STMicroelectronics TSC20x

The TSC200, TSC201 and TSC202 are high-side current sense amplifiers which deliver an analog voltage output. They can sense current via a shunt resistor over a wide range of common-mode voltages, from -16 to +80 V, whatever the supply voltage is. They are available with an amplification gain of 20 V/V for TSC200, 50 V/V for TSC201, and 100 V/V for TSC202. The TSC200, TSC201 and TSC202 integrate an open-drain comparator with output latch function and an internal 0.6 V voltage reference connected to its input. The external resistor divider can then set the switching threshold. These devices fully operate over the broad supply voltage range of 2.7 to 18 V and over the automotive temperature range of -40 to +125 °C.

Key features

• AEC-Q100 qualified, wide common-mode voltage range from -16V to 80V
• Supply voltage range from 2.7V to 18V, 0.6V internal reference
• Internal open-drain comparator, latching capability on comparator
• Offset voltage is +3mV maximum at (V_CC = 12V, V_ICM = 12V, V_Sense = 100mV)
• Supply voltage rejection is 3µV/V typical at (V_OUT = 2V, V_IN+ = 18V)
• Input bias current is ±0.5µA typical at (V_CC = 12V, V_ICM = 12V, VSense = 100mV)
• Slew rate is 7V/µs typical at (V_CC = 12V, V_ICM = 12V, V_Sense = 100mV)
• Settling time is 2µs typical at (V_CC = 12V, V_ICM = 12V, V_Sense = 100mV)
• Voltage noise density is 55nV/√Hz typical at (f = 100KHz, V_CC = 12V, V_ICM = 12V, V_Sense = 100mV)
• Operating temperature range from -40°C to 125°C, miniSO8 package

Applications

• High-side current sensing
• Low-side current sensing
• Overcurrent protection
• Automotive current sensing
• Telecom equipment
• Test and measurement equipment
• Industrial process control

Video

Current sense amplifiers for industrial and automotive applications