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Monolithic Power Systems Inc. MP3336AGC-P
- Part No.:
- MP3336AGC-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
MP3336AGC-P.pdf
- Description:
- DUAL-CHANNEL, FLASH LED DRIVER W
- Quantity:
- Payment:
- Shipping:
Inventory:4,382
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Product details
Overview
MP3336AGC-P from Monolithic Power Systems is a dual-channel, synchronous current-mode PWM boost flash LED driver with I²C interface, 2A per channel flash current (±7% accuracy), 1–4MHz selectable switching frequency, and integrated 5V DC output mode. It drives camera flash LEDs in smartphone and tablet imaging systems with thermal-aware layout via GND-referenced cathodes.
For engineers reviewing the MP3336AGC-P datasheet, MP3336AGC-P pinout, MP3336AGC-P application, or MP3336AGC-P equivalent, key selection criteria include dual-channel independent current control, I²C-configurable flash/assist/indicator/5V modes, WLCSP-20 thermal performance, and input DC current limit programmability from 1.66A to 5.5A.
Technical Context
The MP3336AGC-P implements a synchronous boost converter with current-mode PWM control, regulating LED current by sensing headroom voltage (VOUT − VLED) across dual high-current sources. Its adaptive switching frequency fold-back (1/2/3/4MHz) optimizes efficiency and EMI based on load and input conditions.
Operation spans four distinct modes: flash (up to 2A/ch, hardware/software edge/level trigger), assist (up to 319mA/ch), indicator (31.5kHz PWM dimming, 128/256/512ms blink), and 5V DC output (with EN1-enabled NFC support). Protection includes VIN UVLO (2.2V), OVP (5.555V), OTP (150°C shutdown), and LED short/open detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V–5.5V - supports single-cell Li-ion battery operation without external LDO. |
| Flash Current Accuracy | ±7% - ensures consistent brightness across production units and temperature range. |
| Max Switching Frequency | 4MHz - enables compact 1.1µH inductor and reduces output ripple for space-constrained mobile PCBs. |
| I²C Interface Speed | 400kHz - compatible with standard microcontroller I²C peripherals for real-time mode and current reconfiguration. |
| Thermal Resistance θJA | 55°C/W - measured on 4-layer PCB; enables 2.3W continuous dissipation at 25°C ambient. |
| LED Cathode Reference | GND-referenced - simplifies thermal pad layout and improves heat transfer to PCB ground plane. |
| Input DC Current Limit | Programmable 1.66A–5.5A - prevents battery overcurrent during flash burst while maintaining system stability. |
Pinout & Package
MP3336AGC-P is housed in a WLCSP-20 package (1.6mm × 2.0mm, 0.4mm pitch), optimized for ultra-thin mobile camera modules with direct die attach and minimal footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A4, B4 | LED1 | Anode current source for Channel 1; sinks up to 2A in flash mode with ±7% accuracy. |
| C4, D4 | LED2 | Anode current source for Channel 2; independently controllable for dual-LED stereo flash. |
| E4 | TX | Synchronization input for RF transmission; forces flash current reduction within 5µs when asserted. |
| A3, B3, C3 | VOUT | Boost converter output node; supplies regulated voltage to LED anodes and supports 5V DC mode. |
| D3 | EN | Global enable input; low disables all functions except I²C standby (25µA quiescent). |
| E3 | STR | Strobe trigger for hardware flash initiation; supports level- or edge-triggered capture synchronization. |
| A2, B2 | SW | Internal boost switch node; connects to external inductor and requires low-ESR ceramic output capacitor. |
| C2 | EN1 | 5V mode enable pin; allows entry into constant 5V output even when EN is low-designed for NFC coexistence. |
| D2 | SCL | I²C clock line; 400kHz max rate, internal 250kΩ pull-down for robust bus termination. |
| E2 | SDA | I²C data line; open-drain with internal 250kΩ pull-down, supports multi-master arbitration. |
| A1, B1 | PGND | Power ground return for boost switch and LED current paths; must be connected to low-impedance thermal pad. |
| C1 | AGND | Analog ground reference for precision current sensing and I²C logic; isolated from PGND for noise immunity. |
| D1 | VIN | Main input supply (2.7–5.5V); requires local 10µF ceramic bypass capacitor near pin. |
| E1 | NTC | Negative temperature coefficient resistor input; enables LED thermal derating when connected (35µA bias). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent current sources | Each channel programmable from 0–2A (flash), 0–319mA (assist), or PWM-dimmed (indicator) with separate enable bits. |
| Four operational modes | Hardware/software-configurable flash, assist, indicator (31.5kHz PWM + blink), and 5V DC output-no external mode logic required. |
| Adaptive switching frequency | 1/2/3/4MHz selection with automatic fold-back to 1MHz under light load or high headroom, improving efficiency and EMI. |
| Comprehensive fault protection | Integrated detection for LED short/open, VOUT-GND short, input UVLO, overvoltage (5.555V), overtemperature (150°C), and low-battery rollback. |
| Strobe-synchronized flash timing | STR input enables precise image capture alignment; supports level-triggered ramp-up and edge-triggered timeout with FT_TO flag. |
| NFC-compatible 5V mode | EN1 pin allows 5V DC output activation independent of EN state-enables simultaneous NFC field generation and LED power delivery. |
Applications
| Smartphone Dual-LED Flash | Tablet Camera Assist Light |
|---|---|
|
Use Scenario: Front/rear dual-LED flash in slim smartphones requiring synchronized burst illumination for low-light photography. IC Role / Device Role / Timing Role: Dual-channel current regulator with STR-triggered flash timing and I²C-based brightness calibration per channel. Use Value: Delivers 2A/ch flash current with ±7% matching, enabling consistent color temperature and exposure across dual LEDs without external current mirrors. |
Use Scenario: Continuous assist illumination for video recording in tablets, where ambient light is insufficient for autofocus or preview. IC Role / Device Role / Timing Role: Programmable assist-mode current source (0–319mA/ch) with 1.25mA/step ramp control and thermal-aware headroom management. Use Value: Provides stable, flicker-free assist light at 319mA/ch while maintaining <150mV headroom voltage-reducing power loss and junction temperature rise. |
| Digital Still Camera Indicator | NFC-Enabled Mobile Flash System |
|
Use Scenario: Status indication (e.g., charging, pairing, error) using low-power blinking LED on compact digital cameras. IC Role / Device Role / Timing Role: PWM-dimming controller in indicator mode with 31.5kHz carrier and selectable 2/3/4/5/16 duty cycles plus 128/256/512ms blink intervals. Use Value: Eliminates need for external PWM generator or MCU GPIO toggling-reduces BOM count and firmware overhead for status signaling. |
Use Scenario: Co-located NFC antenna and flash LED in premium smartphones requiring simultaneous 5V power delivery and RF field generation. IC Role / Device Role / Timing Role: Independent 5V DC output mode activated via EN1 pin, decoupled from main EN signal to avoid NFC interference during flash events. Use Value: Enables concurrent NFC transaction and flash readiness without shared power rail contention or voltage droop-induced RF failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel flash LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RT8542GQW | Single-channel, 1.5A max flash current; no 5V DC mode or EN1 pin; uses SPI instead of I²C. | Limited to mono-LED flash; lacks NFC coexistence capability and independent assist/indicator timing control. | Choose only if dual-channel operation and 5V mode are unnecessary and SPI interface is preferred. |
| ISL97693IRZ | Triple-channel, 1.2A/ch; supports analog/digital dimming but no built-in blink timer or TX-synchronized current reduction. | Better suited for multi-LED automotive interior lighting than mobile flash; lacks low-battery rollback and NTC thermal feedback. | Select when >2 channels are needed and thermal derating via NTC is not required for the target use case. |
Compared with RT8542GQW and ISL97693IRZ, MP3336AGC-P uniquely integrates dual independent 2A channels, I²C-configurable 5V DC mode with EN1, and hardware-synchronized TX current reduction-making it the only solution supporting NFC-coexistent flash in ultra-thin mobile form factors.
Availability
MP3336AGC-P is available at Aetrix Electronics and suitable for smartphone flash LED applications, tablet camera assist lighting, and digital still camera indicator systems requiring stable component supply, full lifecycle traceability, and RoHS-compliant packaging.
Supply support for MP3336AGC-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 analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP3336A belongs to MPS's mobile LED driver product line, engineered specifically for space-constrained, thermally sensitive camera modules in consumer handheld devices-emphasizing integration, efficiency, and intelligent protection.
FAQ
What is the maximum allowable flash duration before thermal shutdown occurs?
The MP3336AGC-P does not enforce a fixed maximum flash duration. Instead, it monitors junction temperature continuously: if TJ exceeds 150°C, switching halts and mode resets; if TJ rises above 130°C (adaptive threshold), flash current reduces to I_TX value. Actual safe duration depends on PCB thermal design, ambient temperature, and flash current setting-typical 200ms flash at 2A/ch is thermally sustainable on a 4-layer board with proper copper area.
How does the TX pin affect flash current, and what is the recovery time?
When TX transitions high during flash mode, the MP3336AGC-P reduces LED current to the preconfigured I_TX value within 5µs, and sets FT_TX = 1. Upon TX returning low, current ramps back to the original flash setting at the programmed TUP_I slew rate (1–8µs per step). This enables real-time RF interference mitigation without interrupting the flash sequence.
Can MP3336AGC-P drive LEDs with different forward voltages on each channel?
Yes. Each channel (LED1/LED2) has independent current regulation and headroom sensing (VOUT − VLED). The device dynamically adjusts boost output to maintain the required headroom (e.g., 350mV at 1.25A) regardless of VLED mismatch-enabling mixed-color LED arrays (e.g., white + amber) without external balancing components.
What is the purpose of the EN1 pin, and how does it differ from EN?
EN1 enables 5V DC output mode independently of the main EN pin. When EN is low (device disabled), pulling EN1 high activates the 5V regulator-critical for NFC applications where the antenna must remain powered while the flash controller is idle. EN controls all other functions (flash, assist, I²C), whereas EN1 exclusively gates the 5V mode.
Does MP3336AGC-P support automatic low-battery current rollback during flash?
Yes. When VIN drops below the programmable VBL_RUN threshold (configurable from 3.0V to 3.6V), the device reduces flash current stepwise during pulse execution. The final minimum current (IFL_MIN) and real-time current (IFL_ACT) are readable via I²C registers, enabling host software to adapt exposure settings or warn users of battery depletion.
Is NTC thermal monitoring mandatory, and what happens if the NTC pin is left unconnected?
No. NTC functionality is optional and disabled by default. If NTC is left floating (not connected), the internal 35µA bias is inactive and FT_LEDHOT remains cleared. Only when NTC_WD register is set and an NTC resistor is connected does thermal monitoring activate-triggering flash current reduction or standby reset upon overtemperature detection.
What is the significance of GND-referenced LED cathodes in layout design?
GND-referenced cathodes eliminate the need for high-side current sensing or floating ground planes. This allows direct connection of LED cathodes to the PCB's main ground plane and thermal pad, significantly improving heat dissipation and reducing layout complexity-critical for maintaining <125°C junction temperature in thin-profile mobile enclosures.
MP3336AGC-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 20-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 5V
- Current - Output / Channel:
- 2A
- Frequency:
- 1MHz, 2MHz, 3MHz, 4MHz
- Dimming:
- PWM
- Applications:
- Camera Flash
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-WLCSP (1.65x2.05)
MP3336AGC-P FAQ
1.How can I place an order for MP3336AGC-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3336AGC-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 MP3336AGC-P reliable?
The price and inventory of MP3336AGC-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3336AGC-P is usually 5 days.
3.What payment methods are accepted for MP3336AGC-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3336AGC-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3336AGC-P?
MP3336AGC-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3336AGC-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 MP3336AGC-P?
For technical support, including MP3336AGC-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3336AGC-P requirements.
6.How does Aetrix verify that MP3336AGC-P is sourced from the original manufacturer or authorized distributors?
All MP3336AGC-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 MP3336AGC-P meets industry standards.
7.What is the process for return or replacement of MP3336AGC-P?
All MP3336AGC-P units undergo pre-shipment inspection (PSI). If there is an issue with MP3336AGC-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 MP3336AGC-P part is unused and in its original packaging.
Return procedure for MP3336AGC-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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