ZXCT1041 Datasheet | Zetex Semiconductors

Description The ZXCT1041 is a bidirectional precision highside current sense monitor. The output voltage is proportional to the differential input voltage. Direction of current flow is indicated by the Flag pin. The ZXCT1041 provides a fixed gain of 10 for applications where minimal sense voltage is required. The very low offset voltage enables a typical accuracy of 2% for sense voltages of only 10m V, giving better tolerances for small sense resistors necessary at higher currents. The wide input voltage range of 18V down to as low as 2.7V make it suitable for a range of applications. A minimum operating current of just 40␮A, bined with a SOT23-5 package makes this part suitable for portable battery equipment. Features - - - - - - Bidirectional high side measurement Output voltage scaling x10 2.7V to 20V high side voltage 35µA quiescent current 1% typical accuracy SOT23-5 package Applications - - - - Battery management Over current monitor Battery gas gauging Motor control Typical application circuit VIN+ RSENSE VIN- Pin connections Flag GND VOUT VSENSE- VSENSE+ VSENSEZXCT1041 GND VOUT 3 1 Flag VSENSE+ VOUT Ordering information Order code ZXCT1041E5TA Package SOT23-5 Partmark 1041 Reel size (inches) 7 Tape width (mm) 8 Quantity per reel 3000 Issue 1 - November 2006 © Zetex Semiconductors plc 2006 .zetex. Absolute maximum ratings Voltage on VSENSE- and VSENSE+ Voltage on all other pins Vsense [(VSENSE+) - (VSENSE-)] Operating temperature, TA Storage temperature Maximum junction temperature, TJ Package power dissipation -0.6 to 20V -0.6V to (VSENSE+/ VSENSE-) +0.6V +/-6V -40 to 125°C -55 to 150°C 150°C 300m W at TA = 25°C (De-rate to zero at 150°C) Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may reduce device reliability. Remended operating conditions Parameter VSENSE± Flag VSENSE VOUT TA mon-mode sense input range Current direction flag...