MKWI40 SERIES

DC/DC CONVERTER 40W, Highest Power Density

E-mail:sales@minmax.com.tw

Tel:886-6-2923150

2012/04/20 REV:4

Page 2 of 8

®

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(pending)

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

Input Fuse

24V Input Models

48V Input Models

8000mA Slow-Blow Type

4000mA Slow-Blow Type

Remote On/Off Control

Parameter

Conditions

Min.

Typ.

Max.

Unit

Converter On

4.7V ~ 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

---

---

%

Environmental Specifications

Max.

Parameter

Model

Min.

without Heatsink with Heatsink

Unit

MKWI40-XXS033

66

73

MKWI40-24S05, MKWI40-48S05

MKWI40-48S12, MKWI40-48S15

51

61

MKWI40-24S12, MKWI40-24S15

45

57

MKWI40-24D12, MKWI40-24D15

Operating Ambient Temperature Range

(Natural Convection, see Derating)

MKWI40-48D12, MKWI40-48D15

-40

40

52

℃

Natural Convection without Heatsink

12.0

---

℃/W

Natural Convection with Heatsink

10.0

---

℃/W

100LFM Convection without Heatsink

9.0

---

℃/W

100LFM Convection with Heatsink

5.4

---

℃/W

200LFM Convection without Heatsink

8.0

---

℃/W

200LFM Convection with Heatsink

4.5

---

℃/W

400LFM Convection without Heatsink

6.0

---

℃/W

Thermal Impedance

400LFM Convection with Heatsink

3.0

---

℃/W

Case Temperature

---

+105

℃

Thermal Protection

Shutdown Temperature

110

℃ typ.

Storage Temperature Range

-50

+125

℃

Humidity (non condensing)

---

95

% rel. H

RFI

Six-Sided Shielded, Metal Case

Lead Temperature (1.5mm from case for 10Sec.)

---

260

℃