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® DCP0124
DCP0124
DCP0124
Series
Miniature 24V Input, 1W Isolated
UNREGULATED DC/DC CONVERTERS
FEATURES
q STANDARD JEDEC PLASTIC PACKAGE
q LOW PROFILE: 0.15" (3.8mm)
q SYNCHRONIZABLE
q OUTPUT SHORT CIRCUIT PROTECTION
q THERMAL SHUTDOWN
q STARTS INTO ANY CAPACITIVE LOAD
q EFFICIENCY: 76% (±15V Out)
q 1000Vrms ISOLATION
q 400kHz SWITCHING
q 93 MILLION HOURS MTTF
q AVAILABLE IN TAPE AND REEL
DESCRIPTION
The DCP0124 family is a series of high efficiency,
24V input isolated DC/DC converters. In addition to
1W nominal galvanically isolated output power capa-
bility, the range of DC/DCs are also fully
synchronizable. The devices feature thermal shutdown,
and overload protection is implemented via watchdog
circuitry. Advanced power-on reset techniques give
superior reset performance and the devices will start
into any capacitive load up to full power output.
The DCP01 family is implemented in standard-molded
IC packaging, giving outlines suitable for high volume
assembly.
APPLICATIONS
q POINT OF USE POWER CONVERSION
q GROUND LOOP ELIMINATION
q DATA ACQUISITION
q INDUSTRIAL CONTROL AND
INSTRUMENTATION
q TEST EQUIPMENT
800kHz
Oscillator
SYNCIN
÷2
Reset
Watch-dog/
start-up
Power
Stage
SYNCOUT
VOUT
0V
PSU
Thermal
Shutdown
IBIAS
VS
Power Controller IC
0V
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1997 Burr-Brown Corporation
PDS-1383C
Printed in U.S.A. February, 1999

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SPECIFICATIONS
At TA = +25°C, VS = +24V, unless otherwise specified.
DCP0124 SERIES
PARAMETER
CONDITIONS
MIN TYP MAX
OUTPUT
Power
Voltage (VNOM)(1)
DCP012405
DCP012415D (+V)
DCP012415D (–V)
Voltage vs Temperature
Short Circuit Duration
Ripple
INPUT
Nominal Voltage (VS)
Voltage Range
Supply Current
Reflected Ripple Current
ISOLATION
Voltage(2)
Continuous Voltage(3)
Insulation Resistance
Input/Output Capacitance
LOAD REGULATION
DCP012405
DCP012415D
SWITCHING/SYNCHRONIZATION
Oscillator Frequency (fOSC)
Sync Input Low
Sync Input Current
Reset Time
SYNCOUT Frequency
GENERAL
No Load Current
DCP012405
DCP012415D
Efficiency
DCP012405
DCP012415D
MTTF(3)
Weight
THERMAL SHUTDOWN
Die Temperature
Shutdown Current
TEMPERATURE RANGE
Operating
VS + 4%
100% Full Load
75% Full Load
75% Full Load
75% Full Load
VS ± 10%
CL = O/P Capacitor = 11µF
100% Full Load
4.75
+14.25
–12
Indefinite
100% Full Load
CIN = I/P Capacitor = 1µF
50% Full Load
1s Flash Test
–10
1
10% to 100% Load
10% to 75% Load
75% to 100% Load
10% to 100% Load
10% to 25% Load
25% to 75% Load
75% to 100% Load
Switching Frequency = fOSC/2
VSYNC = +2V
0
1
0.92
5
+15
–15
±0.08
25
24
59
8
1
>1
2.5
17
9
–4
22
11
8
–4
800
48
3.8
400
0% Full Load
0% Full Load
100% Full Load
10% Full Load
100% Full Load
10% Full Load
TA = +85°C
TA = +55°C
TA = +25°C
14-Pin PDIP
136,000
2,630,000
92,600,000
115
–40
14
17
65
34
76
36
1.08
3
5.25
+15.75
–15.75
10
23
35
0.8
140
100
NOTES: (1) 100 % load current = 1W/VNOM typical. (2) Rated working voltage = 130Vrms (IEC950 convention). (3) Life test data.
UNITS
W
W
V
V
V
%/°C
mVp-p
V
%
mA
mArms
kVrms
kVrms
G
pF
%
%
%
%
%
%
%
kHz
V
µA
µs
kHz
mA
mA
%
%
%
%
hrs
hrs
hrs
g
°C
mA
°C
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
DCP0124
2

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PIN CONFIGURATION (Single)
Top View
DIP
VS 1
0V 2
14 SYNCIN
0V 5
+VOUT 6
NC 7
DCP0124
8 SYNCOUT
PIN CONFIGURATION (Dual)
Top View
DIP
VS 1
0V 2
14 SYNCIN
0V 5
+VOUT 6
–VOUT 7
DCP0124
8 SYNCOUT
PIN DEFINITION (Single)
PIN # PIN NAME DESCRIPTION
1 VS Voltage Input.
2 0V Input Side Common.
5 0V Output Side Common.
6
+VOUT
+Voltage Out.
7 NC No Connection.
8
SYNCOUT
Unregulated 400kHz Output from Transformer.
14
SYNCIN
Synchronization Pin.
PIN DEFINITION (Dual)
PIN # PIN NAME DESCRIPTION
1 VS Voltage Input.
2 0V Input Side Common.
5 0V Output Side Common.
6
+VOUT
+Voltage Out.
7
–VOUT
–Voltage Out.
8
SYNCOUT
Unregulated 400kHz Output from Transformer.
14
SYNCIN
Synchronization Pin.
ABSOLUTE MAXIMUM RATINGS
Input Voltage ........................................................................................ 29V
Storage Temperature ...................................................... –60°C to +150°C
Lead Temperature (soldering, 10s) ................................................. 300°C
ORDERING INFORMATION
Basic Model Number: 1W Product
Voltage Input:
24V In
Voltage Output:
5V Out
Dual Output:
Package Code:
P = 14-Pin Plastic DIP
P-U = 14-Pin Plastic Dip Gull Wing
DCP01 24 05 ( D ) ( )
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
PACKAGE/ORDERING INFORMATION
PRODUCT
Single
DCP012405
DCP012405
"
Dual
DCP012415D
DCP012415D
"
PACKAGE
14-Pin PDIP
14-Pin PDIP Gull Wing
"
14-Pin PDIP
14-Pin PDIP Gull Wing
"
PACKAGE
DRAWING
NUMBER(1)
010-1
010-2
"
010-1
010-2
"
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER(2)
TRANSPORT
MEDIA
–40°C to +100°C
–40°C to +100°C
"
–40°C to +100°C
–40°C to +100°C
"
DCP012405P
DCP012405P-U
"
DCP012415DP
DCP012415DP-U
"
DCP012405P
DCP012405P-U
DCP012405P-U/700
Rails
Rails
Tape and Reel
DCP012415DP
DCP012415DP-U
DCP012415DP-U/700
Rails
Rails
Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/) are
available only in Tape and Reel in the quantities indicated (e.g., /700 indicates 700 devices per reel). Ordering 700 pieces of DCP012405P-U/700 will get a single
700-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
®
3 DCP0124

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TYPICAL PERFORMANCE CURVES
At TA = +25°C, unless otherwise noted.
70
65
60
55
50
45
40
35
30
10
DCP012405
EFFICIENCY vs LOAD
25 50 75
Load (%)
100
80
75
70
65
60
55
50
45
40
35
30
10
DCP012415D
EFFICIENCY vs LOAD
25 50 75
Load (%)
100
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
0
DCP012405
OUTPUT VOLTAGE vs LOAD
10 20 30 40 50 60 70 80 90 100
Load (%)
18.5
18.0
17.5
17.0
16.5
16.0
15.5
15.0
14.5
14.0
10
DCP012415D
OUTPUT VOLTAGE vs LOAD
+VOUT
–VOUT
25 50 75
Load (%)
100
500
450
400
350
300
250
200
150
100
50
0
0
PEAK-TO-PEAK RIPPLE VOLTAGE vs LOAD
CL = 100nF
CL = 1.1µF
CL = 11µF
10 20 30 40 50 60 70 80 90 100
Load (%)
REFLECTED rms RIPPLE CURRENT vs LOAD
140
120
100
80 CIN = 100µF
60
40
CIN = 1µF
20
0
0 10 20 30 40 50 60 70 80 90 100
Load (%)
®
DCP0124
4

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TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, unless otherwise noted.
DCP012405
OUTPUT VOLTAGE vs INPUT VOLTAGE (75% Load)
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
21.6
22.8
24.0
Input Voltage (V)
25.2
26.4
17.5
DCP012415D
OUTPUT VOLTAGE vs INPUT VOLTAGE (75% Load)
17.0
16.5
–VOUT
16.0
15.5
15.0
14.5
14.0
+VOUT
13.5
13.0
21 22 23 24 25 26 27
Input Voltage (V)
101
100
99
98
97
96
95
94
93
92
–40
SWITCHING FREQUENCY vs TEMPERATURE
–20 0 20 40 60 80 100
Temperature (°C)
120
20
15
10
5
0
–5
–10
–15
–20
100
DCP012415D
LOAD BALANCE (+VOUT LOAD = 100%)
+VOUT
–VOUT
75 50
–VOUT Load (%)
10
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–40
OUTPUT POWER vs TEMPERATURE
–20 0
20 40
60 80
Temperature (°C)
100
20
15
10
5
0
–5
–10
–15
–20
150
DCP012415D
LOAD BALANCE (+VOUT LOAD = 10%)
+VOUT
–VOUT
100 75
–VOUT Load (%)
50
10
®
5 DCP0124