SS810G Datasheet | Silicon Standard

SS809/810G 3-Pin Microprocessor Reset Circuits Features Ultra-low supply current 1µA (typ.) Guaranteed reset valid to Vcc=0.9V Available in three output types: Open-drain active low (SS809N-xx Gx) Push-pull active low (SS809-xx Gx) Push-pull active high (SS810-xx Gx) Power-on reset pulse width min. 140ms Internally fixed threshold 2.3V, 2.6V, 2.9V, 3.1V, 4.0V, 4.4V, 4.6V Tight voltage threshold tolerance: 1.5% Packaged in Ro HS-pliant SOT-23-3 These devices provide valid signals in applications with Vcc ranging from 6.0V down to 0.9V. The reset signal lasts for a minimum period of 140ms whenever the VCC supply voltage falls below a preset threshold. Both the SS809G and SS810G were designed with a reset parator to help identify invalid signals lasting less than 140ms. The only difference between the two devices is that one has an active -low RESET output and the other an active -high RESET output . Low supply current (1µA) makes the SS809G and SS810G ideal for portable equipment. The devices are available in a SOT-23-3 package. DESCRIPTION The SS809G and SS810G are low-power microprocessor (µP) supervisory circuits used to monitor power supplies in µP and digital systems. They improve circuit reliability and reduce cost by eliminating external ponents. APPLICATIONS l l l l Notebook puters Digital Still Cameras PDAs Critical Microprocessor Monitoring TYPICAL APPLICATION CIRCUIT VCC VCC SS809G ( SS810G) RESET (RESET) GND VCC µP RESET INPUT GND Push -Pull Output 9/20/2006 Rev.3.01 .Silicon Standard. 1 of 8 SS809/810G ORDERING INFORMATION SS809X-XXGU XX SS810 -XXGU XX Packing type TR: T ape and reel SOT-23-3 TOP VIEW 1: GND 2: RESET (RESET) 3: VCC PIN CONFIGURATION Package type GU: Ro HS-pliant Pb-free SOT-23-3 Reset threshold voltage 23: 2.3V 26: 2.6V 29: 2.9V 31: 3.1V 40: 4.0V 44: 4.4V 46: 4.6V Output type Default: Push-Pull type N: N-ch open-drain type Example: SS809 -31GU TR à 3.1V , push- pull version in Ro HS-pliant SOT -23-3 ,...