JUN 06, 2006 revised to JUL 25, 2006 Page 1 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Applications
• Distributed power architectures
• Telecommunications equipment
• LAN/WAN
• Data processing
Features
• RoHS lead solder exemption compliant
• Standard ½-brick footprint and pinout
• 100V/100ms input voltage surge
• Low profile (12.7 mm)
• Input-to-output isolation: 1500 VDC
• Basic insulation
• High efficiency - to 90% at full load
• Start-up into high capacitive load
• Start-up into pre-biased loads
• Back-drive protection
• Remote sense
• Low conducted and radiated EMI
• Output overcurrent & overvoltage protection
• Overtemperature protection
• Remote On/Off (primary referenced), positive
or negative logic
• Output voltage trim adjust, positive or
negative
• UL 1950 recognized, CSA 22.2 No. 950-95
certification, TUV IEC95
Description
The HHS60 Series of high-density, single-output dc-dc converters is ideal for telecom and datacom systems that
require low voltage at high current in an industry-standard, half-brick footprint. Highly efficient topology and
thermally-optimized construction allow the units to provide high output current in the system over a wide operating
temperature range while still maintaining a safe guardband for component electrical and thermal ratings. The
addition of an external heat sink increases the capacity of the unit. The HHS60 employs 100% surface-mount
components for consistency and reliability in our production process, and is available in four standard output
voltages from 1.5 to 3.3 VDC.
Model Selection
Model Input
Voltage
VDC
Input
Current,
Max1 ADC
Output
Voltage
VDC
Output Rated
Current I rated
ADC
Output
Ripple/Noise,
mV p-p
Typical
Efficiency @
I rated %
HHS60ZE 36-75 6.5 3.3 60 150 90
HHS60ZD 36-75 4.9 2.5 60 150 89
HHS60ZB 36-75 3.6 1.8 60 150 86
HHS60ZA 36-75 3.1 1.5 60 150 85
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment
should be followed.
Model numbers highlighted in yellow or shaded are not recommended for new designs.
NOTES:
1 specified @ VIN min.
JUN 06, 2006 revised to JUL 25, 2006 Page 2 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely effect long-
term reliability, and cause permanent damage to the converter.
Parameter Conditions/Description Min Max Units
Continuous 75 VDC Input voltage
Transient, 100 ms 100 VDC
Operating Temperature Baseplate -40
110 1 °C
Storage Temperature -55 125 °C
ON/OFF Control Voltage Referenced to -Vin 50 VDC
1 Max. TBP = 115OC for model: HHS60ZE.
Environmental, Mechanical & Reliability Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
Operating Temperature Baseplate -40
110 1 °C
Operating Humidity Relative humidity, non-condensing 95 %
Storage Humidity Relative humidity, non-condensing 95 %
Shock ½ Sine, 6ms, 3 axes 50 g
Sinusoidal Vibration GR-63-CORE, Section 5.4.2 1
Weight 3.3/92 Oz/g
Water Washing Standard process Yes
MTBF (calculated)
per Bellcore TR-NWT-000332
Method I, Case 2,
Quality level 2,
“Parts Count” method,
Conditions: GB, TA=40 OC,
(50% stress).
2.1 MHrs
Dimensions (overall) 2.28(57.9) x 2.4(61) x
0.5(12.7)
in (mm)
1 HHS60ZE, TBP = 115OC max. for extended power derating capability, Refer to Fig. 5.
Isolation Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
Insulation Safety Rating Basic
Input/Output 1500 VDC
Input to Baseplate 1500 VDC
Isolation Voltage
Output to Baseplate 1500 VDC
Isolation Resistance 10 MΩ
Isolation Capacitance Input to Output 500 pF
Safety Regulatory Compliance
Safety Agency Standard Approved To: Marking
Underwriters Laboratories UL60950/CSA60950-00 cULus
TUV Product Service TUV EN60950:2000 TUV PS Baurt mark
CB report IEC60950:1999 N/A.
JUN 06, 2006 revised to JUL 25, 2006 Page 3 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Input Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
Input Voltage Continuous 36 48 75 VDC
Turn-On Input Voltage Ramping Up 1 33 34 35 VDC
Turn-Off Input Voltage Ramping Down 1 31 32 33 VDC
Input Reflected Ripple Current Full Load, 12 µH source inductance
BW=20 MHz 2
2.6
50 mA p-p
Inrush Transient Vin = Vin.max 0.1 1 A2s
1 Refer to Fig. 9 for waveform.
2 Refer to Fig. 18 for test circuit. / measurement method.
Output Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
Output Voltage Set-point Accuracy: Vin = 48VDC, Full Load -1.2 1.2 %Vout
Output Current Irated 3* 60 ADC
Line Regulation: (Vin = 36 V to 75 V) 0.2 %Vout
Load Regulation: Vin = Vnom, Io,min to Io,max 0.2 %Vout
Output Temperature Regulation (TBaseplate) = -40 OC to +100 OC) 0.03 %/ OC
Ripple and Noise, DC to 20MHz 1,2 Over line and load
Tamb= 0 OC to 85 OC
75
15
150
40
mV p-p
mVRMS
75-100-75% load step change,
to 1% error band
di/dt = 0.1A/μs
13
125
18
250
%Vout
μs
Dynamic Regulation
Peak Deviation
Settling Time
Peak Deviation
Settling Time
di/dt = 1A/μs 15
125
20
250
%Vout
μs
Turn-On Time
(turn-on via application of Vin)
Time from Vin = UVLO to
regulation band
15 20 ms
Turn-On Time
(turn-on via ON/OFF signal)
Time from ON/OFF signal to
regulation band
12 15 ms
Rise Time from 10 to 90% of Vout.nom 10 ms
Turn-on Overshoot Over all input voltage, load, and
temperature conditions
1 5 %Vout
Admissible Load Capacitance Irated, Nom Vin 15,000 μF
Backdrive Protection No damage to converter Yes
Switching Frequency 400 kHz
1 At Iout<Iout.min, the output may contain low frequency component that exceeds ripple specifications.
2 See Figure 12 for test setup
JUN 06, 2006 revised to JUL 25, 2006 Page 4 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Protections Specifications
All specifications apply over specified input voltage, output load, and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
Overcurrent Protection 1
Type Non-latching – Hiccup mode, auto-recovery
Threshold 64 78 Adc
Short Circuit 30 ARMS
Overvoltage Protection 2
Type Clamping, auto-recovery
Threshold Vin = Vin.nom, Iout=Irated 120 140 Vdc
Overtemperature Prot ection
Type Non-latching, auto-recovery
Threshold Baseplate temperature 116 120 124 °C
Recovery 90 °C
1 See Fig. 13 2 See Fig. 14
Feature Specifications
All specifications apply over specified input voltage, output load and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
ON/OFF
Negative Logic (-N suffix)
Converter ON
Source Current
Converter OFF
Open Circuit Voltage
ON/OFF signal is low or the pin is
connected to -Vin – converter is ON
Von/off in reference to -Vin
ON/OFF pin is connected to -Vin
Von/off in reference to -Vin
ON/OFF pin is floating
-0.5
3.5
0.5
1.8
1
20
5
VDC
mADC
VDC
VDC
Positive Logic (no suffix)
Converter ON
Open Circuit Voltage
Converter OFF
Source Current
On/Off signal is low or the pin is floating
–converter is OFF
Von/off in reference to -Vin
ON/OFF pin is floating
Von/off in reference to -Vin
ON/OFF pin is connected to -Vin
3.5
-0.5
0.5
10
5
1.8
1
VDC
VDC
VDC
mADC
Remote Sense 1
Remote Sense Headroom 10 %Vout
Output Voltage Trim 1
Trim Up Vin = Vin.nom, Iout=Irated 10 Vdc
Trim Down Vin = Vin.nom, Iout=Irated -10 Vdc
1 Vout can be increased up to 10% via the sense leads or up to 10% via the trim function; however total output voltage trim from all sources
should not exceed 10% of Vout.
JUN 06, 2006 revised to JUL 25, 2006 Page 5 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Efficiency Characteristics
65
70
75
80
85
90
95
0 102030405060
Output current, A
Efficiency,%
36V 48V 75V
Figure 1. HHS60ZE, (3.3V) Effic i ency Curves
65
70
75
80
85
90
95
0 102030405060
Output curren t, A
Efficiency, %
36V 48V 75V
Figure 2. HHS60ZD (2.5V) Efficiency Curves
65
70
75
80
85
90
95
0 102030405060
Outp u t cu rren t, A
Efficiency,%
36V 48V 75V
Figure 3. HHS60ZB (1.8V) Efficiency Curves
65
70
75
80
85
90
95
0 102030405060
Output c u rrent, A
Efficiency,%
36V 48V 75V
Figure 4. HHS60ZA (1.5V) Efficiency Curves
JUN 06, 2006 revised to JUL 25, 2006 Page 6 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Power Derating Characte ristics
THERMAL DERA TING CURVE
Vin = 48V, Orientation : Vin- to Vin +
10
15
20
25
30
35
40
45
50
55
60
25 40 55 70 85
Ambient Temperature (Deg C)
Load Current (A)
NC (25 - 35 LFM) 100 LFM
200 LFM 300 LFM
400 LFM 200LFM (Tbp @ 115C)
HHS60ZE
Data Rev: 01
Figure 5. HHS60ZE, (3.3V) Derating Curves
The customer may elect to operate the HHS60ZE at
a TBP of 115 OC thereby extending the operating
current ratings as defined by the “200 LFM @
TBP=115 OC” derating curve above. This condition
can be instrumental towards compliance of
GR-63-CORE, sect.: 4.1.2 defining “short term”
temperature conditions.
However the HHS60 series power derating curves of
all models are otherwise characterized at a more
conservative baseplate temperature (TBP) of 110 OC.
This recommended maximum operating temperature
offers improved reliability.
THERMAL DERATING CURVE
Vin = 54V, Orientation : Vin- to Vin +
0
10
20
30
40
50
60
70
25 40 55 70 85
Ambient Temperature (Deg C)
Load Current (A)
NC (25 - 35 LFM) 100 LFM 200 LFM 300 LFM 400 LFM
HHS60ZD
Data Rev: 01
Figure 6. HHS60ZD (2.5V) Derating Curves
THERMAL DERATIN G CURVE
Vin = 54V, Orientation : Vin- to Vin +
0
10
20
30
40
50
60
25 40 55 70 85
Ambient Temperature (Deg C)
Load Current (A)
NC (25 - 35 LFM) 100 LFM 200 LFM 300 LFM 400 LFM
HHS60ZB
Data Rev: 01
Figure 7. HHS60Z B (1.8V) Derating Curves
THERMAL DERATING CURVE
Vin = 54V, Orientation : Vin- to Vin +
0
10
20
30
40
50
60
70
25 40 55 70 85
Ambient Temperature (Deg C)
Load Current (A)
NC (25 - 35 LFM) 100 LFM 200 LFM 300 LFM 400 LFM
HHS60ZA
Data Rev: 01
Figure 8. HHS60ZA (1.5V) Derating Curves
JUN 06, 2006 revised to JUL 25, 2006 Page 7 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
UVLO Operation
Input Current vs. Voltage
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
0 1020304050607080
Input Voltage (Vdc)
Input Current (A)
Turn On Voltage
Threshold
Turn Off Voltage
Threshold
Figure 9. HHS60 Input UVLO Characteristics
Turn-on Characteristics
Figure 10. Output Voltage turn-on HHS60ZE
Conditions: Vin=48V, Load: full, , Co=none
(Note: monotonic rise characteristic)
Output Ripple and Noise
(Reading: 36mVP-P)
Figure 11. HHS60ZE Output Ripple Characteristics
Vin=48V and Iout=3A
To improve accuracy and repeatability of ripple and
noise measurements, Power-One utilizes the test
setup shown in Figure 12.
DUT
LOAD1
0.1uf
ceramic SCOPE
COPPER STRIPS (2 to 3 inches)
+Vo1
-Vo1
10uF
Tantalum
Figure 12. Output Ripple and Noise Measurement Test Setup
A BNC connector is used for the measurements to
eliminate noise pickup associated with long ground
leads of conventional scope probes. The connector,
a 0.1 μF ceramic capacitor and a 10 μF tantalum
capacitor, and the load are located 2-3” away from
the converter.
JUN 06, 2006 revised to JUL 25, 2006 Page 8 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Short Circuit Operation
Figure 13. Output Current with Shorted Output Pins,
Vin = 48Vdc, Scale is 20Amp/Div.
Once the output current is brought back into its
specified range, the converter automatically exits the
hiccup mode and continues normal operation.
Overvoltage Protection
The output overvoltage protection consists of a
separate control loop, independent of the primary
control loop. This control loop has a higher voltage
set point than the primary loop. In a fault condition
the converter limits its output voltage and latches off.
Figure 14 shows operation of the converter under an
overvoltage condition.
Figure 14. Output Voltage of an HHS60ZE Under a Forced
Overvoltage Condition, Vin=75V, Min Load, Co =none
Typical Application
Figure 15 shows the recommended connections for
the HHS60 Series converter.
+Vo
+Sense
Trim
-Sense
-Vo-Vi
+Vi
On/Off
Fuse
C1 C2 C3
HHS60ZX
Figure 15. Typical Application of the HHS60 Series
The HHS60 Series converters do not require any
external components for proper operation. However,
if the distribution of the input voltage to the converter
contains significant inductance, the capacitor C1
may be required to enhance performance of the
converter. A minimum of a 100 μF electrolytic
capacitor with the ESR < 0.7Ω is recommended for
the HHS60 series.
If the magnitude of the inrush current needs to be
limited, for suggestions see the “Inrush Current
Control Application Note” on the Power-One website
at www.power-one.com.
For output decoupling we recommend using one
10μF tantalum and one 1μF ceramic capacitors
connected directly across the output pins of the
converter. Note, that the capacitors do not substitute
the filtering required by the load.
Shutdown Feature Description
The ON/OFF (# 3) pin of the HHS60 Series
converters is referenced to the –Vin (# 1) pin (see
Figure 5). Both negative and positive logic models
are available.
With negative logic (which is denoted by the suffix “–
N” in the part number), when the ON/OFF pin is
pulled low, the unit is turned on.
With the positive logic, when the ON/OFF pin is
pulled low, the output is turned off and the unit goes
into a very low input power mode.
JUN 06, 2006 revised to JUL 25, 2006 Page 9 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
An open collector switch is recommended to control
the voltage between the ON/OFF pin and the -Vin
pin of the converter. The ON/OFF pin is pulled up
internally, so no external voltage source is required.
The user should avoid connecting a resistor between
the ON/OFF pin and the +Vin (# 4) pin.
When the ON/OFF pin is used to achieve remote
control, the user must take care to insure that the pin
reference for the control is actually the -Vin pin. The
control signal must not be referenced ahead of EMI
filtering, or remotely from the unit. Optically coupling
the information and locating the optical coupler
directly at the module will solve any of these
problems.
Note:
If the ON/OFF pin is not used, it can be left floating (positive logic),
or connected to the -Vin pin (negative logic).
Remote Sense
The HHS60 Series converters have the capability to
remotely sense both lines of the output. This feature
moves the effective output voltage regulation point
from the output of the unit to the point of connection
of the remote sense pins. This feature automatically
adjusts the real output voltage of the converter in
order to compensate for voltage drops in distribution
and maintain a regulated voltage at the point of load.
This is shown in Figures 16 & 17.
If the remote sense feature is not to be used, the
sense pins should be connected locally. The
+Sense (#8) pin should be connected to the +Vout
(#9) pin directly at the output of the converter and the
–Sense (#6) pin should be connected to the -Vout
(#5) pin directly at the output of the converter.
If sense pins are not connected to load, or the
respective output pins, the converter will not be
damaged, but may not meet the output voltage
regulation specifications.
Output Voltage Trim
The trim feature allows the user to adjust the output
voltage from the nominal value. This can be used to
compensate for distribution drops, perform margining
in production, or accommodate other requirements
when output voltage needs to be adjusted from the
nominal value. There are two trim options available
in the HHS60 Series.
Negative Trim (No P/N s uffix)
All HHS60 negative-trim models trim up with a
resistor connected from the TRIM (#7) pin to the
(-) Sense (#6) pin and trim down with a resistor from
the TRIM pin to the (+) Sense (#8) pin as shown in
Figure 16.
Figure 16. HHS60 Series Negative Trim Schematic
The following equation determines the required
external resistor value to obtain an output voltage
change of Δ%.
Vo*(100-Δ%)-122.5
Rtrim-dn = R1*(--------------------------- ) - R2 kΩ
Vo*Δ%
122.5*R1
Rtrim-up = (------------- - R2) kΩ
Vo*Δ%
Where R1 and R2 are constants from the table
below
Model R1 (kΩ) R2 (kΩ)
HHS60ZA 0. 223 0.15
HHS60ZB 0.474 1
HHS60ZD 1.039 3.92
HHS60ZE 4.220 5.11
JUN 06, 2006 revised to JUL 25, 2006 Page 10 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Optional Positive-Trim (–T, P/N suffix)
The trim feature allows the user to adjust the output
voltage from its nominal value.
The HHS60 positive-trim (-T) models trim up with a
resistor from the Trim (#7) pin to the +Sense (#8) pin
and trims down with a resistor from the Trim pin to
the –Sense (#6) pin as shown in the Figure 17.
Figure 17. HHS60 Series Positive Trim Schematic
The equations below determine the trim resistor
value required to achieve a ΔV change in the output
voltage.
100
Rtrim-dn = (-------- - 2) kΩ
Δ%
Vo*(100+Δ%) (100+2*Δ%)
Rtrim-up = (-------------------- - ------------------) kΩ
1.225*Δ% Δ%
where ΔV% is the output voltage change expressed
in percent of the nominal output voltage, Vout.
Notes:
1. When the output voltage is trimmed up, the output power
from the converter must not exceed its maximum rating. The
power is determined by measuring the output voltage on the
output pins, and multiplying it by the output current.
2. In order to avoid creating apparent load regulation
degradation, it is important that the trim resistors are
connected directly to the remote sense pins, and not to the
load or to traces going to the load.
3. The output voltage increase can be accomplished by either
the trim or by the remote sense or by the combination of
both. In any case the absolute maximum output voltage
increase shall not exceed the limits defined within the
“Features” section above.
4. Either Rup or Rdown should be used to adjust the output
voltage according to the equations above. If both Rup and
Rdown are used simultaneously, they will form a resistive
divider and the equations above will not apply
Safety Consideratio ns
The HHS60 Series converters feature 1500 VDC
isolation from input to output. The input to output
resistance is greater than 10MΩ. These converters
are provided with Basic insulation between input and
output circuits according to all IEC60950 based
standards. Nevertheless, if the system using the
converter needs to receive safety agency approval,
certain rules must be followed in the design of the
system. In particular, all of the creepage and
clearance requirements of the end-use safety
requirements must be observed. These documents
include UL60950 - CSA60950-00 and EN60950,
although other or additional requirements may be
needed for specific applications.
The HHS60 Series converters have no internal fuse.
An external fuse must be provided to protect the
system from catastrophic failure, as illustrated in
figure 15. Refer to the “Input Fuse Selection for
DC/DC converters” application note on www.power-
one.com for proper selection of the input fuse. Both
input traces and the chassis ground trace (if
applicable) must be capable of conducting a current
of 1.5 times the value of the fuse without opening.
The fuse must not be placed in the grounded input
line, if any.
In order for the output of the HHS60 Series converter
to be considered as SELV (Safety Extra Low
Voltage) or TNV-1, according to all IEC60950 based
standards, one of the following requirements must be
met in the system design:
• If the voltage source feeding the module is SELV
or TNV-2, the output of the converter may be
grounded or ungrounded.
• If the voltage source feeding the module is ELV,
the output of the converter may be considered
SELV only if the output is grounded per the
requirements of the standard.
• If the voltage source feeding the module is a
Hazardous Voltage Secondary Circuit, the
voltage source feeding the module must be
provided with at least Basic insulation between
the source to the converter and any hazardous
JUN 06, 2006 revised to JUL 25, 2006 Page 11 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
voltages. The entire system, including the
HHS60 converter, must pass a dielectric
withstand test for Reinforced insulation. Design
of this type of systems requires expert
engineering and under-standing of the overall
safety requirements and should be performed by
qualified personnel.
Thermal Considerations
The HHS60 Series converters are designed for
natural or forced convection cooling. The maximum
allowable output current of the converters is
determined by meeting the derating criteria for all
components used in the converters. For example,
the maximum semiconductor junction temperature is
not allowed to exceed 120 °C to ensure reliable long-
term operation of the converters.
The graphs in Figures 5 thru 8 show the maximum
output current of the HHS60 Series converters at
different ambient temperatures under both natural
and forced convection. (longitudinal airflow direction,
from pin 1 to pin 4).
Test Setup
Figure 18. Input Reflected Ripple Current Test Setup
Note: Measure input reflected-ripple current with a simulated
inductance (Ltest) of 12 µH. Capacitors offset possible battery
impedance. Measure current as shown above
BATTER
Y
Cs 220 uF
ESR < 0.1 OHM
@ 20 ºC, 100
kHz
Ltest
12 uH
22 uF
ESR < 0.7 OHM
@ 20 ºC, 100 kHz
Vi(+)
Vi(-)
TO OSCILLOSCOPE
JUN 06, 2006 revised to JUL 25, 2006 Page 12 of 12 www.power-one.com
HHS60 DC-DC Series Data Sheet
48VD
C
In
p
ut, 60 Am
p
Half-Brick Converter
Mechanical Drawing
Ordering Information
Options P/N Suffixes
Positive - no suffix required Remote ON/OFF
Negative - Add “N” suffix
Positive (Industry std) - Add “T” suffix Trim
Negative - no suffix required
0.18”- Standard - no suffix required
0.11”- Add “8” suffix 1
Pin Length
0.15”- Add “9” suffix 1
Special Models Pin2 (Case Pin) removed add S4 suffix
Notes 1 Consult factory for available options.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
Tolerances: .xx + .020 (.5)
.xxx + .010 (.25)
Pin Diameter + 0.002 (.05)
PIN FUNCTION
1 -Vin
2 Case Pin
3 On/Off
4 +Vin
5 -Vo
6 -Sense
7 Trim
8 +Sense
9 +Vo
