TSC1021BIPT STMicroelectronics

TSC1021 High-side current sense amplifier Datasheet - production data Related products See TSC103 for higher common-mode operating range (2.9 V to 70 V) Applications Automotive current monitoring Notebook computers Server power supplies Telecom equipment Industrial SMPS Current sharing LED current measurement Features Description Wide common-mode operating range The TSC1021 measures a small differential independent of supply: 2.8 V to 30 V voltage on a high-side shunt resistor and Wide common-mode survival range: -32 V to translates it into a ground-referenced output 60 V (reversed battery and load-dump voltage. conditions) The TSC1021 has been specifically designed for Maximum input offset voltage: automotive conditions: load-dump protection up 1.5 mV for T = 25 C amb to 60 V, reverse-battery protection up to -32 V, 2.3 mV for -40 C < T < 125 C amb ESD protection up to 4 kV and internal filtering for Maximum total output voltage error: EMI performance. 1.5 % for T = 25 C amb 2.5 % for -40 C < T < 125 C Input common-mode and power supply voltages amb are independent: the common-mode voltage can Maximum variation over temperature: range from 2.8 to 30 V in operating conditions dV /dT = 8 V/C os and up to 60 V in absolute maximum ratings dV /dT = 100 ppm/C out while the TSC1021 can be supplied by a 5 V Low current consumption: I max = 300 A CC independent supply line. -40 C to 125 C operating temperature range The TSC1021 is housed in a tiny TSSOP8 Internally fixed gain: 20 V/V, 50 V/V package and integrates a buffer that provides low EMI filtering impedance output to ease interfacing and avoid accuracy losses. The overall device current consumption is lower than 300 A. November 2015 DocID017857 Rev 4 1/17 www.st.com This is information on a product in full production. Contents TSC1021 Contents 1 Application diagram ........................................................................ 3 2 Pin configuration ............................................................................. 4 3 Absolute maximum ratings and operating conditions ................. 5 4 Electrical characteristics ................................................................ 6 5 Electrical characteristics curves: current sense amplifier ........... 8 6 Parameter definitions .................................................................... 11 6.1 Common mode rejection ratio (CMR) .............................................. 11 6.2 Supply voltage rejection ratio (SVR) ............................................... 11 6.3 Gain (Av) and input offset voltage (Vos) ......................................... 11 6.4 Output voltage drift versus temperature .......................................... 11 6.5 Output voltage accuracy ................................................................. 12 7 Package information ..................................................................... 13 7.1 TSSOP8 package information ......................................................... 14 8 Ordering information ..................................................................... 15 9 Revision history ............................................................................ 16 2/17 DocID017857 Rev 4