Ericsson Internal
E
SECSUND
PRODUCT SPECIFICATION
5 (17)
Prepared (also subject responsible if other)
No.
2/1301-BMR 457 Uen
9
Technical Specification
BMR457 series Fully regulated AdvCahneckceed d Bus Converters
Approved
Date
Rev
Reference
SEC/D (Julia You)
EZHIXZH
2012-08-24
C
1/28701-FGCL101 1835 revC August 2012
© Ericsson AB
Input 36-75 V, Output up to 25 A / 300 W
Typical Characteristics
12 V, 22 A, 264 W
BMR 457 0004/001
Start-up
Shut-down
Start-up enabled by connecting VI at:
TP1 = +25°C, VI = 53 V,
IO = 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 VI at:
TP1 = +25°C, VI = 53 V,
IO = 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:
TP1 = +25°C, VI = 53 V,
IO = 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).
Time scale: (0.5 mS/div)
TP1 =+25°C, VI = 53 V. CO = 2.2 mF.
Input Voltage Transient Response
Output voltage response to input voltage
transient at: TP1 = +25°C, VI = 36-75 V,
IO = 11 A resistive load, CO = 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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