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參數(shù)資料
| 型號： | BWR-5/3-3.3/4.25-D48AL2 |
| 廠商： | CD TECHNOLOGIES INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 228K |
| 代理商： | BWR-5/3-3.3/4.25-D48AL2 |
BWR Models
3 0 W , D U A L O U T P U T , M I X E D - V O L T A G E D C / D C C O N V E R T E R S
Performance/Functional Specications
Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted.
Input
Input Voltage Range:
D12A Models
10-18 Volts (12V nominal)
D24A Models
18-36 Volts (24V nominal)
D48A Models
36-75 Volts (48V nominal)
Overvoltage Shutdown:
D12A Models
18.5-21 Volts (20V nominal)
D24A Models
37-40 Volts (38V typical)
D48A Models
77-81 Volts (79V typical)
Start-Up Threshold:
D12A Models
9.4-10 Volts (9.6V typical)
D24A Models
16.5-18 Volts (17V typical)
D48A Models
34-36 Volts (35V typical)
Undervoltage Shutdown:
D12A Models
7-8.5 Volts (8V typical)
D24A Models
16-17.5 Volts (16.5V typical)
D48A Models
32.5-34.5 Volts (33.5V typical)
Input Current:
Normal Operating Conditions
See Ordering Guide
Standby Mode:
Off, OV, UV, Thermal Shutdown
10mA typical
Input Reected Ripple Current:
Source Impedance
<0.1
, no external input ltering
D12A Models
TBD
D24A/D48A Models
TBD
Internal Input Filter Type
Pi (0.022F - 4.7H - 2.46F)
Reverse-Polarity Protection:
D12A Models
1 minute duration, 6A maximum
D24A Models
1 minute duration, 4A maximum
D48A Models
1 minute duration, 2A maximum
On/Off Control (Pins 3 & 4):
D12A, D24A & D48A Models
On = open or 13V to +VIN,
IIN = 1.6mA @ 13V
Off = 0-0.8V, IIN = 2mA @ 0V
"N" Sufx Models
On = 0-1.2V, IIN = 2mA @ 0V
Off = open.
Output
VOUT Accuracy
5V Output
±1.5% maximum
3.3V Output
±1.5% maximum
Minimum Loading Per Specication
10% of IOUT maximum
Minimum Loading For Stability
No load
Ripple/Noise (20MHz BW)
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efciency
See Ordering Guide
Trim Range
±5%
Isolation Voltage:
Input-to-Output
1500Vdc minimum
Isolation Resistance
100M
Isolation Capacitance
470pF
Current Limit Inception:
5V @ 98.5% VOUT
3.8-5.1 Amps
3.3V @ 98.5% VOUT
5.4-6.8 Amps
Short Circuit Current:
5V Output
3.0 Amps average current
3.3V Output
3.0 Amps average current
Output (continued)
Overvoltage Protection:
Magnetic feedback, transorb
5V Output
6.0 Volts
3.3V Output
4.1 Volts
Maximum Capacitive Loading
D12A Models 3.3V
1000F
5V
680F
D24A, D48A Models 3.3V
1000F
5V
680F
Temperature Coefcient
±0.02% per °C
Dynamic Characteristics
Dynamic Load Response:
5V (50-100% load step to 1% VOUT)
200sec maximum
3.3V (50-100% load step to 1% VOUT)
200sec maximum
Start-Up Time:
VIN to VOUT
10ms
On/Off to VOUT
TBD
Switching Frequency
355kHz (±35kHz)
Environmental
MTBF
Bellcore, ground xed, full power
25°C ambient
D12A Models
873.9 thousand hours
D24A Models
1.32 million hours
D48A Models
1.23 million hours
Operating Temperature (Ambient):
Without Derating:
D12A Models
–40 to +60°C
D24A & D48A Models
–40 to +65°C
With Derating
To +100°C (See Derating Curves)
Case Temperature:
Maximum Operational
+100°C
For Thermal Shutdown
+100°C minimum, +110°C maximum
Storage Temperature
–40 to +120°C
Physical
Dimensions
2" x 2" x 0.5" (50.8 x 50.8 x 12.7mm)
Case Material
Diallyl phthalate, UL94V-0 rated
Pin Material
Brass, solder coated
Weight:
2.7 ounces (76.5 grams)
Primary to Secondary Insulation Level Operational
All models are specied with external 0.47F ceramic output capacitors.
See Technical Notes/Graphs for details.
Applying a voltage to On/Off Control (pins 3 & 4) when no input power is applied to the
converter can cause permanent damage.
Output noise may be further reduced with the installation of additional external output
capacitors. See Technical Notes.
On/Off control is designed to be driven with open collector or by appropriate voltage
levels. Voltages must be referenced to the –Input (pin 2).
Demonstrated MTBF available on request.
For conditions with less than minimum loading, outputs remain stable. However, regulation
performance will degrade.
Maximum applied voltage to On/Off pin (N sufx) less than 19.0V.
3
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