ZXCT1051 Datasheet | Zetex Semiconductors

Description The ZXCT1051 is a wide input range current monitor, which operates over a range of input voltages from ground up to VCC-2V. As a result the ZXCT1051 can be used on the high or low side of the load. The very low offset voltage enables a typical accuracy of 1% for sense voltages of only 30m V, giving better tolerances for small sense resistors necessary at higher currents. The ZXCT1051 provides a fixed gain of 10 thereby removing the need for an additional resistor. Features - - - - .. Applications - - - - - - Power supply DC motor and solenoid control Battery management Over current monitor Power management Short circuit detection Accurate down to end current sensing Output voltage scaling x10 0 to VCC-2V sense input range 2.7 to 20V supply range 50 µA quiescent current 1% typical accuracy SOT23-5 package - - - Pin connections Typical application circuit VSENSE+ RSENSE VSENSE- VCC GND VOUT VSENSEVSENSE+ VSENSEVCC ZXCT1051 GND VOUT VSENSE+ VOUT Ordering information Order code ZXCT1051E5TA Package SOT23-5 Partmark 1051 Reel size (inches) 7 Tape width (mm) 8 Quantity per reel 3,000 Issue 2 - November 2006 © Zetex Semiconductors plc 2006 .zetex. Absolute maximum ratings VCC max. Voltage on VSENSE- and VSENSE+ Voltage on all other pins VSENSE "(VSENSE+) - (VSENSE-) Operating temperature, Tamb Storage temperature Maximum junction temperature Package power dissipation 20V -0.6 to VCC -0.6V and VCC +0.6V 500m V -40 to 125°C -55 to 150°C 150°C 300m W at Tamb = 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+ VCC VSENSE VOUT Tamb mon-mode sense input range Supply voltage range Differential sense input voltage range Output voltage range Ambient temperature range Min. 0 2.7 0 0 -40 Max. VCC-2 20 0.3 VCC - 2 125 Units V V V V °C Pin function...