MP3802DH-LF-P

MP3802 240Vpp High Voltage EL Lamp Driver The Future of Analog IC Technology DESCRIPTION FEATURES The MP3802 is a high output voltage, DC to AC converter designed for driving Electroluminescent (EL) lamps of up to 5 square inches. The device operates from an input voltage range of 2.5V to 5.5V, making it suitable for 1-cell Li-Ion and 2 or 3-cell alkaline/NiCad/NiMH battery applications. The device uses a single inductor and a minimum number of passive components. The MP3802 converts a low-voltage DC input to a ±120V regulated output voltage that drives the EL lamp. • • • • • • • • 2.5V to 5.5V DC Input Voltage 240VPP Regulated AC Output Waveform Single Cell Lithium-Ion Compatible 10nA Shutdown Current Adjustable EL Lamp Frequency Adjustable Converter Frequency Available in MSOP-8 Split Supply Capability APPLICATIONS • • • • • • • The MP3802 is comprised of two stages: a boost stage and a H-bridge lamp driver stage. The boost stage converts the input voltage up to 120V. The H-bridge stage alternately switches the 120V to each terminal of the EL lamp. The MP3802 has two separate internal oscillators for the boost and H-bridge stages. The frequency of each oscillator is set independently via external resistors. This flexibility allows the EL lamp circuit to be optimized for maximum performance. Also, the IC can be enabled /disabled by connecting these two resistors to VDD/GND. Portable Multimedia Players LCD Backlighting PDAs Handheld Wireless Communication Mobile Phones Remote Controls Global Positioning Systems (GPS) “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. The MP3802 is available in an 8-pin MSOP package. TYPICAL APPLICATION OFF ON EN 1 2 3 VDD VA RSW_OSC VB MP3802 REL_OSC CS 8 7 EL LAMP 6 BAS21 4 GND LX 5 COUT 3.3nF 150V VIN MP3802 Rev. 0.91 12/10/2013 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. 1 MP3802 – 240VPP HIGH VOLTAGE EL LAMP DRIVER ABSOLUTE MAXIMUM RATINGS (1) PACKAGE REFERENCE Supply Voltage (VDD) .................. –0.5V to +6.0V Output Voltage (VCS, VA, VB)...... –0.5V to +125V All Other Pins ..................... –0.5V to VDD + 0.3V Junction Temperature ..............................150°C Lead Temperature....................................260°C Storage Temperature .............–65°C to +150°C TOP VIEW VDD 1 8 VA RSW_OSC 2 7 VB REL_OSC 3 6 CS GND 4 5 LX Recommended Operating Conditions Part Number* Package Temperature MP3802DH MSOP8 –40°C to +85°C (2) Supply Voltage ............................... 2.5V to 5.5V Lamp Drive Frequency (fEL) ..........60Hz to 1KHz Switching Transistor Freq...... 50KHz to 200KHz Operating Temperature .............–40°C to +85°C Thermal Resistance (3) θJA θJC MSOP8 ................................. 150 ..... 65... °C/W * For Tape & Reel, add suffix –Z (eg. MP3802DH–Z) For RoHS Compliant Packaging, add suffix –LF (eg. MP3802DH–LF–Z) Notes: 1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its operating conditions. 3) Measured on approximately 1” square of 1 oz copper. ELECTRICAL CHARACTERISTICS VIN = VDD = 3.0V, REL=1.7MΩ, RSW=510KΩ, TA = +25°C, unless otherwise noted. Parameter Symbol Condition On Resistance of Switching Transistor RDS(ON) Output Voltage Regulation Peak to Peak Output Voltage Input Low Voltage (Turn Off) Input High Voltage (Turn On) Shutdown Current Input Supply Current VCS VA – VB VEN-L VEN-H ISD IVDD Input Current Including Inductor Current IIN EL Lamp Frequency Switching Transistor Frequency fEL fSW Switching Transistor Duty Cycle D Min ISW = 100mA, VCS = 120V VEN = 0V VA, VB Open, VEN = VIN A 2kΩ resistor is series with a 10nF capacitor connected between VA and VB 200 Typ Max Units 9 Ω 120 240 VDD – 0.6 VDD – 0.3 10 100 V V V V nA µA 22.5 mA 250 84 91 300 Hz KHz % Note: 4) Shutdown current is defined as the sum of currents going into VDD, VCS, and SW nodes. MP3802 Rev. 0.91 12/10/2013 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. 2 MP3802 – 240VPP HIGH VOLTAGE EL LAMP DRIVER PIN FUNCTIONS Pin # Name 1 VDD 2 RSW_OSC Supply Voltage. Boost Converter Frequency Setting Pin. Refer the frequency setting curve in the typical performance characteristics. 3 REL_OSC EL Driver Frequency Setting Pin. Roughly, fEL= 4 5 GND LX 6 CS Boost Converter Output. Put a 150V, NPO ceramic capacitor at this pin to stone the energy transferred from the inductor. 7 8 VB VA Output Voltage B on EL Device. Output Voltage A on EL Device. MP3802 Rev. 0.91 12/10/2013 Description 1.7MΩ × 240Hz R EL Ground. Connect the exposed pad to this pin. Boost Converter Switching Pin. This pin connects to the N-Channel MOSFET drain. www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. 3 MP3802 – 240VPP HIGH VOLTAGE EL LAMP DRIVER BLOCK DIAGRAM L1 D1 VIN CIN REL RSW RSW_OSC 1 2 COUT 5 L X VDD Switch OSC 6 4 GND Q3 + -- Q1 EL Driver 8 Ref 3 REL_OSC EL OSC Q4 CS VA EL Lamp Q2 VB 7 Figure 1—Functional Block Diagram MP3802 Rev. 0.91 12/10/2013 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. 4 MP3802 – 240VPP HIGH VOLTAGE EL LAMP DRIVER PACKAGE INFORMATION MSOP8 0.087(2.20) 0.099(2.50) 0.114(2.90) 0.122(3.10) 5 8 0.114(2.90) 0.122(3.10) PIN 1 ID (NOTE 5) 0.187(4.75) 0.199(5.05) 0.062(1.58) 0.074(1.88) Exposed Pad 0.010(0.25) 0.014(0.35) 4 1 0.0256(0.65)BSC BOTTOM VIEW TOP VIEW GAUGE PLANE 0.010(0.25) 0.030(0.75) 0.037(0.95) 0.043(1.10)MAX SEATING PLANE 0.002(0.05) 0.006(0.15) FRONT VIEW NOTE: 0.181(4.60) 0.040(1.00) 0.016(0.40) 0.016(0.40) 0.026(0.65) SIDE VIEW 0.100(2.54) 0.075(1.90) 0o-6o 0.004(0.10) 0.008(0.20) 1) CONTROL DIMENSION IS IN INCHES. DIMENSION IN BRACKET IS IN MILLIMETERS. 2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURR. 3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. 4) LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.004" INCHES MAX. 5) PIN 1 IDENTIFICATION HAS HALF OR FULL CIRCLE OPTION. 6) DRAWING MEETS JEDEC MO-187, VARIATION AA-T. 7) DRAWING IS NOT TO SCALE. 0.0256(0.65)BSC RECOMMENDED LAND PATTERN NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MP3802 Rev. 0.91 12/10/2013 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. 5