DS1817-20 datasheet, PDF - EEWORLD Datasheet

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DS1817-20: Description1-CHANNEL POWER SUPPLY SUPPORT CKT, BCY3; CategoryPower/power management The power supply circuit; File Size50KB，5 Pages; ManufacturerDALLAS; Websitehttp://www.dalsemi.com

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DS1817-20 Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, BCY3

DS1817-20 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	DALLAS
package instruction	TO-92, 3 PIN
Reach Compliance Code	unknow
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	O-PBCY-T3
JESD-609 code	e0
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
Encapsulate equivalent code	SIP3,.1,50
Package shape	ROUND
Package form	CYLINDRICAL
power supply	1.2/5.5 V
Certification status	Not Qualified
Maximum supply current (Isup)	0.035 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)
Nominal supply voltage (Vsup)	3.3 V
surface mount	NO
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	THROUGH-HOLE
Terminal pitch	1.27 mm
Terminal location	BOTTOM
Threshold voltage nominal	+2.55V

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DS1817

Active High 3.3V EconoReset

www.dalsemi.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

SOT-23 PACKAGE

See Mech. Drawing

1 2 3

TO-92 PACKAGE

See Mech. Drawing

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

111999

DS1817-20 Related Products

	DS1817-20	DS1817-10	DS1817-5	DS1817
Description	1-CHANNEL POWER SUPPLY SUPPORT CKT, BCY3	Active High 3.3V EconoReset	Active High 3.3V EconoReset	Active High 3.3V EconoReset
Is it Rohs certified?	incompatible	incompatible	incompatible	-
Maker	DALLAS	DALLAS	DALLAS	-
package instruction	TO-92, 3 PIN	TO-92, 3 PIN	TO-92, 3 PIN	-
Reach Compliance Code	unknow	unknow	unknow	-
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	O-PBCY-T3	O-PBCY-T3	O-PBCY-T3	-
JESD-609 code	e0	e0	e0	-
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	-
Encapsulate equivalent code	SIP3,.1,50	SIP3,.1,50	SIP3,.1,50	-
Package shape	ROUND	ROUND	ROUND	-
Package form	CYLINDRICAL	CYLINDRICAL	CYLINDRICAL	-
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 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	-
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	-
surface mount	NO	NO	NO	-
technology	CMOS	CMOS	CMOS	-
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	-
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	-
Terminal form	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	-
Terminal pitch	1.27 mm	1.27 mm	1.27 mm	-
Terminal location	BOTTOM	BOTTOM	BOTTOM	-
Threshold voltage nominal	+2.55V	+2.88V	+3.06V	-

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