Datenblatt-Suchmaschine für elektronische Bauteile |
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EV3366-C-00A Datenblatt(PDF) 1 Page - Monolithic Power Systems |
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EV3366-C-00A Datenblatt(HTML) 1 Page - Monolithic Power Systems |
1 / 7 page EV3366-C-00A 6 Strings Boost White LED Driver Evaluation Board EV3366-C-00A Rev.1.1 www.MonolithicPower.com 1 8/2/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP3366 is a step-up converter with 6- channel current sources. It is designed for driving the white LED arrays as backlighting of mid- or larger- sized LCD panel. The MP3366 uses peak-current mode as its PWM control architecture. The switching frequency can be programmed by a resistor. It generates an output voltage up to 45V from a 3V to 25V input supply. The MP3366 independently regulates the current in each LED string to the value set by an external current-setting resistor. The MP3366 applies 6 internal current sources in each LED string terminal to achieve a current balance with 1.5% current regulation accuracy between strings. Its low 500mV regulation voltage on LED current sources reduces power loss. The MP3366 features external digital PWM dimming and analog dimming, both of which sharing a single input with 25% PWM duty cycle as a transfer point. The mix-dimming strategy helps to improve the dimming ratio. Also, MP3366 automatically transfers the PWM input signal 100Hz to 20kHz frequency to 23.5kHz to 29.5kHz to eliminate the audible noise. MP3366 has rich protection modes to guarantee safety operation. The protection modes include recoverable OCP (over-current protection), OVP (over-voltage protection), OTP (over-temperature protection), any string of LED short and open protection. The MP3366 is available in CSP- 18(1.35mmX2.55mm) package. ELECTRICAL SPECIFICATIONS Parameter Symbol Value Units Input Voltage VIN 3 – 25 V Output Voltage VLED <50 V LEDs # 6 string LED Current ILED 20/string mA FEATURES 6-String, Max 45mA/String 3V to 25V Input Voltage Range 1.5% Current Matching Accuracy Between Strings 600kHz Switching Frequency Combined Analog and PWM Dimming Mode with 25% Dimming Transfer Point 23.5kHz to 29.5kHz Output Dimming Frequency to eliminate audible noise Programmable Over-Voltage Protection Recoverable Thermal Shutdown Protection Cycle by Cycle Over Current Protection Under-Voltage Lockout Available in a WLCSP-18(1.35X2.55mm) Package APPLICATIONS Tablets NBs Handy Terminals Display All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. |
Ähnliche Teilenummer - EV3366-C-00A |
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Ähnliche Beschreibung - EV3366-C-00A |
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