ISL88042 Intersil Corporation, ISL88042 Datasheet
ISL88042
Related parts for ISL88042
ISL88042 Summary of contents
Page 1
... This device combines popular functions such as Power-On Reset, Undervoltage Supply Supervision, reset signaling and Manual Reset. Monitoring four different supplies 2x3 TDFN package, the ISL88042 devices can help to lower system cost, reduce board space requirements, and increase the reliability of multi-voltage systems ...
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... Functional Block Diagram V2MON www.DataSheet4U.com 2 ISL88042 PIN NAME MR Active-Low open drain manual reset input with internal pull-up resistor V Chip Bias Input and primary integrated preset undervoltage monitor DD V2MON Secondary integrated preset undervoltage monitor input GND Ground V3MON ...
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... TH1HYST TH1 www.DataSheet4U.com V Fixed Voltage Trip Point for V2MON TH2 V Hysteresis of V TH2HYST TH2 V ISL88042IRTHFZ, ISL88042IRTEEZ REF Adj. Reset Threshold Voltage V ISL88042IRTJJZ Adj. Reset Threshold Voltage V REF V Hysteresis Voltage REFHYST RESET V Reset Output Voltage Low Reset Asserted Delay RPD TH 3 ...
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... RST output to go low when the voltage on V2MON falls below V . TH2 V3MON, and V4MON The VxMON inputs provide monitoring and UV compliance of three additional voltages through resistor dividers. A reset is issued on the ISL88042 if the voltage on any VxMON falls below the internal V of 0.6V. REF 4 ISL88042 TEST CONDITIONS V3MON, V4MON < ...
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... Power-On Reset (POR) Applying power to the ISL88042 activates a POR circuit, which makes the reset pin(s) active (i.e. RST goes high while RST goes low). These signals provide several benefits: • They prevent the system microprocessor from starting to operate with insufficient voltage. ...
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... With adequate bias on the two preset and the two adjustable monitor inputs the RST output will release to pull high indicating that all supplies are compliant for a minimum For the ISL88042EVAL1Z as shipped, the V POR V2MON nominal thresholds are as previously noted with the voltage thresholds being monitored by V3MON and V4MON being left open for programming via the non populated resistor dividers ...
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... No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 7 ISL88042 RPD RST RST VDD V4MON R5 V4MON OPEN R3 V3MON OPEN V3MON A FIGURE 10. ISL88042EVAL1Z SCHEMATIC AND PHOTOGRAPH t = 94ms POR 20ms/DIV FIGURE 9. ISL88042 t POR V4 V3 RST 1V/DIV VMON = 0.5V/DIV FN6655.1 June 8, 2009 ...
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... Package Outline Drawing L8.2x3A 8 LEAD THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE WITH E-PAD Rev 1, 06/09 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW PACKAGE OUTLINE www.DataSheet4U.com TYPICAL RECOMMENDED LAND PATTERN 8 ISL88042 6 2.00 PIN #1 INDEX AREA A B (8x0.25) (6x0.50) 0.05 (8x0.40) (8x0.20) 1.65 2.00 NOTES 0.25 0.50 (8x0.40) 1 ...