Rset = Required to set the output voltage to a value
higher than 1.2 V. (See spec. table for values)
C
1
= Required 100 µF capacitor
C
2
= 10 µF ceramic capacitor. Required for output
voltages 3.3 V and higher
C
3
= Optional 100 µF capacitor
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
ATH06K12 Series —12-V Input
6-A, 12-V Input Non-Isolated
Wide-Output Adjust Power Module
REVISION 00 (01DEC2003)
Ordering Information
Input Voltage
10.8V to 13.2V
Options:
“-J”
“-SJ”
“-S”
-
-
-
Output Voltage
1.2
1
to 5.5V
Output Current
6A
Model Number
ATH06K12-9(S)(J)
Through-hole Termination, Tray Packaging
SMT Termination, Tray Packaging
SMT Termination, T&R Packaging
Notes:
1
Preset output voltage is 1.2V; externally adjustable to 5.5V through the Vo,Adjust pin
Pin Descriptions
Vin:
The positive input voltage power node to the mod-
ule, which is referenced to common
GND.
Vout:
The regulated positive power output with respect
to the
GND
node.
GND:
This is the common ground connection for the
Vin
and
Vout
power connections. It is also the 0 VDC
reference for the control inputs.
Vo Adjust:
A 0.1 W 1 % resistor must be directly connected
between this pin and pin 1 (GND) to set the output voltage
to a value higher than 1.2 V. The temperature stability of
the resistor should be 100 ppm/°C (or better). The set-
point range for the output voltage is from 1.2 V to 5.5 V.
The resistor value required for a given output voltage
may be calculated from the following formula. If left
open circuit, the output voltage will default to its lowest
value. For further information on output voltage adjust-
ment consult the related application note.
R
set
= 10 kΩ ·
0.8 V
V
out
– 1.2 V
– 1.82 kΩ
Inhibit:
The Inhibit pin is an open-collector/drain nega-
tive 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.
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 pow-
ered from the same input bus. If unused, the input may
be left unconnected.
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.
ADVANCE INFORMATION
The specification table gives the preferred resistor values
for a number of standard output voltages.
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
ATH06K12 Series —12-V Input
6-A, 12-V Input Non-Isolated
Wide-Output Adjust Power Module
Environmental & Absolute Maximum Ratings
Characteristics
Track Input Voltage
Operating T
emperature Range
Solder Reflow Temperature
Storage T
emperature
Mechanical Shock
Mechanical Vibration
Weight
Flammability
—
—
Symbols
V
track
T
a
T
reflow
T
s
(Voltages are with respect to GND)
Min
–0.2
–40
–40
—
—
—
Typ
—
—
—
TBD
TBD
2.9
Max
V
in
85
235
(i)
125
—
—
—
Units
V
°C
°C
°C
G’s
G’s
grams
Conditions
Over V
in
Range
Surface temperature of module body or pins
—
Per Mil-STD-883D, Method 2002.3
1 msec, ½ Sine, mounted
Mil-STD-883D, Method 2007.2
20-2000 Hz
Meets UL 94V-O
Notes:
(i) During reflow of SMD package version do not elevate peak temperature of the module, pins or internal components above the stated maximum.
Specifications
(Unless otherwise stated, T
a
=25 °C, V
in
=12 V, V
out
=3.3 V, C
1
=100 µF, C
2
=10 µF, C
3
=0 µF, and I
o
=I
o
max)
Symbols
I
o
V
in
V
o
tol
∆Reg
temp
∆Reg
line
∆Reg
load
∆Reg
tot
η
Conditions
1.2 V
≤
V
o
≤
5.5 V
Over I
o
range
–40 °C <T
a
< +85 °C
Over V
in
range
Over I
o
range
Includes set-point, line, load,
–40 °C
≤
T
a
≤
+85 °C
R
SET
= 280
Ω
V
o
=
5.0 V
I
o
=5 A
R
SET
= 2.0 kΩ V
o
=
3.3 V
R
SET
= 4.32 kΩ V
o
=
2.5 V
R
SET
= 8.06 kΩ V
o
=
2.0 V
R
SET
= 11.5 kΩ V
o
=
1.8 V
R
SET
= 24.3 kΩ V
o
=
1.5 V
R
SET
= open cct V
o
=
1.2 V
20 MHz bandwidth
V
o
≤2.5
V
V
o
>2.5
V
Reset, followed by auto-recovery
1 A/µs load step, 50 to 100 % I
o
max,
C
3
=100 µF
Recovery Time
V
o
over/undershoot
Pin to GND
V
track
– V
o
≤
50 mV and V
track
< V
o
(nom)
V
in
increasing
V
in
decreasing
Referenced to GND
Pin to GND
Inhibit (pin 4) to GND, Track (pin 2) open
Over V
in
and I
o
ranges
85 °C, 400 LFM airflow
60 °C, natural convection
Min
0
0
10.8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
—
8.8
V
in
–0.5
–0.2
—
—
260
100
(4)
0
TBD
ADVANCE INFORMATION
Characteristics
Output Current
Input Voltage Range
Set-Point Voltage T
olerance
Temperature Variation
Line Regulation
Load Regulation
Total Output Variation
Efficiency
ATH06K12
Typ
—
—
—
—
±0.5
±5
±5
—
93
91
89
88
87
86
84
25
1
TBD
70
100
—
—
9.5
9
—
—
–0.24
10
320
—
100
(5)
—
Max
6
(1)
6
(1)
13.2
±2
(2)
—
—
—
±3
—
—
—
—
—
—
—
—
—
—
—
—
–0.13
—
10.4
—
Open
0.5
—
—
380
—
TBD
—
(2)
Units
A
V
%V
o
%V
o
mV
mV
%V
o
%
V
o
Ripple (pk-pk)
Over-Current Threshold
Transient Response
V
r
I
o
trip
t
tr
∆V
tr
I
IL
track
dV
track
/dt
UVLO
V
IH
V
IL
I
IL
inhibit
I
in
inh
ƒ
s
C
1
, C
2
C
3
MTBF
mVpp
% V
o
A
µSec
mV
mA
V/ms
V
(3)
Track Input Current (pin 2)
Track Slew Rate Capability
Under-Voltage Lockout
Inhibit Control (pin 4)
Input High Voltage
Input Low Voltage
Input Low Current
Input Standby Current
Switching Frequency
External Input Capacitance
External Output Capacitance
Reliability
(3)
V
mA
mA
kHz
µF
µF
10
6
Hrs
Per Bellcore TR-332
50 % stress, T
a
=40 °C, ground benign
Notes:
(1) See SOA curves or consult factory for appropriate derating.
(2) The set-point voltage tolerance is affected by the tolerance and stability ofR
SET
. The stated limit is unconditionally met if R
SET
has a tolerance of 1 %
with 100 ppm/°C or better temperature stability.
(3) This control pin has an internal pull-up to the input voltage Vin (7.5 V for pin 2). If it is left open-circuit the module will operate when input power is
applied. A small low-leakage (<100 nA) MOSFET is recommended for control. For further information, consult the related application note.
(4) A 100 µF electrolytic input capacitor is required for proper operation. The electrolytic capacitor must be rated for a minimum of 750 mA rms of ripple
current. An additional 10 µF ceramic capacitor is required for output voltages 3.3 V and higher. For further information, consult the related application
note on capacitor selection.
(5) An external output capacitor is not required for basic operation. Adding 100 µF of distributed capacitance at the load will improve the transient response.
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
ATH06K12 Series —12-V Input
6-A, 12-V Input Non-Isolated
Wide-Output Adjust Power Module
Typical Characteristics
Characteristic Data; V
in
=12 V
Efficiency vs Load Current
100
(See Note A)
Safe Operating Area; V
in
=12 V
Output Voltage =3.3 V
90
80
(See Note B)
Ambient Temperature (°C)
90
V
OUT
5.0 V
3.3 V
2.5 V
2.0 V
1.8 V
1.5 V
1.2 V
70
60
50
40
30
Airflow
400LFM
200LFM
100LFM
Nat Conv
Efficiency - %
80
70
60
50
0
1
2
3
4
5
6
20
0
1
2
3
4
5
6
Iout - Amps
Iout (A)
Output Ripple vs Load Current
80
V
OUT
60
ADVANCE INFORMATION
40
20
5.0 V
3.3 V
2.5 V
2.0 V
1.8 V
1.5 V
1.2 V
Ripple - mV
0
0
1
2
3
4
5
6
Iout - Amps
Power Dissipation vs Load Current
4
V
OUT
3
2
1
5.0 V
3.3 V
2.5 V
2.0 V
1.8 V
1.5 V
1.2 V
Pd - Watts
0
0
1
2
3
4
5
6
Iout - Amps
The products listed hereunder are prototype or pre-production devices which have not been fully qualified to Astec’s
specifications. Product specifications are subject to change without notice. Astec makes no warranty, either expressed,
implied, or statutory, including implied warranty of merchantability or fitness for a specific purpose, of these products.
Note A:
Characteristic data has been developed from actual products tested at 25°C. This data is considered typical data for the Converter.
Note B:
SOA curves represent the conditions at which internal components are at or below the manufacturer’s maximum operating temperatures. Derating limits apply to
modules soldered directly to a 4 in.
×
4 in. double-sided PCB with 1 oz. copper.
North America (USA): 1-888-41-ASTEC
Europe (UK): 44(1384)842-211
Asia (HK): 852-2437-9662
Application Notes
ATH06K12 Series
Adjusting the Output Voltage of the ATH06K12
Wide-Output Adjust Power Module
The
V
o
Adjust
control (pin 5) is used to set the output
voltage to a value higher than 1.2 V. The adjustment
method requires the addition of a single external resistor,
R
set
, that must be connected directly between the
V
o
Adjust
and
GND
pins
1
. Table 1-1 gives the preferred value for
the external resistor for a number of standard voltages,
along with the actual output voltage that this resistance
value provides.
For other output voltages the value of the required resistor
can either be calculated using the following formula, or
simply selected from the range of values given in Table 1-2.
Figure 1-1 shows the placement of the required resistor.
R
set
= 10 kΩ ·
0.8 V
V
out
– 1.2 V
– 1.82 kΩ
Table 1-2; Output Voltage Set-Point Resistor Values
V
a
Req’d
1.200
1.225
1.250
1.275
1.300
1.325
1.350
1.375
1.400
1.425
1.450
1.475
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
R
set
Open
318 kΩ
158 kΩ
105 kΩ
78.2 kΩ
62.2 kΩ
51.5 kΩ
43.9 kΩ
38.2 kΩ
33.7 kΩ
30.2 kΩ
27.3 kΩ
24.8 kΩ
21 kΩ
18.2 kΩ
16 kΩ
14.2 kΩ
12.7 kΩ
11.5 kΩ
10.5 kΩ
9.61 kΩ
8.85 kΩ
8.18 kΩ
7.59 kΩ
7.07 kΩ
6.6 kΩ
6.18 kΩ
5.8 kΩ
5.45 kΩ
5.14 kΩ
4.85 kΩ
4.85 kΩ
4.33 kΩ
4.11 kΩ
3.89 kΩ
3.7 kΩ
3.51 kΩ
V
a
Req’d
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
R
set
3.34 kΩ
3.18 kΩ
3.03 kΩ
2.89 kΩ
2.75 kΩ
2.62 kΩ
2.5 kΩ
2.39 kΩ
2.28 kΩ
2.18 kΩ
2.08 kΩ
1.99 kΩ
1.9 kΩ
1.82 kΩ
1.74 kΩ
1.66 kΩ
1.58 kΩ
1.51 kΩ
1.38 kΩ
1.26 kΩ
1.14 kΩ
1.04 kΩ
939
Ω
847
Ω
761
Ω
680
Ω
604
Ω
533
Ω
466
Ω
402
Ω
342
Ω
285
Ω
231
Ω
180
Ω
131
Ω
85
Ω
41
Ω
Table 1-1; Preferred Values of R
set
for Standard Output Voltages
V
out
(Standard)
5V
3.3 V
2.5 V
2V
1.8 V
1.5 V
1.2 V
R
set
(Pref’d Value)
280
Ω
2 kΩ
4.32 kΩ
8.06 kΩ
11.5 kΩ
24.3 kΩ
Open
V
out
(Actual)
5.009 V
3.294V
2.503 V
2.010V
1.801 V
1.506 V
1.200 V
Figure 1-1; V
o
Adjust Resistor Placement
V
IN
2
Track
3
ATH06K12-9S
V
IN
PTH12050W
V
O
Inhibit GND Adjust
4
1
5
6
V
OUT
C
1
100 µF
(Required)
C
2
*
10 µF
(Ceramic)
R
SET
0.1 W
1%
C
3
100 µF
(Optionable)
Notes:
1. Use a 0.1 W resistor. The tolerance should be 1 %, with
temperature a stability of 100 ppm/°C (or better). Place
the resistor as close to the regulator as possible. Connect
the resistor directly between pins 1 and 5 using dedicated
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