Welcome to our company!
- Product Details
- Download
MP3397 5-28V Step-Up SOIC
The MPS MP3397 is a Step-Up. It operates from a 5 V to 28 V input. It is supplied in a SOIC package.
The MP3397 is a step-up controller with 4 current channels designed to drive WLED arrays for large-size LCD-panel backlighting applications.
Key Specifications
| Part Number | MP3397 |
| Function | Step-Up |
| Input Voltage | 5 V to 28 V |
| Interface | PWM |
| Package | SOIC |
| Ordering Codes | MP3397 |
Features
- 4-String, Max 350mA/String at 10% DPWM
- 5V to 28V Input Voltage Range
- 2.5% Current Matching Accuracy Between Strings
- Programmable Switching Frequency
- PWM or DC Input Burst PWM Dimming
- Open and Short LED Protection
- Programmable Over-Voltage Protection
- Cascading Capability with a Single Power Source
- Under-Voltage Lockout
- Thermal Shutdown
Typical Application Circuit
Applications
- Desktop LCD Flat Panel Displays
- Flat Panel Video Displays
Design Notes
- Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
- In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
- Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
- Size the inductor and output capacitor for the string current ripple, not the total LED current.
Common Questions
What input voltage does the MP3397 support?
5 V to 28 V.
Which package and ordering codes apply to the MP3397?
SOIC; order codes include MP3397.
What are the defining features of the MP3397?
4-String, Max 350mA/String at 10% DPWM 5V to 28V Input Voltage Range
Shenzhen Gaorunxin Technology Co., Ltd
Online message
Shenzhen Gaorunxin Technology Co., Ltd
