A Product Line of Diodes Incorporated ZXCT1010 ENHANCED HIGH-SIDE CURRENT MONITOR Description Pin Assignments The ZXCT1010 is a high side current sense monitor. Using this SOT25 device eliminates the need to disrupt the ground plane when sensing Package Suffix - E5 a load current. NC 1 5 V - It is an enhanced version of the ZXCT1009 offering reduced typical SENSE output offset and improved accuracy at low sense voltage. GND 2 The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of applications. A minimum operating current of I V + 3 4 OUT SENSE just 4A, combined with its SOT25 package make suitable for portable battery equipment. Top View Features Applications Low cost, accurate high-side current sensing Output voltage scaling Battery chargers Up to 2.5V sense voltage Smart battery packs 2.5V to 20V supply voltage range DC motor control 300nA typical offset current Over current monitor 3.5A quiescent current Power management 1% typical accuracy Programmable current source SOT25 package Totally Lead-Free & Fully RoHS Compliant(Note 1 & 2) Halogen and Antimony Free. Green Device(Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See A Product Line of Diodes Incorporated ZXCT1010 Pin Descriptions Pin Number Pin Name Function 1 NC No connection 2 GND Ground 3 I Output current, proportional to V - V OUT IN LOAD 4 V Supply voltage SENSE- 5 V Connection to load/battery SENSE+ Functional Block Diagram Absolute Maximum Ratings ( T = +25C, unless otherwise specified.) A Parameter RatingUnit Voltage on any pin (relative to I ) -0.6 to +20 V OUT Continuous output current, I 25 mA OUT Continuous sense voltage, V (Note 4) -0.5 to +0.5 V SENSE -40 to +85 C Operating temperature, T A Storage temperature -55 to +125 C Package power dissipation( T = +25C) SOT25 300 mW A Note: 4. Operation above the absolute maximum rating may cause device failure. Operation at absolute maximum ratings, for extended periods, may reduce device reliability Electrical Characteristics ( T = +25C, unless otherwise specified.) A Limits Symbol Parameter Conditions Units Min Typ Max V V range 2.5 20 V IN CC V = 0V 0 0.3 10 SENSE A V = 10mV 85 100 115 SENSE Output Current (Note 5) 0.975 1.0 1.025 I V = 100mV OUT SENSE 1.95 2.0 2.05 mA V = 200mV SENSE 9.7 10.0 10.3 V = 1V SENSE Iq Ground pin current V = 0V 3.5 8 A SENSE V Sense Voltage (Note 6) 0 2500 mV SENSE I V Input Current 100 nA SENSE- SENSE - Accuracy -2.5 2.5 % A R = 0.1 V = 200mV CC SENSE SENSE 10000 A/V G Transconductance, I /V M OUT SENSE 300 kHz V = 10mV, RF P = -40dBm (Note 7) SENSE(DC) IN BW Bandwidth V = 100mV, RF P = -20dBm (Note SENSE(DC) IN 2 MHz 7) Notes: 5. Include input offset voltage contribution 6. V is defined as the differential voltage between V and V , V = V -V - =V -V = I * R SENSE SENSE+ SENSE- SENSE SENSE+ SENSE IN LOAD LOAD SENSE 7. -20dBm = 63mV into 50 P-P 2 of 8 March 2014 ZXCT1010 Diodes Incorporated www.diodes.com Document number: DS33442 Rev. 11 - 2