XPiQ inc KHQ03048S1V5AL, KHQ03048S1V5AH, KHQ03048S1V2BL, KHQ03048S1V2AH, KHQ03048S3V3BH Datasheet

Low Voltage Outputs

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High Power Density

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Efficiency 91% for 3.3V/30 A

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ETS 300-321-2 Isolation

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International Safety Approvals

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Fixed Switching Frequency

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Low Profile

Input

Input Voltage Range • 36-75 VDC
Input Current • See Table
Input Reflected • 20 mA pk-pk

Ripple Current
Remote ON/OFF • Shorted to -Vin (Logic Low) = ON

Open (Logic high) = OFF
Negative logic is standard,
Positive logic is available (See Note 3)

Input Reverse Voltage • External components required
Protection (See Note 4)

Input Transient • 100 V for 100 ms
Undervoltage • Above 32 to 34 VDC = ON

Lockout Below 30 to 32.2 VDC = OFF

Output

Output Voltage • 1.2 VDC to 3.3 VDC
Output Voltage • ±10%

Adjustment
Minimum Load • No minimum load required
Line Regulation • ±0.5% (36-75 VDC; full load)
Load Regulation • ±0.5%
Output Voltage • ±50 mV

Accuracy
Ripple & Noise • 100 mV pk-pk, 20 MHz bandwidth
Transient Response • 3% max deviation, 100 µs recovery

time for a 25% step load change

Temperature • 0.01%/°C
Coefficent

Remote Sense • Compensates for drop of up to 10%

of output

Overvoltage • 120%-130%, recycle input to reset
Protection

Overcurrent • 110-135% auto restart
Protection

Short Circuit • Protected from short circuit
Protection conditions, hiccup mode

Overtemperature • Shutdown at 110 °C (measured
Protection on board), auto restart

General

Efficiency • See Table
Isolation • 1500 VDC Input to Output
Size • 2.280” x 1.450” x 0.417”

(0.5” with baseplate)
Switching Frequency • 330-350 kHz
Weight • 35 g for open frame version

65 g for baseplate version

MTBF • 2,000,000 hours calculated to Bellcore

Environmental

Operating • -40 ° C to +85 °C ambient with
Temperature derating, full power to +50 °C with

200 LFM
Storage Temperature • -55 °C to +125 °C
Cooling • Convection cooled or forced air

(See Derating Curve)
Humidity • 5-95% RH non-condensing

EMC & Safety

Safety Approvals • UL 60950, IEC 60950,

CSA 60950 per cUL,

CE Marked for LVD
EMI/EMC • FCC level B Part 15 with

external filtering (See Note)

30 Amps

KHQ030 Series

Quarter Brick DC/DC Converters

Specification

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Intelligent Design Quality Product

XPiQ inc.

PH: 508 429.9883

FAX: [phone]

Email: [e-mail]

Holliston, MA 01746 USA

www.XPiQ.com

KHQ030.qxd 6/6/03 4:31 pm Page 1

(3.3 V) Transient Response

Load Step 50% to 75% of 1 out

(3.3 V) Output Ripple & Noise at full load

1. Standard product is open frame with negative logic.

2. Baseplate versions are built to order.

3. Please add one of the following suffix code to the part number when ordering:
AL = Open Frame/Negative logic, AH = Open Frame/Positive logic, BL = Baseplate/Negative logic, BH = Baseplate/Positive logic.

4. For input reverse voltage protection, use a parallel diode across the input terminals preceded by a 5 A fuse.

5. For details of external filtering, contact Technical Sales.

Notes

Mechanical Details

All Dimensions in Inches (mm)
Tolerance .XX = ±0.02 (0.50)

.XXX = ±0.010 (0.254)

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Output Output Output Current Efficiency Input Model

Power Voltage Maximum Current Number

(3)

36 W 1.2 V 30 A 82% 0.92 A KHQ03048S1V2
45 W 1.5 V 30 A 85% 1.11 A KHQ03048S1V5
54 W 1.8 V 30 A 87% 1.30 A KHQ03048S1V8
75 W 2.5 V 30 A 89% 1.80 A KHQ03048S2V5

100 W 3.3 V 30 A 91% 2.29 A KHQ03048S3V3

OUTPUT VOLTAGE & CURRENT RATINGS KHQ030

Derating Curves

Pin Connections

Pin Function Pin Function

1 +Input 5 -Sense
2 On/Off 6 Trim
3 -Input 7 +Sense
4 -Output 8 +Output

PH: 508 429.9883

FAX: [phone]

Email: [e-mail]

Holliston, MA 01746 USA

www.XPiQ.com

KHQ030.qxd 6/6/03 4:31 pm Page 2