EVQ1530 MPS | Alldatasheet

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TFT Bias Converter EV Board AEC-Q100 Qualified EVQ1530 Rev. 1.1 www.MonolithicPower.com 1 3/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. The Future of Analog IC Technology

DESCRIPTION

The EVQ1530 evaluation board is designed to demonstrate the capabilities of MPS’ MPQ1530 triple output step-up converter which is capable of powering a TFT panel from a regulated 3.3V or 5V. The MPQ1530 includes a 1.4MHz fixed- frequency step-up converter and a positive and negative linear regulator. The linear regulators are powered from a charge-pump driven by the step-up converter switch node (SW). A single on/off control enables all 3 outputs. The outputs are internally sequenced at power on and power off for ease of use. An internal soft-start prevents overloading the input source at startup. Cycle-by-cycle over current protection limits component overstress. ELECTRICAL SPECIFICATIONS Parameter Symbol Value Units Input Voltage V IN 2.7 – 5.5 V Output Voltage 1 V MAIN +13 V Output Current 1 I MAIN 350 mA Output Voltage 2 V GH +27 V Output Current 2 I GH 20 mA Output Voltage 3 V GL –8.5 V Output Current 3 I GL 20 mA

FEATURES

  • 2.7 to 5.5V Operating Input Range
  • 2.8A Switch Current Limit
  • 3 Outputs In Single Package
  • Step-Up Converter up to 22V
  • Positive 20mA Linear Regulator
  • Negative 20mA Linear Regulator
  • 250m Ω Internal Power MOSFET Switch
  • Up to 95% Efficiency
  • 1 μA Shutdown Mode
  • Fixed 1.4MHz Frequency
  • Positive Regulator up to 38V
  • Negative Regulator down to –20V
  • Internal Power-On Sequencing
  • Adjustable Soft-Start/Fault Timer
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Under Voltage Lockout
  • Ready Flag

APPLICATIONS

  • TFT LCD Displays
  • Portable DVD Players
  • Tablet PCs
  • Car Navigation Displays All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. EVQ1530 EVALUATION BOARD Dimensions (2.4”X x 2.2”Y x 0.5”Z) Board Number MPS IC Numbe r EVQ1530 MPQ1530 100 EFFICIENCY (%) 10 10 100 1000 LOAD CURRENT (mA) MP1530-EC02 Efficiency vs Load Current Step-Up Converter Only VMAIN = 13V VIN=3.3V VIN=5.0V

EVQ1530 – TRIPLE OUTPUT TFT BIAS CONVERTER EVQ1530 Rev. 1.1 www.MonolithicPower.com 2 3/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. TM EVALUATION BOARD SCHEMATIC EVQ1530 BILL OF MATERIALS Qty Ref Value Description Package Manufacturer P/N Distributor P/N 1 C1 10µF Ceramic Capacitor, 6.3V, X5R 1210 Panasonic: ECJ-4YB1A106K Digikey: PCC2170CT-ND

2 C2, C3 10nF Ceramic Capacitor, 50V, X7R 0805 Panasonic:

Digikey: PCC103BNCT-ND C4, C5, C7, C9, C10, C11, C12, C16 0.1µF Ceramic Capacitor, 50V, X7R 0805 Panasonic: ECJ-2YB1H104K Digikey: PCC1840CT-ND

1 C6 1µF Ceramic Capacitor, 25V, X7R 1206 Panasonic:

Digikey: PCC1893CT-ND

1 C8 10µF Ceramic Capacitor, 25V, X5R 1210 Panasonic:

Digikey: PCC2243CT-ND

1 C13 1µF Ceramic Capacitor, 50V, X7R 1210 TDK:

Digikey: 445-1430-1-ND

EVQ1530 – TRIPLE OUTPUT TFT BIAS CONVERTER EVQ1530 Rev. 1.1 www.MonolithicPower.com 3 3/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. TM EVQ1530 BILL OF MATERIALS (continued) Qty Ref Value Description Package Manufacturer P/N Distributor P/N C14, C15, C19, C20, C21 NS Not Stuffed

2 C17, C18 330pF Ceramic Capacitor, 50V,

NPO 0805 Panasonic: ECJ-2VC1H331J Digikey: PCC471CGCT-ND

1 D1 Schottky Diode, 40V, 1A SOD-

Diodes Inc: MBR140SF Digikey: MBR140SFT3G-ND

1 D2 NS Not Stuffed

3 D3, D4,

D5 Schottky Diodes, Dual, 40V, 200mA SOT23 Diodes Inc: BAS40-04-7 Digikey: BAS40-04DICT-ND 1 L1 4.7µH 2.26A, SMD, Unshielded Toko: 817FY-4R7M=P3

2 R1, R2 100k Ω Resistor, 5% 0805 Panasonic:

Digikey: P100KACT-ND 1 R3 6.8k Ω Resistor, 5% 0805 Panasonic: ERJ-6GEYJ682V Digikey: P6.8KACT-ND 1 R4 68.1k Ω Resistor, 1% 0805 Panasonic: ERJ-6ENF6812V Digikey: P68.1KCCT-ND

3 R5, R7,

R9 10kΩ Resistor, 5% 0805 Panasonic: ERJ-6GEYJ103V Digikey: P10KACT-ND 1 R6 93.1k Ω Resistor, 1% 0805 Panasonic: ERJ-6ENF9312V Digikey: P93.1KCCT-ND

1 R8 205k Ω Resistor, 1% 0805 Panasonic:

Digikey: P205KCCT-ND

2 R10, R11 0 Ω Resistor, 5% 0805 Panasonic:

Digikey: P0.0ACT-ND

1 U1 MPQ1530 QFN16 MPS:

EVQ1530 – TRIPLE OUTPUT TFT BIAS CONVERTER EVQ1530 Rev. 1.1 www.MonolithicPower.com 4 3/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. TM EVB TEST RESULTS Performance waveforms are tested on the evaluation board. VIN = 5V, VMAIN = 13V, IMAIN = 200mA, VGL = -8.5V, IGL = 10mA, VGH = 27V, IGH = 10mA, TA = +25°C, unless otherwise noted. VEN 5V/div. VMAIN 5V/div. VMAIN 5V/div. VGL 10V/div. VGH 10V/div. VGL 10V/div. VGH 10V/div. 10ms/div. Power-On Sequence VCT 1V/div. 10ms/div. Power-On Sequence 27.05 27.03 27.01 26.99 26.97 26.95 26.93 26.91 26.89 26.87

26.85 VGH (V)

IGH (mA) Positive Linear Regulator Load Regulation -8.465 -8.475 -8.485 -8.495 -8.505 -8.515 -8.525 -8.535 -8.545 -8.555 -8.565 VGL (V) 0 1 02 03 04 05 0 IGL (mA) Negative Linear Regulator Load Regulation 13.005 13.000 12.995 12.990 12.985 12.980 12.975 12.970

12.965 VMAIN (V)

IMAIN (mA) Step-Up Converter Load Regulation 100 EFFICIENCY (%) 1 10 100 1000 LOAD CURRENT (mA) Efficiency vs Load Current (Step-Up Converter Only) VIN=3.3V VMAIN=7.5V VIN=5V

EVQ1530 – TRIPLE OUTPUT TFT BIAS CONVERTER EVQ1530 Rev. 1.1 www.MonolithicPower.com 5 3/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. TM EVB TEST RESULTS (continued)、 Performance waveforms are tested on the evaluation board. VIN = 5V, VMAIN = 13V, IMAIN = 200mA, VGL = -8.5V, IGL = 10mA, VGH = 27V, IGH = 10mA, TA = +25°C, unless otherwise noted. 1.50 1.47 1.44 1.41 1.38 1.35 1.32 1.29 1.26 -50 0 50 100 150 1.256 1.254 1.252 1.250 1.248 1.246 1.244 1.242 1.240 1.238 -50 0 50 100 150 VSW 5V/div. IINDUCTOR 0.5A/div. IMAIN 200mA/div. VMAIN AC 100mV/div. VCT 1V/div. VMAIN 5V/div. VGL 10V/div. VGH 20V/div. VMAIN AC 50mV/div. VSW 10V/div. VIN 5V/div. VGH 20V/div. IL 2A/div.

EVQ1530 – TRIPLE OUTPUT TFT BIAS CONVERTER 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. EVQ15301 Rev. 1.1 www.MonolithicPower.com 7 3/23/2015 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2015 All Rights Reserved. TM QUICK START GUIDE The three output voltages of this board are set to +13V, +27V, and –8.5V. The board layout accommodates most commonly used inductors and output capacitors. 1. Attach the positive end of loads to the VMAIN, VGH and GND (for the negative output) pins, respectively. Attach negative ends of the loads to GND and VGL (for the negative output) pins. 2. Attach an input voltage 2.7V ≤ VIN ≤ 5.5V and input ground to the VIN and GND pins, respectively. 3. The demo board starts up automatically once V IN is applied due to the pull-up resistor R1. To disable the MPQ1530 connect the EN pin to ground. 4. During startup RDY will be left HIGH. Once the turn-on sequence is complete, this pin will be pulled LOW if all regulators exceed 80% of their specified voltages. After all regulators are turned-on, a fault in any regulator will cause RDY to go HIGH after approximately 15µs. If the fault persists for more than approximately 6ms (for CT=10nF), the entire chip will shut down. 5. To adjust the output voltages: Use a 10kΩ to 50kΩ for the low-side resistor of each voltage divider (i.e. R7, R9 and R5). VFB1 = VFB3 = VREF = 1.25V. For the step-up converter, determine the high-side resistor R6 using the equation: V VV6R 1FB 1FBMAIN Where VMAIN is the output voltage of the step-up converter. For the positive charge-pump, determine the high-side resistor R8 by the equation: V VV8R 3FB 3FBGH Where VGH is the output voltage of the positive linear regulator. Determine the number of positive charge pump stages (NPOS) by: DMAIN MAINDROPOUTGH POS V2V VVVN − −+= Use VDROPOUT = 1V and VD = 0.4V for Schottky diodes. For the negative charge-pump, determine the high-side resistor R4 by the equation: V V4R REF GL Where VGL is the output voltage of the negative linear regulator. Determine the number of negative charge pump stages (NNEG) by: DMAIN DROPOUTGL NEG V2V VVN − +−= 6. Use V DROPOUT = 0.3V and VD = 0.4V for Schottky diodes.