SP809 / SP810 SP809 / SP810 3 Pin Microprocessor Supervisor Circuit 3 Pin Microprocessor Supervisor Circuit November 2017 Rev. 2.0.2 GENERAL DESCRIPTION APPLICATIONS The SP809/SP810 are low power Portable Electronic Devices microprocessor (P) supervisory circuits used Electrical Power Meters to monitor power supplies in P and digital Digital Still Cameras systems. P Power Monitoring They provide applications with benefits of circuit reliability and low cost by eliminating external components. If the VCC supply FEATURES voltage falls below preset threshold then a reset signal is asserted for at least 140ms Ultra Low Supply Current 1A (typ) after V has risen above the reset threshold. CC Guaranteed Reset valid to V = 0.9V CC Both the SP809 and SP810 were designed with 140ms Power-On Reset Pulse Width a reset comparator to help identify invalid signals, which last less than 140ms. The only Internally Fixed Threshold difference between them is that they have an 2.3V, 2.6V, 2.9V, 3.1V, 4.4V, 4.6V active-low RESET output and active-high RESET 1.5% Voltage Threshold Tolerance output, respectively. Low supply current (1A) makes SP809/SP810 ideal for portable 3 Pin SOT-23 Package equipment. The devices are available in 3 pin SOT-23 package. Part Number Output Type Open Drain Active Low SP809N Push-Pull Low SP809 Push-Pull Active High SP810 TYPICAL APPLICATION DIAGRAM Fig. 1: SP809 / SP810 Application Diagram 1/8 Rev. 2.0.2 SP809 / SP810 SP809 / SP810 33 PPiinn MMiiccrroopprroocceessssoorr SSuuppeerrvviissoorr CCiirrccuuiitt ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of Input Voltage Range V ................................ 0.9V to 6V CC the device at these ratings or any other above those Junction Temperature Range ..................... -40C to 85C 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. V .......................................................... -0.3V to 6.5V CC RESET, RESET ...................................... -0.3V to V +0.3V CC Output Current (RESET, RESET) ............................... 20mA Power Dissipation (T =70C) .............................. 320mW A Junction Temperature .......................................... 125C Storage Temperature .............................. -65C to 150C ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Temperature of TA = 25C only limits applying over the full Operating 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 T = 25C, and are provided for reference A purposes only. Unless otherwise indicated, T = 25C. A Parameter Min. Typ. Max. Units Conditions Operating Voltage Range VCC 0.9 6.0 V Supply Current ICC 1.0 3.0 A VCC=VTH+0.1V 2.3 2.335 T =+25C 2.265 A 2.346 T =-40C to 85C 2.254 A 2.6 2.639 2.561 TA=+25C 2.548 2.652 TA=-40C to 85C 2.857 2.9 2.944 T =+25C A 2.958 T =-40C to 85C 2.842 A Reset Threshold V V TH 3.1 3.147 3.054 TA=+25C 3.038 3.162 TA=-40C to 85C 4.334 4.4 4.466 TA=+25C 4.312 4.488 T =-40C to 85C A 4.6 4.669 T =+25C 4.531 A 4.692 4.508 TA=-40C to 85C VCC Reset Delay tTRIP 20 s VCC=VTH to (VTH - 0.1V), VTH=3.1V 140 230 560 T =+25C A Reset Active Timeout Period t ms RP 1030 T =-40C to 85C 100 A RESET Output Voltage V V =V - 0.1V, I = 1.2mA OH 0.8VCC CC TH SOURCE V RESET Output Voltage VOL 0.3 VCC=VTH + 0.1V, ISINK = 1.2mA RESET Output Voltage VOH V =V + 0.1V, I = 1.2mA 0.8VCC CC TH SOURCE V RESET Output Voltage VOL 0.3 VCC=VTH - 0.1V, ISINK = 1.2mA Note 1: RESET output is for SP809 RESET output is for SP810. 2/8 Rev. 2.0.2