Electronic Components Datasheet Search |
|
MP3388EY Datasheet(PDF) 1 Page - Monolithic Power Systems |
|
MP3388EY Datasheet(HTML) 1 Page - Monolithic Power Systems |
1 / 14 page MP3388 50V, 8-String White LED Driver MP3388 Rev. 1.0 www.MonolithicPower.com 1 12/16/2011 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2011 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP3388 is a step-up converter with 8-channel current sources designed for driving the white LED arrays for large size LCD panel backlighting applications. The MP3388 uses current mode, fixed frequency architecture. The switching frequency can be selected at 1.25MHz or 625kHz. It generates an output voltage up to 50V from a 4.5V to 25V input supply. The MP3388 independently regulates the current in each LED string to the user programmed value set by an external current setting resistor. The MP3388 applies 8 internal current sources in each LED string terminal to achieve a current balance of 3% regulation accuracy between strings. Its low 600mV regulation voltage on LED current sources reduces power loss and improves efficiency. The MP3388 features external PWM dimming or DC input PWM dimming, which allows the flexible control of the backlighting luminance. The dimming PWM signal can be generated internally, and the dimming frequency is programmed by an external setting capacitor. FEATURES • High Efficiency and Small Size • 4.5V to 25V Input Voltage Range • 50V Maximum Step-up Voltage • Balanced Driver for 8 Strings of WLED • 3% Current Matching Accuracy Between Strings • Selectable Switching Frequency: 1.25MHz or 625kHz • PWM or DC Input Burst PWM Dimming • Programmable Over-voltage Protection • Under Voltage Lockout • Open and Short LED protection • Thermal Shutdown • Small QFN24 (4x4mm) and 28 pin SOIC packages • Halogens Free APPLICATIONS • Notebook PC • Small LCD TV • Handy Terminals Display • Automotive System and Tablet Computer All MPS parts are lead-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. TYPICAL APPLICATION VIN 4.5V~25V MP3388 VCC VIN COMP VFAULT SW2 SW1 24 23 22 21 20 19 EN OSC FSET PWMO GND PWMI LED8 LED7 LED6 LED5 LED4 ISET PGND1 PGND2 OVP LED1 LED2 LED3 78 9 10 11 12 1 2 3 4 5 6 18 17 16 15 14 13 Enable PWM DIMMING NC L1 D1 M1 C1 C3 C2 R1 R2 RSET C4 C5 C6 |
Similar Part No. - MP3388EY |
|
Similar Description - MP3388EY |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |