Interpoint HR40 Dc/dc converters 28 volt input Datasheet

FEATURES
•
•
•
•
•
•
•
•
•
•
–40°C to +85°C operation
16 to 32 VDC input voltage
Fully isolated
Opto-coupler feedback
Switching frequency
Single and dual outputs
typical 80 kHz, variable freq.
Triple output 200 kHz, fixed
Topology – Flyback
Inhibit function
Indefinite short circuit protection
Up to 75% efficiency
Requires external capacitors
HR40 SERIES
4 WATT
DC/DC CONVERTERS
28 VOLT INPUT
MODELS
VDC OUTPUT
SINGLE
DUAL
TRIPLE
5
±12
+5 & ±12
±15
+5 & ±15
Size (max.): 1.075 x 1.075 x 0.370 inches (27.31 x 27.31 x 9.40 mm)
See Section B8, case C2, for dimensions.
Weight:
20 grams maximum
Screening: Standard only. See Section C2 for screening description.
DESCRIPTION
The HR40 Series™ DC/DC converters offer the high efficiencies
associated with switching regulators, yet have full isolation of input
and output grounds. The units are built using thick-film hybrid technology and are sealed in metal packages for high-reliability applications. All models are guaranteed to pass a gross leak test (maximum
leak rate of 1 x 10-3 atm-cc/sec).
An open collector TTL inhibit is provided to allow power shutdown
and startup from a logic input. An open circuit on the inhibit terminal
(pin 15) gives normal operation, and a TTL low level shuts down the
converter. The inhibit pin has an open circuit voltage of 12 to 28 V.
Input current in the shutdown mode will be less than 15 mA. Current
limiting is provided on each output for indefinite short circuit protection.
The HR40 Series devices are flyback energy storage switching
regulators which require a minimum of components resulting in
small package size. Single and dual models self-oscillate at an
operating frequency which is an approximate inverse function of the
load. At full load, the frequency is typically 80 kHz for single and dual
output models. Triple output models operate at a fixed frequency of
approximately 200 kHz. A transformer in the forward power circuit
and an opto-coupler in the feedback/control loop maintain input to
output isolation.
Due to the high efficiency, heat sinking requirements are minimized,
but consideration should be given to removing self-generated heat
when operating these devices at maximum ratings. To increase
dissipation, heat conducting material (PCB, copper sheet, heat sink,
etc.) should be brought into contact with the converter’s baseplate.
The converter can be operated at full load at a case temperature of
85°C, with the output power derated linearly to zero at 105°C.
Models are available with single 5 volt, dual 12 or 15 volt, or triple
(+5 and either ±12 or ±15) outputs with an input voltage range of 16
to 32 VDC. Output power of up to 4 watts is available from the dual
output models for either balanced or unbalanced loads; however, at
least 25% of the total load should be on the positive output. The
single output device can provide 3.5 watts, and the triple output can
supply up to 3.2 watts. The high efficiency is almost constant over
the entire input voltage range and from approximately 25% of full
load to full load. This makes the unit ideal for battery applications.
WARNING: EXTERNAL CAPACITORS REQUIRED
External capacitors are required on the outputs. Operating the unit
without external capacitors will result in damage to the internal
circuitry. Minimum recommended capacitor values are given in
Tables 1 and 2. For optimum performance, low ESR (Equivalent
Series Resistance) solid tantalum capacitors are required. The
specifications on the following pages are based on the use of highquality solid tantalums. Operation with different types of capacitors
will seriously affect performance.
B4-51
HR40 SERIES
4 WATT
DC/DC CONVERTERS
INHIBIT
ABSOLUTE MAXIMUM RATINGS
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient
• HR41-2805 100 ppm/°C typ, 200 max.
• HR42-28XX 50 ppm/°C typ.
• HR43-28XX 100 ppm/°C typ.
Input to Output Capacitance
• 60 pF typical
Isolation
• 100 megohm minimum at 500 V
Conversion Frequency
• Single and dual output models, 80 kHz at
full load typical, variable frequency
• Triple output models, 200 kHz typical
fixed frequency
Inhibit Pin Voltage (unit enabled)
• 12 to 28 V
Inhibit TTL Open Collector
• Logic low (output disabled) ≤ 0.8 V
• Referenced to input common
• Logic high (output enabled) ≥ 12 V
Input Voltage
• 16 to 32 VDC
Output Power
• 3.2 to 4 watts depending on model
Lead Soldering Temperature (10 sec)
• 300°C
Storage Temperature Range (Case)
• –40°C to +125°C
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 32 VDC continuous
• 40 V for 50 ms transient
Case Operating Temperature (Tc)
• –40°C to +85°C full power
• –40°C to +105°C absolute
Derating Output Power/Current
• Linearly from 100% at 85°C to 0% at 105°C
WARNING: EXTERNAL CAPACITORS REQUIRED
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
SINGLE AND DUAL OUTPUT MODELS
PARAMETER1
HR41-2805
HR42-2812
HR42-2815
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
POUT = 2 W
4.90
5.0
5.10
±11.88
±12
±12.12
±14.85
±15
±15.15
VDC
OUTPUT CURRENT
18 TO 32 VIN
—
—
700
—
—
±167
—
—
±133
mA
Tc = –40°C TO +85°C
—
—
3.5
—
—
4.0
—
—
4.0
W
BW = 1 MHz
—
75
150
—
75
150
—
75
150
mV p-p
LINE REGULATION
18 - 32 VIN, POUT = 2 W
—
5
10
—
10
20
—
10
20
mV
LOAD REGULATION
NO LOAD TO FULL
—
25
50
—
12
24
—
12
24
mV
Tc = –40°C TO +85°C
16
28
32
16
28
32
16
28
32
VDC
TRANSIENT 50 ms
—
—
40
—
—
40
—
—
40
V
NO LOAD
—
7
10
—
10
15
—
10
15
OUTPUT POWER2
OUTPUT RIPPLE
INPUT VOLTAGE
INPUT CURRENT
EFFICIENCY
FULL LOAD
—
—
192
—
—
213
—
—
213
INHIBITED
—
—
15
—
—
15
—
—
15
FULL LOAD
68
72
—
70
75
—
70
75
—
Notes
1. External capacitors required to prevent damage to internal circuitry (see
Table 1 for specifications).
mA
%
2. Dual output models deliver up to 4 watts total for balanced or unbalanced
loads, however, the positive output should carry at least 25% of the total load.
SINGLE AND DUAL OUTPUT EXTERNAL CAPACITORS
OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY.
TABLE 1: EXTERNAL CAPACITOR REQUIREMENTS
Required
Connection
Positive Output (12 & 13) to
Output Common (8 & 9)
Positive Output (10) to
2
Dual Outputs
Output Common (8)
HR42-2812
External Capacitor (14) to
and
Output Common (8)3
HR42-2815
Negative Output (12) to
Output Common (8)
Model
Single Output
HR41-2805
Minimum
Capacitor Value1
220 µF, 10 V
100 µF, 25 V
100 µF, 25 V
10 µF, 25 V
Table 1 Notes
1. Capacitors should be high quality, low ESR components —
solid tantalum is recommended.
2. See Figure 1 for connection diagram
3. Place positive side of capacitor toward pin 8.
B4-52
FEEDBACK
POSITIVE
INPUT
1, 2
INHIBIT
15
17, 18
INPUT
COMMON
POSITIVE
OUTPUT
10
LOGIC
OUTPUT
COMMON
8
TIMING
CONTROL
SWITCH
+
+
VOLTAGE
REGULATOR
NEGATIVE
OUTPUT
12
EXTERNAL
CAPACITORS
100µF
10µF
+
100µF
14
EXTERNAL
CAPACITOR
TERMINAL
FIGURE 1: DUAL OUTPUT EXTERNAL CAPACITOR CONNECTIONS
HR40 SERIES
4 WATT
DC/DC CONVERTERS
WARNING: EXTERNAL CAPACITORS REQUIRED
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
TRIPLE OUTPUT MODELS
HR43-2812
PARAMETER1
CONDITIONS
POUT = 2 W
OUTPUT VOLTAGE
BALANCED LOAD
2
OUTPUT CURRENT
OUTPUT POWER
OUTPUT RIPPLE
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
18 TO 32 VIN
HR43-2815
MIN
TYP
MAX
MIN
TYP
MAX
MAIN
4.9
5.0
5.1
4.9
5.0
5.1
AUX
±11.5
±12.0
±12.5
±14.5
MAIN
10.0
—
400
10.0
—
400
AUX
—
—
±50.0
—
—
±40.0
Tc = –40°C TO +85°C
VDC
±15.0 ±15.5
—
—
3.2
—
—
3.2
MAIN
—
50
100
—
50
100
± AUX
—
50
100
—
50
100
BW DC TO 1 MHz
UNITS
mA
W
mV p-p
POUT = 2 W
MAIN
—
5
10
—
5
10
18 TO 32 VIN
± AUX
—
3
6
—
3
7.5
MAIN
—
15
30
—
15
30
± AUX
—
15
30
—
12
24
Tc = –40°C TO +85°C
16
28
32
16
28
32
VDC
TRANSIENT 50 ms
—
—
40
—
—
40
V
NO LOAD
—
10
20
—
10
20
NO LOAD TO FULL
INPUT CURRENT
EFFICIENCY
FULL LOAD
—
—
176
—
—
176
INHIBITED
—
—
15
—
—
15
FULL LOAD
68
70
—
68
70
—
mV
mV
mA
%
Notes
1. External capacitors required to prevent damage to internal circuitry 2. Minimum load required on main output for full power auxiliary oper(see Table 2 for specifications).
ation.
TRIPLE OUTPUT EXTERNAL CAPACITOR
OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY.
TABLE 2: EXTERNAL CAPACITOR REQUIREMENTS
FEEDBACK
Model
HR43-2812
and
HR43-2815
Required
Connection1
Minimum
Capacitor Value2
Positive 5 VDC Output (9) to
Output Common (6 or 7)
220 µF, 10 V
Table 2 Notes
1. See Figure 2 for connection diagram.
2. Capacitors should be high quality, low ESR components —
solid tantalum is recommended.
POSITIVE
INPUT
1, 2
INHIBIT
15
INPUT
COMMON
17, 18
+5 OUTPUT
9
LOGIC
TIMING
CONTROL
SWITCH
REF. &
COMP
DUAL
TRACKING
REGULATOR
OUTPUT
COMMON
6, 7
8
POSITIVE
AUXILIARY
OUTPUT
220µF
EXTERNAL
CAPACITOR
5
NEGATIVE
AUXILIARY
OUTPUT
FIGURE 2:
TRIPLE OUTPUT EXTERNAL CAPACITOR CONNECTIONS
B4-53
HR40 SERIES
4 WATT
DC/DC CONVERTERS
WARNING: EXTERNAL CAPACITORS REQUIRED
OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY.
PIN OUT
Pin
Single Output
Dual Output
1, 21
Positive Input
Positive Input
Triple Output
Positive Input
3
No connection
No connection
No connection
4
Case
Case
Case
5
No connection
No connection
Negative Aux. Output
6
No connection
No Connection
Output Common Main2
7
No connection
No connection
Output Common Aux.2
8
Output Common3
Output Common
Positive Aux. Output
9
Output Common3
No connection
+5 VDC Output
10
No connection
Positive Output
No connection
11
No connection
No connection
No connection
12
Positive Output3
Negative Output
No connection
13
Positive Output3
No connection
No connection
14
No connection
Ext. Capacitor
No connection
15
Inhibit
Inhibit
Inhibit
16
No connection
No connection
No connection
17, 181
Input Common
Input Common
Input Common
Dot on top of cover
indicates pin one.
1 2
BOTTOM VIEW
HR40
18 17
10
See Section B8. case C2, for dimensions
FIGURE 3: PIN OUT
Pin Out Notes
1. Make external connection to both pins on all models.
Pins 1 and 2 positive input
Pins 17 and 18 input common
2. Pins 6 and 7 on triple output models are connected internally.
3. On the HR41-2805:
Make external connections to both output common pins (8 and 9).
Make external connections to both positive output pins (12 and 13).
MODEL NUMBERING KEY
HR4
3 - 28
Base Model
Number of Outputs
(1 = single, 2 = dual, 3 = triple)
Input Voltage
Output Voltage
(Auxiliary output on triple output models)
B4-54
9
24021-009-DTS Rev A
DQ# 2012
All technical information is believed to be accurate, but no responsibility is
assumed for errors or omissions. Interpoint reserves the right to make changes in
products or specifications without notice. HR40 Series is a trademark of Interpoint.
Copyright © 1994 - 1999 Interpoint. All rights reserved.
12
CASES
CASE C
BOTTOM VIEW CASE C1
MSA Series: Screening – Standard, ES, or 883
SMSA Series: Screening – Space Standard, H, or K
Dot on top of case
indicates pin one
Projection Weld
Seam Seal
0.932
(23.67)
1.075 max
(27.31)
FIGURE 8: CASE C
MAXIMUM DIMENSIONS
2
3
4
5
0.932 (23.67)
6
0.732 (18.59)
0.332 (8.43)
0.000
0.000
0.205 ±0.010
(5.21 ±0.25)
0.270 max.
(6.86)
0.000
0.205 ±0.010
(5.21 ±0.25)
0.270 max.
(6.86)
FIGURE 9:
CASE C1
7
0.532 (13.51)
8
0.132
(3.35)
0.000
BOTTOM VIEW CASE C2
MSR Series: Screening – Standard or ES
HR40 Series: No screening options
0.018 ±0.002 dia.
(0.46 ±0.05)
Dot on top of case
indicates pin one
Case dimensions in inches (mm)
Tolerance
±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
1 2
9
18 17
10
0.205 ±0.010
(5.21 ±0.25)
FIGURE 10:
CASE C2
0.000
0.800 (20.32
0.370 max.
(9.40)
0.350 (8.89)
CAUTION
Heat from reflow or wave soldering may
damage the device. Solder pins
individually with heat application not
exceeding 300°C for 10 seconds per
pin.
1
0.025
(0.64)
dia.
1.075 max
(27.31)
Materials
Header Case C1
Cold Rolled Steel/Nickel/Gold
Cases C2 and C3
Kovar/Nickel/Tin
Cover Case C1
Cold Rolled Steel/Nickel
Cases C2 and C3
Kovar/Nickel/Tin
Pins
Case C1
Copper/Nickel/Gold
Cases C2 and C3
Kovar/Nickel/Gold,
matched glass seal
Squared corner and dot on
top of case indicate pin one.
0.132 (3.35)
CASE C
BOTTOM VIEW
See Figures 9 - 11
for pin configurations.
0.100 (2.54)
Pins equally
spaced
Marker bead
on pin 18
0.800 (20.32)
BOTTOM VIEW CASE C3
MSF EMI Filter: Screening – Standard or ES
Seam Seal
0.018 ±0.002 dia.
(0.46 ±0.05)
Dot on top of case
indicates pin one
1 2
3 4
0.800 (20.32
B8-8
0.300
(7.62)
0.100 (2.54)
0.000
0.205 ±0.010
(5.21 ±0.25)
0.370 max.
(9.40)
0.350 (8.89)
0.000
7
0.800 0.600
(20.32) (15.24)
FIGURE 11:
CASE C3
0.205 ±0.010
(5.21 ±0.25)
Note: Although every effort has been
made to render the case drawings at
actual size, variations in the printing
process may cause some distortion.
Please refer to the numerical dimensions for accuracy.
0.365 max.
(9.27)
9 8
6 5
QA SCREENING
HR PRODUCTS
HR PRODUCTS
TEST (HR products)
PRE-CAP INSPECTION
Method 2017
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 and 4: +25°C case
HERMETICITY TESTING
Gross Leak, Dip (1 x 10-3)
FINAL VISUAL INSPECTION
Method 2009
STANDARD
yes
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MILPRF-38534.
Applies to the following products:
HR700 Series
HR300 Series
HR150 Series
HR120 Series
HR40 Series
C2-13