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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 TPA191Q series of zero-drift, bi-directional current sense amplifiers can sense voltage drops across shunts at common-mode voltages from −0.3 V to 36 V, independent of the supply voltage. Multiple fixed gains are available: 20 V/V, 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V, and 1000 V/V. The integrated gain resistor network is highly matched, which minimizes gain errors and reduces the temperature drift. The low offset of the zero-drift architecture extends the range of current sensing, it allows for smaller sense resistors with lower power loss, while still ensuring accurate current measurements.
The TPA191Q devices operate from a single 2.7-V to 36-V power supply, drawing a typical 80-μA supply current. All versions are specified from −40°C 125°C, and offered in the SOT363 package.
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Status
Production
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Rating
Automotive
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Feature
Automotive Bi-Directional Current Sense Amplifier
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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)
93
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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)
255
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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
SC70-6
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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选型手册中文03/20/2024
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数据手册英文11/05/2024
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPA191A2Q-SC6R-S | Automotive Grade | / | Production | / | 2024-11-06 | SOT363 | 24 | MSL1 | T&R | 3000 | 120000 | |
| TPA191A4Q-SC6R-S | Automotive Grade | / | Production | / | 2024-11-06 | SOT363 | 24 | MSL1 | T&R | 3000 | 120000 |
