Power multiplexer circuit

In this reference design, a Power multiplexer circuit with 2 input and 1 output is implemented on a small PCB. MOSFET gate driver ICs, eFuse ICs, zener diodes and small package MOSFETs selected from Toshiba's diverse lineup are used create ideal diode like characteristics with BBM and MBB switching.

PCB photo example of Power multiplexer circuit
PCB photo example
CUHZ30V TPHR6503PL1 TPHR6503PL1 DSF01S30SL SSM3K72CTC TCR1HF33B TCK421G DSF01S30S TC7WZ04FK TPHR6503PL1 TPHR6503PL1 CUHZ6V8 SSM3K15ACTC TCK425G

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Features

  • 2 × 2 cm small board mounted, 2 input 1 output power multiplexer circuit
  • Lineup of 5 types of reference circuits with input voltage from 5 V to 24 V and output current up to 5 A.
  • Supports switching of various power supply systems such as USB power delivery, fast charging, and wireless power supply
  • MBB (Make-Before-Break), BBM (Break-Before-Make) operation switchable
  • Ideal diode characteristics

Description

Circuit Dual input and single output power source multiplexer circuit
Input VINA/ Input VINB 5 V/20 V, 5 V/12 V, 9 V/20 V, 5 V/12 V, 12 V/24 V
Output current (Max.) 3 A to 5 A
MBB Wave form example of Power multiplexer circuit
MBB Wave form example

Design Documents

Materials for designers, such as an overview of circuit operation and explanations of design considerations. Please click on each tab to view the contents.

Design Data

Provides circuit data that can be loaded into EDA tools, PCB layout data, and data used in PCB manufacturing. Available in formats from multiple tool vendors. You can freely edit it with your preferred tool.

Used Toshiba Items

Part Number Device Category Portion Usage Description
Zener diode Module board 12 V Zener Diode, SOD-323HE(US2H)
Zener diode Module board 16 V Zener Diode, SOD-323HE(US2H)
Zener diode Module board 30 V Zener Diode, SOD-323HE(US2H)
Zener diode Module board 6.8 V Zener Diode, SOD-323HE(US2H)
Small-signal Schottky barrier diode Module board 30 V/0.1 A Schottky Barrier Diode, SOD-962(SL2)
Small-signal MOSFET Module board N-ch MOSFET, 30 V, 0.1 A, 3.6 Ω@4V, CST3C
Small-signal MOSFET Module board N-ch MOSFET, 60 V, 0.15 A, 3.9 Ω@10V, CST3C
Small Low ON resistance MOSFETs Module board N-ch MOSFET, 30 V, 15 A, 0.0089 Ω@10V, SOT-1220(UDFN6B)
Comparator (CMOS) Module board Single Comparator (CMOS), 5.5 V, +/-2.75 V, MP6C
L-MOS SHS series (TC74LCX-equivalent) Module board One-Gate Logic(L-MOS), Schmitt Inverter, SOT-363(US6)
L-MOS SHS series (TC74LCX-equivalent) Module board One-Gate Logic(L-MOS), Inverter, SOT-765(US8)
Load switch IC Module board 2.7 to 28 V External MOSFET Driver IC, WCSP6G
Load switch IC Module board 2.7 to 28 V External MOSFET Driver IC, WCSP6G
Load switch IC Module board 2.7 to 28 V External MOSFET Driver IC, WCSP6G
Load switch IC Module board 2.7 to 28 V External MOSFET Driver IC, WCSP6G
Load switch IC Module board 2.7 to 28 V External MOSFET Driver IC, WCSP6G
Load switch IC Module board 2.7 to 28 V External MOSFET Driver IC, WCSP6G
eFuse IC Module board 4.4 to 13.2 V/3.65 A eFuse IC, 53 mΩ, WSON10
eFuse IC Module board 4.4 to 18 V/5.0 A eFuse IC, 28 mΩ, WSON10B
Power MOSFET (N-ch single VDSS≤30V) Module board N-ch MOSFET, 30 V, 0.00065 Ω@10V, SOP Advance(N), U-MOSⅨ-H
Power MOSFET (N-ch single 30V<VDSS≤60V) Module board/ Base board N-ch MOSFET, 40 V, 0.00085 Ω@10V, SOP Advance(N), U-MOSⅨ-H
Power MOSFET (N-ch single VDSS≤30V) Module board N-ch MOSFET, 30 V, 0.0016 Ω@10V, TSON Advance, U-MOSⅨ-H
Load switch IC Base board 2.7 to 28 V External MOSFET Driver IC, WCSP6E
L-MOS SHS series (TC74LCX-equivalent) Base board One-Gate Logic(L-MOS), Schmitt Buffer, SOT-363(US6)
74HC CMOS logic IC series Base board Dual Monostable Multivibrator, SOIC16
Point regulator (single output) Base board 200 mA Fixed Output LDO Regulator, 4.8 V, SOT-25(SMV)
Bias resistor built-in transistor (BRT) Base board NPN Bias Resistor Built-in Transistors (BRT), 1 kΩ/10 kΩ, SOT-723(VESM)
Bias resistor built-in transistor (BRT) Base board PNP Bias Resistor Built-in Transistors (BRT), 10 kΩ/10 kΩ, SOT-723(VESM)
Switching diode Base board 80 V/0.1 A Switching diode, SOD-523(ESC)
Low Dropout (LDO) Linear Voltage Regulator Module board High voltage, Low quiescent current, Fast load transient CMOS Linear Regulator
Low Dropout (LDO) Linear Voltage Regulator Module board High voltage, Low quiescent current, Fast load transient CMOS Linear Regulator

Related Documents

We provide materials useful for designing and considering similar circuits, such as application notes for installed products. Please click on each tab to view the contents.

Related Reference Design

Power Multiplexer Circuit Using Common-Drain MOSFET

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