PT7M3808 Low Quiescent Programmable-Delay Supervisory
2022-01-17
●Description
■The PT7M3808G family of microprocessor supervisory circuits monitor system voltage form 0.4V to 5.0V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR ) return above the respective thresholds.
■The PT7M3808G series use a precision reference to achieve 0.5% threshold accuracy for VIT ≤3.3 V. The reset delay time can be set to 20ms by disconnecting the C-T pin, 300ms by connecting the C-T pin to V-DD using a resister, or can be user-adjusted between 1. 25ms and 10s by connecting the C-T pin to an external capacitor. The PT7M3808 has a very low typical quiescent current of 2. 8μA so it is well-suited to battery-powered applications. It is available in a small SOT23 and an ultra-small 2.0x2.0 TDFN package, and is fully specified over a temperature range of -40℃ to +125℃.
●Features
■Power-On Reset Generator with Adjustable Delay Time: 1.25ms to 10s.
■Very Low Quiescent Current: 2.8μA Typical
■High Threshold Accuracy: 0.5% Typ.
■Fixed Threshold Voltages for Standard Voltage Rails from 0.9V to 5V and Adjustable Voltage Down to 0.4V are available.
■Manual Reset ( MR ) Input
■Open-Drain RESET Output.
■Temperature Range: -40C to +125℃
■Totally Lead-Free & Fully RoHS Compliant(Notes 1 & 2)
■Halogen and Antimony Free. "Green" Device (Note 3)
■For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative.
■Package: TDFN2.0x2.0-6L and SOT23-6L
■The PT7M3808G family of microprocessor supervisory circuits monitor system voltage form 0.4V to 5.0V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR ) return above the respective thresholds.
■The PT7M3808G series use a precision reference to achieve 0.5% threshold accuracy for VIT ≤3.3 V. The reset delay time can be set to 20ms by disconnecting the C-T pin, 300ms by connecting the C-T pin to V-DD using a resister, or can be user-adjusted between 1. 25ms and 10s by connecting the C-T pin to an external capacitor. The PT7M3808 has a very low typical quiescent current of 2. 8μA so it is well-suited to battery-powered applications. It is available in a small SOT23 and an ultra-small 2.0x2.0 TDFN package, and is fully specified over a temperature range of -40℃ to +125℃.
●Features
■Power-On Reset Generator with Adjustable Delay Time: 1.25ms to 10s.
■Very Low Quiescent Current: 2.8μA Typical
■High Threshold Accuracy: 0.5% Typ.
■Fixed Threshold Voltages for Standard Voltage Rails from 0.9V to 5V and Adjustable Voltage Down to 0.4V are available.
■Manual Reset ( MR ) Input
■Open-Drain RESET Output.
■Temperature Range: -40C to +125℃
■Totally Lead-Free & Fully RoHS Compliant(Notes 1 & 2)
■Halogen and Antimony Free. "Green" Device (Note 3)
■For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative.
■Package: TDFN2.0x2.0-6L and SOT23-6L
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