1997 Sep 29

10

Philips Semiconductors

Product specification

Line interrupter driver and ringer

UBA1702; UBA1702A

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

Notes

1. Continuous.

2. 2 kV surge:

a) according to IEC 805-1 part 5. Test generator 10

µs/700 µs according to CCITT (Rm1 = 15 Ω and Rm2 = 25 Ω).

b) pulse sequence > 60 s.

c) number of surges: 10.

d) polarity change after 5 surges.

e) test circuit in combination with 150 V Voltage Dependent Resistor (VDR) and a 3.9

Ω resistor connected in series

with the source of the PMOST interrupter (UBA1702).

THERMAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

maximum input/output switch driver voltage

(pins SDI or SDO)

DC; note 1

−

240

V

pulsed; note 2

−

400

V

maximum hook switch input voltage (pin EHI)

DC; note 1

−

240

V

pulsed; note 2

−

400

V

maximum voltage at all logic inputs

(pins DPI, MSI, RV0, RV1, RV2 and RMI)

maximum voltage at all other pins

−

24

V

maximum speech part input current (pin SPI)

−

150

mA

maximum ringer part input current (pin RPI)

−

70

mA

total power dissipation

UBA1702

−

1W

UBA1702T

−

0.625

W

IC storage temperature

−40

+150

°C

operating ambient temperature

−25

+75

°C

SYMBOL

PARAMETER

VALUE

UNIT

thermal resistance from junction to ambient in free air

UBA1702, UBA1702A

45

K/W

UBA1702T, UBA1702AT

70

K/W