ASTEC ALQ07FY48N-8

1
ALQ07 DC-DC Converter
Technical Reference Notes
Industry Standard Size – 36-75V Input, 3.3V/1.8V, 3.3V/1.5V and 3.3V/1.2V dual Output
Features
Industry Standard Size: 2.28”X 1.45’’ X 0.43’’package
•
•
•
•
•
•
•
•
•
•
2.28”X1.45’’ X0.43”package
Basic isolation
High power density
2:1 wide input of 36-75V
CNT function
Trim function
Input under-voltage lockout
Output over-current protection
Output over-voltage protection
Wide operating case temperature range
Options
Choice of positive logic or negative logic for CNT function
Choice of short pins or long pins
Description
The ALQ07 series is a new open frame DC-DC converter. It is one of the most
effective options available in component power. The ALQ07 series uses an industry
standard package size: 36.8mm×57.9mm×10.9mm (2.28”x1.45”x0.43”) and
standard pin-out configuration, provides CNT and trim functions.
ALQ07 series comes in 48V input versions, each of which uses a 2:1 input range of
36~75V. The series can provide [email protected][email protected], [email protected][email protected] and
[email protected][email protected] dual output, and output is isolated from input. And the
converters are capable of providing up to 30 watts of output power.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
2
Contents
Options ......................................................................................................................................1
Description.................................................................................................................................1
Module Numbering ...........................................................................................................................4
Electrical Specifications ....................................................................................................................5
Input Specifications ...................................................................................................................5
Absolute Maximum Ratings .......................................................................................................6
Output Specifications.................................................................................................................7
Output Specifications (Cont.).....................................................................................................8
Feature Specifications ...............................................................................................................9
Characteristic Curves .....................................................................................................................10
Performance Curves – Efficiency ............................................................................................10
Performance Curves – Output Performance Curves ...............................................................11
Performance Curves – Transient Response............................................................................12
Performance Curves – Transient Response (Cont.)................................................................13
Performance Curves – Transient Response (Cont.)................................................................14
Performance Curves – Startup Characteristics........................................................................15
Performance Curves – Startup from CNT Control ...................................................................16
Feature Description ........................................................................................................................17
CNT Function ..........................................................................................................................17
Trim .........................................................................................................................................18
Minimum Load Requirements..................................................................................................19
Output Over-current Protection................................................................................................19
Output Over-voltage Protection ...............................................................................................19
Over Temperature Protection ..................................................................................................19
Output Filters ...........................................................................................................................19
Decoupling ..............................................................................................................................20
Ground Loops..........................................................................................................................20
Design Consideration .....................................................................................................................21
Typical Application...................................................................................................................21
Fusing......................................................................................................................................21
Input Reverse Voltage Protection ............................................................................................22
EMC ........................................................................................................................................22
Safety Consideration ...............................................................................................................24
Thermal Consideration ...................................................................................................................25
MTBF..............................................................................................................................................25
Mechanical Considerations.............................................................................................................26
Installation ...............................................................................................................................26
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
3
Soldering .................................................................................................................................26
Mechanical Chart (pin side view) ....................................................................................................27
Ordering Information.......................................................................................................................28
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
4
Module Numbering
A L Q 07
1 2 3
FM 48 N- 7
4
5
6
7
8
Explanation:
1-Series name
2-Low profile
3-Quarter brick
4-Output current: 7A
5-Dual output: F: 3.3V, M: 1.5V, Y: 1.8V
6-Input voltage range: 36V to 72V
7—CNT logic, N---Negative enable, default is positive enable
8—Pin length:
6---3.80mm
8---2.80mm
7---5.8mm
By default: 5mm
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
5
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage and
temperature conditions. Standard test condition on a single unit is as following:
Ta(ambient):
25 oC
+Vin:
48V±2%
-Vin:
return pin for +Vin
CNT:
connect to COM for negative logic produce
open for positive logic produce
+Vo1, +Vo2:
connect to load
COM:
connect to load (return)
Trim(Vadj):
open
Input Specifications
Parameter
Operating Input Voltage
Maximum Input Current
(VI = 0 to VI,max, Io = Io,max)
Device
Symbol
Min
Typ.
Max
Unit
All
VI
36
48
75
Vdc
All
II,max
-
-
1
A
All
II
-
-
10
mAp-p
All
-
-
-
3.3
W
Input Reflected-ripple Current
(5Hz to 20MHz: 12μH source
impedance: Ta = 25 ºC.)
No Load Input Power
(VI = VI,nom )
CAUTION: This power module is not internally fused. An input line fuse must
always be used.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
6
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage
to the device. These are absolute stress ratings only. Functional operation of the
device is not implied at these or any other conditions in excess of those given in the
operational sections of the IPS. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter
Device
Symbol
Min
Typ.
Max
Unit
Continuous:
All
VI
0
-
80
Vdc
Transient (100ms)
All
VI, trans
0
-
100
Vdc
Operating Ambient Temperature
All
Ta
-40
-
60
ºC
Storage Temperature
All
TSTG
-55
-
125
ºC
Operating Humidity
All
-
-
-
95
%
All
-
-
-
1,500
Vdc
All
Po,max
-
-
30
W
Input Voltage
Basic Input-Output Isolation
(Conditions: 50µA for 5 sec,
slew rate of 1500V/10sec)
Output Power
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
7
Output Specifications
Parameter
Device
Symbol
Min
Typ
Output Ripple and Noise
(When measure ripple, noise and
dynamic response, external 10uF
tantalum capacitor and 0.1uF ceramic
capacitor required for each output.)
All
Max
Unit
Ripple
Noise
Vo1
-
-
50
50
mVp-p
Vo2
-
-
50
50
mVp-p
Vo1
0
-
4000
µF
Vo2
0
-
4000
µF
Vo1set
3.25
3.3
3.35
Vdc
Vo2set
1.77
1.8
1.83
Vdc
Vo1set
3.25
3.3
3.35
Vdc
Vo2set
1.48
1.5
1.52
Vdc
Vo1set
3.25
3.3
3.35
Vdc
Vo2set
1.18
1.2
1.22
Vdc
0.5
%Vo,nom
Peak-to-Peak (5 Hz to 20 MHz)
External Load Capacitance
Output Voltage Setpoint
(Rating input,
[email protected][email protected],
[email protected][email protected],[email protected]+1
.[email protected], Ta = 25 ºC )
Cross regulation
(Any one output Vs. others)
Output Regulation:
Line (Vi=Vi,min to Vi,max)
Load (Io = Io,min to Io,max, other Io
=50%Io,nom)
(Ta=-40 ºC~60ºC)
Rated Output Current
(Io1+Io2≤10A)
Output Current Protection
(When unit is shut down)
All
ALQ07FY
ALQ07FM
ALQ07FK
All
All
Vo1
-
5
8
mV
(Line Regulation)
Vo2
-
3
5
mV
All
Vo1
10
15
mV
(Load Regulation)
Vo2
5
10
mV
Io1
0
-
6
A
Io2
0
-
7
A
All
Io1+ Io2
11
-
15
A
ALQ07FY
-
80
82
%
ALQ07FM
-
80
82
%
ALQ07FK
-
80
82
%
All
-
All
Efficiency
(Rating input,[email protected],
[email protected] ; Ta = 25°C)
Switching Frequency
ALQ07 DC-DC Converter Technical Reference Notes
360
kHz
DATE: Aug., 9, 2003
8
Output Specifications (Cont.)
Parameter
Dynamic
Response*:
(∆Io/∆t = 1A/µs;
VI = VI,nom ;
Ta = 25°C)
Device
Symbol
Min
Typ
Max
Unit
Load Change from Io =
50% to 75% of
Io,max ,when the other
output current is 50%
Io.nom
All
-
-
-
5
%Vo
Peak Deviation Settling
Time (to Vo,nom)
All
-
-
-
200
µsec
Load Change from Io =
50% to 25% of
Io,max ,when the other
output current is 50%
Io.nom.
All
-
-
-
5
%Vo
Peak Deviation Settling
Time (to Vo,nom )
All
-
-
-
200
µsec
All
-
5
10
msec
Vo1
0
3
%Vo
Vo2
0
5
%Vo
Turn-On Time
Output Voltage Overshoot
([email protected],[email protected],
[email protected],[email protected],
[email protected],[email protected]
All
Ta = 25°C)
Note:
The output capacitance 220uF+220uF tantalum (Each capacitor ESR<100m
Ω)may be used to meet the specified dynamic response.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
9
Feature Specifications
Parameter
Device
Symbol
Min
Typ
Max
Unit
Logic Low
All
-0.7
-
1.8
V
Logic High
All
3.5
-
12
V
Enable pin current (Logic Low)
All
-
-
2.0
mA
Output Voltage Adjustment Range
All
Vo2
80
-
110
%Vonom
Over Temperature Protect
All
T
101
115
℃
Vo1
3.90
-
5.00
V
Vo2(1.8V)
2.20
-
2.60
V
Vo2(1.5V)
1.80
-
2.26
V
Vo2(1.2V)
1.45
-
1.80
V
Enable pin
voltage
Output Over-voltage (latch)
All
Turn-on Point
All
-
31
34
36
V
Turn-off Point
All
-
30
33
35
V
Isolation Capacitance
All
-
-
1500
-
pF
Isolation Resistance
All
-
10
-
-
MΩ
All
-
-
1,800,000
-
Hours
All
-
-
-
30
g
Under-voltage
Lockout
Calculated MTBF
(Io = Io,max ; Ta = 25°C)
Weight
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
10
Characteristic Curves
85
85
80
80
75
75
Efficiency (%)
Efficiency (%)
Performance Curves – Efficiency
70
65
60
Vin=36V
55
Vin=48V
50
3
4
5
6
Total output current (A)
7
8
9
Typical Efficiency ALQ07FY*
60
Vin=36V
55
Vin=48V
Vin=75V
45
45
2
65
50
Vin=75V
1
70
1
2
3
4
5
6
Total output current (A)
7
8
9
Typical Efficiency ALQ07FM*
80
75
Efficiency (%)
70
65
60
55
Vin=36V
50
Vin=48V
45
Vin=75V
40
1
2
3
4
5
6
Total output current (A)
7
8
9
Typical Efficiency ALQ07FK*
Note:
Both Io1 and Io2 increase by 10% until Io1+Io2=10A
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
11
Performance Curves – Output Performance Curves
Typical Output Over-current ALQ07FY*
Typical Output Over-current ALQ07FM*
Typical Output Over-current ALQ07FK*
Note:
When Io1+Io2≥10A, the module will shut down
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
12
Performance Curves – Transient Response
ALQ07FY 25%-50%-25%Io1,nom (Io1)
load change, Io2 =50%Io2,nom(ch1:Vo1,ch2:Vo2)
ALQ07FY 25%-50%-25%Io2,nom (Io2)
load change, Io1 =50%Io1,nom(ch1:Vo1,ch2:Vo2)
ALQ07 DC-DC Converter Technical Reference Notes
ALQ07FY 50%-75%-50%Io1,nom (Io1)
load change, Io2 =50%Io2,nom(ch1:Vo1,ch2:Vo2)
ALQ07FY 50%-75%-50%Io2,nom (Io2)
load change, Io1 =50%Io1,nom(ch1:Vo1,ch2:Vo2)
DATE: Aug., 9, 2003
13
Performance Curves – Transient Response (Cont.)
ALQ07FM 25%-50%-25%Io1,nom (Io1)
load change, Io2 =50%Io2,nom(ch1:Vo1,ch2:Vo2)
ALQ07FM 25%-50%-25%Io2,nom (Io2)
load change, Io1 =50%Io1,nom(ch1:Vo1,ch2:Vo2)
ALQ07 DC-DC Converter Technical Reference Notes
ALQ07FM 50%-75%-50%Io1,nom (Io1)
load change, Io2 =50%Io2,nom(ch1:Vo1,ch2:Vo2)
ALQ07FM 50%-75%-50%Io2,nom (Io2)
load change, Io1=50%Io1,nom(ch1:Vo1,ch2:Vo2)
DATE: Aug., 9, 2003
14
Performance Curves – Transient Response (Cont.)
ALQ07FK 25%-50%-25%Io1,nom (Io1)
load change, Io2 =50%Io2,nom(ch1:Vo1,ch2:Vo2)
ALQ07FK 50%-75%-50%Io1,nom (Io1)
load change, Io2 =50%Io2,nom(ch1:Vo1,ch2:Vo2)
ALQ07FK 25%-50%-25%Io2,nom (Io2)
ALQ07FK 50%-75%-50%Io2,nom (Io2)
load change, Io1 =50%Io1,nom(ch1:Vo1,ch2:Vo2)
load change, Io1 =50%Io1,nom(ch1:Vo1,ch2:Vo2)
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
15
Performance Curves – Startup Characteristics
ALQ07FY Start-up from Power On
ALQ07FM Start-up from Power On
ALQ07FK Start-up from Power On
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
16
Performance Curves – Startup from CNT Control
ALQ07FY Start-up from CNT On
ALQ07FM Start-up from CNT On
ALQ07FK Start-up from CNT On
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
17
Feature Description
CNT Function
Two CNT logic options are available. The CNT logic, CNT voltage and the module
working state are as the following Table 1.
L
H
OPEN
N
ON
OFF
OFF
P
OFF
ON
ON
Table 1
N--- means “Negative Logic”, P--- means “Positive Logic”
L--- means “Low Logic Voltage”, -0.7V≤L≤1.8V
H--- means “High Logic Voltage”, 3.5V≤H≤12V
ON--- means “Module is on”, OFF--- means “Module is off”
Open--- means “CNT pin is left open “
Note:
Normally, VCNT ≤12V, but when CNT is left open, VCNT may reach to 15V.
The following Figure shows a few simple CNT circuits.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
18
Trim
The +Vo2 output voltage of the ALQ07 series can be trimmed using the trim pin
provided. Applying a resistor Rtrim between the trim pin and either the COM or +Vo2
pin will cause the +Vo2 output to increase by up to 10% or decrease by down to
20%. Trimming up by more than 10% of the nominal output may activate the OVP
circuit or damage the converter. Trimming down more than 20% can cause the
converter to regulate improperly. If the trim pin is not needed, it should be left open.
Trim up
Trim down
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
19
Minimum Load Requirements
Parameter
Device
Minimum Load
All
Symbol
Typ
Unit
Io1MIN
0
A
Io2MIN
0
A
Output Over-current Protection
For ALQ07 series DC/DC converters, when any output occurs over-current, all
outputs shut down after 100-300ms. The module can be restarted by resetting the
input power or CNT control.
Output Over-voltage Protection
The over-voltage protection has a separate feedback loop, which is activated when
the output voltage exceeds 120% to 150% of the nominal output voltage. The
module can be restarted by resetting the input power or CNT control.
Over Temperature Protection
ALQ07 DC/DC converters will shut down when the temperature of the board
reaches 101℃ to 115℃, and the module will automatically restart if the temperature
of the board is under 100℃.
Output Filters
When the load is sensitive to ripple and noise, an output filter can be added to
minimize the effects. A simple output filter to reduce output ripple and noise can be
made by connecting a capacitor Cout across the output as shown in Figure ‘Output
Ripple Filter’. The recommended value for the output tantalum capacitor Cout is
220uF.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
20
Extra care should be taken when long leads or traces are used to provide power to
the load. Long lead lengths increase the chance for noise to appear on the lines.
Under these conditions C1 can be added across the load, with a 0.1uF ceramic
capacitor C1 in parallel generally as shown in Figure ‘Output Ripple Filter for a
Distant Load’.
Decoupling
Noise on the power distribution system is not always created by the converter. High
speed analog or digital loads with dynamic power demands can cause noise to
cross the power inductor back onto the input lines. Noise can be reduced by
decoupling the load. In most cases, connecting a 10uF tantalum or ceramic
capacitor in parallel with a 0.1uF ceramic capacitor across the load will decouple it.
The capacitors should be connected as close to the load as possible.
Ground Loops
Ground loops occur when different circuits are given multiple paths to common or
earth ground, as shown in Figure ‘Ground Loops’. Multiple ground points can be
slightly different potential and cause current flow through the circuit from one point to
another. This can result in additional noise in all the circuits. To eliminate the
problem, circuits should be designed with a single ground connection as shown in
Figure ‘Single Point Ground’.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
21
Design Consideration
Typical Application
Cin: Recommended input capacitor 47uF, aluminum electrolytic type
Cout: Recommended output capacitor 220uF, Tantalum type, each capacitor
ESR<100mΩ
C1,C2: Recommended 0.1uF ceramic capacitor
Note:
Io1+Io2≤10A
Fusing
The ALQ07 power modules have no internal fuse. An external fuse must always be
employed! To meet international safety requirements, a 250 Volt rated fuse should
be used. If one of the input lines is connected to chassis ground, then the fuse must
be placed in the other input line.
Standard safety agency regulations require input fusing. Recommended fuse rating
for the ALQ07 Series is 2A.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
22
Input Reverse Voltage Protection
Under installation and cabling conditions where reverse polarity across the input
may occur, reverse polarity protection is recommended. Protection can easily be
provided as shown in Figure ‘Reverse Polarity Protection Circuit’. In both cases the
diode used is rated for 3A/100V. Placing the diode across the inputs rather than
in-line with the input offers an advantage in that the diode only conducts in a reverse
polarity condition, this increases circuit efficiency and thermal performance.
Reverse Polarity Protection Circuit
EMC
Input filters are included in the converters to help achieve standard system
emissions certifications. Some users however, may find that additional input filtering
is necessary. The ALQ07 series has an internal switching frequency of 360kHz so a
high frequency capacitor mounted close to the input terminals produces the best
results. To reduce reflected noise, a capacitor can be added across the input as
shown in Figure ‘Ripple Rejection Input Filter’, forming a filter. A 47uF/100V
electrolytic capacitor is recommended for Cin.
Ripple Rejection Input Filter
For conditions where EMI is a concern, a different input filter can be used. The
following figure ‘EMI Reduction Filter’ shows a filter designed to reduce EMI effects.
ALQ07 series can meet EN55022 CLASS A with the following figure.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
23
The recommended values can refer to the following table:
Component
Value/Rating
Type
Description
Price
C1
None
None
None
-
C2
2.2uF/250Vac
Metal film capacitor
-
-
4700pF/250Vac
Safety Y capacitor
-
-
C5、C6
0.022uF/275Vac
Safety Y capacitor
-
-
C7
1000pF/100V
Ceramic
-
-
C12、C13
0.1uF/50V
Ceramic
-
-
Cin
47uF/100V
Aluminum Electrolytic
C3、C4、C8、
C9、C10、C11
Aluminum Electrolytic
-100V-47uF±20%
-
-10*12.5-105℃
Cout
220uF/10V
L1
2.7mH
L2、L3
--
Tantalum
Each capacitor
ESR<100mΩ
Common
Ferrite coreφ16 8/8,
mode
ferrite
Ferrite Bead
Ferrite, 1206
package, 3A/50Ω
ALQ07 DC-DC Converter Technical Reference Notes
-
-
-
DATE: Aug., 9, 2003
24
Safety Consideration
For safety-agency approval of the system in which the power module is used, the
power module must be installed in compliance with the spacing and separation
requirements of the end-use safety agency standard, i.e., UL1950, CSA C22.2 No.
950-95, and EN60950. The ALQ07 series input-to-output isolation is an basic
insulation. The DC/DC power module should be installed in end-use equipment, in
compliance with the requirements of the ultimate application, and is intended to be
supplied by an isolated secondary circuit. When the supply to the DC/DC power
module meets all the requirements for SELV(<60Vdc), the output is considered to
remain within SELV limits (level 3). If connected to a 60Vdc power system, double or
reinforced insulation must be provided in the power supply that isolates the input
from any hazardous voltages, including the ac mains. One input pin and one output
pin are to be grounded or both the input and output pins are to be kept floating.
Single fault testing in the power supply must be performed in combination with the
DC/DC power module to demonstrate that the output meets the requirement for
SELV. The input pins of the module are not operator accessible.
Note: Do not ground either of the input pins of the module, without grounding
one of the output pins. This may allow a non-SELV voltage to appear between
the output pin and ground.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
25
Thermal Consideration
When 48V input, 60℃ ambient temperature, and 150LFM airflow, ALQ07 series are
rated for full power, and in this condition the case temperature can reach 90℃. For
operation above ambient temperature of 60℃, output power must be derated as
shown in Figure ‘Temperature Derating’, meantime, airflow at least 150LFM over the
converter must be provided to make the module working properly. the case
temperature should be used to determine maximum temperature limits. The
minimum operating temperature for the ALQ07 is -40℃.
Temperature Derating Curves
MTBF
The MTBF, calculated in accordance with Bellcore TR-NWT-000332 is 1,800,000
hours. Obtaining this MTBF in practice is entirely possible. If the ambient air
temperature is expected to exceed +25℃, then we also advise an oriented for the
best possible cooling in the air stream.
ASTEC can supply replacements for converters from other manufacturers, or offer
custom solutions. Please contact the factory for details.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
26
Mechanical Considerations
Installation
Although ALQ07 series converters can be mounted in any orientation, free
air-flowing must be taken. Normally power components are always put at the end of
the airflow path or have the separate airflow paths. This can keep other system
equipment cooler and increase component life spans.
Soldering
ALQ07 series converters are compatible with standard wave soldering techniques.
When wave soldering, the converter pins should be preheated for 20-30 seconds at
110℃, and wave soldered at 260℃ for less than 10 seconds.
When hand soldering, the iron temperature should be maintained at 425℃ and
applied to the converter pins for less than 5 seconds. Longer exposure can cause
internal damage to the converter. Cleaning can be performed with cleaning solvent
IPA or with water.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
27
Mechanical Chart (pin side view)
Note: Pin length is optional
Default: 5.8mm±0.5mm ( 0.228in.±0.02in.)
Product name with suffix “-4”: 4.8mm±0.5mm ( 0.189in.±0.02in.)
Product name with suffix “-6”: 3.8mm±0.25mm ( 0.15in.±0.01in.)
Product name with suffix “-8”: 2.8mm±0.25mm ( 0.11in.±0.01in.)
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003
28
Ordering Information
Model
Number
Input
Voltage
(V)
ALQ07FY
36-75
ALQ07FM
ALQ07FK
Output
Voltage
(V)
Output
Current *
(A)
Ripple
(mV ms)
max.
Noise
(mV pp)
max.
Vo1
3.3
6
50
50
Vo2
1.8
4
50
50
Vo1
3.3
6
50
50
Vo2
1.5
4
50
50
Vo1
3.3
6
50
50
Vo2
1.2
4
50
50
Efficiency
% typ.
81
36-75
81
36-75
81
Note:
Io1: 0A~6A, Io2: 0A~7A, Io1+Io2≤10A.
ALQ07 DC-DC Converter Technical Reference Notes
DATE: Aug., 9, 2003