zxct1012 Zetex Semiconductors plc., zxct1012 Datasheet
zxct1012
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zxct1012 Summary of contents
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... ZXCT1012 Reduced height micro-power current monitor Description The ZXCT1012 is a high side current sense monitor. Using this type of device eliminates the need to disrupt the ground plane when sensing a load current. The ZXCT1012 takes the voltage developed across a small value resistor and translates it into a proportional output current ...
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... V SENSE+ -0.15V to +3V -40 to 85°C -55 to 150°C 150°C 300mW at T amb 25°C JA DISS 250°C/W 500mW 232°C/W 540mW 2 ZXCT1012 flows out of this pin. A suitable - 1.5V. SENSE- +0.5V = 25°C (De-rate to zero at 150°C) www.zetex.com ...
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... CMRR rejection ratio NOTES: (*) Temperature dependent measurements are extracted from characterisation and simulation results. (‡) With the ZXCT1012 using SENSE+ as its power supply pin, common mode rejection cannot be distinguished from power supply rejection. Issue 1 - December 2006 © Zetex Semiconductors plc 2006 ...
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... Typical characteristics 2% 0% -2% -4% -6% Issue 1 - December 2006 © Zetex Semiconductors plc 2006 4 ZXCT1012 www.zetex.com ...
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... Higher values for R gives better accuracy at low load currents by reducing the inaccuracies SENSE due to internal offsets. For best operation the ZXCT1012 has been designed to provide best performance with V of the order of 40mV to 200mV. SENSE Current monitors are single supply devices which means they tend to saturate at very low sense voltages ...
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... DC motors, a charging battery or further circuitry that LOAD requires monitoring, Rsense can be selected on specific requirements of accuracy, size and power rating. Issue 1 - December 2006 © Zetex Semiconductors plc 2006 equation (1) equation (2) equation (3) = 0.1V/1.0A = 0.1 = 100mV. = 10mA/V x 0.1 = 1mA gives: OUT = 0.1/0.001 = 100 LOAD 6 ZXCT1012 ): OUT to give: SENSE www.zetex.com ...
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... I = 2.5 x 0.01 OUT = 25mA OUT OUT OUT = 25mA x 100 = 2.5V ∴ 25mA (20 - 2.5 438mW Issue 1 - December 2006 © Zetex Semiconductors plc 2006 ), according to the expression: amb JA is given by the expression: D TDFN3x3-5 TSOT23-5 100 125 150 = 2.5V 7 ZXCT1012 ), is a MAX ), maximum junction JA www.zetex.com ...
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... Issue 1 - December 2006 © Zetex Semiconductors plc 2006 Millimeters Max. - 1.00 0.10 0.90 0.45 0.20 2.90 BSC 2.80 BSC 1.60 BSC 0.95 BSC 1.90 BSC 0.50 0.25 BSC 12° 8 ZXCT1012 Inches Min. Max. - 0.0393 0.0003 0.0039 0.0330 0.0354 0.0118 0.0177 0.0047 0.0078 0.114 BSC 0.110 BSC 0.062 BSC 0.0374 BSC 0.0748 BSC 0.0118 ...
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... Issue 1 - December 2006 © Zetex Semiconductors plc 2006 E2 Inches Dim. Min. Max. 0.0276 0.0315 e 0.00 0.002 E 0.0079REF E2 0.0118 0.0177 L 0.1181BSC K 0.0728 0.0827 - 9 ZXCT1012 E2 K Millimeters Inches Min. Max. Max. 0.95REF 0.0374REF 3.00BSC 0.1181BSC 0.85 1.10 0.0335 0.30 0.50 0.0118 0.20 - 0.0079 - - - www.zetex.com Max. 0.0433 0.0197 ...
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... Zetex Semiconductors plc 3701-04 Metroplaza Tower 1 Zetex Technology Park, Chadderton Hing Fong Road, Kwai Fong Oldham, OL9 9LL Hong Kong United Kingdom Telephone: (852) 26100 611 Telephone: (44) 161 622 4444 Fax: (852) 24250 494 Fax: (44) 161 622 4446 asia.sales@zetex.com hq@zetex.com 10 ZXCT1012 www.zetex.com ...