MP3398A – White LED Controller

MP3398A Datasheet PDF learn more.

Part number : MP3398A

Functions : This is a kind of semiconductor, White LED Controller.

Pin arrangement :

Package information :

Manufacturer : MPS

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MP3398A Datasheet PDF

The texts in the PDF file :

The Future of Analog IC Technology MP3398A Step up, 4 strings, Max. 350mA/string Analog and PWM dimming, White LED Controller DESCRIPTION The MP3398A is a step-up controller with 4 current channels, which is designed to drive WLED arrays for large-size LCD-panel backlighting applications. It is flexible to expand the number of LED channels by two or more ICs in parallel sharing a single inductive power source. The MP3398A uses peak-current mode with fixed switching frequency. The frequency is programmable by an external setting resistor. The MP3398A drives an external MOSFET to boost up the output voltage from a 5V to 28V input supply. It regulates the current in each LED string to the value set by an external current-setting resistor. The MP3398A applies 4 internal current sources for current balance. The current matching can achieve 2.5% regulation accuracy between strings. Its low regulation voltage on LED current sources reduces power loss. The MP3398A can support both analog and PWM dimming independently to meet the different dimming-mode request. In addition, rich protection modes are also integrated including OCP, OTP, UVP, OVP, LED short/open protection, inductor/diode short protection. The MP3398A is available in SOIC16, TSSOP16-EP and SOIC20 packages. FEATURES • 4-String, Max 350mA/String WLED Driver • 5V to 28V Input Voltage Range • 2.5% Current Matching Accuracy Between Strings • Programmable Switching Frequency • PWM and Analog Dimming Mode • Cascading Capability with a Single Power Source • LED Open and Short LED Protection • Programmable Over-Voltage Protection • Recoverable Thermal Shutdown Protection • Over Current Protection • Inductor/Diode short Protection • Under-Voltage Lockout • SOIC16, TSSOP16-EP and SOIC20 Packages APPLICATIONS • Desktop LCD Flat Panel Displays • Flat Panel Video Displays • 2D/3D LCD TVs and Monitors All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green [ … ]

MP3398A PDF File

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