10 Watt TC Single Series DC/DC Converters
Features
!
!
!
!
!
Description
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) is ideal for battery or unregulated input applications.
These converters are state-of-the-art 120kHz MOSFET
based designs that provide outstanding line and load regulation.
The single outputs are regulated with a high loop gain current
mode control method that provides linear regulator type
performance.
Also included is an open collector TTL/CMOS compatible
logic shutdown pin to control converter operation.
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.
Extra Wide 3:1 Input Voltage Range, 20-60 VDC
Low Noise, Highly Regulated Single Outputs
Efficiency 75% for All Line Conditions
No Derating to 80擄C Case Temperature
Six-Sided Shielded Low Thermal Gradient
Copper Case
500 VDC Minimum Input to Output Isolation
Overvoltage Protected Input and Outputs
Pulse by Pulse Digital Current Limiting
Overtemperature Protection Circuit
5 Year Warranty
!
!
!
!
!
Selection Chart
Model
48S5.2000TC
48S12.850TC
48S15.700TC
Input Range
VDC
MIN
MAX
20.0
20.0
20.0
60.0
60.0
60.0
Outputs
VDC
5
12
15
Outputs
mA
2000
850
700
10 Watt TC Single Series Block Diagram
SHIELDED
ISOLATION TRANSFORMER
THERMAL SHUTDOWN
A
C
C
D
4 + OUTPUT
+ INPUT 3
- INPUT 2
CURRENT
MODE
PWM
5 CMN
7 TRIM
ON/OFF 1
Output
C
D
ISOLATED
FEEDBACK
5
12
15
136 碌F
20 碌F
20 碌F
6.8V
15V
18V
SIX-SIDED SHIELDED COPPER CASE
LOW TC
BANDGAP REFERENCE
Manufacturing Company, Inc.
鈥?Concord, California 94520 鈥?Ph: 925/687-4411 or 800/542-3355 鈥?Fax: 925/687-3333 鈥?www.calex.com 鈥?Email: sales@calex.com
1
D-106
1
2
3
4
