BMP-5 C&D Technologies., BMP-5 Datasheet - Page 5

• Manufacturer Part Number: BMP-5
• Description: 25-40w, Dual Output, Dc/dc Converters
• Manufacturer: C&D Technologies.

Output Power
BMP Model, dual-output DC/DC converters incorporate a design tradeoff be-
tween total available output power and input voltage range. The total available
power is a function of both the nominal input voltage and the "width" of the
input voltage range. For a given nominal input (24V or 48V), narrower ranges
(2:1 vs. 4:1) have more available power. For a given "width" of input range
(2:1 or 4:1), higher nominal inputs (48V vs. 24V) have more available power.
Each device, as indicated by its part-number suffix (Q12, Q48, D24 or D48)
has a total output power limitation of 25, 30, 35 or 40 Watts, respectively.
Observing these power limitations is the user's responsibility.
As indicated by its Part Number Structure, each ±5V, ±12V or ±15V BMP
device is capable of sourcing up to ±4, ±1.65 or ±1.3 Amps, respectively.
Users have the flexibility of loading either output up to these limits; however
you must be extremely careful not to exceed the total output power rating of
any given device. If, for example, a ±5V device with a 30W power rating
(BMP-5/4-Q48) is sourcing 4A from its +5V output (representing 20W of
40
35
30
25
20
15
10
5
0
–40
0
Figure 5a. Temperature Derating Without Heat Sink
20
Natural Convection Cooling
150 Linear Feet Per Minute
300 Linear Feet Per Minute
25
Model Number
BMP-5/4-Q12
BMP-5/4-Q48
BMP-5/4-D24
BMP-5/4-D48
BMP-12/1.65-Q12
BMP-12/1.65-Q48
BMP-12/1.65-D24
BMP-12/1.65-D48
BMP-15/1.3-Q12
BMP-15/1.3-Q48
BMP-15/1.3-D24
BMP-15/1.3-D48
30
35
Ambient Temperature (°C)
40
45
Temperature Derating and Electrical Performance Curves
50
55
Voltage
10-36V
18-75V
18-36V
36-75V
10-36V
18-75V
18-36V
36-75V
10-36V
18-75V
18-36V
36-75V
Range
www.murata-ps.com
60
65
70
Table 1. Output Currents Comprising "Full Load"
75
25 Watts
30 Watts
35 Watts
40 Watts
25 Watts
30 Watts
35 Watts
40 Watts
25 Watts
30 Watts
35 Watts
40 Watts
Output
Power
80
D48 Models (40 Watts)
85
90
±5V Currents
±2.5A (25W)
±3.5A (35W)
±3A (30W)
±4A (40W)
+Output power), that device can only supply an additional 10W (2 Amps)
from its –Output.
As a consequence of this "power-allocation" flexibility, the definition of "full
load," as the condition under which performance specifications are tested
and listed, is ambiguous. The following table lists the positive and negative
output currents that DATEL uses to define each device’s "full load."
Threaded Inserts and Heatsink Installation
CAUTION: Do not use the threaded inserts to bolt the converter down to a
PC board. That will place unnecessary force on the mounting pins. Instead,
the converter is held securely by only soldering the mounting pins.
When attaching the heat sink from above the converter, use a maximum
torque of 2 inch-pounds (0.23 N-m) on the 4-40 bolts to avoid damaging the
threaded inserts. Use a tiny amount of fastener adhesive or 4-40 lockwashers
to secure the bolts.
Definition of "Full Load" for Specification Purposes
–
–
–
–
–
–
–
–
40
35
30
25
20
15
10
5
0
–40
0
20
Figure 5b. Temperature Derating With Heat Sink
Natural Convection Cooling
150 Linear Feet Per Minute
300 Linear Feet Per Minute
25
Technical enquiries email: [e-mail], tel:
±1.04A (24.96W)
±1.67A (40.1W)
±12V Currents
±1.25A (30W)
±1.46A (35W)
30
–
–
–
–
–
–
–
–
35
25-40W, Dual Output, DC/DC Converters
Ambient Temperature (°C)
40
45
50
±833mA (24.99W)
±1.17A (35.1W)
±1.33A (39.9W)
±15V Currents
55
±1A (30W)
MDC_BMP25-40W.B02 Page 5 of 6
BMP Models
60
–
–
–
–
–
–
–
–
65
70
75
[phone]
80
85
90