DS1817R-20-U+ datasheet, PDF - EEWORLD Datasheet

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DS1817R-20-U+: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, +2.55VV, CMOS, PDSO3, 0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN; CategoryPower/power management The power supply circuit; File Size113KB，5 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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DS1817R-20-U+ Overview

Power Supply Support Circuit, Fixed, 1 Channel, +2.55VV, CMOS, PDSO3, 0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN

DS1817R-20-U+ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	SOT-23
package instruction	0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN
Contacts	3
Reach Compliance Code	compliant
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G3
JESD-609 code	e3
length	2.92 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	3
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TO-236
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	1.2/5.5 V
Certification status	Not Qualified
Maximum seat height	1.12 mm
Maximum supply current (Isup)	0.035 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1.2 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Threshold voltage nominal	+2.55V
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.3 mm

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DS1817

Active High 3.3V EconoReset

www.maxim-ic.com

FEATURES

Automatically restarts a microprocessor after

power failure

Maintains reset for 150 ms after V

returns

to an in-tolerance condition

Reduces need for discrete components

Precision temperature-compensated voltage

reference and voltage sensor

Accurate 5%, 10% or 20% power monitoring

20% tolerance for use with 3.0-volt systems

Low-cost TO-92 or space saving surface

mount SOT-23 packages available

Push-pull active high output

Operating temperature -40°C to +85°C

PIN ASSIGNMENT

DALLAS

DS1817

Econo

Reset

1 2 3

BOTTOM VIEW

TO-92 PACKAGE

See Mech.

Drawings Section

On Website

TOP VIEW

SOT-23 PACKAGE

See Mech.

Drawings Section

On Website

PIN DESCRIPTION

TO-92

RST

GND

Active High Reset Output

Power Supply

Ground

SOT-23

RST

GND

Active High Reset Output

Power Supply

Ground

DESCRIPTION

The DS1817 EconoReset uses a precision temperature reference and comparator circuit to monitor the

status of the power supply (V

). When an out-of-tolerance condition is detected, an internal power-fail

signal is generated which forces reset to the active state. When V

returns to an in-tolerance condition,

the reset signal is kept in the active state for approximately 150 ms to allow the power supply and

processor to stabilize.

1 of 5

041002

DS1817R-20-U+ Related Products

	DS1817R-20-U+	DS1817R-5-U+	DS1817R-10-U+
Description	Power Supply Support Circuit, Fixed, 1 Channel, +2.55VV, CMOS, PDSO3, 0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN	Power Supply Support Circuit, Fixed, 1 Channel, +3.06VV, CMOS, PDSO3, 0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN	Power Supply Support Circuit, Fixed, 1 Channel, +2.88VV, CMOS, PDSO3, 0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN
Is it lead-free?	Lead free	Lead free	Lead free
Is it Rohs certified?	conform to	conform to	conform to
Maker	Maxim	Maxim	Maxim
Parts packaging code	SOT-23	SOT-23	SOT-23
package instruction	0.50 INCH, ROHS COMPLIANT, SOT-23, 3 PIN	TSSOP, TO-236	TSSOP, TO-236
Contacts	3	3	3
Reach Compliance Code	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99
Adjustable threshold	NO	NO	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G3	R-PDSO-G3	R-PDSO-G3
JESD-609 code	e3	e3	e3
length	2.92 mm	2.92 mm	2.92 mm
Humidity sensitivity level	1	1	1
Number of channels	1	1	1
Number of functions	1	1	1
Number of terminals	3	3	3
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSSOP	TSSOP	TSSOP
Encapsulate equivalent code	TO-236	TO-236	TO-236
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260
power supply	1.2/5.5 V	1.2/5.5 V	1.2/5.5 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.12 mm	1.12 mm	1.12 mm
Maximum supply current (Isup)	0.035 mA	0.035 mA	0.035 mA
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	1.2 V	1.2 V	1.2 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES
technology	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	MATTE TIN	MATTE TIN
Terminal form	GULL WING	GULL WING	GULL WING
Terminal pitch	0.95 mm	0.95 mm	0.95 mm
Terminal location	DUAL	DUAL	DUAL
Threshold voltage nominal	+2.55V	+3.06V	+2.88V
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	30
width	1.3 mm	1.3 mm	1.3 mm
Factory Lead Time	-	1 week	1 week

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