DESCRIPTION
The MP3336 is a dual-channel and high-power flash LED driver with very compact package. It can drive up to 2A in flash mode for each LED. It is usually applied for camera phones to improve image and video quality in low light environment. The device operates in1/2/3/4MHz synchronous, current-mode PWM boost converter to regulate the LED current with two high current source. The MP3336 provides an optimized solution for smaller PCB space and higher efficiency.
FEATURES
• 2.7V~5.5V Input Voltage
• 1/2/3/4MHz Selectable Max Switching
Frequency
• Switching Frequency Fold-Back Function
• 400kHz I2C Compatible Interface
• Standby/Flash/Assist/Torch/Indicator/5V DC
Modes
Flash Mode:
Up to 2A/Ch Programmable Current with +/-
7% Accuracy for Each LED, 7.84mA/Step
Assist/Torch Mode:
Up to 319mA/Ch Programmable Current
with +/-7% Accuracy for Each LED,
1.25mA/Step
Indicator Mode:
Work In 31.5kHz PWM Dimming Mode With
2/16, 3/16, 4/16, 5/16 Duty Cycle
Used for Blinking and 128/256/512ms
Selectable Blinking Time
5V DC Mode:
Output Constant 5V DC Voltage
• 1A to 4.2A Programmable Input DC Current
Limit Protection
• External Torch/Strobe/TX Pin
• LED Forward Voltage Balance to Improve
Efficiency
• VIN to VOUT Disconnection Function
• Low Battery Voltage Protection
• LED Short/Open Protection
• VOUT-GND Short Protection
• Over Voltage Protection
• Over Temperature Protection
• Input Under Voltage Lockout Protection
• Available In WLCSP20-1.6X2.0mm
APPLICATIONS
• Smart Phone Flash LED Application
• Cameras for Tablet
• Digital Still Camera