計算工具
HV-MONITORING-RANGE-ACCURACY-CALC — TPS4141-Q1 Design Calculator
Spreadsheet calculator to help determine High Voltage measurement range and accuracy based on customer requirements.
TPS4141-Q1
- Qualified for automotive applications
- AEC-Q100 grade 1: –40°C to 125°C ambient operating temperature
- Integrated high-voltage resistor divider
- 30MΩ total resistance, precision matched divider
- No exposed high-impedance nodes improves measurement integrity from board contaminants
- Integrated high-voltage disconnect switch
- 1200V standoff voltage, uni-directional blocking
- <1.5µA leakage at TA = 105°C
- High accuracy divider and precision buffer amplifier
- Buffered output for easy interfacing to analog-to-digital converters
- Dynamically selectable gain settings to maximize accuracy across high-voltage sensing range
- Typical gain error ± 0.15%
- Maximum input offset error ± 220mV
- Support for uni-directional and bi-directional voltage sensing up to ±1200V
- Dynamic switching between uni-directional and bi-directional voltage sensing operation
- Low supply current
- 5mA ON state current
- 5.5µA OFF state current
- SOIC (DWQ-11) package
- Creepage and clearance ≥8mm from high-voltage sensing pin to all other pins
The TPS4141-Q1 is a high-voltage, precision matched resistor divider with an integrated programmable-gain amplifier. The TPS4141-Q1 also integrates a high-voltage switch to allow for connecting or disconnecting the high-voltage sense pin. The device is designed for automotive and industrial applications where accurate, high-voltage measurements are required.
The TPS4141-Q1 programmable-gain amplifier supports four divider ratios using DIV0 and DIV1 inputs. DIV0 and DIV1 can be set to fixed divider ratios and may also be changed dynamically while in operation. This allows for matching the amplifier output (AOUT) to the full-scale input voltage of the analog-to-digital signal chain, improving accuracy over the entire voltage sensing range of interest.
The TPS4141-Q1 supports uni-directional or bi-directional voltage measurement. Bi-directional voltage measurement is supported by supplying an external precision voltage reference from REF to HVGND. Switching between bi-directional and uni-directional voltage sensing during operation is possible using DIV0 and DIV1. Connecting REF to HVGND provides uni-directional voltage sensing only.
The TPS4141-Q1 integrates a high-voltage switch with a standoff voltage greater than 1200V from the high-voltage sense pin (HV) to ground (HVGND). The switch provides uni-directional current blocking from HV to HVGND when disconnected.
技術文件
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檢視所有 2 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS4141-Q1 Automotive 1200V Configurable Precision Resistor Divider With Integrated Switch datasheet (Rev. A) | PDF | HTML | 2025年 5月 30日 |
| Application note | Using Integrated Designs to Optimize High-Voltage Measurement | PDF | HTML | 2025年 8月 4日 |
設計與開發
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開發板
TPS4141Q1EVM — TPS4141-Q1 評估模組
The TPS4141-Q1 evaluation module (EVM) contains multiple test points and jumpers to fully evaluate the performance and functionality of the TPS4141-Q1 device. The evaluation module contains everything needed to test and assess the TPS4141-Q1 before designing into part of a greater application's (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (DWQ) | 11 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。