XRP6336ISCXDATR-F

X RP 6 3 3 6 Triple µPower Supervisory Circuit with Watchdog and Power Fail April 2011 Rev. 1.0.0 GENERAL DESCRIPTION APPLICATIONS The XRP6336, a triple μPower supervisory circuit, is a microprocessor reset supervisory circuit with multiple reset voltages. The XRP6336 provides low voltage monitoring ability for up-to three supplies with two precision factory-set thresholds and one user defined custom threshold. This circuit performs a single function: if any of the input supply voltages drops below its associated threshold, reset outputs are asserted. The XRP6336 offers power fail and watchdog functionalities. The XRP6336 is offered in a RoHS compliant, lead free 8-pin TSOT package and is fully specified over the -40°C to +85°C temperature range. • Power Supplies Monitoring • DSPs/FPGAs Supplies Monitoring FEATURES • Low operating voltage of 1.6V • Low operating current of 20μA typical • Monitors up to 3 supplies simultaneously • Adjustable inputs monitor down to 0.5V • Reset asserted down to 0.9V • 4% accuracy over temperature range • Power Fail Input Functionality (PFI) • Power Fail Output function, active low (PFOB) • Open Drain (OD) or CMOS RSTB output • 4 Reset Timeout Periods − 50ms, 100ms, 200ms and 400 ms • Watch Dog Input Functionality • RoHS Compliant Lead Free 8 pin TSOT Package TYPICAL APPLICATION DIAGRAM Fig. 1: XRP6336 Application Diagram Exar Corporation 48720 Kato Road, Fremont CA 94538, USA www.exar.com Tel. +1 510 668-7000 – Fax. +1 510 668-7001 X RP 6 3 3 6 Triple µPower Supervisory Circuit with Watchdog and Power Fail ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Input Voltage Range.................................... 0.9V to 5.5V Operating Temperature Range ................... -40°C to 85°C Thermal Resistance θJA .....................................134°C/W Terminal Voltage (with respect to GND) V1, V2 ..................................................... -0.3V to 6.0V Open-Drain RSTB, PFOB ............................. -0.3V to 6.0V CMOS RST, RSTB ............................. -0.3V to (V1+0.3V) Input Current/Output Current ................................ 20mA V3, V4, PFI, WDI .............................. -0.3V to (V1+0.3V) Storage Temperature .............................. -65°C to 150°C Power Dissipation ................................ Internally Limited Lead Temperature (Soldering, 10 sec) ................... 300°C ESD Rating (HBM - Human Body Model) .................... 2kV ESD Rating (MM - Machine Model) ...........................500V ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Ambient Temperature of TA = 25°C only; limits applying over the full Operating Ambient Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. Unless otherwise indicated, V1 = 1.6V to 5.5V, TA= –40°C to 85°C. Parameter Operating Voltage Range Min. Supply Current V1 Reset Threshold V2 Reset Threshold Typ. 0.9 Max. Units 5.5 V 20 30 15 25 µA Conditions TA=-40°C to +85°C V1