V21

2

SPECIFICATIONS

All Specifications Typical At Nominal Line, Full Load, and 25

Unless Otherwise Noted

℃

INPUT SPECIFICATIONS:

GENRAL SPECIFICATIONS:

Input Voltage Range ....……………..........….......... 24V ......................... 9-36V

Efficiency ..............................................................…..……... See Table

48V ...................... 18-75V

Isolation Voltage ..........….. Input/Output ....……..…. 1500VDC min.

Input Surge Voltage (100ms max.) ……….…....… 24V …............ 50Vdc max.

Isolation Resistance ...........................…...................……. 10

48V ............. 100Vdc max.

Isolation Capacitance …………………..…………………..… 1000pF typ.

Under Voltage Lockout ………..….. 24Vin power up ….…...…..……. 8.8V typ.

Switching Frequency ................... 24Vin ................…….... 300KHz typ.

24Vin power down ……..……. 8.0V typ.

48Vin ..…...........…….... 250KHz typ.

48Vin power up ……...…….….. 17V typ.

Operating Ambient Temperature …………………...…... -40℃ to +85℃

48Vin power down ……..……... 16V typ.

De-rating, Above 60℃ ………………… Linearly to Zero power at 100℃

Positive Logic Remote On/Off (note3&4)

Case Temperature (note5) ………………………………….. 100℃ max.

Input Filter ………………………………………………..….……... Pi Type

Cooling ………………………………………………… Natural Convection

OUTPUT SPECIFICATIONS:

Storage Temperature ……………...….......………....... -55℃ to +125℃

Voltage Accuracy: .............................................……….......... ±1.5% max.

Humidity ................................................. 95% RH max. Non condensing

Transient Response: 75% - 100% Step Load Change

MTBF ………. MIL-STD-217F, GB, 25

, Full Load

℃

…… 650Khrs typ.

Error Band …………………...…………..……….. ±5% Vout nominal

Thermal Shutdown Case Temp. .………….....................……. 110℃ typ.

Recovery Time ………………………………………….…….. < 300µs

Dimensions ....................... 2.00×1.60x0.40 inches (50.8x40.6×10.2 mm)

External Adjustment Range, %Vo ……………………….…………...... ±10%

Case Material …….… Black Coated Copper with Non-Conductive Base

Ripple & Noise, 20MHz BW ( Measured with 0.1uF MLCC )

Weight …………………………………………………………………… 50g

3.3V & 5V ………..…..……..…. 20mV RMS max. 75mV pk-pk max.

NOTE :

12V & 15V ……………...….… 20mV RMS max. 100mV pk-pk max.

1. Measured from high line to low line.

Temperature Coefficient ....................……….....….......…..... ±0.02%/°C

2. Measured from full load to 10% load.

Line Regulation (note1) .….….….....................................…. ±0.5% max.

3. Logic compatibility …. CMOS or open collector TTL, ref. to -Vin

Load Regulation (note2) …………………..…................…...... ±0.5% max.

Module on ………….……… >3.5VDC to 75VDC or open circuit

Output Over voltage Protection ( Zener or TVS Clamp)

Module off ……..………………………………….……. <1.2VDC

3.3V ……………….....……………..……………………...………….. 3.9V

4. Suffix "N" to the model number with negative logic remote on/off

5V …………………...……………………..……………..………….. 6.2V

Module on …………..………………………..………... <1.2VDC

12V ……………….....………………..…………….………………….. 15V

Module off …………..…….. >3.5VDC to 75VDC or open circuit

15V ……………….....………………………………..…………..……. 18V

5. Maximum case temperature under any operating condition should

Output Current Limit, % Nominal Output .....................………….. 110%-150%

not be exceeded 100℃.

Output Short Circuit Protection ......……..……..…. Continuous (Hiccup Mode)

Start up time …………………………………….………………..…... 8ms typ.

Case SC Dimensions:

Tolerances

Inches: X.XX= ±0.04 , X.XXX= ±0.010

B O T T O M V I E W

4

3

1

M illim eters: X.X= ±1.0 , X.XX=±0.25

8

7

6

5

All D im ensions In Inches(m m )

4

+V Input

N o Pin

7

+VO utput

8

5

6

Trim

-V Output

Function

On/Off C ontrol

PIN C O NN EC TIO NS

Pin

1

3

-V Input

N O TE: Pin Size is 0.04±0.004 Inch (1.0±0.1m m )DIA

EXTERNAL OUTPUT TRIM

10K Ohms

+Vout

TRIM

-Vout

+Vout

TRIM

-Vout

TRIMPOT

TRIM UP

TRIM DOWN

Typical Derating curve for Natural Convect ion

100

-40

60

0%

20%

40%

60%

80%

100%

120%

-40

-20

0

20

40

60

80

100

Ambient Temperature(

Natural

Convection