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STG4158：Low voltage 0.6 Ω typ single SPDT switch with break-before-make feature and 15 kV ESD protection

The STG4158 is a high-speed CMOS low-voltage single analog SPDT (single-pole dual throw) switch or 2:1 multiplexer/demultiplexer switch fabricated in silicon gate C²MOS technology. Designed to operate from 1.65 to 4.5 V, this device is ideal for portable applications.

It offers low ON-resistance (0.6 Ω) at V_CC= 4.5 V (typical T_A= 25 °C). The SEL input threshold is compatible with 1.8 V, and provides control to the switches.

The switch S1 is ON (connected to common port D) when the SEL input is held high and OFF (high-impedance state exists between the two ports) when SEL is held low. The switch S2 is ON (connected to common port D) when the SEL input is held low and OFF (high-impedance state exists between the two ports) when SEL is held high.

The SEL input has an integrated weak pull-down resistor to prevent the SEL signal from floating. For low-power consumption, the SEL input must be grounded.

The STG4158 features power-off and overvoltage protection, enabling the device to be isolated during voltage fault events.

Key Features

• Power-off and overvoltage protection
• Wide operating voltage range: VCC (opr) = 1.65 to 4.5 V
• Low ON-resistance VIN = 0 V:
  • RON = 0.85 Ω (max.) at VCC = 4.5 V
• Latch-up performance exceeds 300 mA JESD 17
• ESD performance tested on (D pin)
  • 8 kV IEC-61000-4-2 ESD, contact discharge
  • 15 kV IEC-61000-4-2 ESD, air discharge
• ESD performance test on all other pins
  • 3 kV human body model
  • 200 V machine model (IEC61340-3-2 level M2)
  • 1000 V charge device model (JESD22 C101)

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