AXH010A0D93-SRZ Lineage Power, AXH010A0D93-SRZ Datasheet - Page 10

• Manufacturer Part Number: AXH010A0D93-SRZ
• Description: DC/DC Converters & Regulators 3.0-5.5V 2.0Vout 10A SMT Remote Sense
• Manufacturer: Lineage Power

Specifications of AXH010A0D93-SRZ

• Product: Non-Isolated / POL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: CC109151437

Lineage Power
Feature Descriptions
Remote On/Off
The Austin Lynx™ SMT power modules feature an
On/Off pin for remote On/Off operation. If not using the
remote On/Off pin, leave the pin open (module will be On).
The On/Off pin signal (Von/off) is referenced to ground. To
switch the module on and off using remote On/Off, connect
an open collector npn transistor between the On/Off pin and
the GND pin (see Figure 20).
During a logic-high (On/Off pin is pulled high internal to the
module) when the transistor is in the off state the power
module is on. The maximum leakage current of the transistor
when Von/off = (VI –0.4) is 10 µA. The module is Off when
the On/Off pin is pulled low (Logic-low) with the transistor in
the active state. During this state VOn/Off is less than 0.3V
and the maximum IOn/Off = 1 mA.
Figure 20. Remote On/Off Implementation.
Output Voltage Set-Point Adjustment (Trim)
Output voltage set-point adjustment allows the output volt-
age set point to be increased or decreased by connecting
either an external resistor or a voltage source between the
TRIM pin and either the VO pin (decrease output voltage) or
GND pin (increase output voltage).
For TRIM-UP using an external resistor, connect Rtrim-up
between the TRIM and GND pins (21). The value of Rtrim-
up defined as:
|ΔVout| is the desired output voltage set-point adjustment
Rbuffer (internal to the module) is defined in Table 1 for vari-
ous models
R
Data Sheet
October 1, 2009
trim up
–
=
I
----------------- - R
on/off
24080
ΔV
out
V
–
+
on/off
buffer
ON/OFF
V
kΩ
I
GND
Austin Lynx
3.0 Vdc - 5.5 Vdc Input, 0.9 Vdc - 3.3 Vdc Output, 10 A
Vo
TM
Table 1. Austin Lynx™ Trim Values
Note: V
For example, to trim-up the output voltage of 1.5V
module (AXH010A0M-SR) by 8% to 1.62V, Rtrim-up is cal-
culated as follows:
Figure 21. Circuit Configuration to trim-up
For trim-down using an external resistor, connect Rtrim-
down between the TRIM and VOUT pins of the module (22).
The value of Rtrim-down is defined as:
Vout is the typical set point voltage of a module
|DVout| is the desired output voltage adjustment
Rbuffer (internal to the module) is defined in Table 1 for vari-
ous models
For example, to trim-down the output voltage of 2.5 V mod-
ule (AXH010G-SR) by 8% to 2.3V, Rtrim-down is calculated
as follows:
R
R
ΔV
R
R
trim up
trim-down
SMT Non-Isolated dc-dc Power Modules:
buffer
trim up
out
VO, set
3.3 V
2.5 V
2.0 V
1.8 V
1.5 V
1.2 V
1.0 V
0.9 V
–
AXH010A0M9-SR
O, set
–
AXH010A0M-SR
=
=
=
is the typical output voltage for the unit.
=
0.12V
output voltage.
=
100kΩ
100.66kΩ
24080
-------------- - 100k
⎛
⎝
0.12
GND
V
------------------------ - 1
out
ΔV
TRIM
–
–
out
78.7 kΩ
30.1 kΩ
5.11 kΩ
Rbuffer
100 kΩ
100 kΩ
100 kΩ
V
59 kΩ
59 kΩ
0.8
O
–
⎞ x30100
⎠
R
trim-up
–
R
buffer
R
LOAD
kΩ
10