PT7M3808

PT7M3808

Document overview

• Manufacturer or author: Diodes Incorporated
• PDF pages: 13

Technical content

Features

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 2 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Block Diagram Adjustable Voltage Diagram (PT7M3808G01) Fixed Voltage Diagram

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 3 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Pin Configuration Pin Description Pin Number Pin Name Description SOT23 TDFN 1 6 RESET An open-drain output that is driven to a low impedance state when RESET is asserted. RESET will remain low (asserted) for the reset period after both SENSE is above V IT and MR is set to a logic high. A pull-up resistor from 10kΩ to 1Mohm should be used on this pin, and allows the reset pin to attain voltages higher than VDD. 2 5 GND Ground. 3 4 MR Driving the manual reset pin ( MR ) low asserts RESET . MR is internally tied to VDD by a 90kohm pull-up resistor. 4 3 CT Reset period programming pin. Connection this pin to VDD through a 40k Ω to 200kΩ resistor for 300ms or leaving it open results in fixed delay times 20ms. And connecting this pin with a cap ≥ 100pF to ground a user-programmable delay time. 5 2 SENSE This pin is connected to the voltage to be monitored. If the voltage at this terminal drops below the threshold voltage VIT, then RESET is asserted. 6 1 VDD Supply Voltage. Place a 0.1uF ceramic capacitor close to this pin. - PAD Thermal Pad Thermal Pad. Connect to ground plane to enhance thermal performance of package.

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 4 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Maximum Ratings Recommended Operation Conditions Symbol Description Test Conditions Min. Typ. Max. Unit VDD Supply Voltage 1.7 6.5 V VIH Input High Voltage MR VDD V Input High Voltage for Open- drain RESET, SENSE 0 6.5 V VIL Input Low Voltage MR. 0.3VDD V TA Operating Temperature -40 125 ºC

Electrical Characteristics

Unless otherwise specified, -40°C ≤ TA ≤ 125°C, 1.7V ≤ VDD ≤ 6.5V, RRESET = 100kΩ, CRESET = 50Pf, Typical values are at TA = +25°C. Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Supply voltage 1.7 6.5 V IDD Supply current VDD = 3.3V, RESET not asserted, MR , RESET , CT open. 2.8 5.0 µA VDD = 6.5V, RESET not asserted, MR , RESET , CT open. 3.0 6.0 uA VPOR Power-up reset voltage * VOL = 0.2V, I RESET = 15µA 1.0 V VIT Negative-going input threshold PT7M3808G01 0.375 0.405 0.409 V PT7M3808G09 0.81 0.84 0.844 PT7M3808G12 1.092 1.12 1.126 PT7M3808G125 1.132 1.16 1.166 PT7M3808G15 1.373 1.4 1.407 PT7M3808G18 1.644 1.67 1.678 PT7M3808G19 1.745 1.77 1.779 PT7M3808G25 2.308 2.33 2.342 PT7M3808G30 2.770 2.79 2.804 PT7M3808G33 3.055 3.07 3.085 PT7M3808G50 4.604 4.65 4.697 Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the dev ice at these or any other conditions above those i ndicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 5 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Symbol Parameter Test Conditions Min. Typ. Max. Unit VHYS Hysteresis on VIT pin PT7M3808G01 1.5 3.0 %VIT Fixed versions 1 2.5 RMR MR Internal pull-up resistance 70 90 k ISENSE Input current at SENSE pin PT7M3808G01 VSENSE = VIT -25 25 nA Fixed versions VSENSE = 6.5V 1.8 µA IOH RESET Leakage Current V RESET = 6.5V, RESET not asserted 300 nA CIN Input capacitance, any pin CT pin VIN = 0V to VDD 5 pF Other pins VIN = 0V to 6.5V 5 VIL MR logic low input 0 0.3VDD V VIH MR logic High input 0.7VDD VDD V tW Input pulse width to RESET SENSE VIH = 1.05VIT, VIL = 0.95VIT 20 µs MR VIH = 0.7VDD, VIL = 0.3VDD 0.001 µs tD RESET delay time CT = open 12 20 28 ms CT = VDD 180 300 420 ms CT = 100pF 0.75 1.25 1.75 ms CT = 180nF 0.7 1.2 1.7 s tpHL Propagation delay MR to RESET VIH = 0.7VDD, VIL = 0.3VDD 150 ns High to low level RESET delay SENSE to RESET VIH = 1.05VIT, VIL = 0.95VIT 20 us Note: The lowest supply voltage (VDD) at which RESET becomes active. Trise(VDD)≥15us/V.

Document Number DS43298 Rev 8-2 6 © 2025 Copyright Diodes Incorporated. All Rights Reserved. Table 1. Truth Table

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 7 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Functional Description RESET Output SENSE Input Manual Reset ( MR ) Input

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 8 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Selecting the RESET Delay Time 300ms Delay 20ms Delay Delay (s) = CT (nF) + 0.5 x 10 −3 (s) 175 (a) (b) (c)

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 9 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Part Marking (1) SOT23-6 （TA） xX : Identification code W : Date Code (Workweek) 1st Y : Year Vertical line in front of top mark means Pin1 Bar about W means Cu wire 2nd Y : Die Rev xXYWY Part Number Package Code Package Identification Code Quantity PT7M3808G01TAE TA SOT23-6 tG 3000 PT7M3808G09TAE TA SOT23-6 uU 3000 PT7M3808G12TAE TA SOT23-6 uV 3000 PT7M3808G125TAE TA SOT23-6 uW 3000 PT7M3808G15TAE TA SOT23-6 uX 3000 PT7M3808G18TAE TA SOT23-6 uY 3000 PT7M3808G19TAE TA SOT23-6 uZ 3000 PT7M3808G25TAE TA SOT23-6 wA 3000 PT7M3808G30TAE TA SOT23-6 wB 3000 PT7M3808G33TAE TA SOT23-6 tH 3000 PT7M3808G50TAE TA SOT23-6 wC 3000 (2) TDFN-6 (ZC) xX Y Y W xX : Identification code W : Date Code (Workweek) 1st Y : Die Rev Bar about W means Cu wire 2nd Y : Year Part Number Package Code Package Identification Code Quantity PT7M3808G01ZCE ZC TDFN-6 tG 3000 PT7M3808G09ZCE ZC TDFN-6 uU 3000 PT7M3808G12ZCE ZC TDFN-6 uV 3000 PT7M3808G125ZCE ZC TDFN-6 uW 3000 PT7M3808G15ZCE ZC TDFN-6 uX 3000 PT7M3808G18ZCE ZC TDFN-6 uY 3000 PT7M3808G19ZCE ZC TDFN-6 uZ 3000 PT7M3808G25ZCE ZC TDFN-6 wA 3000 PT7M3808G30ZCE ZC TDFN-6 wB 3000 PT7M3808G33ZCE ZC TDFN-6 tH 3000 PT7M3808G50ZCE ZC TDFN-6 wC 3000

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 10 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 Packaging Mechanical 6-TDFN (ZC)

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 11 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 6-SOT23 (TA) For latest package info.

Ordering Information

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 4. E = Pb-free and Green 5. X suffix = Tape/Reel

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 12 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 TDFN Pin 1 Location in Tape and Reel SOT23-6 Pin 1 Location in Tape and Reel Function Comparison Table Product Nominal Supply Voltage SENSE Threshold Voltage (VIT) PT7M3808G01 adjustable 0.405V PT7M3808G09 0.9V 0.84V PT7M3808G12 1.2V 1.12V PT7M3808G125 1.25V 1.16V PT7M3808G15 1.5V 1.40V PT7M3808G18 1.8V 1.67V PT7M3808G19 1.9V 1.77V PT7M3808G25 2.5V 2.33V PT7M3808G30 3.0V 2.79V PT7M3808G33 3.3V 3.07V PT7M3808G50 5.0V 4.65V Mechanical Data

PT7M3808 www.diodes.com January 2025 Document Number DS43298 Rev 8-2 13 © 2025 Copyright Diodes Incorporated. All Rights Reserved. PT7M3808 IMPORTANT NOTICE 1. DIODES INCORPORATED (Diodes) AND ITS SUBSIDIARIES MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON -INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 2. The Information contained herein is for informational purpose only and is provided only to illustrate the operation of Diodes ’ products described herein and application examples. Diodes does not assume any liability arising out of the application or use of this document or any product described herein. This document is intended for skilled and technically trained engineering customers and users who design with Diodes’ products. Diodes’ products may be used to facilitate safety-related applications; however, in all instances customers and users are responsible for (a) selecting the appropriate Diodes products for their applications, (b) evaluating the suitability of Diodes’ products for their intended applications, (c) ensuring their ap plications, which incorporate Diodes’ products, comply the applicable legal and regulatory requirements as well as safety and functional -safety related standards, and (d) ensuring they design with appropriate safeguards (including testing, validation, quality control techniques, redundancy, malfunction prevention, a nd appropriate treatment for aging degradation) to minimize the risks associated with their applications. 3. Diodes assumes no liability for any application -related information, support, assistance or feedback that may be provided by Diodes from time to time. 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