STM6904TWEDS6F STMicroelectronics

STM6904 Quad, ultralow voltage supervisor with push-button reset Features Quad voltage monitoring Accurate 1.8% across temperature voltage threshold (1% at 25 C) Primary supply (V ) monitor. Fixed (factory - CC programmed) reset thresholds: 3.078 to 2.188 V Second fixed (V2IN) monitor. Fixed (factory- programmed) reset thresholds: 2.333 to 1.110 V MSOP8 Two additional adjustable supply monitor (TSSOP8) (DS) inputs (externally adjustable) 0.6 V internal reference RST output (open drain) Output guaranteed for V 0.8 V CC Reset delay time (t ) pin selectable REC Applications Manual reset input (MR) Set-top boxes Low supply current of 12 A (typ) Multi-voltage systems Power supply voltage 0.8 to 5.5 V Cable/satellite applications RoHS compliant (green package) Computer systems 8-pin MSOP/TSSOP Data storage equipment Operating temperature: 40 to 85 C (industrial grade) (1) Table 1. Device summary Order code V (V) V (V) t (ms) Package RST1 RST2 REC STM6904TZEDS6F 3.078 2.333 210 MSOP8(TSSOP8) STM6904TWEDS6F 3.078 1.683 210 MSOP8(TSSOP8) STM6904TGEDS6F 3.078 1.110 210 MSOP8(TSSOP8) STM6904SYEDS6F 2.955 2.188 210 MSOP8(TSSOP8) STM6904SFEDS6F 2.955 1.050 210 MSOP8(TSSOP8) STM6904PWEDS6F 2.866 1.683 210 MSOP8(TSSOP8) 1. Other reset threshold voltages and t timeout periods are offered. Minimum order quantities may apply. Contact local REC ST sales office for availability. December 2011 Doc ID 14289 Rev 3 1/20 www.st.com 1Contents STM6904 Contents 1 Description . 5 2 Pin descriptions 7 2.1 Push-button reset input (MR) . 7 2.2 V primary supply voltage monitoring input . 7 CC 2.3 V2IN second fixed voltage monitoring input 7 2.4 V SS . 7 2.5 V3IN and V4IN 7 2.6 RST active-low, open drain reset output . 7 2.7 TR input 7 SEL 3 Operation 9 3.1 Setting the adjustable voltage levels for V3IN and V4IN inputs . 9 3.2 Power on reset (t ) . 9 REC 4 Voltage monitoring . 10 5 Maximum rating 11 6 DC and AC parameters 12 7 Package mechanical data 15 8 Part numbering 17 9 Package marking information 18 10 Revision history . 19 2/20 Doc ID 14289 Rev 3