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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 5OHM 16TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：5Ohm
- Channel-to-Channel Matching (ΔRon)：70mOhm
- Voltage - Supply, Single (V+)：1.5V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：35µs, 95ns
- -3db Bandwidth：1.2GHz
- Charge Injection：3.5pC
- Channel Capacitance (CS(off), CD(off))：4pF, 4pF
- Current - Leakage (IS(off)) (Max)：900nA (Typ)
- Crosstalk：-90dB @ 100kHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：16-TSSOP
- Number of Circuits：1
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The SN3257QPWRQ1 is an automotive-grade analog switch featuring four independent single-pole double-throw (SPDT) channels. It operates with a supply voltage range of 1.5 V to 5.5 V and supports 1.8-V logic control inputs. The device provides low on-resistance of 5 Ohms maximum and high bandwidth up to 900 MHz. It is qualified to AEC-Q100 standards for automotive applications, ensuring reliability under harsh conditions. The component is housed in a 16-pin TSSOP package and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards for extended temperature operation
- Low on-resistance specification ensuring minimal signal attenuation across channels
- High bandwidth capability supporting wideband signal transmission requirements
- Compatible with 1.8-V logic control interfaces for modern system integration
Applications
- Automotive infotainment systems requiring signal routing
- Telematics units needing multiplexed data paths
- Body control modules utilizing low-voltage logic switching
Procurement Notes
Verify the specific ordering suffix to confirm the exact packaging configuration, such as reel or cut tape options, as these affect handling procedures. Ensure the component meets the required AEC-Q100 grade specifications for the target automotive application environment. Cross-reference the datasheet revision date to confirm compatibility with current design constraints and regulatory standards.
Selection Notes
Select this component when designing circuits that require multiple SPDT switches controlled by low-voltage logic signals. The 1.5-V to 5.5-V supply range allows flexibility in power domain integration. Consider the 5-Ohm on-resistance limit for signal integrity analysis. The TSSOP-16 package offers a compact footprint suitable for space-constrained automotive PCB layouts.
Part Context
This part belongs to the SN3257 family of analog switches from Texas Instruments. It shares functional similarities with other automotive-grade switches like the SN3257QDYYRQ1 but differs in package type. The Q1 suffix indicates automotive qualification, distinguishing it from standard commercial variants. It serves as a key building block for signal management in vehicle electronics.
Replacement Considerations
The SN3257QDYYRQ1 is a verified alternative offering identical electrical performance in a different SOT-23-16 package. Designers must verify pinout compatibility and thermal characteristics when substituting between TSSOP and SOT-23 form factors.
