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SP704 Dataheets PDF



Part Number SP704
Manufacturers Sipex
Logo Sipex
Description Low Power Microprocessor Supervisory with Battery Switch-Over
Datasheet SP704 DatasheetSP704 Datasheet (PDF)

® SP703/SP704 Low Power Microprocessor Supervisory with Battery Switch-Over s Precision Voltage Monitor: SP703 at 4.65V SP704 at 4.40V s Reset Time Delay - 200ms s Debounced TTL/CMOS Compatible Manual - Reset Input s Minimum component count s 60µA Maximum Operating Supply Current s 0.6µA Maximum Battery Backup Current s 0.1µA Maximum Battery Standby Current s Power Switching 250mA Output in VCC Mode (0.6Ω) 25mA Output in Battery Mode (5Ω) s Voltage Monitor for Power Fail or Low Battery Warning.

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® SP703/SP704 Low Power Microprocessor Supervisory with Battery Switch-Over s Precision Voltage Monitor: SP703 at 4.65V SP704 at 4.40V s Reset Time Delay - 200ms s Debounced TTL/CMOS Compatible Manual - Reset Input s Minimum component count s 60µA Maximum Operating Supply Current s 0.6µA Maximum Battery Backup Current s 0.1µA Maximum Battery Standby Current s Power Switching 250mA Output in VCC Mode (0.6Ω) 25mA Output in Battery Mode (5Ω) s Voltage Monitor for Power Fail or Low Battery Warning s Available in 8 pin SO and DIP packages s RESET asserted down to VCC = 1V s Pin Compatible Upgrades to MAX703/MAX704 DESCRIPTION The SP703/704 devices are microprocessor (µP) supervisory circuits that integrate a myriad of components involved in discrete solutions to monitor power-supply and battery-control functions in µP and digital systems. The series will significantly improve system reliability and operational efficiency when compared to discrete solutions. The features of the SP703/704 devices include a manual reset input, a µP reset and backup-battery switchover, and powerfailure warning. The series is ideal for applications in computers, controllers, intelligent instruments and automotive systems. All designs where it is critical to monitor the power supply to the µP and its related digital components will find the series to be an ideal solution. VBATT BATTERY SWITCHOVER CIRCUITRY VOUT VOUT VCC GND PFI 1 2 3 4 8 7 6 5 VBATT RESET MR PFO VCC RESET GENERATOR 1.25V RESET MR PFI PFO 1.25V PINOUT SP703/704DS/07 INTERNAL BLOCK DIAGRAM SP703/704 Low Power Microprocessor Supervisory © Copyright 2000 Sipex Corporation 1 ABSOLUTE MAXIMUM 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 and cause permanent damage to the device. VCC........................................................-0.3V to 6.0V VBATT.....................................................-0.3V to 6.0V All Other Inputs......................................-0.3V to (VCC +0.3V) Input Current: VCC.........................................................250mA VBATT........................................................50mA GND........................................................20mA Output Current: VOUT.....Short-Circuit Protected for up to 10sec All Other Inputs.................................20mA Rate of Rise, VCC,VBATT..................100V/µs Continuous Power Dissipation.......500mW Storage Temperature.......-65°C to +160°C Lead Temperature(soldering,10sec).................+300°C ESD Rating.............................4kV Human Body Model SPECIFICATIONS Vcc=4.75v to 5.50V for SP703, VCC = 4.50V to 5.50V for SP704, VBATT=2.80V, TA=TMIN to TMAX, typical specified at 25OC, unless otherwise noted. PARAMETERS Operating Voltage Range, MIN. 0 TYP. MAX. 5.5 UNITS Volts CONDITIONS VCC or VBATT, NOTE 1 Supply Current, ISUPPLY, ISUPPLY in Battery Backup Mode, VCC = 0V, VBATT = 2.8V VBATT Standby Current, NOTE 2 VOUT Output VOUT in Battery-Backup Mode VCC < VBATT - 0.2V Battery Switch Threshold, VCC to VBATT Battery Switchover Hysteresis Reset Threshold 4.50 4.25 -0.1 VCC - 0.1 VBATT -0.15 VCC - 0.03 VCC - 0.15 VBATT - 0.04 VBATT - 0.20 20 -20 40 4.65 4.40 4.75 4.50 35 0.001 60 0.6 0.02 µA µA µA Volts VCC > VBATT + 0.2V IOUT = 50mA IOUT = 250mA IOUT = 5mA IOUT = 25mA Power-up Power-down Peak to Peak SP703 SP704 excluding IOUT Volts mV mV Volts SP703/704DS/07 SP703/704 Low Power Microprocessor Supervisory © Copyright 2000 Sipex Corporation 2 SPECIFICATIONS (continued) Vcc=4.75V to 5.50V for SP703, VCC = 4.5 0V to 5.50V for SP704, VBATT=2.80V, TA=TMIN to TMAX, typical specified at 25OC, unless otherwise noted. PARAMETERS Reset Threshold Hysteresis Reset Pulse Width, tRS RESET Output Voltage MIN. TYP. 40 MAX. UNITS mV CONDITIONS Peak to Peak 140 VCC - 1.5 200 280 ms ISOURCE = 800µA 0.1 0.004 MR Input Threshold LOW HIGH MR Minimum Pulse Width MR to RESET Delay MR Pull Up Current PFI Input Threshold PFI Input Current PFO Output Voltage 100 1.200 -25 VCC - 1.5 0.1 250 1.250 0.01 0.4 0.3 Volts ISINK = 3.2mA ISINK = 50µA, VCC = 1.0V 0.8 2.0 150 250 600 1.300 25 V ns ns µA Volts nA Volts ISOURCE = 800µA ISINK = 3.2mA MR=0V 0.4 NOTE 1: Either VCC or VBATT can go to 0V if the other is greater than 2.0V. NOTE 2: "-" equals the battery-charging current, "+" equals the battery-discharging current. SP703/704DS/07 SP703/704 Low Power Microprocessor Supervisory © Copyright 2000 Sipex Corporation 3 PINOUT INTERNAL BLOCK DIAGRAM VBATT BATTERY SWITCHOVER CIRCUITRY VOUT VOUT VCC GND PFI 1 2 3 4 8 7 6 5 VBATT RESET MR PFO MR VCC RESET GENERATOR 1.25V RESET PIN ASSIGNMENTS Pin 1 —VOUT — Output Supply Voltage. VOUT connects to VCC when VCC is greater than VBATT and VCC is above th.


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