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MAX803 Datasheet(PDF) 1 Page - ON Semiconductor |
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MAX803 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 10 page © Semiconductor Components Industries, LLC, 2007 October, 2007 - Rev. 4 1 Publication Order Number: MAX803/D MAX803 Series, NCP803 Series Very Low Supply Current 3-Pin Microprocessor Reset Monitor The MAX803/NCP803 is a cost-effective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required. The reset output is driven active within 10 msec of V CC falling through the reset voltage threshold. Reset is maintained active for a timeout period which is trimmed by the factory after VCC rises above the reset threshold. The MAX803/NCP803 has an open drain active-low RESET output. Both devices are available in SOT-23 and SC-70 packages. The MAX803/NCP803 is optimized to reject fast transient glitches on the VCC line. Low supply current of 0.5 mA (V CC = 3.2 V) make these devices suitable for battery powered applications. Features • Precision VCC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies • Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps • Four Guaranteed Minimum Power-On Reset Pulse Width Available (1 ms, 20 ms, 100 ms, and 140 ms) • RESET Output Guaranteed to V CC = 1.0 V • Low Supply Current • V CC Transient Immunity • No External Components • Wide Operating Temperature: -40°C to 105°C • Pb-Free Packages are Available Typical Applications • Computers • Embedded Systems • Battery Powered Equipment • Critical Microprocessor Power Supply Monitoring VCC VCC VCC RESET RESET MAX803 NCP803 GND GND Figure 1. Typical Application Diagram mP 0 0 Rpull-up C = 100 nF SOT-23 (TO-236) CASE 318 PIN CONFIGURATION 3 1 2 VCC GND RESET SOT-23/SC-70 (Top View) MARKING DIAGRAM 3 2 12 1 3 http://onsemi.com xxx M G G xxx = Specific Device Code M = Date Code G = Pb-Free Package xx M G G 1 SC-70 (SOT-323) CASE 419 See general marking information in the device marking section on page 7 of this data sheet. DEVICE MARKING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet. ORDERING INFORMATION (Note: Microdot may be in either location) |
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