LANC242.5W12 Datasheet, PDF (2/14 Pages) Wall Industries,Inc. – DC/DC Converter 18-36 VDC Input 2.5 VDC Output at 3.5A

TECHNICAL DATASHEET
LANC242.5W12
Technical Specifications
Model No. LANC242.5W12
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
24
36 Vdc
Input Voltage (Continuous)
40 Vdc
Input Voltage (Transient 100ms)
50 Vdc
UVLO Turn-on Threshold
18
Vdc
UVLO Turn-off Threshold
16
Vdc
Input Standby Current
Nominal Vin and No Load
36
mA
Input Voltage Variation
Complies with EST300 132 part 4.4
5 V/ms
Input Current
Nominal Vin and Full Load
461 mA
Reflected Ripple Current
5 to 20MHz, 12µH source impedance
(See the Test Setup section - pg 8)
20
mA_pk-pk
EFFICIENCY
Test at nominal Vin and full load
(See the Test Setup section – pg 8)
83
%
OUTPUT (V_o)
Operating Output Range
Nominal Vin and Full Load
2.47 2.5 2.53 Vdc
Load Regulation
0% to 100% Full Load
-1.0
+1.0 %
Line Regulation
LL to HL at Full Load
-0.2
+0.2 %
Output Ripple & Noise
5Hz to 20MHz bandwidth
(See the Test Setup section - pg 8)
85 mV_pk-pk
Output Current
0
3.5 A
Output Voltage Overshoot
LL to HL at Full Load
0
3 % Vout
Over Voltage Protection
Zener diode clamp
3.9
Vdc
Over Current Protection
150
% FL
Short Circuit Protection
Continuous, automatic recovery
DYNAMIC LOAD RESPONSE
Test at nominal Vin
Peak Deviation
Load step change from 75 to 100% or 100 to 75 % of FL
200
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)
ON/OFF pin High Voltage (Remote ON)
3.0
12 Vdc
ON/OFF pin Low Voltage (Remote OFF)
0
1.2 Vdc
ON/OFF pin Low Voltage, input current
2.5 mA
START UP TIME
Test at nominal Vin and constant resistive load
Power Up
450
ms
Remote ON/OFF
5
ms
ISOLATION
Isolation Voltage (Input-Output)
1600
Vdc
Isolation Voltage (Output to Case–DIP Type)
1600
Vdc
Isolation Voltage (Output to Case–SMT Type)
1000
Vdc
Isolation Voltage (Input to Case - DIP Type)
1600
Vdc
Isolation Voltage (Input to Case - SMT Type)
1000
Vdc
Isolation Resistance
1
GΩ
Isolation Capacitance
1200 pF
ENVIRONMENTAL
Operating Ambient Temperature (w/ derating)
Operating Case Temperature
Storage Temperature
Temperature Coefficient
-40
-55
-0.02
85
100
105
+0.02
o_C
o_C
o_C
% / ^oC
MTBF
See the MTBF and Reliability section (pg 13)
Bellcore TR-NWT-000332, T_C=40°C
2,750,000
hours
MIL-STD-217F
1,080,000
hours
MECHANICAL
See Figure 1
Weight
18.0
grams
Dimensions
1.25 x 0.8 x 0.450
inches
(888) 597-WALL
www.wallindustries.com
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