SLUU180B January   2022  – February 2022 TPS40070 , TPS40071

 

  1.   Trademarks
  2. 1Introduction
  3. 2Description
  4. 3Schematic
    1. 3.1 Output Filter Components
    2. 3.2 MOSFET Selection
    3. 3.3 Frequency Feedforward Resistor Selection
    4. 3.4 Output Voltage Setpoint
    5. 3.5 Short Circuit Protection Resistor Selection
    6. 3.6 Miscellaneous Parts
    7. 3.7 Control Loop Compensation
  5. 4Test Setup
  6. 5Results
    1. 5.1 Control Loop Characteristics
  7. 6Assembly Drawing and PCB Layout
  8. 7List of Materials
  9. 8Reference
  10. 9Revision History

7 List of Materials

Table 7-1 Evaluation Module List of Materials
REFERENCE QTY DESCRIPTION MANUFACTURER PARTNUMBER
C1 1 Capacitor,aluminum, 470 mF, 25 V, 20%, 0.457 × 0.406 Panasonic EEVFK1E471P
C12, C14 2 Capacitor,ceramic, 22 mF, 16 V, X5R, 20%, 1812 TDK C4532X5R1C226MT
C13 1 Capacitor,ceramic, 2.2 nF, 50 V, X7R, 10%, 805 Vishay VJ0805Y222KXAAT
C15, C16, C17 3 Capacitor,ceramic, 47 mF, 6.3 V, X5R, 20%, 1812 TDK C4532X5R0J47MT
C2, C8, C10, C11, C18 5 Capacitor,ceramic, 0.1 mF, 25 V, X7R, 10%, 805 Vishay VJ0805Y104KXXAT
C3 1 Capacitor,ceramic, 10 nF, 50 V, X7R, 10%, 805 Vishay VJ0805Y103KXAAT
C4 1 Capacitor,ceramic, 470 pF, 50 V, X7R, 10%, 805 Vishay VJ0805Y471KXAAT
C5, C6 2 Capacitor,ceramic, 8200 pF, 50 V, X7R, 10%, 805 Vishay VJ0805Y822KXAAT
C7 1 Capacitor,ceramic, 10 pF, 50 V, NPO, 10%, 805 Vishay VJ0805A100KXAAT
C9 1 Capacitor,ceramic, 1 mF, 16 V, X5R, 10%, 805 TDK C2012X5R1C105KT
D1 1 Diode, schottky, 200 mA, 30 V, SOT23 Vishay− Liteon BAT54
J1, J2 2 Terminal block, 2 pin, 15 A, 5.1 mm, 0.40 × 0.35 OST ED1609
L1 1 Inductor, SMT, 1.6 mH, 14.5 A, 2.5 mW, 0.515 × 0.516 COEV DXM1306−1R6
Q1, Q2 2 MOSFET, N-channel, 30 V, 18 A, 8.0 mW, PWRPAK S0−8 Vishay− Siliconix Si7860DP
R1 1 Resistor,chip, 10 kΩ, 1/10 W, 1%, 805 Std Std
R10 1 Resistor,chip, 330 kΩ, 1/10 W, 5%, 805 Std Std
R12 1 Resistor, chip, 20 Ω, 1/10 W, 5%, 805 Std Std
R2 1 Resistor,chip, 165 kΩ, 1/10 W, 1%, 805 Std Std
R3 1 Resistor,chip, 16.2 kΩ, 1/10 W, 1%, 805 Std Std
R4, R11 2 Resistor,chip, 0 Ω, 1/10 W, 5%, 805 Std Std
R5 1 Resistor,chip, 1.87 kΩ, 1/10 W, 1%, 805 Std Std
R6 1 Resistor,chip, 75 kΩ, 1/10 W, 1%, 805 Std Std
R7 1 Resistor, chip, 25.5 kΩ, 1/10 W, 1%, 805 Std Std
R8 1 Resistor, chip, 100 Ω, 1/10 W, 1%, 805 Std Std
R9 1 Resistor, chip, 1.4 kΩ, 1/10 W, 1%, 805 Std Std
TP1, TP3, TP4, TP5, TP6, TP7, TP9, TP11 8 Jack, test point, red Farnell 240−345
TP2, TP10 2 Jack, test point, black Farnell 240−333
TP8 1 Adaptor, 3.5-mm probe clip (or 131−5031−00), 0.2 Tektronix 131−4244−00
U1 1 IC, PWP16 Texas Instruments TPS40071PWP
— 1 PCB, 2.5 inch × 2 inch × 0.062 inch Std HPA038