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PI3A27518ZDEX

Diodes Incorporated · Analog Switches, Multiplexers · TQFN-24(4x4)

PI3A27518ZDEX from Diodes Incorporated, in a TQFN-24(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 COM1 passive Common signal path for channel 1, switched to NO1 or NC1 per the select truth table; analog signal range is 0 to VDD.
2 GND power_in Ground reference for the device.
3 COM2 passive Common signal path for channel 2, switched to NO2 or NC2 per the select truth table; analog signal range is 0 to VDD.
4 COM3 passive Common signal path for channel 3, switched to NO3 or NC3 per the select truth table; analog signal range is 0 to VDD.
5 VDD power_in Positive power supply; operating voltage is 1.65V to 3.6V.
6 COM4 passive Common signal path for channel 4, switched to NO4 or NC4 per the select truth table; analog signal range is 0 to VDD.
7 COM5 passive Common signal path for channel 5, switched to NO5 or NC5 per the select truth table; analog signal range is 0 to VDD.
8 NO1 passive Normally open signal path for channel 1; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
9 COM6 passive Common signal path for channel 6, switched to NO6 or NC6 per the select truth table; analog signal range is 0 to VDD.
10 NO2 passive Normally open data port for channel 2; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
11 IN2 input Select input 2 that chooses the NO or NC path for channels 4-6 together with IN1; control input must be held HIGH or LOW and must not float, with logic levels up to VDD.
12 NO3 passive Normally open signal path for channel 3; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
13 NO6 passive Normally open signal path for channel 6; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
14 NO4 passive Normally open signal path for channel 4; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
15 NO5 passive Normally open signal path for channel 5; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
16 NC5 unconnected Normally closed signal path for channel 5; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
17 EN input Enable input, active low; when driven HIGH all channels are OFF, and the control input must be held HIGH or LOW and must not float.
18 NC4 unconnected Normally closed signal path for channel 4; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
19 NC6 unconnected Normally closed signal path for channel 6; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
20 NC3 unconnected Normally closed signal path for channel 3; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
21 IN1 input Select input 1 that chooses the NO or NC path for channels 1-3 together with IN2; control input must be held HIGH or LOW and must not float, with logic levels up to VDD.
22 NC2 unconnected Normally closed signal path for channel 2; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
23 NC1 unconnected Normally closed signal path for channel 1; analog signal range is 0 to VDD and continuous current is limited to ±50mA.
24 N.C unconnected No connect; not internally bonded and left unconnected.
25 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TQFN-24(4x4)
Category Interface
Pins 25

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating Voltage VDD 1.65 3.6 V 4
Control Input Voltage VIN 0 V max = VDD 4
Switch Input Voltage VINPUT -0.3 V max = VDD 4
Operating Temperature TA -40 25 85 °C 4
Storage Temperature -65 150 °C 4
Ambient Temperature with Power Applied -40 85 °C 4
Supply Voltage VDD -0.5 4.6 V 4
Control Input Voltage VINx 0 4.6 V 4
DC Input Voltage VINPUT -0.5 4.6 V 4
Continuous Current NO_NC_COM -50 50 mA 4
ESD (HBM) 2.5 kV 4
ESD (CDM) 1.5 kV 4
Analog Signal Range VNO, VNC, VCOM 0 V -40°C to 85°C; max = VDD 4
On-Resistance RON 4.4 5.2 Ω +25°C; VDD = 3V, ICOM = -32mA, 0 ≤ VNO or VNC ≤ VDD, Test Circuit 1 4
On-Resistance RON 7.6 Ω -40°C to 85°C; VDD = 3V, ICOM = -32mA, 0 ≤ VNO or VNC ≤ VDD, Test Circuit 1 4
On-Resistance Match Between Channels ΔRON 0.3 0.7 Ω +25°C; VDD = 3V, ICOM = -32mA, VNO or VNC = 2.1V, Test Circuit 1 4
On-Resistance Match Between Channels ΔRON 0.8 Ω -40°C to 85°C; VDD = 3V, ICOM = -32mA, VNO or VNC = 2.1V, Test Circuit 1 4
On-Resistance Flatness RONF 0.95 2.1 Ω +25°C; VDD = 3.3V, ICOM = -32mA, VNO = 0.15V or VNC = 3.15V, Test Circuit 1 4
On-Resistance Flatness RONF 2.3 Ω -40°C to 85°C; VDD = 3.3V, ICOM = -32mA, VNO = 0.15V or VNC = 3.15V, Test Circuit 1 4
NC/NO Channel-Off Leakage Current IOFF (NO) or IOFF (NC) -2 2 μA -40°C to 85°C; VDD=3.6V, VNO or VNC = 3V & VCOM = 1V or VNO or VNC = 1V & VCOM = 3V 4
COM Channel-Off Leakage Current IOFF (COM) -2 2 μA -40°C to 85°C; VDD=3.6V, VNO or VNC = 3V & VCOM = 1V or VNO or VNC = 1V & VCOM = 3V 4
NC/NO POWER-Off Leakage Current IOFF (NO) or IOFF (NC) -12 12 μA -40°C to 85°C; VDD=0V, VNO or VNC = 3.6V & VCOM = 0V or VNO or VNC = 0V & VCOM = 3.6V 4
COM POWER-Off Leakage Current IOFF (COM) -12 12 μA -40°C to 85°C; VDD=0V, VNO or VNC = 3.6V & VCOM = 0V or VNO or VNC = 0V & VCOM = 3.6V 4
Channel-On Leakage Current (NO/NC) ION (NO) or ION (NC) -7 7 μA -40°C to 85°C; VDD=3.6V, VNO or VNC = 3V & VCOM = open or VNO or VNC = 1V & VCOM = open 4
Channel-On Leakage Current (COM) ION (COM) -7 7 μA -40°C to 85°C; VDD=3.6V, VNO or VNC = open & VCOM = 3V or VNO or VNC = open & VCOM = 1V 4
Input Logic High VIH 0.8 3.6 V -40°C to 85°C 5
Input Logic Low VIL 0 0.2 V -40°C to 85°C 5
IN Input Leakage Current IIN -2.5 2.5 μA -40°C to 85°C; VDD = 3.6V, VIN=0 or 3.6V 5
Turn-On Time TON 11.5 30 ns +25°C; VDD=3.3V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 5
Turn-On Time TON 30 ns -40°C to 85°C; VDD=3V to 3.6V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 5
Turn-Off Time TOFF 7.6 30 ns +25°C; VDD=3.3V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 5
Turn-Off Time TOFF 30 ns -40°C to 85°C; VDD=3V to 3.6V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 5
Break-Before-Make Delay TD 4 6.5 20 ns +25°C; VDD=3.3V, VNC=VNO=VDD, RL=50Ohm, CL=35pF, Test Circuit 3 5
Break-Before-Make Delay TD 20 ns -40°C to 85°C; VDD=3V to 3.6V, VNC=VNO=VDD, RL=50Ohm, CL=35pF, Test Circuit 3 5
Power Supply Current ICC 3 μA -40°C to 85°C; VDD=3.6V, VIN=0V or VDD, Switch ON or OFF 5
On-Resistance RON 7.1 14.4 Ω +25°C; VDD = 1.65V, ICOM = -32mA, 0 ≤ VNO or VNC ≤ VDD, Test Circuit 1 5
On-Resistance RON 16.3 Ω -40°C to 85°C; VDD = 1.65V, ICOM = -32mA, 0 ≤ VNO or VNC ≤ VDD, Test Circuit 1 5
On-Resistance Match Between Channels ΔRON 0.3 1 Ω +25°C; VDD = 1.65V, ICOM = -32mA, VNO or VNC = 1.5V, Test Circuit 1 5
On-Resistance Match Between Channels ΔRON 1.2 Ω -40°C to 85°C; VDD = 1.65V, ICOM = -32mA, VNO or VNC = 1.5V, Test Circuit 1 5
On-Resistance Flatness RONF 2.7 5.5 Ω +25°C; VDD = 1.65V, ICOM = -32mA, VNO = 0.15V or VNC = 1.5V, Test Circuit 1 5
On-Resistance Flatness RONF 7.3 Ω -40°C to 85°C; VDD = 1.65V, ICOM = -32mA, VNO = 0.15V or VNC = 1.5V, Test Circuit 1 5
NO/NC Channel-Off Leakage Current IOFF (NO) or IOFF (NC) -0.9 0.9 μA -40°C to 85°C; VDD=1.95V, VNO or VNC = 1.65V & VCOM = 0.3V or VNO or VNC = 0.3V & VCOM = 1.65V 5
COM Channel-Off Leakage Current IOFF (COM) -0.9 0.9 μA -40°C to 85°C; VDD=1.95V, VNO or VNC = 1.65V & VCOM = 0.3V or VNO or VNC = 0.3V & VCOM = 1.65V 5
NC/NO POWER-Off Leakage Current IOFF (NO) or IOFF (NC) -5 5 μA -40°C to 85°C; VDD=0V, VNO or VNC = 1.95V & VCOM = 0V or VNO or VNC = 0V & VCOM = 1.95V 6
COM POWER-Off Leakage Current IOFF (COM) -5 5 μA -40°C to 85°C; VDD=0V, VNO or VNC = 1.95V & VCOM = 0V or VNO or VNC = 0V & VCOM = 1.95V 6
Channel-On Leakage Current (NO/NC) ION (NO) or ION (NC) -5.2 5.2 μA -40°C to 85°C; VDD=1.95V, VNO or VNC = 1.65V & VCOM = open or VNO or VNC = 0.3V & VCOM = open 6
Channel-On Leakage Current (COM) ION (COM) -5.2 5.2 μA -40°C to 85°C; VDD=1.95V, VNO or VNC = open & VCOM = 1.65V or VNO or VNC = open & VCOM = 0.3V 6
Input Logic High VIH 0.8 1.95 V -40°C to 85°C 6
Input Logic Low VIL 0 0.2 V -40°C to 85°C 6
IN Input Leakage Current IIN -2.1 2.1 μA -40°C to 85°C; VDD = 1.95V, VIN=0 or 1.95V 6
Turn-On Time TON 18.9 45 ns +25°C; VDD=1.65V to 1.95V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 6
Turn-On Time TON 45 ns -40°C to 85°C; VDD=1.65V to 1.95V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 6
Turn-Off Time TOFF 14 26 ns +25°C; VDD=1.65V to 1.95V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 6
Turn-Off Time TOFF 26 ns -40°C to 85°C; VDD=1.65V to 1.95V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 2 6
Break-Before-Make Delay TD 5.3 11.8 40 ns +25°C; VDD=1.65V to 1.95V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 3 6
Break-Before-Make Delay TD 40 ns -40°C to 85°C; VDD=1.65V to 1.95V, VCOM=VDD, RL=50Ohm, CL=35pF, Test Circuit 3 6
Power Supply Current ICC 1.5 μA -40°C to 85°C; VDD=1.95V, VIN=0V or VDD, Switch ON or OFF 6

CAD (KiCad official)

  • Symbol: PI3A27518ZDEX
  • Footprint: Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm
  • 3D model: TQFN-24(4x4) (KiCad packages3D, STEP)
  • 3D model files: pi3a27518zdex-etched.step / pi3a27518zdex-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pi3a27518zdex.step / pi3a27518zdex.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (11 pp, sha256 4b281e860826464d, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF