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SP691AET Datasheet(PDF) 5 Page - Sipex Corporation |
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SP691AET Datasheet(HTML) 5 Page - Sipex Corporation |
5 / 24 page 5 Date: 4/18/05 SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over © Copyright 2005 Sipex Corporation NOTE 1: Either V CC or VBATT can go to 0V, if the other is greater than 2.0V. NOTE 2: The supply current drawn by the SP691A/693A/800L/800M from the battery (excluding I OUT) typically goes to 5µA when (V BATT - 1V) < VCC < VBATT. In most applications, this is a brief period as VCC falls through this region. NOTE 3: "+" = battery-discharging current, "-" = battery-charging current. NOTE 4: Although presented as typical values, the number of clock cycles for the reset and watchdog timeout periods are fixed and do not vary with process or temperature. NOTE 5: RESET is an open-drain output and sinks current only. NOTE 6: WDI is internally connected to a voltage divider between V OUT and GND. If unconnected, WDI is driven to 1.6V (typ), disabling the watchdog function. NOTE 7: The chip-enable resistance is tested with V CC = +4.75V for the SP691A/800L and VCC = +4.5V for the SP693A/800M. CE IN = CEOUT = VCC/2. NOTE 8: The chip-enable propagation delay is measured from the 50% point at CE IN to the 50% point at CEOUT. Figure 1. V CC Supply Current vs. Temperature (Normal Operating Mode) Figure 3. Chip-Enable On-Resistance vs. Temperature Figure 2. Battery Supply Current vs. Temperature (Battery-Backup Mode) Figure 4. V BATT to VOUT On-Resistance vs. Temperature V CC = +4.75V to +5.5V for the SP691A/800L, VCC = +4.5V to +5.5V for the SP693A/800M, VBATT = +2.8V, and TAMB = TMIN to TMAX unless otherwise noted. Typical values apply at T AMB=+25 OC. Temperature (oC) -60 -30 0 30 60 90 120 43 40 37 34 31 28 25 V CC = 5V V BATT = 2.8V Temperature (oC) -60 -30 0 30 60 90 120 150 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 V CC = 1.6V V BATT = 2.8V Temperature (oC) -80 -60 -40 -20 0 20 40 60 80 100 120 140 75.0 70.0 65.0 60.0 55.0 50.0 45.0 40.0 V CC = 4.75V V BATT = 2.8V CE IN = V CC/2 Temperature (oC) -60 -30 0 30 60 90 120 150 14 12 10 8 6 4 2 0 V CC = 0V V BATT = 2V V BATT = 2.8V V BATT = 4.5V ELECTRICAL CHARACTERISTICS (T AMB = 25 oC, unless otherwise noted) TYPICAL PERFORMANCE CHARACTERISTICS |
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