E
SECSUND
Approved
Prepared (also subject responsible if other)
No.
Ericsson Internal
PRODUCT SPECIFICATION
Rev
Reference
5 (17)
BMR457 series
SEC/D (Julia You)
Fully
regulated Advanced
Bus
Converters
EZHIXZH
2012-08-24
Input 36-75 V, Output up to
25
A /
300
W
Checked
2/1301-BMR 457
Technical Specification
Uen
Date
9
1/28701-FGC
101 1835
revC
August
2012
© Ericsson AB
C
L
Typical Characteristics
12 V, 22 A, 264 W
Start-up
Shut-down
BMR 457 0004/001
Start-up enabled by connecting V
I
at:
T
P1
= +25°C, V
I
= 53 V,
I
O
= 22 A resistive load.
Top trace: output voltage (5 V/div).
Bottom trace: input voltage (50 V/div).
Time scale: (5 mS/div)
Shut-down enabled by disconnecting V
I
at:
T
P1
= +25°C, V
I
= 53 V,
I
O
= 22 A resistive load.
Top trace: output voltage (5 V/div).
Bottom trace: input voltage (50 V/div).
Time scale: (2 mS/div).
Output Ripple & Noise
Output Load Transient Response
Output voltage ripple at:
T
P1
= +25°C, V
I
= 53 V,
I
O
= 22 A resistive load.
Trace: output voltage (20 mV/div).
Time scale: (2 uS/div).
Output voltage response to load current step- Top trace: output voltage (0.5 V/div).
change (5.5 – 16.5 – 5.5 A) at:
Bottom trace: load current (5 A/div).
T
P1
=+25°C, V
I
= 53 V. C
O
= 2.2 mF.
Time scale: (0.5 mS/div)
Input Voltage Transient Response
Output voltage response to input voltage
transient at:
T
P1
= +25°C, V
I
= 36-75 V,
I
O
= 11 A resistive load, C
O
= 2.2 mF
Top trace: output voltage (2 V/div.).
Bottom trace: input voltage (20 V/div.).
Time scale: (0.5 ms/div.).
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