CC109104543 Lineage Power, CC109104543 Datasheet - Page 12
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CC109104543
Manufacturer Part Number
CC109104543
Description
Module DC-DC 1-OUT 0.75V to 3.63V 10A 7-Pin SMT T/R
Manufacturer
Lineage Power
Datasheet
1.ATH010A0X3-SRZ.pdf
(21 pages)
Data Sheet
October 2, 2009
Feature Description
Remote On/Off
The Austin Lynx
On/Off pin for remote On/Off operation. Two On/Off
logic options are available in the Austin Lynx
modules. Positive Logic On/Off signal, device code
suffix “4”, turns the module ON during a logic High on
the On/Off pin and turns the module OFF during a logic
Low. Negative logic On/Off signal, no device code
suffix, turns the module OFF during logic High on the
On/Off pin and turns the module ON during logic Low.
For positive logic modules, the circuit configuration for
using the On/Off pin is shown in Figure 29. The On/Off
pin is an open collector/drain logic input signal (Von/Off)
that is referenced to ground. During a logic-high
(On/Off pin is pulled high internal to the module) when
the transistor Q1 is in the Off state, the power module is
ON. Maximum allowable leakage current of the
transistor when Von/off = V
logic-low when the transistor Q1 is turned-On, the
power module is OFF. During this state VOn/Off must
be less than 0.3V. When not using positive logic On/off
pin, leave the pin unconnected or tie to V
Figure 29. Circuit configuration for using positive
logic On/OFF.
For negative logic On/Off devices, the circuit
configuration is shown is Figure 30. The On/Off pin is
pulled high with an external pull-up resistor (typical R
up
logic High is applied to the On/Off pin and the power
module is Off. The minimum On/off voltage for logic
High on the On/Off pin is 1.5Vdc. To turn the module
ON, logic Low is applied to the On/Off pin by turning ON
Q1. When not using the negative logic On/Off, leave
the pin unconnected or tie to GND.
LINEAGE
I
= 5k, +/- 5%). When transistor Q1 is in the Off state,
ON/OFF
GND
VIN+
ON/OFF
POWER
V
Q1
ON/OFF
+
_
TM
II SMT power modules feature an
R1
IN,max
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 10A output current
R2
R3
R4
is 10µA. Applying a
Q2
IN.
MODULE
PWM Enable
Q3
TM
II series
Austin Lynx
CSS
pull-
Figure 30. Circuit configuration for using negative
logic On/OFF.
Overcurrent Protection
To provide protection in a fault (output overload)
condition, the unit is equipped with internal
current-limiting circuitry and can endure current limiting
continuously. At the point of current-limit inception, the
unit enters hiccup mode. The unit operates normally
once the output current is brought back into its specified
range. The typical average output current during hiccup
is 3.0A.
Input Undervoltage Lockout
At input voltages below the input undervoltage lockout
limit, module operation is disabled. The module will
begin to operate at an input voltage above the
undervoltage lockout turn-on threshold.
Overtemperature Protection
To provide protection in a fault condition, the unit is
equipped with a thermal shutdown circuit. The unit
will shutdown if the thermal reference point T
exceeds 125
not intended as a guarantee that the unit will survive
temperatures beyond its rating. The module will
automatically restarts after it cools down.
Output Voltage Programming
The output voltage of the Austin Lynx
programmed to any voltage from 0.75 Vdc to 3.63 Vdc
by connecting a single resistor (shown as Rtrim in
Figure 31) between the TRIM and GND pins of the
module. Without an external resistor between the TRIM
pin and the ground, the output voltage of the module is
0.7525 Vdc. To calculate the value of the resistor Rtrim
for a particular output voltage Vo, use the following
equation:
ON/OFF
VIN+
GND
TM
II SMT Non-isolated Power Modules:
V
Q1
Rtrim
o
R
I
ON/OFF
C (typical), but the thermal shutdown is
pull-up
ON/OFF
+
_
=
⎡
⎢
⎣
Vo
21070
−
. 0
7525
R1
R2
−
5110
MODULE
TM
II SMT can be
PWM Enable
⎤
⎥
⎦
Q2
Ω
ref
,
CSS
12