ZXCT1008QFTA Diodes Incorporated

ZXCT1008 INCREASED AMBIENT TEMPERATURE HIGH-SIDE CURRENT MONITOR Description Pin Assignments The ZXCT1008 is a high side current sense monitor. Using this (Top View) device eliminates the need to disrupt the ground plane when sensing a load current. It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current. A user VV 33 SSEENSNSEE-- defined output resistor scales the output current into a ground- II referenced voltage. 11 OUTOUT The wide input voltage range of 20V down to as low as 2.5V make 22 VV SSEENSNSEE++ it suitable for a range of applications. The ability to withstand high voltage transients and reverse polarity connection makes this part very suitable for automotive and other transient rich environment. ((TToopp V Vieieww)) SOT23 Features Application Circuit Low Cost, Accurate High-Side Current Sensing -40 to +125 Temperature Range Up to 500mV Sense Voltage RSENSE V To load IN 2.5V to 20V Supply Range 4A Quiescent Current 1% Typical Accuracy SOT23 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) VSENSE- VSENSE+ Halogen and Antimony Free. Green Device (Note 3) Automotive-Compliant Part Supporting PPAPs Available ZXCT1008 under Separate Datasheet (ZXCT1008Q) I OUT R LIM Applications V OUT Automotive Current Measurement DC Motor and Solenoid Control Over Current Monitor R Power Management Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See ZXCT1008 Pin Descriptions Pin Name Pin Function V Connection to supply voltage SENSE+ V SENSE- Connection to load I Output current, proportional to measured current OUT Absolute Maximum Ratings ( T = +25C, unless otherwise specified.) A Description Rating Unit -0.6 to 20 Voltage on Any Pin (relative to I ) V OUT Continous Output Current, I 25 mA OUT Continuous Sense Voltage, V (Note 4) -0.5 to 5 V SENSE Operating Temperature, T -40 to +85 C A Storage Temperature -55 to +125 C 450 Package Power Dissipation T = +25C (Derate to Zero +125C) A mW Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings for extended periods may reduce device reliability. Electrical Characteristics ( T = +25C, V = 5V, R = 100, unless otherwise specified.) A IN OUT Symbol Parameter Conditions Min Typ Max Unit V V Range 2.5 20 V IN CC V = 0V 1 4 15 A SENSE 90 104 120 A V = 10mV SENSE Output Current 0.975 1.0 1.025 mA I V = 100mV OUT SENSE (Note 5) 1.95 2.0 2.05 mA V = 200mV SENSE 4.8 5.0 5.2 mA VSENSE = 500mV V Sense Voltage (Note 4) 0 500 mV SENSE I V Input Current 100 nA SENSE- SENSE - A Accuracy R = 0.1, V = 200mV -2.5 2.5 % CC SENSE SENSE Transconductance, G 10000 A/V M I /V OUT SENSE V = 10mV, RF P = -40dBm SENSE(DC) IN 300 kHz (Note 6) BW Bandwidth V = 100mV, RF P = -20dBm SENSE(DC) IN 2 MHz (Note 6) Notes: 4. V is defined as the differential voltage between V and V SENSE SENSE+ SENSE- V = V - V SENSE SENSE SENSE- + = V - V IN LOAD = I x R LOAD SENSE 5. Includes input offset voltage contribution. 6. -20dBm=63mV into 50. PP 2 of 7 ZXCT1008 September 2015 Diodes Incorporated www.diodes.com Document number: DS33440 Rev. 7 - 2