ZXCT1081QE5TA Diodes Incorporated

A Product Line of Diodes Incorporated ZXCT1080Q/ ZXCT1081Q AUTOMOTIVE GRADE 60/40V HIGH-SIDE CURRENT MONITOR Description Pin Assignments The ZXCT1080Q and ZXCT1081Q are high side current sense monitors with a voltage output and a fixed gain of 10. Using this 1 V 5 S- CC device eliminates the need to disrupt the ground plane when sensing a load current. GND 2 The wide input voltage range of 60V and 40V, respectively, down to as low as 3V make it suitable for a range of automotive applications 7 OUT 3 4 S+ with 60V and 40V load dump withstand capabilities. The separate supply pin (V ) allows the device to continue CC functioning under short circuit conditions. The ZXCT1080Q and ZXCT1081Q have an extended ambient operating temperature range of -40C to 125C enabling it to be used in a wide range of automotive applications including. The ZXCT1080Q and ZXCT1081Q have been qualified to AEC-Q100 Grade 1 and are Automotive Grade supporting PPAPs. Features Applications Automotive current measurement Accurate high-side current sensing Battery management ZXCT1080Q : 3V to 60V continuous high side voltage Over-current measurement ZXCT1081Q : 3V to 40V continuous high side voltage -40C to +125C temperature range Output voltage scaling x10 4.5V to 12V V range CC Low quiescent current: 80 A supply pin 27 A I S+ Green Molding in SOT25 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Automotive Grade Qualified to AEC-Q100 Standards for High Reliability PPAP Capable (Note 4) 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 ZXCT1080Q/ ZXCT1081Q Pin Descriptions Function Pin Name Common ZXCT1080Q ZXCT1081Q 1 V This is the analogue supply and provides power to internal circuitry CC 2 GND Ground pin 3 OUT Output voltage pin. NMOS source follower with 20 A bias to ground This is the positive input of the current monitor. 4 S+ Input range from 60V Input range from 40V The current through this pin varies with differential sense voltage down to 3V down to 3V 5 S- This is the negative input of the current monitor. Absolute Maximum Ratings (@T = +25C, unless otherwise specified.) A Parameter Rating Unit ZXCT1080Q (Note 5) -0.6 to 65 Continuous voltage on S- and S+ V ZXCT1081Q (Note 5) -0.6 to 45 Transient voltage on S- and S+ ZXCT1081Q (Note 5) -0.6 to 65 V Voltage on all other pins -0.6 to +14 V 800 mV Differential sense voltage, V (Note 6) SENSE Operating temperature -40 to +125 C Storage Temperature -55 to +150 C Maximum Junction Temperature +125 C 300 Package Power Dissipation (Note 7) mW (@ T = +25C) A ESD Ratings HBM ESD Human Body Model 1000 V MM ESD Machine Model 150 V CDM ESD Charged Device Model TBD V Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional operation of the device at conditions between maximum recommended operating conditions and absolute maximum ratings is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and transporting these devices. Notes: 5. ZXCT1080 has a maximum transient and continuous voltage of 65V on the S+ and S- pin. The ZXCT1081 has a maximum continuous of 45V, it however can withstand transient up to 65V. 6. V is defined as the differential voltage between S+ and S- pins SENSE 7. Assumes = 420C/W JA Recommended Operating Conditions Symbol Parameter Min Max Units ZXCT1080Q 60 V Common-mode Sense+ Input Range 3 V IN ZXCT1081Q 40 V Supply Voltage Range 4.5 12 V CC V Differential Sense Input Voltage Range 0 0.15 V SENSE V Ouput Voltage Range (Note 8) 0 1.5 V OUT T Ambient Temperature Range -40 +125 C A Note: 8. Based on 10x V SENSE 2 of 11 March 2014 ZXCT1080Q/ ZXCT1081Q Diodes Incorporated www.diodes.com Document number: DS37012 Rev. 1 - 2