Product # PQ60015EML15

Phone 1-888-567-9596

Doc.# 005-2EM651E Rev. B

9/3/03

Page 3

Technical Specification

48Vin 1.5Vout 15A

Eighth

Eighth

Brick

Brick

Parameter

Min.

Typ.

Max.

Units

Notes & Conditions

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Non-Operating

100

V

continuous

Operating

80

V

continuous

Operating Transient Protection

100

V

100ms transient

Isolation Voltage (input to output)

2000

V

Basic level, Pollution Degree 2

Operating Temperature

-40

100

°C

Storage Temperature

-55

125

°C

Voltage at ON/OFF input pin

-2

18

V

INPUT CHARACTERISTICS

Operating Input Voltage Range

35

48

75

V

Input Under-Voltage Lockout

Turn-On Voltage Threshold

31.5

33.3

34.4

V

Turn-Off Voltage Threshold

29.5

31.0

32.4

V

Lockout Hysteresis Voltage

2.2

2.3

2.4

V

Maximum Input Current

0.9

A

100% Load, 35 Vin

No-Load Input Current

25

mA

Disabled Input Current

2

5

mA

Inrush Current Transient Rating

0.01

Response to Input Transient

50

mV

1000V/ms input transient

Input Reflected-Ripple Current

3

mA

RMS thru 10µH inductor; Figs. 13 & 15

Recommended Input Fuse

10

A

fast blow external fuse recommended

Input Filter Component Values (C\L)

1.0\4.7

µF\µH

internal values, see Figure E

Recommended External Input Capacitance

33

47

µF

see Figure 13

OUTPUT CHARACTERISTICS

Output Voltage Set Point

1.485

1.50

1.515

V

Output Voltage Regulation

Over Line

+0.05 \ 2

+0.1 \ 5

%\mV

Over Load

+0.1 \ 2

+0.2 \ 5

%\mV

Over Temperature

+6

+20

mV

Total Output Voltage Range

1.45

1.55

V

over sample, line, load, temperature & life

Output Voltage Ripple and Noise

20MHz bandwidth; Fig. 13 & 16

Peak-to-Peak

70

130

mV

Full Load, see Figures 13 & 16

RMS

15

25

mV

Full Load, see Figures 13 & 16

Operating Output Current Range

0

15

A

Output DC Current-Limit Inception

17.5

A

Output Voltage 10% Low; Fig. 17

Output DC Current-Limit Shutdown Voltage

0.9

V

Back-Drive Current Limit while Enabled

0.45

A

Negative current drawn from output

Back-Drive Current Limit while Disabled

10

50

mA

Negative current drawn from output

Maximum Output Capacitance

45,000

µF

1.5Vout at 15A Resistive Load

DYNAMIC CHARACTERISTICS

Input Voltage Ripple Rejection

80

dB

120 Hz; Fig. 20

Output Voltage during Load Current Transient

Step Change in Output Current (0.1A/µs)

50

mV

50% to 75% to 50% Iout max; Figure 11

Step Change in Output Current (5A/µs)

80

mV

50% to 75% to 50% Iout max; Figure 12

Settling Time

300

µs

to within 1% Vout nom

Turn-On Transient

Turn-On Time

14

18

ms

Full load, Vout=90% nom.; Figs. 9 & 10

Start-Up Inhibit Time

180

200

240

ms

-40°C to +125°C; Figure F

Output Voltage Overshoot

0

%

45,000 µF load capacitance, Iout = 0A

EFFICIENCY

100% Load

85.5

%

Figures 1 - 4

50% Load

85.5

%

Figures 1 - 4

TEMPERATURE LIMITS FOR POWER DERATING CURVES

Semiconductor Junction Temperature

125

°C

Package rated to 150°C

Board Temperature

125

°C

UL rated max operating temp 130°C

Transformer Temperature

125

°C

See Figures 5 - 8 for derating curves

ISOLATION CHARACTERISTICS

Isolation Voltage

2000

V

Isolation Resistance

30

M

Ω

Isolation Capacitance

470

pF

PQ60015EML15 ELECTRICAL CHARACTERISTICS

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