Datasheet

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PIN ASSIGNMENT
PTN78000A
(Top View)
1
4
2
3
5
PTN78000A
SLTS246B–APRIL 2005 – REVISED JANUARY 2006
TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME NO.
The negative output voltage power node with respect to the GND node. It is also the reference for the
V
O
1O
V
O
Adjust control inputs.
V
I
2 I The positive input voltage power node to the module, which is referenced to common GND.
N/C 3 This pin is active and must be isolated from any electrical connection.
A 1% resistor must be connected between pin 1 and pin 4 to set the output voltage of the module lower
than –3 V. If left open-circuit, the output voltage defaults to –3 V. The temperature stability of the resistor
V
O
Adjust 4 I
should be 100 ppm/°C (or better). The set-point range is –15 V to –3 V. The standard resistor value for
a number of common output voltages is provided in the application information.
GND 5 I/O The common ground connection for the V
I
and V
O
power connections.
4