Texas Instruments LMP8602/03 60V 电流检测放大器
TI LMP8602 和 LMP8603 60V 固定增益高精度电流检测放大器用于放大并过滤高共模电压中的小差分信号。这些 TI 器件在以 5V 电压工作时的输入共模电压范围为 -22V 至 +60V。在电压为 3.3V 时，输入共模电压范围为 -4V 至 +27V。TI LMP8602 和 LMP8603 固定增益高精度电流检测放大器属于 LMP® 系列产品，非常适合用于单双向电流检测应用。LMP8602 具有 50 倍的高精度增益，而 LMP8603 具有 100 倍的高精度增益。在多数目标应用中，这些高精度增益值可将 ADC 驱动为满量程值。LMP8602Q 和 LMP8603Q 结合了汽车市场所需增强的制造与支持工艺，包括缺陷检测方法。
特性
- Gain = 20x for LMP8601 and LMP8601-Q1
- Gain = 50x for LMP8602 and LMP8602-Q1
- Gain = 100x for LMP8603 and LMP8603-Q1
- 10µV/°C maximum TCVOS
- 90dB minimum CMRR
- 1mV maximum input offset voltage
- CMVR at VS = 3.3V: –4V to 27V
- CMVR at VS = 5V: –22V to 60V
- Single-supply bidirectional operation
- All minimum and maximum limits are 100% tested
- Q1 devices qualified for automotive applications
- Q1 devices ACE-Q100 qualified with the following results
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device temperature grade 0: –40°C to 150°C (LMP8601EDRQ1 only)
- Device HBM ESD classification level 2 (3A on inputs)
- Device CDM ESD classification level C6
- Device MM ESD classification level M2
应用
- High-side and low-side driver configuration current sensing
- Bidirectional current measurement
- Current loop to voltage conversion
- Automotive fuel injection control
- Transmission control
- Power steering
- Battery management systems
Functional Block Diagram
发布日期: 2012-03-05
| 更新日期: 2022-03-11