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概述
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开发资源
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应用
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订购明细
概述
The TPA135 is a unidirectional current-sense amplifier which has a very wide input common-mode voltage range from −4 V to 80 V with a high bandwidth of 1 MHz. The enhanced PWM rejection allows the TPA135 to accommodate the solenoids and motors applications. The device features high precision accuracy specifications of Vos and the gain error, which makes it ideal for small signal conditioning. Its high bandwidth makes it ideal not only for DC current measurement, but also for high-speed applications like fast overcurrent protection.
Fixed gains are optional: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The device offers breakthrough performance throughout the temperature range of −40°C to +125°C. The device is offered SOT23-5 package.
Many systems, including motors and solenoids, employ PWM signals for modulation or control purposes. However, these PWM signals generate fast common-mode voltage transitions that oscillate between high voltage and ground potential. This can pose a challenge for the current measurement circuitry, as it may result in undesirable output voltage fluctuations. To address this issue, the device incorporates an advanced PWM rejection feature. This feature minimizes the impact of common-mode voltage transitions and ensures stable and reliable output voltage.
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Status
Production
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Rating
Industrial
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Features
80V Vcm, Uni-directional, Current-Sense Amplifier with PWM Rejection
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VCM Min
-4
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VCM Max
80
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Vos drift Typ (μV/c)
0.15
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Input Direction
Uni-dir
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CMRR (Min) (dB)
128
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BW (kHz)
1000 at G=20, 50, 100, 200; 500 at G=500;
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Gain Option
G = 20, 50, 100, 200, 500
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GE Max at full temp range (%)
±0.35
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GE Drift, max (ppm/c)
12
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Vos max (μV)
±140
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Ib (Typ) (nA)
1000
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PWM Rejection
YES
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VS Min
3
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VS Max
5.5
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Iq (Max) (μA)
4000
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Number of Channels
1
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Comparator
0
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Package
SOT23-5
开发资源
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文档
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显示筛选器隐藏筛选器文档
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数据手册
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选型手册
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应用笔记
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技术文章
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产品简介
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用户指南
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测试报告
- 文档名称
- 类型
- 语言
- 日期
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数据手册英文04/23/2025
Unidirectional, Current-Sense Amplifier with PWM Rejection
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技术文章英文01/19/2024
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技术文章英文01/19/2024
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选型手册中文01/19/2024
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应用
• Current Sensing (High-Side and Low-Side)
• Power Management
• Solenoid and Valve Control
• Motor Control
订购明细
| Order Part Number | Buy | Rating | Feature | Status | 1ku Price | Release Date | Package | Lead time (week) | MSL | Packing | MPQ | CPQ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPA135B4-S5TR-S | Industrial Grade | / | Production | / | 2024-12-13 | SOT23-5 | 24 | MSL3 | T&R | 3000 | 120000 | |
| TPA135A3-S5TR-S | Industrial Grade | / | Production | / | 2024-12-13 | SOT23-5 | 17 | MSL3 | T&R | 3000 | 120000 | |
| TPA135B3-S5TR-S | Industrial Grade | / | Production | / | 2025-01-14 | SOT23-5 | 17 | MSL3 | T&R | 3000 | 120000 | |
| TPA135A4-S5TR-S | Industrial Grade | / | Production | / | 2024-12-13 | SOT23-5 | 24 | MSL3 | T&R | 3000 | 120000 | |
| TPA135B2-S5TR-S | Industrial Grade | / | Production | / | 2024-12-13 | SOT23-5 | 24 | MSL3 | T&R | 3000 | 120000 | |
| TPA135A2-S5TR-S | Industrial Grade | / | Production | / | 2024-12-13 | SOT23-5 | 17 | MSL3 | T&R | 3000 | 120000 |
