TS5A63157 - 10-Ohm SPDT Analog Switch 1.65-5.5V | TI
料号： TS5A63157 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.34 | $0.34 |
| 10 | $0.29 | $2.90 |
| 100 | $0.23 | $23.00 |
| 500 | $0.19 | $95.00 |
| 1,000 | $0.16 | $160.00 |
TS5A63157 概述
An analog switch is a type of signal-routing IC in the broader family of multiplexers and switches within the semiconductor component hierarchy. Unlike a relay or mechanical switch, an analog switch uses CMOS transmission gates to route signals with low distortion, fast switching times, and no moving parts, making it fundamental to signal-chain design in portable and battery-powered systems.
Key features include overshoot and undershoot voltage protection: the device senses voltage events at the I/Os and responds by preventing voltage differentials from developing and turning the switch on. It also provides isolation in powered-off mode (leakage specified at 0 when V+ = 0), break-before-make switching, 5-V tolerant control inputs, low charge injection, and excellent on-state resistance flatness.
Technically, the TS5A63157 uses a CMOS switch architecture with integrated protection circuitry, allowing it to survive I/O faults that would damage unprotected switches. The powered-off isolation makes it ideal for hot-swap and battery-powered systems where rails may be sequenced or removed while signal lines remain connected.
Typical applications include battery-powered portable devices, audio signal routing, hot-swap USB and peripheral switching, and multiplexing sensor or test signals in instrumentation. Priced at roughly $0.34 in single units as of 2026-08-30 per distributor data, it is also cost-effective for high-volume designs.
Design tip: ensure the control input logic level is compatible with the V+ rail; control inputs are 5-V tolerant regardless of supply, and the break-before-make timing prevents momentary shorting of the two switch paths during transitions.
直接替换替代料： TS5A63157 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TS5A63157 （相同外形与封装尺寸） ——差异在于 Package, Bandwidth, Configuration, ESD Protection, Function.
快速对比工具——选择替代料号进行并排对比：
SN74LVC1G3157DCKR
✅ 直接替换✓ 有现货
$0.22 / 个
查看数据手册 →TS5A3159DCKR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TS5A2053
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.2 / 个
查看数据手册 →74LVC1G3157
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PI5A3157
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TS5A63157 最大额定值与电气特性
| 功能 | SPDT analog switch / 2:1 multiplexer-demultiplexer |
| Supply Voltage Range | 1.65 V to 5.5 V |
| On-State Resistance (RON) | 10 to 12 ohm |
| 通道数 | 1 circuit, 2:1 |
| Signal Type | Analog and digital |
| Overshoot/Undershoot Protection | Yes, senses and isolates I/O fault events |
| Powered-Off Isolation | Yes (leakage specified at 0 when V+ = 0) |
| Switching Scheme | Break-before-make |
| Control Input Tolerance | 5-V tolerant |
| Charge Injection | Low |
| RON Flatness | Excellent |
| 封装 | SC-70-6 (SOT, DCK) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
TS5A63157 引脚配置
| 引脚 1 | NO — Normally-open switch terminal (throw) |
| 引脚 2 | GND — Ground |
| 引脚 3 | NC — Normally-closed switch terminal (throw) |
| 引脚 4 | COM — Common I/O of the SPDT switch |
| 引脚 5 | IN — Logic control input (5-V tolerant), selects NO or NC |
| 引脚 6 | V+ — Power supply, 1.65 V to 5.5 V |
典型应用
TS5A63157 适用于 6 应用s: Battery-Powered Portable Devices, Audio Signal Routing, Hot-Swap USB and Peripheral Switching, Sensor Multiplexing in Instrumentation, Industrial Control Signal Selection, Automotive Body and Infotainment Signal Switching.
Battery-Powered Portable Devices
The TS5A63157 operates from 1.65 V, allowing direct connection to low-voltage rails in single-cell and coin-cell systems, and its powered-off isolation (0 leakage at V+ = 0) keeps signal lines safely disconnected when the rail is removed. Used to switch headphone, sensor, or antenna paths, its 10-12 ohm RON adds minimal insertion loss while CMOS gates contribute negligible distortion. Placed between the battery rail and the signal COM node with 100 nF local bypass, the break-before-make switching prevents audible pops when routing audio in portable media players and wearables.
推荐
Audio Signal Routing
With 10-12 ohm on-resistance, excellent RON flatness, and low charge injection, the TS5A63157 switches audio signals with minimal gain error and distortion. Its overshoot/undershoot protection tolerates hot-plug events on headphone jacks, while powered-off isolation mutes the signal path when the device is unpowered. Placed at the DAC output to select between internal speaker and headphone amplifiers, break-before-make timing eliminates source-to-source shorts during transitions, avoiding clicks and pops in mobile audio and Bluetooth speaker designs.
推荐
Hot-Swap USB and Peripheral Switching
The TS5A63157's overshoot and undershoot protection senses fault events at the I/Os and prevents damaging voltage differentials, making it well suited to hot-swappable USB data-line and peripheral signal switching. When the host is unpowered, powered-off isolation (0 leakage at V+ = 0) guarantees the bus remains undisturbed. Inserted in D+/D- routing to select between two peripherals, the 10 ohm RON maintains signal integrity for full-speed traffic, and 5-V tolerant control inputs allow direct connection to USB VBUS-derived logic without level shifting.
推荐
Sensor Multiplexing in Instrumentation
In test and measurement front ends, the TS5A63157 multiplexes two sensor outputs into one ADC or amplifier input, saving converter channels and board area in the 2 mm x 2.1 mm SC-70 package. Low charge injection minimizes voltage transients when switching capacitive sensor nodes, and the 10 ohm RON contributes negligible error versus typical sensor source impedances. Break-before-make switching prevents cross-connection between sensor channels, and powered-off isolation ensures measurement lines float cleanly when the instrument is shut down.
推荐
Industrial Control Signal Selection
The 5-V tolerant control inputs and 1.65-5.5 V operation let the TS5A63157 interface directly with industrial 3.3 V and 5 V logic domains without translation circuitry. It selects between redundant sensor or feedback signals feeding controllers, and the overshoot/undershoot protection absorbs transients common on factory-floor wiring. Its SC-70 footprint suits dense I/O cards, and the active lifecycle status and multi-source availability make it a low-risk choice for long-lifetime industrial builds requiring stable signal routing.
推荐
Automotive Body and Infotainment Signal Switching
For non-critical automotive infotainment routing such as microphone and auxiliary-audio source selection, the TS5A63157's transient protection on the I/Os helps tolerate load-dump-adjacent events on connectorized lines, and its wide 1.65-5.5 V supply matches both legacy 5 V and modern 3.3 V rails. Low RON preserves audio fidelity, while break-before-make switching avoids shorting two active sources during source transitions. For safety-relevant paths, pair with TI's Q1-qualified TS5A3159QDBVRQ1 variant already supported on XAIPART.
推荐
推荐产品汇总
工程参考数据： TS5A63157 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | SN74LVC1G3157DCKR | TS5A3159DCKR | 74LVC1G3157 |
|---|---|---|---|---|
| Package | SC-70-6 (DCK) | SC-70-6 (DCK) - same | SC-70-6 (DCK) - same | SC-70-6 (SOT-363) - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Supply Voltage | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V |
| Configuration | SPDT (2:1) | SPDT (2:1) | SPDT (2:1) | SPDT (2:1) |
| Overshoot/Undershoot Protection | Yes | No | No | No |
| Powered-Off Isolation | Yes (0 leakage at V+ = 0) | No | No | No |
| Break-Before-Make | Yes | Yes | Yes | Yes |
关键差异点
- Overshoot/undershoot I/O protection （对比 SN74LVC1G3157DCKR)
- Specified powered-off isolation （对比 TS5A3159DCKR)
- Trade-off: RON vs protection （对比 PI5A3157)
设计说明
Route the COM, NO, and NC traces as short as possible and keep the switch close to the connector or source being muxed. The 10 ohm RON forms an RC filter with trace and load capacitance; at high-speed digital signals keep total load capacitance below ~50 pF to preserve edge rates. Ground the unused NC/NO pin through the source impedance, not left floating, to prevent crosstalk into the active path.
The TS5A63157's protection circuitry senses overshoot/undershoot at the I/Os, but the device is not a substitute for dedicated TVS protection on externally exposed lines such as USB or headphone jacks - pair it with a TVS/ESD array (e.g., TPD4S012) at the connector. Do not drive the IN pin beyond 5.5 V; although 5-V tolerant, it is not voltage-translator-rated above 5 V.
Place a 100 nF ceramic bypass capacitor within 2 mm of the V+ pin. For audio paths, connect the SC-70 thermal relief to a quiet analog ground to avoid coupling switching noise into the signal. The break-before-make timing means there is a brief interval where COM is high-impedance; if the downstream node is high impedance, add a bleed resistor to define its potential during transitions.
合规信息
RoHS compliant per TI product page. Not AEC-Q100 qualified - for automotive use consider Q1-qualified variants such as TS5A3159QDBVRQ1.
