
ADDC27008PB
REV. 0
–3–
PRELIMINARY
DATA
Parameter is guaranteed by design and characterization
testing.
Parameter is a typical value only.
All devices are 100% production tested at +25
°
C. 100%
production tested at temperature extremes for military
temperature devices; guaranteed by design and
characterization testing for industrial devices.
TECHNICAL
13
15
16
17
C AUT ION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
T herefore, proper ESD precautions are recommended to avoid performance degradation or loss
of functionality.
ABSOLUT E MAX IMUM RAT INGS*
INHIBIT . . . . . . . . . . . . . . . . . . . . . . . . . 450 V dc, –0.5 V dc
SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0 V dc, –0.5 V dc
I
SHARE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V dc, –0.5 V dc
T EMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 V dc, –0.3 V dc
Common-Mode Voltage, Input to Output . . . . . . . . . 500 V dc
Lead Soldering T emp (10 sec) . . . . . . . . . . . . . . . . . . . +300
°
C
Storage T emperature . . . . . . . . . . . . . . . . . . –65
°
C to +150
°
C
Maximum Junction T emperature . . . . . . . . . . . . . . . . +150
°
C
Maximum Case Operating T emperature . . . . . . . . . . . +125
°
C
*Absolute maximum ratings are limiting values, to be applied individually, and
beyond which the serviceability of the circuit may be impaired. Functional
operability under any of these conditions is not necessarily implied. Exposure of
absolute maximum rating conditions for extended periods of time may affect device
reliability.
ORDE RING GUIDE
Operating
T emperature
Range (Case)
Device
Description
ADDC27008PBK V
ADDC27008PBT V
ADDC27008PBT V/QMLE* –55
°
C to +125
°
C
–40
°
C to +85
°
C
–55
°
C to +90
°
C
Hermetic Package
Hermetic Package
Hermetic Package
*Contact factory for Standard Microcircuit Drawing number and availability.
E X PLANAT ION OF T E ST LE VE LS
T est Level
I
–
II
–
100% production tested.
100% production tested at +25
°
C, and sample tested at
specified temperatures.
Sample tested only.
III –
IV –
V
VI –
–
PIN DE SCRIPT IONS
Pin
No.
Name
Function
1
–SENSE
Feedback loop connection for remote sensing
output voltage. Must always be connected to
output return for proper operation.
Feedback loop connection for remote sensing
output voltage. Must always be connected to
+V
OUT
for proper operation.
Adjusts output voltage setpoint.
Indicates output voltage is within
±
5% of
nominal. Active high referenced to –SENSE
(Pin 1).
Low level dc auxiliary voltage supply refer-
Power Supply Inhibit. Active low and refer-
enced to input return (Pin 10).
units; referenced to input return (Pin 10).
Current share pin which allows paralleled
units to share current typically within
±
5% at
full load; referenced to input return (Pin 10).
Case temperature indicator and temperature
shutdown override; referenced to input return
(Pin 10).
Input Return.
+270 V Nominal Input Bus.
+8 V dc Output.
+8 V dc Output.
+8 V dc Output.
Output Return.
Output Return.
Output Return.
2
+SENSE
3
4
ADJUST
ST AT US
5
V
AUX
6
INHIBIT
8
I
SHARE
9
T EMP
10
12
–V
IN
+V
OUT
+V
OUT
+V
OUT
RET URN
RET URN
RET URN
PIN CONFIGURAT ION
1
11
12
17
TOP
VIEW
WARNING!
ESD SENSITIVE DEVICE