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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 TPA191 is a series of zero-drift, bi-directional current sense amplifiers that can sense voltage drops across shunts at common-mode voltages from −0.3 V to 36 V, independent of the supply voltage. Five fixed gains are available: 20 V/V, 50 V/V, 75 V/V, 100 V/V, and 200 V/V. The integration-matched gain resistor network minimizes gain errors and reduces the temperature drift. The low offset of the zero-drift architecture enables current sensing with the maximum drops across the shunt as low as 10 mV full-scale.
The TPA191 series operates from a single 2.7-V to 36-V power supply, while drawing 80-μA supply current (typical). All versions are specified from −40°C 125°C, and offered in the SOT363 (SC70-6) package.
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Status
Production
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Rating
Industrial
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Feature
/
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VCM Min
-0.3
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VCM Max
36
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Vos drift Typ (μV/c)
0.2
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Input Direction
Bi-dir
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CMRR Min (dB)
95
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BW (kHz)
150 at G=20;80 at G=50;50 at G=75;30 at G=100;15 at G=200
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Gain Option
G = 50, 100, 200
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GE Max at full temp range (%)
1
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GE Drift, max (ppm/c)
10
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Vos max (μV)
50
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Ib Typ (nA)
22000
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PWM Rejection
NO
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VS Min
2.7
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VS Max
36
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Iq Max (μA)
115
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Channel
1
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Comparator
0
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Package
SOT363
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03/26/2024
Zero-Drift, Bi-Directional Current Sense Amplifier
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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/Low-Side)
• Battery Charger
• Power Management
• Cell Phone Charger
• Electrical Cigarette
• Wireless Charger
• Telecom Equipment
订购明细
| Order Part Number | Buy | Rating | Feature | Status | 1ku Price | Release Date | Package | Lead time (week) | MSL | Packing | MPQ | CPQ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPA191A2-SC6R | Industrial Grade | / | Production | / | 2023-06-19 | SOT363 | 10 | MSL1 | T&R | 3000 | 120000 | |
| TPA191A4-SC6R | Industrial Grade | / | Production | / | 2023-08-15 | SOT363 | 10 | MSL1 | T&R | 3000 | 120000 | |
| TPA191A5-SC6R | Industrial Grade | / | Production | / | 2023-08-15 | SOT363 | 10 | MSL1 | T&R | 3000 | 120000 | |
| TPA191A3-SC6R | Industrial Grade | / | Production | / | 2024-11-19 | SOT363 | 24 | MSL1 | T&R | 3000 | 120000 | |
| TPA191A7-SC6R | Industrial Grade | / | Production | / | 2024-11-25 | SOT363 | 24 | MSL1 | T&R | 3000 | 120000 |
