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PTB48560C ELECTRICAL CHARACTERISTICS

PTB48560A, PTB48560B

PTB48560C

SLTS236A–MARCH 2005–REVISED OCTOBER 2005

PTB48560C

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

Output current

A

Input voltage range

36

48

75

V

Set-point voltage tolerance

Temperature variation

±0.5

Line regulation

±0.2

±1

Load regulation

±0.4

±1

Total output voltage variation

±2

Adjust range

9

13.2

V

88%

η

Efficiency

86%

20-MHz bandwidth

1

0.1 A/µs load step,

Recovery time

100

µs

Transient Response

50% to 100%

±150

mV

Input current

Track connected to -Sense

0.48

mA

Track input (pin 5)

Open-circuit voltage

0

2

V

Output enable inputs (pins 2, 3)

0.8

–0.48

mA

Standby input current

Pins 2 and 3 open

8

16

mA

Overcurrent threshold

Shutdown, followed by autorecovery

3.75

A

34

UVLO

Undervoltage lockout

V

33

Switching frequency

400

500

600

kHz

Internal input capacitance

1µF

External output capacitance

100

1,500

µF

Isolation voltage

Input-output

1,500

Vdc

Isolation capacitance

Input-output

2,000

pF

Isolation resistance

Input-output

10

MΩ

MTBF

Reliability

3.4

benign

(1) The converter requires a minimum load current for proper operation. The converter is not damaged when operated under a no-load

condition.

(2) See temperature derating curves for safe operating area (SOA), to determine output current derating at elevated ambient temperatures.

tolerance of 1%, with 100 ppm/°C temperature stability.

(4) The PEN and NEN enable inputs each have an internal pullup resistor. If the enable feature is not used, the PEN input (pin 2) should be

the enable control. The open-circuit voltage is less than 10 V. See the Application Information for a more detailed description.

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