EV4008-S-00A MPS | Alldatasheet

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High-Brightness High-Current Accuracy WLED Controller EV4008-S-00A Rev.1.0 www.MonolithicPower.com 1 6/26/2015 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. The Future of Analog IC Technology

DESCRIPTION

The EV4008-S-00A is designed to demonstrate the capabilities of MP4008. The MP4008 is a current mode controller designed for driving the high brightness Light Emitting Diodes (LEDs) with wide input voltage 9V-28V. It can be used both in Boost and SEPIC topologies. With a 20-48V power supply PVIN and a 9-28V IC supply for MP4008, The evaluation board can drive a single LED string with the LED current regulated to 350mA and VLED voltage up to 70V. Apply a PWM dimming signal to do PWM dimming. The Over-Voltage protection, short LED protection, short inductor/diode protection and over current protection are integrated. ELECTRICAL SPECIFICATION Parameter Symbol Value Units Power Supply Voltage PVIN 20-48 V IC Supply Voltage VIN 9-28 V LED Voltage VLED 70(max) V LED Current ILED 350 mA Switching Frequency fs 180 kHz Over Voltage Protection Point VOVP 81 V

FEATURES

  • Constant-current WLED Driver Controller
  • 280mV Feedback Voltage with ±1.8% Accuracy
  • 9V-28V Input Voltage
  • Leading Edge Blanking for Current Sense
  • Frequency Fixed 180kHz
  • Fast PWM Dimming
  • Soft Start
  • Over Voltage Protection
  • Short LED Protection
  • Short Output Protection
  • Over Current Protection
  • Short Inductor/Diode Protection
  • VIN UVLO
  • Thermal Shutdown
  • Available in SOIC-8 package

APPLICATIONS

  • LCD Backlighting
  • DC/DC LED Driver
  • General Illumination 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. Warning: Although this board is designed to satisfy safet y requirements, the engineering pr ototype has not been agency approved. Therefore, all testing should be performed using an isolation transformer to provide the AC input to the prototype board.

EV4008-S-00A HIGH-BRIGHTNESS HIGH-ACCURACY WLED CONTROLLER EV4008-S-00A Rev.1.0 www.MonolithicPower.com 2 6/26/2015 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. EV4008-S-00A EVALUATION BOARD (L x W x H) 7.5cm x 6..5cm x 1.5cm Board Number MPS IC Number EV4008-S-00A MP4008GS EVALUATION BOARD SCHEMATIC GATE4 CS3 GND2 VIN1 PWM 5 COMP 6 FB 7 OVP 8 MP4008 PVIN PGND GND NS 100V/9A AP18T10AGH PVIN VIN 1 2 NS 21 2.2uF/50V VIN=9-28V VIN GND PGND 20K R14 1nF C10 SGND PWM PGND LED+ 2 1 100pFC5 SGND GATE PGND LED- SGND 1 2 D4 1N4148 PGND GATE VIN=20-48V 70V/350mA 200m 1 2 D2 1N4148 SGND SGND 21 1nF SGND 50V 100uF 21 2.2uF/50V 6.8nF C11 3.6K R16 1KR7 1, 2, 3 5, 6, 7, 8 12 22uF/100V 1 2 1uF/100V 1KR13 200m R5 10.5KR8 300K 1.6 R10 1.6 R11 NS R12 220nF 6.8nF 100uH/2.4AL1 1 2 D1 100V/2A 10R3 100R4 100R15

EV4008-S-00A HIGH-BRIGHTNESS HIGH-ACCURACY WLED CONTROLLER EV4008-S-00A Rev.1.0 www.MonolithicPower.com 3 6/26/2015 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. BILL OF MATERIALS Qty Ref Value Description Package Manufacture Manufacture_PN

1 C1 100μF Electrolytic Capacitor;50V DIP 江海 CD287-50V100

2 C2 2.2μF/50V Ceramic Capacitor; 50V;X7R; 1206 1210 TDK C3225X7R1H225K

1 C3 1μF/100V Ceramic Capacitor;

100V;X7R; 1210 1210 muRata GRM32ER72A105KA01L

1 C4 22μF/100V Electrolytic Capacitor;100V DIP 江海 CD263-100V22

1 C5 100pF Ceramic Capacitor;

50V;C0G; 0603 0603 TDK C1608COG1H101J

2 C6, C10 1nF Ceramic Capacitor;

50V;X7R; 0603; 0603 TDK C1608X7R1H102K 2 C7, C11 6.8nF Ceramic Capacitor; 50V;X7R; 0603 0603 LION 0603B682K500T

1 C8 220nF Ceramic Capacitor;

16V;X7R; 0603; 0603 muRata GRM188R71C224KA01D 1 C9 2.2μF/50V Ceramic Capacitor; 50V;X7R; 1206 1206 muRata GRM31CR71H225KA88L

1 D1 B2100 Shottky Diode;100V;2A; SMB Diodes B2100

2 D2, D4 1N4148W Diode;75V;0.15A; SOD-123 Diodes 1N4148W

1 D3 NS

2 JR1,JR2 0 Film Resistor ;5% 1206 Yageo RC1206JR-070R

1 L1 100μH/2.4A Inductor;100 μH;220m;2.4A SMD Wurth 74477020 1 M1 AP18T10AGH Mosfet;100V; 160;9.6;9 TO-252 APEC AP18T10AGH

1 M2 AM4490N N-Channel

Mosfet;100V;92;12.5; 5.2 SO-8 Analog Power AM4490N

1 R1 300k Resistor;1%;1/4W 1206 Yageo RC1206FR-07300KL

2 R2, R12 NS

1 R3 10 Film Resistor;5%; 0603 Yageo RC0603JR-0710RL

2 R4, R15 100 Film Resistor;1% 0603 Yageo RC0603FR-07100RL

2 R5, R6 200m Film Resistor;1%; 1206 Yageo RL1206FR-070R2L

2 R7, R13 1k Film Resistor;5%; 0603 Yageo RC0603FR-071KL

1 R8 10.5k Film Resistor;1% 0603 Yageo RC0603FR-0710K5L

1 R9 2k Film Resistor;1%; 0603 Yageo RC0603FR-072KL

2 R10, R11 1.6 Film Resist or;1% 1206 Yageo RC1206FR-071R6L

1 R14 20k Film Resistor;1%;1/10W; 0603 Yageo RC0603FR-0720KL

1 R16 3.6k Film Resistor;5 %;1/10W 0603 LIZ CR0603JA0362G

1 U1 MP4008GS MP4008 SO-8 MPS MP4008GS

EV4008-S-00A HIGH-BRIGHTNESS HIGH-ACCURACY WLED CONTROLLER EV4008-S-00A Rev.1.0 www.MonolithicPower.com 4 6/26/2015 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. EVB TEST RESULTS PVIN=20-48V, VIN = 12V, VLED= 70V, ILED=350mA, TA = 25ºC, unless otherwise noted.

EV4008-S-00A HIGH-BRIGHTNESS HIGH-ACCURACY WLED CONTROLLER EV4008-S-00A Rev.1.0 www.MonolithicPower.com 5 6/26/2015 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN=12V, PVIN=20V, VLED=70V, ILED=350mA, L=100μH, TA=25°C, unless otherwise noted.

EV4008-S-00A HIGH-BRIGHTNESS HIGH-ACCURACY WLED CONTROLLER NOTICE: The information in this document is subject to change wi thout notice. Please contact M PS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights ar e not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV4008-S-00A Rev.1.0 www.MonolithicPower.com 7 6/26/2015 MPS Proprietary Information. Patent Protec ted. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. QUICK START GUIDE 1. Preset the LED string forward voltage to 70V, connect the anode of LED string to ‘LED+’ and the cathode of LED string to ‘LED-’; 2. Preset the PVIN supply voltage to 20-48V, turn off the power supply, connect the power supply to ‘PVIN’; 3. Preset the VIN supply voltage 9-28V, turn off the power supply, connect the power supply to ‘VIN’; 4. Connect the ‘PWM’ connector to the PWM dimming signal; the high level of PWM signal is in the range of 1.5V-5V, and the low level is in the range of 0-0.4V; 5. Turn on PVIN supply, set PWM signal to high level, turn on VIN supply, the LED string should be ignited. 6. To demo the PWM dimming function: connect the ‘PWM’ connector to an PWM signal; the frequency of the PWM signal is in the range of 100Hz to 2kHz, the high level of the PWM signal is 1.5V-5V and low level is 0-0.8V. Adjust the duty of the PWM signal; the LED current will follow the duty of the PWM dimming signal.