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ZXCT1020 Datasheet(PDF) 2 Page - Diodes Incorporated |
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ZXCT1020 Datasheet(HTML) 2 Page - Diodes Incorporated |
2 / 14 page ZXCT1020 Issue 1 - August 2007 2 www.zetex.com © Zetex Semiconductors plc 2007 Absolute maximum ratings NOTES: (a) Subject to VSENSE+ never going 6V below VB. (b) Subject to absolute maximum VSENSE not being exceeded. (c) VSENSE is defined as the voltage difference across the sense resistor. and is the voltage across resistor RSH plus the voltage between S+ and S-. (d) VSENSE might need to be reduced when used with smaller values of RSH and at larger rails due to increased power dissipation. Pin out information Recommended operating conditions Recommended resistor gain setting combinations Voltage on VB with respect to GND pin -0.5V to 20V Voltage on S+(a), S-(b), OUT with respect to GND pin -0.5V to VB+0.5V VSENSE(c) -0.5V to +2.5V(d) Junction temperature -40°C to125°C Storage temperature -55°C to 150°C Package power dissipation (Tamb = 25°C) SOT23-5 300mW Pin Name Pin function 1 S+ Positive sense input. Should be tied to positive side of sense resistor via resistance (RSH) of the order of 150 to 1.5k . 2 GND Ground and substrate connection of device. 3 OUT Current output. A gain setting resistor (RG) referenced to GND should be connected to this pin to set overall voltage gain of: Gain = RG/RSH The resistance, RG, placed on out will set the ZXCT1020 output impedance equal to RG. When driving low impedance loads both RG and RSH should be reduced. 4VB Input voltage pin. Provides bias to current monitor and should be tied to the rail whose current is being monitored. 5 S- High impedance negative sense voltage input Parameter Min. Max. Units VSENSE+ Common-mode sense input range 2.5 20 V VB Bias pin input voltage range (*) NOTES: (*) For best performance VB and VSENSE+ should be referred to the rail whose current is being measured. 2.5 20 V VSENSE Differential sense Input voltage range 0 1.5 V VOUT Output voltage range 0 VSENSE- - 1 V RSH Shunt resistor value 120 2000 TA Ambient temperature range -40 85 °C Gain RSHUNT RGAIN 10 1.5k 15k 20 750 15k 50 300 15k 100 150 15k |
Similar Part No. - ZXCT1020 |
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Similar Description - ZXCT1020 |
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