AM79R70SC datasheet(6/20 Pages) AMD

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Am79R70 Data Sheet

ABSOLUTE MAXIMUM RATINGS

Storage temperature ......................... –55°C to +150°C

VCC with respect to AGND/DGND .......... 0.4 V to +7 V

VNEG with respect to AGND/DGND ...... 0.4 V to VBAT2

VBAT2 ....................................................VBAT1 to GND

VBAT1 with respect to AGND/DGND:

Continuous..................................... +0.4 V to –80 V

10 ms ............................................. +0.4 V to –85 V

BGND with respect to AGND/DGND........ +3 V to –3 V

A(TIP) or B(RING) to BGND:

Continuous ...............................VBAT1 –5 V to +1 V

10 ms (f = 0.1 Hz) ..................VBAT1 –10 V to +5 V

1 µs (f = 0.1 Hz) .....................VBAT1 –15 V to +8 V

250 ns (f = 0.1 Hz) ...............VBAT1 –20 V to +12 V

Current from A(TIP) or B(RING).....................±150 mA

RYOUT1, RYOUT2 current................................ 75 mA

RYOUT1, RYOUT2 voltage ..................... RYE to +7 V

RYOUT1, RYOUT2 transient ................. RYE to +10 V

RYE voltage ........................................ BGND to VBAT1

C3–C1, D2–D1, E1, B2EN, and RINGIN

Input voltage .........................–0.4 V to VCC + 0.4 V

Maximum power dissipation, continuous,

TA = 70°C, No heat sink (See note):

In 32-pin PLCC package.............................. 1.67 W

In 28-pin SOIC package .............................. 1.25 W

Thermal Data:

................................................................ θJA

In 32-pin PLCC package....................... 45°C/W typ

In 28-pin SOIC package ........................ 60

°C/W typ

Note: Thermal limiting circuitry on chip will shut down the

circuit at a junction temperature of about 165°C. The device

should never see this temperature and operation above 145°C

junction temperature may degrade device reliability. See the

SLIC Packaging Considerations for more information.

Stresses above those listed under Absolute Maximum Ratings

may cause permanent device failure. Functionality at or above

these limits is not implied. Exposure to Absolute Maximum

Ratings for extended periods may affect device reliability.

OPERATING RANGES

Commercial (C) Devices

Ambient temperature ............................. 0°C to +70°C*

VCC ..................................................... 4.75 V to 5.25 V

VNEG ..................................................–4.75 V to VBAT2

VBAT1.................................................... –40 V to –67 V

VBAT2....................................................–19 V to VBAT1

AGND/DGND.......................................................... 0 V

BGND with respect to

AGND/DGND ........................ –100 mV to +100 mV

Load resistance on VTX to ground .............. 20 k

Ω min

The Operating Ranges define those limits between which the

functionality of the device is guaranteed.

* Functionality of the device from 0

°C to +70°C is guaranteed

by production testing.

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