JFW48S12-1300 Datasheet, PDF (2/16 Pages) Wall Industries,Inc. – DC/DC Converter

TECHNICAL DATASHEET
JFW48S12-1300
Technical Specifications
Model No. JFW48S12-1300
All specifications are based on 25 ^oC, Nominal Input Voltage and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
Related condition
Min Nom Max Unit
Switching Frequency
Test at nominal Vin and full load
400
kHz
INPUT (V_in)
Operating Voltage Range
18
48
75 Vdc
Input Voltage (Continuous)
75 Vdc
Input Voltage (Transient 100ms)
100 Vdc
UVLO Turn-on Threshold
18 Vdc
UVLO Turn-off Threshold
16
Vdc
Input Standby Current
Nominal Vin and No Load
15
mA
Input Voltage Variation
Complies with EST300 132 part 4.4
5 V/ms
Input Current
Nominal Vin and Full Load
392 mA
Reflected Ripple Current
5 to 20MHz, 12µH source impedance
(See the Test Setup section - pg 9)
30
mA_pk-pk
Remote Off Input Current
2.5
mA
Input Current of Remote Control Pin
-0.5
1.0 mA
EFFICIENCY
Test at nominal Vin and full load
(See the Test Setup section – pg 9)
87
%
OUTPUT (V_o)
Operating Output Range
Nominal Vin and Full Load
11.88
-1%
12
12.12
+1%
Vdc
Voltage Adjustment
See the External Trim Adjustment section (pg 6)
10.8
-10%
12
13.2
+10%
Vdc
Load Regulation
0% to 100% Full Load
-0.2
+0.2 %
Line Regulation
LL to HL at Full Load
-0.2
+0.2 %
Output Ripple & Noise
1uF Ceramic & 10uF Tantalum at 20MHz bandwidth
(See the Test Setup section - pg 9)
100
mV_pk-pk
Output Current
0
1.3 A
Output Voltage Overshoot
LL to HL at Full Load
3 % Vout
Over Voltage Protection
Voltage clamped
13.8
17.5 Vdc
Over Current Protection
150
% FL
Short Circuit Protection
Hiccup, automatic recovery
DYNAMIC LOAD RESPONSE
Test at nominal Vin
Peak Deviation
Load step change from 75 to 100% or 100 to 75 % of FL
300
mV
Setting Time (Vout < 10% peak deviation)
250
µs
REMOTE ON/OFF
The ON/OFF pin voltage is referenced to -Vin
(See the Remote ON/OFF Control section - pg 5)
Negative Logic DC-DC ON (Short)
0
1.2 Vdc
DC-DC OFF (Open)
3
12 Vdc
Positive Logic DC-DC ON (Open)
3
12 Vdc
DC-DC OFF (Short)
0
1.2 Vdc
START UP TIME
Test at nominal Vin and constant resistive load
Power Up
30
ms
Remote ON/OFF
30
ms
ISOLATION
Isolation Voltage (Input-Output)
2250
Vdc
Isolation Resistance
10
GΩ
Isolation Capacitance
1000 pF
ENVIRONMENTAL
Operating Ambient Temperature (w/ derating)
Storage Temperature
Temperature Coefficient
-40
-55
-0.02
+85
+125
+0.02
o_C
o_C
% / ^oC
MTBF
See the MTBF and Reliability section (pg 15)
Bellcore TR-NWT-000332, T_C=40°C
MIL-STD-217F
1,322,000
514,700
hours
hours
MECHANICAL
See Figure 1
Weight
10.5
grams
Dimensions
1.10 x 0.94 x 0.335
inches
(888) 597-WALL
www.wallindustries.com
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