Data Sheet
March 26, 2008
JHC/JHW350 Power Module; dc-dc Converter
18 – 36Vdc or 36 – 75Vdc Input; 28Vdc Output; 350W
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Remote On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to V
IN-
terminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On
Logic Low Specification
Remote On/Off Current – Logic Low
On/Off Voltage:
Logic Low
Logic High – (Typ = Open Collector)
Logic High maximum allowable leakage current
Turn-On Delay and Rise Times
(I
O
=I
O, max
)
T
delay
= Time until V
O
= 10% of V
O,set
from either
application of Vin with Remote On/Off set to On or
operation of Remote On/Off from Off to On with Vin
already applied for at least one second.
T
rise
= time for V
O
to rise from 10% of V
O,set
to 90%
of V
O,set
.
All
All
All
V
on/off
V
on/off
I
on/off
0.0
⎯
⎯
⎯
__
⎯
0.5
5
50
V
V
μA
All
I
on/off
⎯
0.15
1.0
mA
Device
Symbol
Min
Typ
Max
Unit
R
T
delay
⎯
40
⎯
ms
All
T
rise
⎯
50
⎯
ms
Output Voltage Adjustment
(See Feature Descriptions)
Output Voltage Set-point Adjustment Range (trim)
All
V
trim
90
__
110
%V
O, nom
Output Voltage Remote-sense Range
(See Feature Descriptions)
Output Overvoltage Protection
Overtemperature Protection
(See Feature Descriptions)
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
Turn-on Threshold
Turn-off Threshold
Hysteresis
All
V
sense
__
__
5
%V
O, nom
R
All
V
O, limit
T
ref
V
IN, UVLO
31
⎯
__
110
38
⎯
V
°C
JHC350R
JHC350R
JHC350R
JHW350R
JHW350R
JHW350R
⎯
31
---
15.5
17.5
16.5
1
35
33
2
18
V
V
V
36
⎯
---
V
V
V
LINEAGE
POWER
5
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
