MKW40 SERIES

DC/DC CONVERTER 40W, Highest Power Density

Input Specifications

Parameter

Model

Min.

Typ.

Max.

Unit

12V Input Models

-0.7

---

25

24V Input Models

-0.7

---

50

Input Surge Voltage (1 sec. max.)

48V Input Models

-0.7

---

100

12V Input Models

---

---

9

24V Input Models

---

---

18

Start-Up Threshold Voltage

48V Input Models

---

---

36

12V Input Models

---

8.3

---

24V Input Models

---

16.5

---

Under Voltage Lockout

48V Input Models

---

33

---

VDC

Input Polarity Protection

None

Power Up

---

---

30

ms

Start Up Time

Remote On/Off

Nominal Vin and Constant Resistive Load

---

---

30

ms

Internal Filter Type

All Models

LC Filter (for EN55022,Class A compliance see page 8)

Short Circuit Current

--- (Hiccup Mode 1.5 Hz typ.)

Output Specifications

Parameter

Conditions

Min.

Typ.

Max.

Unit

Output Voltage Setting Accuracy

At 50% Load and Nominal Vin

---

---

±1.0

%Vnom.

Output Voltage Balance

Dual Output, Balanced Loads

---

---

±2.0

%

Line Regulation

Vin=Min. to Max.

---

---

±0.5

%

Single Output

---

---

±0.5

%

Load Regulation

Min. Load to Full Load

Dual Output

---

---

±1.0

%

Load Cross Regulation (Dual Output)

Asymmetrical Load 25%/100% Full Load

---

---

±5.0

%

Minimum Load

No Minimum Load Requirement for Single Output Models, for dual Output Models see Table

Ripple & Noise (20MHz)

3.3V & 5V Output Models

---

100

---

Ripple & Noise (20MHz)

12V, 15V & 24V Models

---

150

---

Ripple & Noise (20MHz)

Dual Output Models

---

150

---

Transient Recovery Time

25% Load Step Change

---

250

---

μsec

Temperature Coefficient

---

---

±0.02

%/

℃

Over Load Protection

Current Limitation at 150% typ. of Iout max., Hiccup

Short Circuit Protection

Hiccup Automatic Recovery

Over Voltage Protection

For Shutdown Voltage see Model Selection Guide

General Specifications

Parameter

Conditions

Min.

Typ.

Max.

Unit

I/O Isolation Voltage (rated)

60 Seconds

1500

---

---

VDC

I/O Isolation Resistance

500 VDC

1000

---

---

MΩ

I/O Isolation Capacitance

100KHz, 1V

---

---

1500

pF

Switching Frequency

---

320

---

KHz

MTBF(calculated)

MIL-HDBK-217F@25

℃, Ground Benign

328,000

---

---

Hours

Safety Approvals

UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme)

Input Fuse

12V Input Models

24V Input Models

48V Input Models

8000mA Slow-Blow Type

4000mA Slow-Blow Type

2000mA Slow-Blow Type

Remote On/Off Control

Parameter

Conditions

Min.

Typ.

Max.

Unit

Converter On

3.5V ~ 12V or Open Circuit

Converter Off

0V ~ 1.2V or Short Circuit

Control Input Current (on)

Vctrl = 5.0V

---

0.5

---

mA

Control Input Current (off)

Vctrl = 0V

---

-0.5

---

mA

Control Common

Referenced to Negative Input

Standby Input Current

Nominal Vin

---

2.5

---

mA

Output Voltage Trim

Parameter

Conditions

Min.

Typ.

Max.

Unit

Trim Up / Down Range

% of nominal output voltage

±10

---

---

%

Total Power In

Total Power International, Inc

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Total Power International, Inc.