PT2248 データシートの表示（PDF） - Princeton Technology

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PT2248

Infrared Remote Control Transmitter

Princeton Technology 

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

Infrared Remote Control Transmitter

PT2248

ABSOLUTE MAXIMUM RATINGS

(Ta=25℃)

Parameter

Symbol

Ratings

Unit

Supply Voltage

Vcc

5.5

V

Input/Output Voltage

VIN

Vss-0.5 to Vcc+0.5

V

Power Dissipation

Operating Temperature

Pd

Topr

200

mV

-40 ~ +85

℃

Storage Temperature

Tstg

-65~+150

℃

Txout Output Current

Iout

-5

mA

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, Vcc=3V, Ta=25℃)

Parameter

Symbol Conditions Min. Typ. Max. Unit

Operating Supply Voltage

Vcc

All Function

Operations

2.2

- 5.0 V

Operating Supply Voltage

Icc

Key On Without

Load

-

- 1.0 mA

Stand-by Current

ISTB

All Keys Off,

Stops oscillation

-

1.0 10 µA

K1~K6

Voltage

“H”

Level

VIH

-

0.8Vcc - Vcc V

Input

CODE

K1~K6

Current

“L”

Level

“H”

Level

“L”

Level

VIL

IIH

IIL

-

VI=3.0V

VI=0V

0

- 0.5 V

20 40 60 µA

-1.0 - 1.0 µA

T1~T3 Current

Output

/TXOUT Current

“H”

Level

“L”

Level

“H”

Level

‘L”

Level

IOH

IOL

IOH

IOL

OSC Feedback Resistor

Rf

Vo=2.0V

Vo=2.0V

Vo=2.0V

Vo=2.0V

-

-500 -

- µA

30

-

- µA

-0.1 -

- mA

1.0

-

- mA

-

500 - KΩ

Oscillation Frequency

fosc

-

400 455 600 KHz

PT2248 V2.7

- 10 -

June, 2005

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