ZXCT1030N8TA Diodes Incorporated

A Product Line of Diodes Incorporated ZXCT1030 HIGH-SIDE CURRENT MONITOR WITH COMPARATOR Description Pin Assignments The ZXCT1030 is a high side current sense monitor containing an internal reference and comparator with a non- latching output. Using this device eliminates the need to V V disrupt the ground plane when sensing a load current. CC COMP OUT V V OUT SENSE- The wide input voltage range of 20V down to as low as 2.2V V make it suitable for a range of applications. Dynamics and Vref out SENSE+ supply current are optimized for the processing of fast pulses, GND V COMP IN associated with switch mode applications. Features Applications Low cost, accurate high-side current sensing Battery chargers Output voltage scaling Electronic fuse Up to 18V output DC motor control 2.2V - 20V supply range Over current monitor Voltage reference on chip Power management Comparator on chip Inrush current limiting SO8 package Typical Application Circuit 1 of 7 June 2010 ZXCT1030 Diodes Incorporated www.diodes.com Document number: DS32161 Rev. 4 - 2 A Product Line of Diodes Incorporated ZXCT1030 Pin Description Pin Name Function V Supply voltage CC V Negative sense input SENSE- V Positive sense input SENSE+ GND Ground Comparator input, usually a ratio of the V COMP IN reference or other control signal Reference output V REF OUT V Current monitor output voltage OUT V Open collector comparator output COMP OUT Absolute Maximum Ratings Parameter Rating Unit Voltage on any pin V -0.6 and V +0.6 CC Operating Temperature -40 to 85 C Storage Temperature -55 to 125 C Package Power Dissipation C (T = 25) AMB SO8 700 mW Recommended Operating Conditions Parameter Min Max Units V 2.2 20 V CC 2.2 V V V SENSE+ CC (a) 10 500 mV V SENSE 0 V V V -1V OUT SENSE- 0.005 10 V V COMP IN T -40 85 C AMB 2 of 7 June 2010 ZXCT1030 Diodes Incorporated www.diodes.com Document number: DS32161 Rev. 4 - 2