TCM809 datasheet(2/4 Pages) TELCOM

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TELCOM SEMICONDUCTOR, INC.

PRELIMINARY INFORMATION

3-PIN

µP RESET MONITORS

TCM809

TCM810

ABSOLUTE MAXIMUM RATINGS*

Supply Voltage (VCC to GND) ................................ +6.0V

RESET, RESET ............................ – 0.3V to (VCC + 0.3V)

Input Current, VCC.. ..................................................20mA

Output Current, RESET, RESET ............................. 20mA

dV/dt (VCC) .......................................................... 100V/µS

Operating Temperature Range ............... – 40

°C to +85°C

Power Dissipation (TA ≤ 70°C)

SOT-23B-3 (derate 4mW/

°C above +70°C) ...230mW

Storage Temperature Range ................ – 65

°C to +150°C

Lead Temperature (Soldering, 10 sec) ................. +260

°C

*This is a stress rating only and functional operation of the device at these

or any other conditions above 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 = 5V, TA = Operating Temperature Range unless otherwise noted.

Symbol Parameter

Test Conditions

Min

Typ

Max

Unit

VCC Range

TA = 0°C to +70°C

1.0

—

5.5

TA = – 40°C to +85°C

1.2

—

5.5

ICC

Supply Current

TCM8xxL/M: VCC < 5.5V

—

µA

TCM8xxR/S/T: VCC < 3.6V

—

VTH

Reset Threshold

(Note 2)

TCM8xxL: TA = +25°C

4.56

4.63

4.70

TA = – 40°C to +85°C

4.50

—

4.75

TCM8xxM: TA = +25°C

4.31

4.38

4.45

TA = – 40°C to +85°C

4.25

—

4.50

TCM8xxT: TA = +25°C

3.04

3.08

3.11

TA = – 40°C to +85°C

3.00

—

3.15

TCM8xxS: TA = +25°C

2.89

2.93

2.96

TA = – 40°C to +85°C

2.85

—

3.00

TCM8xxR: TA = +25°C

2.59

2.63

2.66

TA = – 40°C to +85°C

2.55

—

2.70

Reset Threshold Tempco

—

ppm/

°C

VCC to Reset Delay

(Note 2)

VCC = VTH to (VTH – 100mV)

—

µsec

Reset Active Timeout Period

140

240

560

msec

VOL

RESET Output Voltage Low

TCM809R/S/T: VCC = VTH min, ISINK = 1.2mA

—

0.3

(TCM809)

TCM809L/M: VCC = VTH min, ISINK = 3.2mA

—

0.4

VCC > 1.0V, ISINK = 50µA

—

0.3

VOH

RESET Output Voltage High

TCM809R/S/T: VCC > VTH max, ISOURCE = 500µA

0.8 VCC

——

(TCM809)

TCM809L/M: VCC > VTH max, ISOURCE = 800µAVCC – 1.5

—

VOL

RESET Output Voltage Low

TCM810R/S/T: VCC = VTH max, ISINK = 1.2mA

—

0.3

(TCM810)

TCM810L/M: VCC = VTH max, ISINK = 3.2mA

—

0.4

VOH

RESET Output Voltage High

1.8 < VCC < VTH min, ISOURCE = 150µA

0.8 VCC

——

(TCM810)

NOTES:

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

2. RESET output for TCM809, RESET Output for TCM810.

PIN DESCRIPTION

Pin No.

(SOT-23B-3)

Symbol

Description

GND

Ground

RESET (TCM809)

RESET output remains low while VCC is below the reset voltage threshold, and

for 240msec (140msec min.) after VCC rises above reset threshold.

RESET (TCM810)

RESET output remains high while VCC is below the reset voltage threshold,

and for 240msec (140msec min.) after VCC rises above reset threshold.

3VCC

Supply voltage (Typ. +3.0V to +5.0V)

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