mm of the IC with short, wide traces to sustain reliable high-side gate drive under 2.4MHz switching and 2.5A peak currents.
MP3372GR-0000-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 8
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 30V
- Voltage - Output:
- -
- Current - Output / Channel:
- 1.8A, 2.5A
- Frequency:
- 650kHz
- Dimming:
- Analog, I2C, PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
MP3372GR-0000-P FAQ
1.How can I place an order for MP3372GR-0000-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3372GR-0000-P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MP3372GR-0000-P reliable?
The price and inventory of MP3372GR-0000-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3372GR-0000-P is usually 5 days.
3.What payment methods are accepted for MP3372GR-0000-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3372GR-0000-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3372GR-0000-P?
MP3372GR-0000-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3372GR-0000-P order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MP3372GR-0000-P?
For technical support, including MP3372GR-0000-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3372GR-0000-P requirements.
6.How does Aetrix verify that MP3372GR-0000-P is sourced from the original manufacturer or authorized distributors?
All MP3372GR-0000-P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP3372GR-0000-P meets industry standards.
7.What is the process for return or replacement of MP3372GR-0000-P?
All MP3372GR-0000-P units undergo pre-shipment inspection (PSI). If there is an issue with MP3372GR-0000-P, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MP3372GR-0000-P part is unused and in its original packaging.
Return procedure for MP3372GR-0000-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP3372GR-0000-P Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
