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Car0812dc series dc-dc converter, Data sheet, Input: -36v – GE Industrial Solutions CAR0812DC Series User Manual

Page 5: Output: +12 v, Or 5 v, Feature specifications (continued), Digital interface specifications

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GE

Data Sheet

CAR0812DC Series DC-DC Converter

Input: -36V

DC

to -75V

DC

; Output: +12 V

DC

@ 850W; 3.3V

DC

or 5 V

DC

@ 1A

April 23, 2013

©2013 General Electric Company. All rights reserved.

Page 5

Feature Specifications (continued)

Parameter

Symbol

Min

Typ

Max

Unit

SMBAlert# (Interrupt) (Needs to be pulled HI via an external

i t )

Logic High (No Alert - normal)

I

OH

20 µA

V

OH

0.7V

DD

12 V

DC

Logic Low (Alert is set)

I

OL

4 mA

V

OL

0

0.4 V

DC

Output current monitor (Imon)

Resolution

40

mV/A

Measurement range

I

OUT

0 80

A

DC

Analog output range

V

mon

0 3

V

DC

Sourced output current

I

OUT

5

mA

DC

Digital Interface Specifications

Parameter

Conditions

Symbol

Min

Typ

Max

Unit

PMBus Signal Interface Characteristics
Input Logic High Voltage (CLK, DATA)

V

IH

2.1 3.6 V

DC

Input Logic Low Voltage (CLK, DATA)

V

IL

0 0.8 V

DC

Input high sourced current (CLK, DATA)

I

IH

0 10 μA

Output Low sink Voltage (CLK, DATA, SMBALERT#)

I

OUT

=3.5mA V

OL

0.4 V

DC

Output Low sink current (CLK, DATA, SMBALERT#)

I

OL

3.5

mA

Output High open drain leakage current
(CLK,DATA, SMBALERT#)

V

OUT

=3.6V I

OH

0 10 μA

PMBus Operating frequency range

Slave Mode

F

PMB

10 400 kHz

Measurement System Characteristics (all measurement tolerances are typical estimations under normal operating conditions)
Clock stretching

t

STRETCH

25 ms

I

OUT

measurement range

Linear

I

RNG

0 80 A

DC

I

OUT

measurement accuracy 25°C

I

ACC

-3

+3

% of FL

V

OUT

measurement range

Linear

V

OUT(rng)

0

14

V

DC

V

OUT

measurement accuracy

V

OUT(acc)

-3 +3 %

Temp measurement range

Linear

Temp

(rng)

0

120

C

Temp measurement accuracy

4

Temp

(acc)

-5 +5

C

V

IN

measurement range

Linear

V

IN(rng)

0

80 V

DC

V

IN

measurement accuracy

V

IN(acc)

-3 +3 %

Fan Speed measurement range

Linear

0

30k

RPM

Fan Speed measurement accuracy

-5

5

%

Fan speed control range

-direct-

0

100

%

4

Temperature accuracy reduces non-linearly with decreasing temperature