EVAL-ADM1192EBZ【PDF 4/20 页】BOARD EVALUATION FOR ADM1192

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1页 2页 3页 [4页]5页 6页 7页 8页

ADM1192

Data Sheet

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

TIMER PIN

Pull-Up Current (Overcurrent Fault), I TIMERUPOC

Pull-Down Current, I TIMERDN

Pin Threshold High, V TIMERH

?46

1.275

?62

100

1.3

?78

1.325

μA

μA

V

(18.125 × V SENSE ) > V SETV , V TIMER = 1 V

Normal operation, V TIMER = 1 V

TIMER rising

ALERT PIN

Output Low Voltage, V ALERTOL

Input Current, I ALERT

?1

0.05

1

0.1

1.5

+1

V

mA

μA

I ALERT = ?100 μA

I ALERT = ?2 mA

V ALERT = V CC ; ALERT asserted

ADR PIN

Set Address to 00, V ADRLOWV

0

0.8

V

Low state

Set Address to 01, R ADRLOWZ

80

120

160

kΩ

Resistor to ground state, load pin with

specified resistance for 01 decode

Set Address to 10, I ADRHIGHZ

Set Address to 11, V ADRHIGHV

Input Current for 00 Decode, I ADRLOW

?0.3

2

?40

?25

+0.3

5.5

μA

V

μA

Open state, maximum load allowed on

ADR pin for 10 decode

High state

V ADR = 0 V to 0.8 V

Input Current for 11 Decode, I ADRHIGH

3

6

μA

V ADR = 2.0 V to 5.5 V

I C TIMING

2

Low Level Input Voltage, V IL

High Level Input Voltage, V IH

Low Level Output Voltage on SDA, V OL

0.7 V BUS

0.3 V BUS

0.4

V

V

V

V BUS = 3.0 V to 5.5 V

V BUS = 3.0 V to 5.5 V

I OL = 3 mA

Output Fall Time on SDA from V IHMIN to V ILMAX

Maximum Width of Spikes Suppressed by

Input Filtering on SDA Pin and SCL Pin

Input Current, I I , on SDA/SCL When Not

Driving a Logic Low Output

20 + 0.1 C BUS

50

?10

250

250

+10

ns

ns

μA

C BUS = bus capacitance from SDA to GND

Input Capacitance on SDA/SCL

SCL Clock Frequency, f SCL

Low Period of the SCL Clock

High Period of the SCL Clock

Setup Time for Repeated Start Condition, t SU;STA

600

1300

600

5

400

pF

kHz

ns

ns

ns

SDA Output Data Hold Time, t HD;DAT

100

900

ns

Setup Time for a Stop Condition, t SU;STO

Bus Free Time Between a Stop and a Start

Condition, t BUF

Capacitive Load for Each Bus Line

600

1300

400

ns

ns

pF

1

2

3

4

Monitoring accuracy is a measure of the error in a code that is read back for a particular voltage/current. This is a combination of amplifier error, reference error, ADC

error, and error in ADC full-scale code conversion factor.

This is an absolute value to be used when converting ADC codes to current readings; any inaccuracy in this value is factored into absolute current accuracy values (see the

Specifications for the Current Sense Absolute Accuracy parameter).

These are absolute values to be used when converting ADC codes to voltage readings; any inaccuracy in these values is factored into voltage accuracy values (see the

Specifications for the Voltage Sense Accuracy parameter).

Time between the receipt of the command byte and the actual ADC result being placed in the register.

Rev. D | Page 4 of 20

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