bcp-3.3-2.5 C&D Technologies., bcp-3.3-2.5 Datasheet - Page 3

• Manufacturer Part Number: bcp-3.3-2.5
• Description: 3.3v And 2.5v, Half-brick 50 Watt, Dc/dc Converters
• Manufacturer: C&D Technologies.

Performance/Functional Specifications
Typical @ T
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P O W E R E L E C T R O N I C S D I V I S I O N
Input Voltage Range:
Overvoltage Shutdown:
Start-Up Threshold:
Undervoltage Shutdown:
Input Current:
Input Reflected Ripple Current:
Input Filter Type
Reverse-Polarity Protection:
On/Off Control: (Pin 3) ➂ ➄
V
Minimum Loading per Specification
Ripple/Noise (20MHz BW) ➃
Line/Load Regulation
Efficiency
Trim Range ➁
Isolation Voltage:
Isolation Capacitance
Isolation resistance
Current Limit Inception:
Short Circuit Current
Temperature Coefficient
Overvoltage Protection:
OUT
D24 Models
D48 Models
D24 Models
D48 Models
D24 Models
D48 Models
D24 Models
D48 Models
Normal Operating Conditions
Standby Mode:
Source Impedance <0.1Ω
D24 Models
D48 Models
D24 & D48 Models
D24N & D48N Models
3.3V Output
2.5V Output
Input-to-Baseplate
Input-to-Baseplate
Output-to-Case
3.3V @ 98% V
2.5V @ 98% V
3.3V Output
2.5V Output
D24 Models
D48 Models
Off, OV, UV, Thermal Shutdown
22µF Low-ESR Capacitor
Accuracy
A
= +25°C under nominal line voltage, balanced "full-load" conditions, unless noted.
OUT
OUT
(2.5V @ no-load)
(3.3V @ no-load)
Output
Input
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
40-43 Volts (41.5V typical)
77-80 Volts (78.5V typical)
16.5-18 Volts (17.5V typical)
33.5-36 Volts (34.5V typical)
15-17.5 Volts (16.5V typical)
30.5-33.5 Volts (32V typical)
See Ordering Guide
3.06 Amps maximum
1.53 Amps maximum
10mA typical
88mArms, 250mAp-p maximum
Pi (0.47µF-4.7µH-3.3µF)
1 minute duration, 6A maximum
1 minute duration, 3A maximum
On = open or 13V - +V
Off = 0-0.8V, I
On = 0-0.8V, I
Off = open or 2.5 - +V
±2% maximum
±2% maximum
No load
See Ordering Guide
See Ordering Guide
See Ordering Guide and Efficiency Curves
±5% independent
1500Vdc minimum
1000Vdc minimum
1000Vdc minimum
560pF
100MΩ
17-22 Amps
17-22 Amps
Constant current 25A, indefinite
±0.02% per °C
Comparator
4.0 Volts
3.25 Volts
IN
IN
= 2mA max.
= 1mA max.
IN
IN
, I
, I
IN
IN
= 50µA max.
= 1mA max.
➀
Dynamic Load Response:
Start-Up Time:
Switching Frequency
MTBF
Operating Temperature (Ambient):
Case Temperature:
Storage Temperature
Dimensions
Case (Baseplate) Connection ➁
Case/Pin Material
Weight
Primary to Secondary Insulation Level Basic
➀ Balanced, full-load = 3.3 @ 7.5A and 2.5V @ 7.5A. Models are specified with an external 22µF,
➁ See Technical Notes for details.
➂ Devices may be ordered with negative logic (pin 3 open = off). See Part Number Structure
➃ Output noise may be further reduced with the installation of additional external output
capacitors. See Technical Notes.
➄ These signals must be referenced to the input return pin (–V
➅ Demonstrated MTBF available on request.
Input Voltage:
Input Reverse-Polarity Protection
Output Overvoltage Protection ➁
Output Current ➁
Storage Temperature
Lead Temperature (Soldering, 10 sec.)
3.3V (50-100% load step to 2% V
2.5V (50-100% load step to 2% V
V
On/Off to V
D24 Models
D48 Models
θ Case to Ambient, No heatsink
Without Derating
With Derating
Maximum Allowable
For Thermal Shutdown ➁
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied, nor recommended.
low-ESR, input capacitor and 10µF tantalum in parallel with 1µF ceramic output capacitors.
and Technical Notes for additional information.
IN
to V
Continuous:
Transient (100msec): D24 Models
D24 Models
D48 Models
3.3V Outputs
2.5V Outputs
50W, Dual Output, Mixed-Voltage DC/DC Converters
OUT
OUT
Absolute Maximum Ratings
D24 Models
D48 Models
D48 Models
Dynamic Characteristics
Environmental
OUT
OUT
Physical
)
)
300µsec maximum
300µsec maximum
50 msec maximum
25 msec maximum
300kHz (±50kHz)
Bellcore, ground fixed, controlled
TBD hours (case @ TBD °C)
TBD hours (case @ TBD °C)
TBD °C/Watt
–40 to +32°C (without heat sink)
To +100°C (See Derating Curves)
+100°C
+100°C minimum, +110°C maximum
–40 to +120°C
2.3" x 2.4" x 0.5" (58.4 x 61 x 12.7mm)
Pin 2
Diallyl phthalate, UL94V-0 rated, aluminum
baseplate; plated copper alloy pins
4.2 ounces (118 grams)
43 Volts
87 Volts
50 Volts
100 Volts
Input Current must be limited. 1 minute
duration. Fusing recommended.
6 Amps
3 Amps
4.0 Volts, comparator
3.25 Volts, comparator
Current limited. Devices can withstand
an indefinite output short circuit.
–40 to +120°C
+300°C
D C / D C C O N V E R T E R S
BCP Models
MDC_BCP50W_A01
IN
).
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