10 Watt TC Single Series DC/DC Converters
Description
Features
!
These single output converters are designed for wide input
range, low noise, telecommunications, industrial control,
medical and instrument applications. The extra wide input
range(3:1)isidealforbatteryorunregulatedinputapplications.
Extra Wide 3:1 Input Voltage Range, 20-60 VDC
!
Low Noise, Highly Regulated Single Outputs
!
Efficiency 75% for All Line Conditions
These converters are state-of-the-art 120kHz MOSFET
baseddesignsthatprovideoutstandinglineandloadregulation.
!
No Derating to 80°C Case Temperature
!
Six-Sided Shielded Low Thermal Gradient
Copper Case
The single outputs are regulated with a high loop gain current
mode control method that provides linear regulator type
performance.
!
500 VDC Minimum Input to Output Isolation
Also included is an open collector TTL/CMOS compatible
logic shutdown pin to control converter operation.
!
Overvoltage Protected Input and Outputs
!
Pulse by Pulse Digital Current Limiting
The TC Single Series is protected from output shorts to
common by a high speed, pulse by pulse digital, current limit
circuit and a thermal overload sensing circuit.
!
Overtemperature Protection Circuit
!
5 Year Warranty
Selection Chart
Input Range
Outputs
VDC
Outputs
mA
VDC
Model
MIN
20.0
20.0
20.0
MAX
60.0
60.0
60.0
48S5.2000TC
48S12.850TC
48S15.700TC
5
2000
850
12
15
700
10 Watt TC Single Series Block Diagram
SHIELDED
ISOLATION TRANSFORMER
THERMAL SHUTDOWN
A
+ OUTPUT
4
D
C
C
+ INPUT
- INPUT
3
2
CMN
TRIM
5
7
CURRENT
MODE
PWM
ISOLATED
FEEDBACK
ON/OFF
1
Output
5
C
D
136 µF
20 µF
20 µF
6.8V
LOW TC
12
15V
18V
BANDGAP REFERENCE
15
SIX-SIDED SHIELDED COPPER CASE
Manufacturing Company, Inc. • Concord, California 94520 • Ph: 925/687-4411 or 800/542-3355 • Fax: 925/687-3333 • www.calex.com • Email: sales@calex.com
1