MAX6746KA46-T datasheet, PDF - EEWORLD Datasheet

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MAX6746KA46-T: DescriptionPower Supply Management Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN; CategoryPower/power management The power supply circuit; File Size208KB，14 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

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MAX6746KA46-T Overview

Power Supply Management Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN

MAX6746KA46-T Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Maxim
Parts packaging code	SOT-23
package instruction	SOT-23, 8 PIN
Contacts	8
Reach Compliance Code	not_compliant
ECCN code	EAR99
Other features	RESET THRESHOLD VOLTAGE IS 4.625V
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code	R-PDSO-G8
JESD-609 code	e0
length	2.9 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	8
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	TSSOP8,.1
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	245
power supply	1.2/5.5 V
Certification status	Not Qualified
Maximum seat height	1.45 mm
Maximum supply current (Isup)	0.01 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1.2 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	BICMOS
Temperature level	AUTOMOTIVE
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.625 mm

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19-2530; Rev 2; 8/03

µP Reset Circuits with Capacitor-Adjustable

Reset/Watchdog Timeout Delay

General Description

The MAX6746–MAX6753 low-power microprocessor

(µP) supervisory circuits monitor single/dual system

supply voltages from 1.575V to 5V and provide maxi-

mum adjustability for reset and watchdog functions.

These devices assert a reset signal whenever the V

supply voltage or RESET IN falls below its reset thresh-

old or when manual reset is pulled low. The reset output

remains asserted for the reset timeout period after V

and RESET IN rise above the reset threshold. The reset

function features immunity to power-supply transients.

The MAX6746–MAX6753 have ±2% factory-trimmed

reset threshold voltages in approximately 100mV incre-

ments from 1.575V to 5.0V and/or adjustable reset

threshold voltages using external resistors.

The reset and watchdog delays are adjustable with

external capacitors. The MAX6746–MAX6751 contain a

watchdog select input that extends the watchdog time-

out period by 128x. The MAX6752/MAX6753 contain a

window watchdog timer that looks for activity outside an

expected window of operation.

The MAX6746–MAX6753 are available with a push-pull

or open-drain active-low

RESET

output. The MAX6746–

MAX6753 are available in an 8-pin SOT23 package and

are fully specified over the automotive temperature

range (-40°C to +125°C).

Features

Factory-Set Reset Threshold Options from 1.575V

to 5V in ~100mV Increments

Adjustable Reset Threshold Options

Single/Dual Voltage Monitoring

Capacitor-Adjustable Reset Timeout

Capacitor-Adjustable Watchdog Timeout

Min/Max (Windowed) Watchdog Option

Manual Reset Input Option

Guaranteed

RESET

Valid for V

≥

3.7µA Supply Current

Push-Pull or Open-Drain

RESET

Output Options

Power-Supply Transient Immunity

Small 8-Pin SOT23 Packages

MAX6746–MAX6753

Ordering Information

PART

MAX6746KA_

_-T

MAX6747KA_

_-T

MAX6748KA-T

MAX6749KA-T

MAX6750KA_

_-T

MAX6751KA_

_-T

MAX6752KA_

_-T

MAX6753KA_

_-T

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

8 SOT23-8

Applications

Medical Equipment

Automotive

Intelligent Instruments

Portable Equipment

Battery-Powered

Computers/Controllers

Embedded Controllers

Critical µP Monitoring

Set-Top Boxes

Computers

Pin Configurations

TOP VIEW

RESET IN (MR) 1

SWT

SRT

RESET

WDI

WDS

Note:

“_ _” represents the two number suffix needed when

ordering the reset threshold voltage value for the

MAX6746/MAX6747 and MAX6750–MAX6753. The reset

threshold voltages are available in approximately 100mV incre-

ments. Table 2 contains the suffix and reset factory-trimmed

voltages. All devices are available in tape-and-reel only. There

is a 2500-piece minimum order increment for standard ver-

sions (see Table 3). Sample stock is typically held on standard

versions only. Nonstandard versions require a minimum order

increment of 10,000 pieces. Contact factory for availability.

MAX6746–

MAX6751

GND 4

Selector Guide appears at end of data sheet.

Typical Operating Circuit appears at end of data sheet.

SOT23-8

( ) ARE FOR MAX6746 AND MAX6747 ONLY.

Pin Configurations continued at end of data sheet.

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX6746KA46-T Related Products

	MAX6746KA46-T	MAX6746KA16-T	MAX6751KA23-T	MAX6751KA26-T	MAX6753KA16-T
Description	Power Supply Management Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN	Power Supply Management Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN	Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN	Power Supply Management Circuit, Fixed, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN	Power Supply Management Circuit, Adjustable, 1 Channel, BICMOS, PDSO8, SOT-23, 8 PIN
Is it lead-free?	Contains lead	Contains lead	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible	incompatible	incompatible	incompatible
Maker	Maxim	Maxim	Maxim	Maxim	Maxim
Parts packaging code	SOT-23	SOT-23	SOT-23	SOT-23	SOT-23
package instruction	SOT-23, 8 PIN	SOT-23, 8 PIN	SOT-23, 8 PIN	SOT-23, 8 PIN	SOT-23, 8 PIN
Contacts	8	8	8	8	8
Reach Compliance Code	not_compliant	not_compliant	not_compliant	not_compliant	not_compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99
Other features	RESET THRESHOLD VOLTAGE IS 4.625V	RESET THRESHOLD VOLTAGE IS 1.575V	RESET THRESHOLD VOLTAGE IS 2.313V	RESET THRESHOLD VOLTAGE IS 2.625V	RESET THRESHOLD VOLTAGE IS 1.575V
Adjustable threshold	YES	YES	NO	NO	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT	POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 code	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8
JESD-609 code	e0	e0	e0	e0	e0
length	2.9 mm	2.9 mm	2.9 mm	2.9 mm	2.9 mm
Humidity sensitivity level	1	1	1	1	1
Number of channels	1	1	1	1	1
Number of functions	1	1	2	2	1
Number of terminals	8	8	8	8	8
Maximum operating temperature	125 °C	125 °C	125 °C	125 °C	125 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LSSOP	LSSOP	LSSOP	LSSOP	LSSOP
Encapsulate equivalent code	TSSOP8,.1	TSSOP8,.1	TSSOP8,.1	TSSOP8,.1	TSSOP8,.1
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	245	245	245	245	245
power supply	1.2/5.5 V	1.2/5.5 V	1.2/5.5 V	1.2/5.5 V	1.2/5.5 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.45 mm	1.45 mm	1.45 mm	1.45 mm	1.45 mm
Maximum supply current (Isup)	0.01 mA	0.01 mA	0.01 mA	0.01 mA	0.01 mA
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum supply voltage (Vsup)	1.2 V	1.2 V	1.2 V	1.2 V	1.2 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V
surface mount	YES	YES	YES	YES	YES
technology	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED
width	1.625 mm	1.625 mm	1.625 mm	1.625 mm	1.625 mm

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