pth03010 Astec Powe, pth03010 Datasheet - Page 5

• Manufacturer Part Number: pth03010
• Description: Pth03020 3.3vin Single
• Manufacturer: Astec Powe

3. Mechanical Information
3.1 Mechanical Outline Drawings
3.2 Pin-out Table
Tolerances (unless otherwise specified)
Tolerances (unless otherwise specified)
0.060
(1.52)
(1.52)
0.060
Dimensions in Inches (mm)
Dimensions in Inches (mm)
2 Places ±0.030 (±0.76)
3 Places ±0.010 (±0.25)
2 Places ±0.030 (±0.76)
3 Places ±0.010 (±0.25)
Figure 1 - Plated Through-Hole Mechanical Drawing
1
2
1
2
0.125 (3.18)
0.125 (3.18)
Figure 2 - Surface Mount Mechanical Drawing
(12.70)
(12.70)
0.500
0.500
0.125 (3.18)
0.125 (3.18)
PIN NUMBER
10
10
1.495 (37.97)
3
3
1.495 (37.97)
TOP VIEW
TOP VIEW
9
9
4
4
Table 3 - Pin Connections
8
8
10
1
2
3
4
5
6
7
8
9
5
5
0.625 (15.88)
PIN CONNECTIONS
0.625 (15.88)
File Name: an_pth03020.pdf Rev (05): 21 Dec 2005
6
7
7
6
(19.05)
0.060
(1.52)
0.750
(19.05)
0.060
(1.52)
0.750
Margin down
FUNCTION
(22.10)
Margin up
0.870
Ground
Ground
V
V
(22.10)
Inhibit
0.870
Track
o adjust
o sense
V
V
out
in
0.354
(9.00)max.
0.140
(3.55)
Side View
0.354 (9.00)
SIDE VIEW
max.*
Host Board
(0.070 (1.78)
(Standoff Shoulder)
Lowest Component
0.010 min. (0.25)
Bottom side Clearance
ø
10 Places
0.040 (1.02)
*After solder reflow
on customer board
Solder Ball
ø0.040 (1.02)
10 Places
3.3 Pin Description
3.3.1 Ground
This is the common ground connection for the V
connections. It is also the 0 Vdc reference for the control inputs.
3.3.2 V
The positive input voltage power node to the module, which is
referenced to common GND.
3.3.3 Inhibit
The Inhibit pin is an open-collector/drain negative logic input that is
referenced to GND. Applying a low level ground signal to this input
disables the module’s output and turns off the output voltage. When
the Inhibit control is active, the input current drawn by the regulator
is significantly reduced. If the Inhibit pin is left open-circuit, the
module will produce an output whenever a valid input source is
applied.
3.3.4 V
A 0.1 W, 1% tolerance (or better) resistor must be connected
between this pin and the GND pin to set the output voltage to the
desired value. The set point range for the output voltage is from
0.8 V to 2.5 V. The resistor required for a given output voltage may
be calculated from the following formula. If left open circuit, the
module output will default to its lowest output voltage value.
The specification table gives the preferred resistor values for a
number of standard output voltages.
3.3.5 V
The sense input allows the regulation circuit to compensate for
voltage drop between the module and the load. For optimal voltage
accuracy V
disconnected.
3.3.6 V
The regulated positive power output with respect to the GND node.
3.3.7 Track
This is an analog control input that enables the output voltage to
follow an external voltage. This pin becomes active typically 20 ms
after the input voltage has been applied, and allows direct control of
the output voltage from 0 V up to the nominal set-point voltage.
Within this range the output will follow the voltage at the Track pin on
a volt-for-volt basis. When the control voltage is raised above this
range, the module regulates at its set-point voltage. The feature
allows the output voltage to rise simultaneously with other modules
powered from the same input bus. If unused, the input should be
connected to Vin. Note: Due to the under-voltage lockout feature, the
output of the module cannot follow its own input voltage during
power up. For more information, consult the related application note.
3.3.8 Margin Down
When this input is asserted to GND, the output voltage is decreased
by 5% from the nominal. The input requires an open-collector (open-
drain) interface. It is not TTL compatible. A lower percent change can
be accomodated with a series resistor.
3.3.9 Margin Up
When this input is asserted to GND, the output voltage is increased
by 5%. The input requires an open-collector (open-drain) interface. It
is not TTL compatible. The percent change can be reduced with a
series resistor.
Application Note 151
www.artesyn.com
in
o
o
out
Adjust
Sense
o
Sense should be connected to V
out
. It can also be left
in
and V
out
power
5