GMT G692L400TC, G692L308TC, G692L293TC, G692L263TC, G692H463TC Datasheet

Ver: 1.0

Sep 23, 2002

TEL: [phone]

http://www.gmt.com.tw

1

G692/G693

Global Mixed-mode Technology Inc.

4-Pin µP Voltage Monitors with Manual Reset Input

Features



Precision Monitoring of +3V, +3.3V, and +5V
Power-Supply Voltages



Fully Specified Over Temperature



Available in Three Output Configurations

Push-Pull

RESET Output (G692L)

Push-Pull RESET Output (G692H)

Open-Drain

RESET Output (G693L)



140ms min Power-On Reset Pulse Width



5µA Supply Current



Guaranteed Reset Valid to V

CC

= +1V



Power Supply Transient Immunity



No External Components



Manual Reset Input



4-Pin SOT143 Package

Applications



Computers



Controllers



Intelligent Instruments



Critical µP and µC Power Monitoring



Portable / Battery-Powered Equipment



Automotive

General Description

The G692/G693 are microprocessor (µP) supervisory
circuits used to monitor the power supplies in µP and
digital systems. They provide excellent circuit reliability
and low cost by eliminating external components and
adjustments when used with +5V, +3.3V, +3.0V- pow­ered circuits. The G692/G693 also provide a de­bounced manual reset input.

These circuits perform a single function: they assert a
reset signal whenever the V

CC

supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after V

CC

has risen above the reset
threshold. Reset thresholds suitable for operation with
a variety of supply voltages are available.

The G693L has an open-drain output stage, while the
G692 have push-pull outputs. The G693L’s open-drain

RESET output requires a pull-up resistor that can be

connected to a voltage higher than V

CC

. The G692L

have an active-low

RESET output, while the G692H
has an active-high RESET output. The reset com­parator is designed to ignore fast transients on V

CC

,
and the outputs are guaranteed to be in the correct
logic state for V

CC

down to 1V.

Low supply current makes the G692/G693 ideal for
use in portable equipment. The G692/G693 are avail­able in a 4-pin SOT143 packages.

Ordering Information

PART TEMP. RANGE PIN-PACKAGE

G692H(L)xxxTC -40°C ~ +105°C SOT143

G693LxxxTC -40°C ~ +105°C SOT143

* xxx specifies the threshold voltage.
e.g. 263 denotes the 2.63V threshold voltage.

Pin Configuration Typical Operating Circuit

RESET
INPUT

GND

µP

V

CC

RESET

(RESET)

GND

G692/G693

V

CC

R

PULL-UP

V

CC

*

*G693 ONLY

MR

V

CC

SOT143

G692/G693

4

GND

2

RESET(RESET)

MR

3

()is for G692H

1

RESET
INPUT

GND

µP

V

CC

RESET

(RESET)

GND

G692/G693

V

CC

R

PULL-UP

V

CC

*

*G693 ONLY

MR

RESET
INPUT

GND

µP

V

CC

RESET

(RESET)

GND

G692/G693

V

CC

R

PULL-UP

V

CC

*

*G693 ONLY

MR

V

CC

SOT143

G692/G693

4

GND

2

RESET(RESET)

MR

3

()is for G692H

1

V

CC

SOT143

G692/G693

4

GND

2

RESET(RESET)

MR

3

()is for G692H

1

Ver: 1.0

Sep 23, 2002

TEL: [phone]

http://www.gmt.com.tw

2

G692/G693

Global Mixed-mode Technology Inc.

Absolute Maximum Ratings

Terminal Voltage (with respect to GND)
V

CC

.……………………………..…….…….-0.3V to +6.0V

RESET,

RESET (push-pull)....…....-0.3V to (VCC + 0.3V)

RESET (open drain)...….......................-0.3V to +6.0V

Input Current, V

CC

............................….................20mA

Output Current, RESET,

RESET ........................20mA

Continuous Power Dissipation (T

A

= +70°C)

SOT 143 (derate 4mW/°C above +70°C)

….…...

.320mW

Operating Temperature Range …..…....-40°C to +105°C

Storage Temperature Range..….……....-65°C to +150°C

Lead Temperature (soldering, 10s) ……....…......+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause p’ermanent damage to the device. These are stress rat-

ings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of

the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Electrical Characteristics

(VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V
for 463/438/400 versions, V

CC

= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1)

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

T

A

= 0°C +70°C 1.0 5.5

VCC Range

T

A

= -40°C +105°C 1.2 5.5

V

V

CC

<5.5V, G69_ _463/438/400_ 5.5 9

Supply Current ICC TA = -40°C +105°C

V

CC

<3.6V, G69_ _308/293/263_ 5 8

µA

G69_ _463_

T

A

= +25°C 4.537 4.63 4.722

G69_ _438_

T

A

= +25°C 4.292 4.38 4.467

G69_ _400_

T

A

= +25°C 3.92 4.00 4.08

G69_ _308_

T

A

= +25°C 3.018 3.08 3.141

G69_ _293_

T

A

= +25°C 2.871 2.93 2.988

Reset Threshold VTH

G69_ _263_

T

A

= +25°C 2.577 2.63 2.682

V

Ver: 1.0

Sep 23, 2002

TEL: [phone]

http://www.gmt.com.tw

3

G692/G693

Global Mixed-mode Technology Inc.

Electrical Characteristics

(Continued)
(VCC = full range, TA = -40°C to +105°C, unless otherwise noted. Typical values are at TA = +25°C, VCC = 5V
for 463/438/400 versions, V

CC

= 3.3V for 308/293 versions, and VCC = 3V for 263 version.) (Note 1)

PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS

Reset Threshold Tempco 70 ppm/°C
VCC to Reset Delay (Note 2) VCC = VTH to (VTH – 100mV) 15

VCC = VTH max, G69_ _ 463/438/400 250 510 720

Reset Active Timeout Period

V

CC

= VTH max, G69_ _308/293/263 140 310 520

ms

MR

Minima Pulse Width

t

MR

10 µs

MR

Glitch Immunity (Note 3)

100 ns

MR

to Reset Propagation Delay

(Note 2)

t

MD

0.5 µs

VIH 0.6 x VCC

MR

Input Threshold

V

IL

V

CC

> V

TH(max)

0

.25 x VCC

V

MR

Pull-up Resistance

10 20 30 KΩ

RESET

Output Current Low

(push-pull active low, and open­drain active-low, G692L and G693L)

I

OL

V

CC

= 2.5V, V

RESET

= 0.5V

8 mA

VCC = 5V, V

RESET

= 4.5V, G692L463/438/400

4.5

VCC = 3.3V, V

RESET

= 2.8V, G692L308/293

3

RESET

Output Current High

(push-pull active low, G692L)

I

OH

V

CC

= 3V, V

RESET

= 2.5V, G692L263

2

mA

VCC = 5V, V

RESET

= 0.5V, G692H463/438/400 16

VCC = 3.3V, V

RESET

= 0.5V, G692H308/293 12

RESET Output Current Low
(push-pull active high, G692H)

I

OL

V

CC

= 3V, V

RESET

= 0.5V, G692H263 10

mA

RESET Output Current High
(push-pull active high, G692H)

I

OH

VCC = 2.5V, V

RESET

= 2V 2 mA

RESET

Open-Drain Output Leakage

Current (G693L)

V

CC

> VTH,

RESET

deasserted

1 µA

Note 1: Production testing done at TA = +25°C; limits over temperature guaranteed by design.

Note 2:

RESET output is for G692L/G693L; While RESET output is for G692H.

Note 3: “Glitches” of 100ns or less typically will not generate a reset pulse.

Selector Guide

PART/SUFFIX RESET THRESHOLD (V) OUTPUT TYPE

TOP MARK

G693L463T_ 4.63

Open-Drain

RESET

693Fx

G693L438T_ 4.38

Open-Drain

RESET

693Ex

G693L400T_ 4.00

Open-Drain

RESET

693Dx

G693L308T_ 3.08

Open-Drain

RESET

693Cx

G693L293T_ 2.93

Open-Drain

RESET

693Bx

G693L263T_ 2.63

Open-Drain

RESET

693Ax

G692H463T_ 4.63 Push-Pull RESET 692Lx
G692H438T_ 4.38 Push-Pull RESET 692Kx
G692H400T_ 4.00 Push-Pull RESET 692Jx
G692H308T_ 3.08 Push-Pull RESET 692Ix
G692H293T_ 2.93 Push-Pull RESET 692Hx
G692H263T_ 2.63 Push-Pull RESET 692Gx

G692L463T_ 4.63

Push-Pull

RESET

692Fx

G692L438T_ 4.38

Push-Pull

RESET

692Ex

G692L400T_ 4.00

Push-Pull

RESET

692Dx

G692L308T_ 3.08

Push-Pull

RESET

692Cx

G692L293T_ 2.93

Push-Pull

RESET

692Bx

G692L263T_ 2.63

Push-Pull

RESET

692Ax