AT45D15-1 [DATEL]
Up to 30 Watt DC-DC Converter;
| 型号： | AT45D15-1 |
| 厂家： | 
DATEL, Inc. |
| 描述： | Up to 30 Watt DC-DC Converter |
| 文件： | 总16页 (文件大小：1029K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
PRODUCT OVERVIEW
The AT series offer up to 30 watts of output power in standard 2.00 x 1.00 x 0.4 inches
packages. This series features high efficiency and 1500 Volts of DC isolation. The AT
series provides a 4:1 wide input voltage range of 9 to 36 or 18 to 75VDC, and delivers
accurate regulated output. These modules operate over the ambient operating
temperature range of –40°C to +85°C. These converters are fully protected against input
UVLO (Under Voltage Lock Out), over-current, over-voltage and continuous short circuit
protection. In addition, the option control functions include Positive Remote On/Off and
adjustable output voltage.
APPLICATIONS:
FEATURES
.
.
.
.
Distributed Power Architecture
Mobile telecommunication
Industrial applications
.
.
Industry standard footprint (2 inch X 1 inch)
Regulated Outputs, Fixed Switching
Frequency
Battery operated equipment
.
.
.
.
.
.
.
Up to 92 % Efficiency
4:1 Input Range
AVAILABLE OPTIONS
Up to 30 Watts of Power
-40°C to +85°C temperature range
Remote On/Off logic control (Option)
No Tantalum Capacitors
.
.
.
Customizable output voltages
CE Mark 2004/108/EC certification
UL60950-1, EN60950-1, and IEC60950-1 safety
Continuous Short Circuit and Over Current
Protection
Contact DATEL for other series in 2.00" x 1.00" footprint
Cost Savings, Lower Power, Other Voltage outputs, Higher Efficiency, etc.
.
MODEL NUMBER
AT22S3.3-7.5
AT22S5-6
AT22S12-2.5
AT22S15-2
AT22D12-1.25
AT22D15-1
AT45S3.3-7.5
AT45S5-6
AT45S12-2.5
AT45S15-2
AT45D12-1.25
AT45D15-1
INPUT VOLTAGE
9-36 VDC
9-36 VDC
9-36 VDC
9-36 VDC
9-36 VDC
9-36 VDC
18-75VDC
18-75VDC
18-75VDC
18-75VDC
18-75VDC
18-75VDC
OUTPUT VOLTAGE
3.3VDC
OUTPUT CURRENT MAX
EFFICIENCY %
LOAD REGULATION
0.5 %
0.5 %
0.5 %
0.5 %
1 %
LINE REGULATION
0.2 %
7.5 A
6 A
2.5 A
2 A
1.25 A
1 A
7.5 A
6 A
2.5 A
2 A
1.25 A
1 A
88
89
91
91
87
88
87
89
91
92
91
92
5.0 VDC
12 VDC
15 VDC
12 VDC
15 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
12 VDC
0.2 %
0.2 %
0.2 %
0.5 %
0.5 %
0.2 %
0.2 %
0.2 %
1 %
0.5 %
0.5 %
0.5 %
0.5 %
1 %
0.2 %
0.5 %
0.5 %
15 VDC
1 %
FUNCTIONAL BLOCK DIAGRAM
January 17, 2018 A.01
Page 1 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
ABSOLUTE MAXIMUM RATINGS
Parameters
Conditions
DC
Model
Min.
Typical
Max.
Units
Input Voltage
24Vin
48Vin
24Vin
0
0
36
75
50
Continuous
Transient
Volts
Volts
100ms, DC
48Vin
All
All
All
All
100
+85
+105
+125
1500
Operating Ambient Temperature
Case Temperature
Storage Temperature
Derating, Above 78℃
-40
-55
℃
℃
℃
Input / Output Isolation Voltage
1 minute
Volts
INPUT CHARACTERISTICS
Note: All specifications are typical at nominal input, full load at 25℃ unless otherwise noted
Parameters
Conditions
Model
24Vin
Min.
9
Typical
24
Max.
36
Units
Volts
Operating Input Voltage
48Vin
24Vin
48Vin
18
48
3800
1900
100
110
50
50
60
60
50
75
100% Load, Vin =9V
100% Load, Vin =18V
Maximum Input Current
No-Load Input Current
mA
AT22S3.3-7.5
AT22S5-6
AT22S12-2.5
AT22S15-2
AT22D12-1.25
AT22D15-1
AT45S3.3-7.5
AT45S5-6
Vin =Nominal input
mA
50
AT45S12-2.5
AT45S15-2
AT45D12-1.25
AT45D15-1
30
30
40
40
Input UnderVoltage Lockout
Turn-On Voltage Threshold
24Vin
48 Vin
24Vin
48 Vin
24Vin
48 Vin
All
8
16.5
7.7
15.5
8.5
17
8.5
16
0.5
0.9
8.8
17.5
8.8
VDC
VDC
VDC
VDC
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
16.5
VDC
Inrush Current (I2t)
Input Reflected-Ripple Current
AT per ETS300 132-2
P-P thru 12uH inductor, 5Hz to 20MHz
0.1
30
A2s
mA
All
January 17, 2018 A.01
Page 2 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
OUTPUT CHARACTERISTIC
Parameters
Conditions
Model
Min.
3.267
4.95
11.88
14.85
11.88
14.85
Typical
3.3
5
12
15
Max.
3.333
5.05
12.12
15.15
12.12
15.15
Units
Volts
%
Vo=3.3
Vo=5.0
Vo=12
Vo=15
Vo= 12
Vo= 15
Output Voltage Set Point
Vin =Nominal Vin , Io = Io_max, Tc=25℃
Vin =nominal, Io= Io_max, Tc=25℃
12
15
Output Voltage Balance
Dual
1.0
Output Voltage Regulation
Single
Dual
Single
Dual
0.2
0.5
0.5
1.0
0.02
5
%
%
%
%
%/℃
%
Line Regulation
Load Regulation
Vin =High line to Low line Full Load
Io = Full Load to min. Load
Temperature Coefficient
Cross Regulation
Output Voltage Ripple and Noise
TC=-40℃ to 80℃
Load cross variation 10%/100%
5Hz to 20MHz bandwidth
Dual
Vo=3.3V
Vo=5V
75
Full Load, 20MHz bandwidth 0.1uF ceramic
capacitor
Vo=12V
Vo=15V
Vo= 15V
Vo= 12V
Vo=3.3V
Vo=5V
Vo=12V
Vo=15
Vo= 12V
Vo= 15V
Peak-to-Peak
mV
100
0
0
0
0
0
0
7500
6000
2500
2000
1250
1000
Operating Output Current Range
Output DC Current-Limit Inception
mA
%
Output Voltage=90% VO, nominal
Full load, Resistance
All
110
140
160
Vo=3.3V
Vo=5V
Vo=12V
Vo=15V
Vo= 12V
Vo= 15V
7500
6000
2500
2000
1250
1000
Maximum Output Capacitance
µF
DYNAMIC CHARACTERISTICS
Parameters
Conditions
Model
Min.
Typical
Max.
Units
Output Voltage Current Transient
Step Change in Output Current
All
All
5
%
75% to 100% of Io_max
di/dt=0.1A/us
Setting Time (within 1% Vo nominal
Turn-On Delay and Rise Time
)
250
µs
Vin=24V
Vin=48V
3
3
Turn-On Delay Time, From Input
Vin _min to 10%Vo_set
Von/off to 10%Vo,set
10% Vo_set to 90% Vo_set
ms
ms
ms
Turn-On Delay Time, From On/Off Control
Output Voltage Rise Time
All
2.5
Vin=24V
Vin=48V
3
3
January 17, 2018 A.01
Page 3 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
FEATURE CHARACTERISTICS
Parameters
Conditions
Model
Min. Typical
Max.
Units
%
AT22S3.3-7.5
AT22S5-6
AT22S12-2.5
AT22S15-2
AT22D12-1.25
AT22D15-1
AT45S3.3-7.5
AT45S5-6
AT45S12-2.5
AT45S15-2
87
90
91
92
91
92
88
90
90
91
90
91
Vin =24 Vdc, Io = Io_max, Tc=25℃
Efficiency 100% Load
Vin =48 Vdc, Io = Io_max, Tc=25℃
%
AT45D12-1.25
AT45D15-1
ISOLATION CHARACTERISTICS
Input to Output
Isolation Resistance
Isolation Capacitance
1 minutes
All
All
All
1500
Volts
MΩ
pF
1000
1000
Vin=24V
Vin=48
430
430
Switching Frequency
KHz
On/Off Control (Option P) , Positive Remote On/Off logic
3.5 or
Open
Circui
t
Logic High (Module On)
Von/off at Ion/off=0.1uA
All
75
Volts
Logic Low (Module Off)
Output Voltage Trim range (Option T)
ON/OFF Current
Von/off at Ion/off=0.1uA
At rated Power
Ion/off at Von/off=0.0V
Logic High, Von/off=15V
All
All
1.2
+10
1
Volts
%
mA
µA
-10
0.3
Leakage Current
30
Vo=3.3V
Vo=5V
Vo=12V
Vo=15V
Vo= 12V
3.9
6.2
15
18
15
Output Over Voltage Protection
Zener or TVS Clamp
VDC
Vo= 15V
Single
Dual
18
900
650
35
MTBF
Io =100%of Io_max;Ta=25℃ per MIL-HDBK-217F
K hours
grams
Weight
All
January 17, 2018 A.01
Page 4 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
Operating Temperature Range
The AT series of converters operates over the wide temperature of
-405℃ to +85℃. This module starts to derate above +65℃. The module
operate normally up to +105℃ case temperature.
Output Voltage Adjustment
The output voltage on the T option models is adjustable within the range
of -10% to +10%.
Remote ON/OFF (Option)
The remote ON/OFF input feature of the converter allows external
circuitry to turn the converter ON or OFF. Active-high remote ON/OFF is
available as standard. The converter is turned on if the remote ON/OFF
pin is high (>3.5Vdc to 75Vdc or open circuit). Setting the pin low
(<1.2Vdc) will turn the converter ‘Off’. The signal level of the remote
on/off input is defined with respect to “-Vin”. If not using the remote
on/off pin, leave the pin open (module will be on).
UVLO (Under Voltage Lock Out)
Recommended PCB Layout Footprints, Dimensions are in inches (mm)
Input under voltage lockout is standard on the AT unit. The unit will shut
down when the input voltage drops below a threshold, and the unit will
operate when the input voltage goes above the upper threshold.
Lead Free Wave Soldering Profile
Over Current Protection
All models have internal over current and continuous short circuit
protection. The unit operates normally once the fault condition is
removed. At the point of current limit inception, the converter will go into
hiccup mode protection.
300
200
100
0
Over Voltage Protection
The over-voltage protection consists of a Zener diode to limit the output
voltage.
0
50
100
150
Over-Temperature Protection (OTP)
Time (Seconds)
The AT series converters are equipped with non-latching
over-temperature protection. If the temperature exceeds a threshold of
110°C (typical) the converter will shut down, disabling the output. When
the temperature has decreased the converter will automatically restart.
The over-temperature condition can be induced by a variety of reasons
such as external overload condition or a system fan failure.
Wave Soldering Profiles
Note：
1. Soldering Materials: Sn/Cu/Ni
Recommended Layout PCB Footprints and
Soldering Information
2. Ramp up rate during preheat: 1.4 ℃/Sec (From 50℃ to 100℃)
3. Soaking temperature: 0.5 ℃/Sec (From 100℃ to 130℃), 60 20
seconds
4. Peak temperature: 260℃, above 250℃ 3~6 Seconds
5. Ramp up rate during cooling: -10.0 ℃/Sec (From 260℃ to 150℃)
The end user of the converter must ensure that other components and
metal in the vicinity of the converter meet the spacing requirements to
which the system is approved. Low resistance and low inductance PCB
layout traces should be used where possible. Careful consideration must
also be given to proper low impedance tracks between power module,
input and output grounds. The recommended footprints and soldering
profiles are shown in the next two figures
January 17, 2018 A.01
Page 5 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
AT Series power de-rating Curves
Note that the converter operating ambient temperature range is -40℃ to + 85℃ with derating above +65℃. Also, maximum case temperature under
any operating condition should not exceed +105℃.
January 17, 2018 A.01
Page 6 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
Efficiency vs. Load Curves
January 17, 2018 A.01
Page 7 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
January 17, 2018 A.01
Page 8 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
Input Capacitance at the Converter
In order to avoid problems with loop stability, the converter must be
connected to a low impedance AC source and a low inductance source.
The input capacitors (Cin) should be placed close to the converter input
pins to de-couple distribution inductance. The external input capacitors
should have low ESR in order to quiet any ripple. Circuit AT shown in
the figure below represents typical meATurement methods for reflected
ripple current. The capacitor C1 and inductor L1 simulate the typical
DC source impedance. The input reflected-ripple current is measured
by a current probe oscilloscope with a simulated source Inductance
(L1).
Where
VHL is the output voltage of the maximum input voltage at full
load.
VLL is the output voltage of the minimum input voltage at full
load.
AT Series Test Setup
Output Voltage Adjustment (T-Option)
In order to trim the voltage up or down, the user needs to connect the
trim resistor either between the trim pin and -Vo for trim-up and
between trim pin and +Vo for trim-down. The output voltage trim range
is 10%. This is shown in the next two figures:
L1: 12uH
C1: None
Cin: 33µF ESR < 0.7ohm @100KHz
Input Reflected-Ripple Test Setup
+Vin
+Vo
Trim
Test Set-Up
The basic test set-up to measure efficiency, load regulation, line
regulation and other parameters is shown in the next figure. When
testing the converter under any transient conditions, the user should
ensure that the transient response of the source is sufficient to power
the equipment under test. Below is the calculation of :
R-Load
R trim-up
-Vin
-Vo
1- Efficiency
2- Load regulation
3- Line regulation
Trim-up Voltage Setup
The value of efficiency is defined AT:
V
O
× I
O
η =
×100%
VIN × IIN
Where
+Vo
+Vin
-Vin
VO is output voltage,
IO is output current,
VIN is input voltage,
IIN is input current.
R trim-down
R-Load
Trim
-Vo
The value of load regulation is defined AT:
FL −V
V
Load.reg =
NL ×100%
VNL
Where
Trim-down Voltage Setup
VFL is the output voltage at full load
VNL is the output voltage at 10% load
The value of line regulation is defined AT:
V
HL −V
Line.reg =
LL ×100%
VLL
January 17, 2018 A.01
Page 9 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
Where
1. The value of Rtrim-up is defined as:
R trim-up is the external resistor in Kohm.
VO, nom is the nominal output voltage.
VO is the desired output voltage.
R1, R2, R3, Rt and Vr are internal to the unit and are defined in
the table above Trim down Resistor Values
Where
R trim-up is the external resistor in Kohm.
VO, nom is the nominal output voltage.
VO is the desired output voltage.
For example, to trim-down the output voltage of 5.0V module
(AT22S5-3) by 10% to 4.5V, R trim-down is calculated as follows:
R1, R2, R3, Rt and Vr are internal to the unit and are defined in
the table below
VO,nom – Vo = 5.0 – 4.5 = 0.5V
R1 = 2.32 KΩ
R2 = 2.32 KΩ
Trim up and Trim down Resistor Values
R3 = 0 KΩ
Rt = 8.2 KΩ
Vr= 2.5 V
Model
Output
R1
R2
R3
Rt
Vr
Number Voltage(V) (KΩ)
AT22S3.3-7.5
AT45S3.3-7.5
AT22S5-6
(KΩ) (KΩ) (KΩ) (KΩ)
3.3
2.74
2.32
6.8
1.8
2.32
2.4
2.4
2.4
2.4
0.27
0
9.1
8.2
22
1.24
2.5
2.5
25
5.0
AT45S5-6
AT22S12-2.5
AT45S12-2.5
AT22S15-1.25
AT45S15-1.25
AT22D12-1.25
AT45D12-1.25
AT22D15-1
12.0
15.0
12V
15V
2.32
3.9
2.32
3.9
Noise Measurement and Output Ripple
The test set-up for noise and ripple measurements is shown in the
figure below. A coaxial cable was used to prevent impedance
mismatch reflections disturbing the noise readings at higher
frequencies. Measurements are taken with the output appropriately
loaded and all ripple/noise specifications are from 0Hz to 20MHz
Bandwidth.
8.06
6.8
2.7
22
2.5
25
8.06
2.7
AT45D15-1
For example, to trim-up the output voltage of the 5.0 Volts module
(AT22S5-3) by 10% to 5.5V, R trim-up is calculated as follows:
+Vin
-Vin
+Vo
-Vo
+
-
BNC
Vo – Vo, nom = 5.5 – 5.0 = 0.5V
R1 = 2.32 KΩ
R2 = 2.32 KΩ
R3 = 0 KΩ
Rt = 8.2 KΩ,
Vin
C2
R-Load
C1
To Scope
Vr= 2.5 V
Output Voltage Ripple and Noise Measurement Set-Up
Note: C1: None
C2: 0.1µF ceramic capacitor
2. The value of R trim-down defined as:
Where
Output Capacitance
This series of converters provides unconditional stability with or
without external capacitors. For good transient response, low ESR
output capacitors should be located close to the point of load.
Rtrim-down is the external resistor in Kohm.
VO, nom is the nominal output voltage.
VO is the desired output voltage.
R1, R2, are internal to the unit and are defined in the table below.
January 17, 2018 A.01
Page 10 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
SAFETY and EMC
Input Fusing and Safety Considerations
The AT series of converters do not have an internal fuse. However, to achieve maximum safety and system protection, always use an input line fuse.
DATEL recommended a time delay fuse of 6A for 24Vin models and 3A for 48Vin modules. The circuit in the figure below is recommended by a Transient
Voltage Suppressor diode across the input terminal to protect the unit against surge or spike voltage and input reverse voltage.
Input Protection Circuit
EMC Considerations
EMI Test standard: EN55022 Class A and B Conducted Emission
Test Condition: Input Voltage: Nominal, Output Load: Full Load
Connection circuit for conducted EMI testing
C2
C3
C1
MODEL
NC
4.7uF/50V 1812
4.7uF/50V 1812
4.7uF/50V 1812
4.7uF/50V 1812
4.7uF/50V 1812
4.7uF/50V 1812
2.2uF/100V 1812
2.2uF/100V 1812
2.2uF/100V 1812
2.2uF/100V 1812
2.2uF/100V 1812
2.2uF/100V 1812
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
1000pF/3KV 1808
AT22S3.3-7.5
AT22S5-6
AT22S12-2.5
AT22S15-2
AT22D12-1.25
AT22D15-1
NC
NC
NC
NC
NC
NC
AT45S3.3-7.5
AT45S5-6
AT45S12-2.5
AT45S15-2
AT45D12-1.25
AT45D15-1
NC
NC
NC
NC
NC
January 17, 2018 A.01
Page 11 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
January 17, 2018 A.01
Page 12 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
January 17, 2018 A.01
Page 13 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
EMC Considerations
EMI Test standard: EN55022 Class B Conducted Emission
Test Condition: Input Voltage: Nominal, Output Load: Full Load
C2
C3
C5
C6
1206
C7
1206
L1
L2
C1
MODEL
4.7uF/50V
1812
4.7uF/50V
1812
4.7uF/50V 1000pF/2000V 1000pF/2000V 1000pF/2000V 400µH Common 150µH Common
1812
AT22S3.3-7.5
1206
Choke
Choke
1000pF/2000
V 1206
1000pF/2000
V 1206
1000pF/2000
V 1206
4.7uF/50V
1812
4.7uF/50V
1812
4.7uF/50V
1812
1000pF/2000V 1000pF/2000V 400µH Common 150µH Common
AT22S5-6
AT22S12-2.5
AT22S15-2
1206 1206 Choke Choke
4.7uF/50V
1812
4.7uF/50V
1812
4.7uF/50V
1812
1000pF/2000V 1000pF/2000V 400µH Common 150µH Common
1206 1206 Choke Choke
4.7uF/50V
1812
4.7uF/50V
1812
4.7uF/50V
1812
1000pF/2000V 1000pF/2000V 400µH Common 150µH Common
1206 1206 Choke Choke
1000pF/2000
V 1206
1000pF/2000
V 1206
4.7uF/50V
1812
4.7uF/50V
1812
4.7uF/50V
1812
1000pF/2000V 1000pF/2000V 400µH Common 150µH Common
1206 1206 Choke Choke
AT22D12-1.25
AT22D15-1
4.7uF/50V
1812
4.7uF/50V
1812
4.7uF/50V
1812
1000pF/2000V 1000pF/2000V 400µH Common 400µH Common
1206
1206
Choke
Choke
January 17, 2018 A.01
Page 14 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
January 17, 2018 A.01
Page 15 of 16
AT SERIES (2” x 1” Package)
Up to 30 Watt DC-DC Converter
MECHANICAL DIMENSIONS Inches (mm)
Note: All dimensions are in inches (millimeters). Tolerance: x.xx 0.04 in. (0.5mm), x.xxx 0.010 in. (0.25 mm) unless otherwise noted
PIN CONNECTIONS
Pin Connections
DUAL OUTPUT
SINGLE OUTPUT
PIN
+ V Input
- V Input
+ V Output
Trim
- V Output
Remote On/Off
+ V Input
- V Input
+ V Output
- V Output
Common
1
2
3
4
5
6
Remote On/Off
PART NUMBER AND ORDERING INFORMATION
Family,
Nominal Input
Form Factor
Voltage
Number of
Outputs
Voltage Output
Current Output (A)
Package
AT
22
–
S
6
5
3.3 Volts – 7.5A
5 Volts - 6A
12 Volts – 2.5A
15 Volts – 2A
12 Volts - 1.25A
15 Volts - 1A
3.3 Volts
5 Volts
12 Volts
15 Volts
12 Volts
15 Volts
(9-36) 22 Volts
(18-75) 45 Volts
S - Single
D - Dual
For proper part ordering, enter option
suffixes in order listed in table above
January 17, 2018 A.01
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