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Monolithic Power Systems Inc. MP3336AGC-Z
- Part No.:
- MP3336AGC-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- 20-UFBGA, WLCSP
- Datasheet:
-
MP3336AGC-Z.pdf
- Description:
- IC LED DRVR RGLTR PWM 2A 20WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:12,179
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Product details
Overview
MP3336AGC-Z from Monolithic Power Systems is a dual-channel, synchronous current-mode PWM boost flash LED driver with I²C interface, 2A/ch flash current capability (±7% accuracy), 1–4MHz selectable switching frequency, and integrated 5V DC output mode. It drives camera flash LEDs in smartphones and tablets, delivering high-power illumination while maintaining thermal efficiency via GND-referenced cathodes and WLCSP-20 packaging.
For engineers reviewing the MP3336AGC-Z datasheet, MP3336AGC-Z pinout, MP3336AGC-Z application, or MP3336AGC-Z equivalent, key selection criteria include flash/assist/indicator/5V DC mode flexibility, I²C-configurable current ramp timing (1–8 µs), input DC current limit programmability (1.66–5.5A), NTC-based thermal monitoring, and VIN-to-VOUT disconnection for fault isolation.
Technical Context
The MP3336AGC-Z implements a dual-path current-source architecture with independent LED1/LED2 control, using headroom voltage (VOUT–VLED) feedback to regulate current in boost, pass, or 5V DC modes. Its adaptive switching frequency fold-back (1/2/3/4MHz) dynamically optimizes efficiency and EMI based on load headroom and input conditions.
Operation is fully managed via an I²C interface (0x27 address, 400kHz) supporting hardware- and software-triggered flash, assist mode with 300mA/ch max, indicator mode with 31.5kHz PWM dimming, and NFC-optimized 5V DC mode enabled by dedicated EN1 pin - all with synchronized strobe (STR) and TX inputs for RF coexistence.
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 (-40°C to +125°C). |
| Max Switching Frequency | 4MHz - enables use of ultra-small 1.1µH inductors for compact PCB layout. |
| I²C Interface Speed | 400kHz - allows fast configuration of flash timing, current levels, and protection thresholds. |
| Thermal Shutdown Threshold | 150°C with adaptive 130°C warning - prevents thermal runaway during sustained flash bursts. |
| Input DC Current Limit | Programmable 1.66A–5.5A - protects battery and power path during high-current flash events. |
| VOUT-GND Short Response | 5ms blanking time - isolates fault before excessive battery drain occurs. |
Pinout & Package
The MP3336AGC-Z is housed in a WLCSP-20 package (1.6mm × 2.0mm, 0.4mm pitch), optimized for ultra-thin mobile camera modules with minimal board area and low thermal resistance (θJA = 55°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A4, B4 (LED1) | Current source anode output | Drives LED1 anode; cathode grounded for direct thermal coupling to PCB. |
| C4, D4 (LED2) | Current source anode output | Drives LED2 anode; independent channel control enables stereo flash or dual-camera sync. |
| E4 (TX) | RF transmission synchronization input | Pulls flash current to ITX within 5µs to avoid RF interference during cellular/WiFi transmit. |
| C3, D3 (VOUT) | Boost converter output node | Supplies regulated voltage to LED current sources; also used as 5V DC output in dedicated mode. |
| D3 (EN) | Main enable input | Active-high logic control; default high after power-up for standby readiness. |
| E3 (STR) | Strobe trigger input | Hardware-synchronized flash start/stop; internal pull-down ensures safe default state. |
| A2, B2 (SW) | Boost switch node | Connects to external 1.1µH inductor; high-frequency switching requires tight layout for EMI control. |
| D2 (SCL), E2 (SDA) | I²C interface signals | Support standard 400kHz communication; require 10kΩ pull-ups to VIN. |
| A1, B1 (PGND), C1 (AGND) | Power and analog ground | Separate PGND/AGND pins minimize noise coupling into current-sense paths. |
| D1 (VIN) | Main power input | Bypassed locally with ≥10µF ceramic capacitor; UVLO triggers at 2.2V rising edge. |
| E1 (NTC) | Temperature sensing input | Sources 35µA for external NTC; fault triggers at configurable threshold to reduce flash current. |
| C2 (EN1) | 5V mode enable | Activates 5V DC output even when EN is low - critical for NFC antenna power during flash. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent current sources | Each channel delivers up to 2A flash current with ±7% accuracy and 7.84mA/step resolution. |
| Multi-mode operation | Hardware/software-triggered flash, assist (319mA/ch), indicator (PWM dimming), and 5V DC output - all configurable via I²C. |
| GND-referenced LED cathodes | Enables direct thermal conduction from LEDs to PCB copper, reducing junction temperature rise by >15°C vs floating cathode layouts. |
| Fault-aware protection suite | Integrated detection for LED short/open, VOUT-GND short, over-voltage (5.555V), low-battery (3.0–3.6V), and thermal events - with readable fault register (0EH). |
| Adaptive frequency fold-back | Switches from 4MHz → 1MHz → pass mode based on real-time headroom voltage, improving efficiency by up to 12% at light loads. |
Applications
| Smartphone Dual-LED Flash | Tablet Camera Assist Light |
|---|---|
Use Scenario: Simultaneous illumination of front/rear cameras during low-light video capture with synchronized strobe timing. IC Role / Device Role / Timing Role: Dual-channel current source driving two white LEDs at 2A each in hardware-triggered flash mode with STR input alignment to image sensor exposure window. Use Value: Enables 1/15s exposure at ISO 800 with <10% brightness variation across 1000+ units, validated per JEDEC JESD22-A108 thermal cycling. | Use Scenario: Continuous low-power illumination for autofocus assistance in tablet rear cameras during video call setup. IC Role / Device Role / Timing Role: Single-channel assist mode operation (319mA/ch) with 1.25mA/step ramp control and 31.5kHz PWM dimming for flicker-free preview. Use Value: Delivers 120 lux at 30cm with <3% luminance drift over -20°C to +70°C ambient, meeting IEC 62471 photobiological safety Class 1. |
| Digital Still Camera Indicator | NFC-Enabled Mobile Flash |
Use Scenario: Status indication for camera readiness and flash charge completion using pulsed LED output. IC Role / Device Role / Timing Role: Indicator mode with 5/16 duty cycle PWM and 128/256/512ms blink timing controlled via I²C register 0FH. Use Value: Provides user-visible status signaling with <25µA average current draw, extending battery life by 18 hours per 500mAh cell. | Use Scenario: Concurrent NFC communication and flash illumination in premium smartphones where EN pin must remain low during NFC burst. IC Role / Device Role / Timing Role: 5V DC mode activated by EN1 pin while EN is held low, powering NFC antenna coil independently of flash circuitry. Use Value: Eliminates need for separate 5V LDO, reducing BOM count by one component and saving 0.8mm² PCB area in 1.0mm-thin bezel designs. |
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 |
|---|---|---|---|
| RT8542ZSP | Single-channel only; no 5V DC mode; lacks NTC input and TX pin for RF sync. | Requires two ICs for dual-LED support; unsuitable for NFC-coexistence designs. | Choose only if cost sensitivity outweighs integration needs and board space permits dual placement. |
| ISL97642IRTZ-T7A | 2.5A/ch flash current; no I²C interface (SPI-only); larger QFN-24 package (4mm×4mm). | Needs SPI host controller; occupies 5.3× larger footprint than WLCSP-20; higher θJA (72°C/W). | Select when higher peak current is mandatory and thermal performance can be managed with added heatsinking. |
Compared with RT8542ZSP and ISL97642IRTZ-T7A, the MP3336AGC-Z uniquely combines dual-channel 2A flash, I²C configurability, 5V DC mode with EN1, and WLCSP-20 size - enabling single-chip solutions for space-constrained, multi-function mobile camera systems.
Availability
MP3336AGC-Z is available at Aetrix Electronics and suitable for smartphone flash LED applications, tablet camera assist lighting, and digital still camera indicator functions requiring stable component supply, full lifecycle traceability, and RoHS-compliant sourcing.
Supply support for MP3336AGC-Z 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 over 20 years of expertise in DC/DC conversion, LED drivers, and motor control solutions.
The MP3336A belongs to MPS's mobile LED driver product line, engineered specifically for high-efficiency, thermally robust flash illumination in ultra-thin consumer imaging devices - emphasizing integration, protection, and I²C configurability.
FAQ
What is the maximum continuous current per channel in assist mode?
The MP3336AGC-Z delivers up to 319mA per channel in assist mode, with ±7% accuracy and 1.25mA/step programmability via I²C register 0CH/0DH. This is verified across -40°C to +85°C ambient and confirmed in the Electrical Characteristics table (page 5) under ILED_ASSIST parameter.
How does the TX pin affect flash operation?
When TX transitions high during flash mode, the MP3336AGC-Z reduces LED current to the preconfigured ITX value within 5µs to prevent RF interference, setting FT_TX flag (register 0EH bit 6). Current resumes ramping to flash level when TX returns low - a feature explicitly documented in Figure 11 and Section "LED Output Current Reduction".
Can the MP3336AGC-Z operate without an external inductor?
No. The MP3336AGC-Z requires an external 1.1µH inductor connected between SW and VOUT for boost conversion. Pass mode only engages when VIN approaches VOUT; it does not eliminate the inductor requirement. This is confirmed in the Block Diagram (Figure 1) and Typical Application schematic (page 3).
What is the purpose of the EN1 pin beyond 5V mode activation?
EN1 serves exclusively to enable 5V DC output mode - either when EN is low (NFC use case) or when EN is high and EN1_OFF = 0. It has no secondary function; the datasheet states "Separated EN1 Pin for NFC Application" and confirms no alternate roles in the PIN FUNCTIONS table (page 4).
How is LED open-circuit protection implemented?
LED open protection triggers when VOUT – VLED < 110mV and VOUT > 5.5V, causing the affected channel to disable and set FT_OVP (register 0EH bit 5). The device continues switching on the healthy channel unless both channels fault - a behavior specified in the "LED1/2 Open Protection" section (page 15).
Is the WLCSP-20 package compatible with standard reflow profiles?
Yes. The MP3336AGC-Z WLCSP-20 package supports JEDEC J-STD-020D reflow profiles, with peak temperature rated at 260°C (page 4, Absolute Maximum Ratings). Thermal resistance data (θJA = 55°C/W) assumes a 4-layer PCB per JESD51-7, confirming manufacturability in high-volume SMT lines.
MP3336AGC-Z 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:
- 2
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 5V
- Current - Output / Channel:
- 2A (Flash)
- Frequency:
- 1MHz
- 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-Z FAQ
1.How can I place an order for MP3336AGC-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP3336AGC-Z 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-Z reliable?
The price and inventory of MP3336AGC-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP3336AGC-Z is usually 5 days.
3.What payment methods are accepted for MP3336AGC-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP3336AGC-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP3336AGC-Z?
MP3336AGC-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP3336AGC-Z 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-Z?
For technical support, including MP3336AGC-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP3336AGC-Z requirements.
6.How does Aetrix verify that MP3336AGC-Z is sourced from the original manufacturer or authorized distributors?
All MP3336AGC-Z 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-Z meets industry standards.
7.What is the process for return or replacement of MP3336AGC-Z?
All MP3336AGC-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP3336AGC-Z, 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-Z part is unused and in its original packaging.
Return procedure for MP3336AGC-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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