AMC7834 datasheet(8/93 Pages) TI1

Part #	AMC7834

Description	AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities

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8

AMC7834

SLAS972B – NOVEMBER 2014 – REVISED MARCH 2016

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(1)

The value of the DVDD pin must be equal to that of the AVDD pins.

(2)

The value of the AVSS pin is only equal to AGND when all bipolar DACs are set to operate in positive voltage ranges.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

NOM

MAX

UNIT

Supply voltage

AVDD

(1)

4.5

5

5.5

V

DVDD

(1)

4.5

5

5.5

IOVDD

1.7

3.3

3.6

AVCC

4.5

5

12.5

AVSS

(2)

–5.5

–5

0

PAVDD

4

5

20

Specified performance temperature

–40

25

105

°C

Operating temperature

–40

25

125

°C

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

(2)

TI strongly recommends to solder the device thermal pad to a board plane connected to the AVSS pin.

6.4 Thermal Information

THERMAL METRIC(1)(2)

RTQ (VQFN)

UNIT

56 PINS

RθJA

Junction-to-ambient thermal resistance

24.7

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

7.9

RθJB

Junction-to-board thermal resistance

2.7

ψJT

Junction-to-top characterization parameter

0.2

ψJB

Junction-to-board characterization parameter

2.7

RθJC(bot)

Junction-to-case (bottom) thermal resistance

0.3

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