ST20

VER : D_1
update : 2012.04.18
Encapsulated DC-DC Converter
ST20 SERIES
20 Watts
KEY FEATURES
„ Power Module for PCB Mountable
„ 2:1 Input Range
„ Synchronous Rectifier Topology
„ Regulated Output
„ Low Ripple and Noise
„ Screw Terminal For Optional
„ Remote ON/OFF Control (Optional)
„ Standard 2” x 1” Package and Pinout
„ CE, UL Approval
„ 3-Years Product Warranty
ELECTRICAL SPECIFICATIONS
Model No.
Max. Output Wattage (W)
Input Voltage (V.DC.)
Outut Voltage (V.DC.)
ST20-24-2.5S
12.5W
24V (18-36V)
2.5V / 4000mA
ST20-24-3.3S
14W
24V (18-36V)
3.3V / 4000mA
ST20-24-5S
20W
24V (18-36V)
5V / 4000mA
Efficiency
83%
86%
87%
Model No.
Max. Output Wattage (W)
Input Voltage (V.DC.)
Outut Voltage (V.DC.)
ST20-48-2.5S
12.5W
48V (36-75V)
2.5V / 4000mA
ST20-48-3.3S
14W
48V (36-75V)
3.3V / 4000mA
ST20-48-5S
20W
48V (36-75V)
5V / 4000mA
Efficiency
83%
86%
87%
Model No.
ST20-24-2.5S
ST20-24-3.3S
ST20-24-5S
ST20-48-2.5S
ST20-48-3.3S
ST20-48-5S
Max Output Wattage (W)
Input
Input Filter
Voltage (V.DC.)
Voltage Accuracy
Current (mA) max
Line Regulation (LL-HL) (typ.)
Output
Load Regulation (10-100%) (typ.)
Ripple
Noise
Efficiency
Switching Frequency
Over Power Protection
Over Voltage Protection
Protection
Short Circuit Protection
Transient Response
Voltage
Isolation
Resistance
Capacitance
Operating Temperature
Storage Temperature
Case Temperature
Environment
Temperature Coefficient
Humidity
MTBF
Dimension (L x W x H)
Case Material
Physical
Weight
Cooling Method
Safety
Agency Approvals
EMC
EMI (Conducted & Radiated Emission)
12.5W
14W
20W
12.5W
14W
20W
π type
2.5
3.3
5
2.5
±2%
4000
4000
4000
4000
±0.5%
±1%
110mV max (Vp-p)
200mV max (Vp-p)
83%
86%
87%
83%
400KHz
Works over 120% of rating and recovers automatically.
Zener diode clamp
Current limit, auto-recovery
≦500 us (100% to 50% full load at ±1% error band)
1600 VDC.
3.3
5
4000
4000
86%
87%
108 ohms
1000 pF
-25°C…+70°C (with derating)
-55°C…+105°C
+100°C max.
±0.02% Per°C
95% RH
>550,000 h @ 25°C (MIL-HDBK-217F)
1.97 x 1.0 x 0.425 Inches ( 50.1 x 25.4 x 10.8 mm ) Tolerance ±0.5 mm
Six-side shielded Aluminum with Non-Conductive base, Black Anodize
32 g
Free-air convection
CE, UL
EN 55022 class A
1.All specifications valid at normal input voltage, full load and +25°C after warm-up time unless otherwise stated.
2.Ripple & Noise are measured at 20MHz of bandwidth with 0.1UF & 47UF parallel capacitor.
http://www.archcorp.com.tw
TEL: +886-2-26989508 FAX: +886-2-26981319
-1-
VER : D_1
update : 2012.04.18
Encapsulated DC-DC Converter
ST20 SERIES
MECHANICAL DIMENSION
20 Watts
( Top View )
PIN#
Single
1
ON / OFF CTL (Optional)
2
-DC IN
3
+DC IN
4
-DC OUT
5
NO PIN
6
+DC OUT
DERATING
BLOCK DIAGRAM
http://www.archcorp.com.tw
TEL: +886-2-26989508 FAX: +886-2-26981319
-2-
VER : D_1
update : 2012.04.18
Encapsulated DC-DC Converter
ST20 SERIES
20 Watts
SCREW TERMINAL
ST20-A2
PIN#
Single
Dual
1
CTRL
CTRL
2
-DC IN
-DC IN
3
+DC IN
+DC IN
4.
-DC OUT
-DC OUT
5
NO CONNECT
NO CONNECT
6
NO CONNECT
COMMON
7
NO CONNECT
NO CONNECT
8
+DC OUT
+DC OUT
PIN#
Single
Dual
1
CTRL
CTRL
ST20-A5
2
-DC IN
-DC IN
3
+DC IN
+DC IN
4.
-DC OUT
-DC OUT
5
NO CONNECT
NO CONNECT
6
NO CONNECT
COMMON
7
NO CONNECT
NO CONNECT
8
+DC OUT
+DC OUT
http://www.archcorp.com.tw
TEL: +886-2-26989508 FAX: +886-2-26981319
-3-