MAX803 Series, NCP803 Series Very Low Supply Current 3-Pin Microprocessor Reset Monitor www.onsemi.com The MAX803/NCP803 is a costeffective system supervisor circuit designed to monitor V in digital systems and provide a reset signal to CC MARKING the host processor when necessary. No external components are DIAGRAM required. 3 The reset output is driven active within 10 sec of V falling CC 3 SOT23 through the reset voltage threshold. Reset is maintained active for a xxx M (TO236) timeout period which is trimmed by the factory after V rises above CC CASE 318 1 12 the reset threshold. The MAX803/NCP803 has an open drain 2 activelow RESET output. Both devices are available in SOT23 and SC70 packages. SC70 The MAX803/NCP803 is optimized to reject fast transient glitches xx M (SOT323) on the V line. Low supply current of 0.5 A (V = 3.2 V) make CC CC CASE 419 these devices suitable for battery powered applications. 1 Features xxx = Specific Device Code Precision V Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V CC M = Date Code Supplies = PbFree Package Precision Monitoring Voltages from 1.2 V to 4.9 V Available (Note: Microdot may be in either location) in 100 mV Steps Four Guaranteed Minimum PowerOn Reset Pulse Width Available PIN CONFIGURATION (1 ms, 20 ms, 100 ms, and 140 ms) RESET Output Guaranteed to V = 1.0 V CC 1 GND Low Supply Current V Transient Immunity CC 3 V CC No External Components Wide Operating Temperature: 40C to 105C 2 RESET These Devices are PbFree and are RoHS Compliant Typical Applications SOT23/SC70 Computers (Top View) Embedded Systems Battery Powered Equipment ORDERING INFORMATION Critical Microprocessor Power Supply Monitoring See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. V CC DEVICE MARKING INFORMATION V V CC CC See general marking information in the device marking R pullup section on page 8 of this data sheet. MAX803 P NCP803 C = 100 nF RESET RESET GND GND 0 0 Figure 1. Typical Application Diagram Semiconductor Components Industries, LLC, 2006 1 Publication Order Number: October, 2015 Rev. 10 MAX803/DMAX803 Series, NCP803 Series 3 2 Timeout Oscillator V CC Counter RESET Vref 1 GND Figure 2. NCP803, MAX803 Series OpenDrain ActiveLow Output PIN DESCRIPTION Pin No. Symbol Description 1 GND Ground 2 RESET RESET output remains low while V is below the reset voltage threshold, and for a reset timeout CC period after V rises above reset threshold. CC 3 V Supply Voltage: C = 100 nF is recommended as a bypass capacitor between V and GND. CC CC ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage (V to GND) V 0.3 to 6.0 V CC CC RESET Output Voltage (CMOS) 0.3 to (V + 0.3) V CC Input Current, V 20 mA CC Output Current, RESET 20 mA dV/dt (V ) 100 V/ sec CC Thermal Resistance, JunctiontoAir (Note 1) SOT23 R 301 C/W JA 314 SC70 Operating Junction Temperature Range T 40 to +125 C J Storage Temperature Range T 65 to +150 C stg Lead Temperature (Soldering, 10 Seconds) T +260 C sol ESD Protection V 2000 Human Body Model (HBM): Following Specification JESD22A114 200 Machine Model (MM): Following Specification JESD22A115 Latchup Current Maximum Rating: Following Specification JESD78 Class II I mA Latchup 200 Positive 200 Negative Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 2 1. This based on a 35x35x1.6mm FR4 PCB with 10mm of 1 oz copper traces under natural convention conditions and a single component characterization. 2. The maximum package power dissipation limit must not be exceeded. T T J(max) A P with T = 150C J(max) D R JA www.onsemi.com 2
