CC109112397 Lineage Power, CC109112397 Datasheet - Page 12

• Manufacturer Part Number: CC109112397
• Description: Module DC-DC 1-OUT 0.8V to 2V 30A 8-Pin SMT T/R
• Manufacturer: Lineage Power
• Type: Step Downr

Specifications of CC109112397

• Package: 8SMT
• Output Current: 30 A
• Output Voltage: 0.8 to 2 V
• Input Voltage: 3.3 V
• Number Of Outputs: 1

Data Sheet
October 21, 2009
Output Voltage Programming
The output voltage of the ATM030 module can be
programmed to any voltage from 0.8dc to 2.0Vdc by
connecting a resistor (shown as R
between Trim and GND pins of the module.
Without an external resistor between Trim and GND
pins, the output of the module will be 0.8Vdc. To
calculate the value of the trim resistor, R
desired output voltage, use the following equation:
R
Vo is the desired output voltage
By using a ±0.5% tolerance trim resistor with a TC
of ±100ppm, a set point tolerance of ±1.5% can be
achieved as specified in the electrical specification.
The POL Programming Tool, available at
www.lineagepower.com
section, helps determine the required external trim
resistor needed for a specific output voltage.
Figure 31. Circuit configuration to program
output voltage using an external resistor.
Voltage Margining
Output voltage margining can be implemented in
the Austin MegaLynx
resistor, R
pin for margining-up the output voltage and by
connecting a resistor, R
to output pin for margining-down. Figure 32 shows
the circuit configuration for output voltage
margining. The POL Programming Tool, available
at
section, also calculates the values of R
R
margin. Please consult your local Lineage Power
technical representative for additional details.
LINEAGE
trim
margin-down
www.lineagepower.com
is the external resistor in Ω
V
ON/OFF
IN
(+)
margin-up
POWER
for a specific output voltage and %
R
GND
trim
, from the Trim pin to the ground
=
V
TRIM
⎡
⎢ ⎣
O
Vo
(+)
TM
1200
margin-down
−
modules by connecting a
under the Design Tools
. 0
under the Design Tools
80
−
, from the Trim pin
100
trim
Austin MegaLynx
⎤
⎥ ⎦
in Figure 31)
Ω
Rtrim
margin-up
2.7 – 4.0Vdc input; 0.8 to 2.0Vdc Output; 30A output current
trim
for a
and
LOAD
TM
Voltage Sequencing
The Austin MegaLynx
sequencing feature that enables users to implement
various types of output voltage sequencing in their
applications. This is accomplished via an additional
sequencing pin. When not using the sequencing
feature, either leave the SEQ pin unconnected or
tied to V
Figure 32. Circuit Configuration for margining
Output voltage.
For proper voltage sequencing, first, input voltage is
applied to the module. The On/Off pin of the
module is or tied to GND so that the module is ON
by default. After applying input voltage to the
module, a minimum of 10msec delay is required
before applying voltage on the SEQ pin. After
10msec delay, an analog voltage is applied to the
SEQ pin and the output voltage of the module will
track this voltage on a one-to-one volt bases until
output reaches the set-point voltage. To initiate
simultaneous shutdown of the modules, the SEQ
pin voltage is lowered in a controlled manner.
Output voltage of the modules tracks the voltages
below their set-point voltages on a one-to-one
basis. A valid input voltage must be maintained
until the tracking and output voltages reach ground
potential.
When using the EZ-SEQUENCE
control start-up of the module, pre-bias immunity
feature during start-up is disabled. The pre-bias
immunity feature of the module relies on the module
being in the diode-mode during start-up. When
using the EZ-SEQUENCE
through an internal set-up time of 10msec, and will
be in synchronous rectification mode when voltage
SMT: Non-Isolated DC-DC Power Modules:
Austin Lynx or
Lynx II Series
IN
.
Trim
Vo
GND
TM
Rtrim
series of modules include a
TM
feature, modules goes
Q2
Q1
TM
feature to
Rmargin-down
Rmargin-up
12