Product # SQ60120QPB33

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005266 Rev. G

05/13/15

Page 3

Technical Specification

Input:

36-75 V

Output:

12 V

Current:

33A

Package:

Quarter-brick

Electrical Characteristics

SQ60120QPB33 Electrical Characteristics

Ta = 25 °C, airflow rate = 300 LFM, Vin = 48 Vdc unless otherwise noted; full operating temperature range is -40 °C to +100 °C ambient temperature

with appropriate power derating. Specifications subject to change without notice.

Parameter

Min.

Typ.

Max.

Units Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Non-Operating

-1

100

V

Continuous

Operating

36

48

75

V

Continuous

Operating Transient Protection

100

V

100 ms transient, square wave

Isolation Voltage

Input to Output

2250

V

Operating Temperature

-40

100

°C

Storage Temperature

-45

125

°C

Voltage at ON/OFF input pin

-2

18

V

INPUT CHARACTERISTICS

Operating Input Voltage Range

36

48

75

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

31.0

34.5

V

Turn-Off Voltage Threshold

27.6

32

V

Lockout Voltage Hysteresis

2

4

V

Input Over-Voltage Shutdown

Turn-On Voltage Threshold

95

V

Turn-Off Voltage Threshold

105

V

Maximum Input Current

12.9

A

No-Load Input Current

130

mA

Disabled Input Current

8.5

mA

Input Reflected-Ripple Current

10

20

mA

RMS through 10 µH inductor

Input Terminal-Ripple Current

400.0

800.0

mA

RMS, full load

Recommended Input Fuse (see Note 1)

15

A

Fast blow external fuse recommended

Recommended External Input Capacitance

47

µF

Typical ESR 0.1-0.2 Ω

Input Filter Component Values (L\C)

0.47\6.6

µH\µF Internal values

OUTPUT CHARACTERISTICS

Output Voltage Set Point

12.46

12.5

12.54

V

Vin = 65 V, Io = 0 A, Ta = 25 °C

Output Voltage Regulation

Over Line

+0.18\-1.25

V

Over Load

+0\-0.80

V

Over Temperature

±300

mV

Total Output Voltage Range

10.250

12.830

V

Over sample, line, load, temperature & life

Output Voltage Ripple and Noise

20 MHz bandwidth; see Note 2

Peak-to-Peak

200

325

mV

Full load

RMS

50

115

mV

Full load

Operating Output Current Range

0

33

A

Subject to thermal derating

Output DC Current-Limit Inception

40

A

Output voltage 10% Low

Output DC Current-Limit Shutdown Voltage

10.5

V

Back-Drive Current Limit while Disabled

50

mA

Negative current drawn from output

Maximum Output Capacitance

3,000

µF

Vout nominal at full load (resistive load)

DYNAMIC CHARACTERISTICS

Output Voltage during Load Current Transient

Step Change in Output Current (0.1 A/µs)

1600

2,500

mV

50% to 75% to 50% Iout max

Settling Time

250

350

µs

To within 1% Vout nom

Turn-On Transient

Turn-On Time

15

30

ms

Full load, Vout=90% nom.

Start-Up Inhibit Time

200

ms

-40 °C to +125 °C; Figure E

Output Voltage Overshoot

0

%

3 mF load capacitance