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Product Detailed Parameters
- Description：8 CHANNEL 350MA/CH BOOST WLED CO
- Series：MP
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：8
- Voltage - Supply (Min)：9V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：100kHz ~ 1MHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-TSSOP
- Grade：-
- Qualification：-
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Overview
The MP3373GM-P is an 8-channel boost WLED controller manufactured by Monolithic Power Systems. It operates with a switching frequency of 785 kHz and supports a maximum duty cycle of 90%. The device accepts an input voltage range suitable for battery-powered applications, delivering up to 10 V output voltage. Each channel provides a current sink capability of 350 mA. It features phase-shift functionality and external current sink BJTs support. The IC is housed in a 28-pin TSSOP package and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrates eight independent channels for driving white LED arrays with precise current control.
- Includes phase-shift function to distribute switching noise and reduce electromagnetic interference.
- Supports both analog and PWM dimming methods for flexible brightness adjustment.
- Features shutdown capability to minimize power consumption during standby modes.
Applications
- Backlighting for mobile phones and smartphones
- Display illumination for tablets and portable media players
- Camera flash systems in compact electronic devices
Procurement Notes
Verify the specific suffix 'P' against the manufacturer's latest documentation to confirm lead time and packaging specifications. Ensure compatibility with the target PCB footprint for the 28-TSSOP package. Confirm that the design accounts for the specified thermal dissipation requirements under maximum load conditions.
Selection Notes
Select this component when designing high-density LED backlight solutions requiring multiple channels from a single controller. It is suitable for applications needing integrated phase-shift management to meet EMI standards. Consider the 350 mA per channel limit when sizing the LED string configuration and heat sinking strategy.
Part Context
This part belongs to the MP3373 series of WLED controllers designed for portable electronics. It complements other MPS drivers like the MP3370GN-P, which targets single-string applications. The MP3373GM-P specifically addresses multi-channel needs found in modern smartphone and tablet displays.
Replacement Considerations
Check for MP3373GM-Z as a potential variant with different packaging or environmental compliance. Verify if legacy parts like MP3373GM are still available or if they have been superseded by newer revisions within the same family.
FAQ
What is the switching frequency of the MP3373GM-P?
The device operates at a fixed switching frequency of 785 kHz.
Does the MP3373GM-P support digital interface control?
No, the MP3373GM-P does not include an I2C interface; it relies on analog and PWM inputs for control.
