DESCRIPTION: The PT4840 Excalibur™ power
modules are a series of isolated triple output
DC/DC converters that
operate from a standard (–48V) central
office supply. Rated for up to 65W,
these regulators are appropriate for
powering both analog and mixed signal
circuitry. A typical application
is a chip-set for an ADSL/DSL line
card.
The output voltage combinations
offered by the PT4840 series provide
power for a low-voltage processor
core, the associated digital circuitry,
and analog support circuitry.
The PT4840 series incorporates
many features to simplify system
integration. These include a flexible
On/Off control, over-temperature
protection, and an input undervoltage
lock-out. All outputs are
current limited and short-circuit
protected. In addition, the lowvoltage
outputs for processor core
and digital circuitry meet the powerup
and power-down sequencing
requirements of popular DSP ICs.
The PT4840 series is housed in
a space-saving solderable case. The
module requires no external heat sink
and can occupy as little as 1.97 sq. in. of
PCB area.
FEATURES:
- DSL Triple Outputs (Independantly Regulated)
- Vo1 = +15V
- Vo2 = +3.3V
- V03 = +1.5V
- Input Voltage Range: 36V to 75V
- 1500VDC Isolation
- On/Off Control
- Current Limit
- Short Circuit Protection (All Outputs)
- Over-Temperature Shutdown
- Under-Voltage Lockout
- Space Saving Package: 1.9 sq. in.
- Solderable Copper Case
- Package Type: SIP Module
- Pins: 26
- Safety Approvals: UL60950 CSA 22.2 950 VDE EN60950
These are from their original packaging and are unused -- excellent condition.
