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LAG640D

IC for Multifunction Telephones

Mitsumi 

MITSUMI

IC for Multifunction Telephones LAG640

Electrical Characteristics (Except where noted otherwise, Ta=25°C, VCC=30V)

Item

Measurement

Symbol

Measurement conditions Min. Typ. Max. Units

circuit

SWR unit

Output voltage (5V)

VO1

1

VCC=15~45V

IL=0~250mA

4.75 5.00 5.25 V

Output voltage (5V)

VO2

1

VCC=13~45V

IL=0~200mA

4.70 5.00 5.25 V

Output ripple voltage

Vr

1

IL=250mA

50 mVP-P

Reactive current

IL=0mA

ICCq

1

Amp & Transmission unit

6 10 mA

SWR oscillation frequency

FOSC

1

80

kHz

Output current on short-circuit IOS

1

RS=0.2Ω

70 110 150 mA

Power supply voltage detection unit

Detection voltage

VS

2

Detection drop voltage

VS

2

*

VS=Vo-VS

4.30 4.50 4.80 V

0.2

V

Output current while on

IRON

2

Vo=4V

10 20

mA

Leakage output current while off IROFF

2

Vo=5.25V

1 µA

Note:

* The asterisk ( ) indicates that the power supply voltage detection unit characteristics are standards in

the transient power on/off states. However, for convenience the detection voltage is taken to be the

value of V0 when V0 in measurement circuit 2 is varied and the pin 6 output state is switched from off

to on.

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