Ericsson Internal
E
ETORHOL, EKAMAGN, EJANARV
PRODUCT SPEC
6 (9)
Prepared (also subject responsible if other)
No.
2/1301-BMR 451 0002 Uen
9
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 401 R4A May 2015
BMR 451 Digital PoL Regulators
Input 4.5-14 V, Output up to 40 A / 132 W
SEC/D (Julia You)
ETORHOL
2010-03-02
E
© Ericsson AB
3.3 V, 40 A/132 W Electrical Specification
BMR 451 0002/020
TP1 = -40 to +85ºC, VI = 4.5 to 14 V. Configuration: CDA 102 900/020, RSET = 1.21 kΩ.
Typical values given at: TP1 = +25°C, VI = 12 V, max IO, unless otherwise specified under Conditions.
Additional CI = 470 µF. See Operating Information section for selection of capacitor types.
Sense pins are connected to the output pins.
Characteristics
Conditions
min
typ
max
Unit
V
VI
Input voltage range
4.5
14
VIoff
VIon
PO
Turn-off input voltage
Turn-on input voltage
Output power
Decreasing input voltage
Increasing input voltage
4.0
4.4
V
V
132
W
50 % of max IO
max IO
94.7
94.1
8.2
2
η
Efficiency
%
Pd
Pli
Power dissipation
Input idling power
W
W
IO = 0.01 A
Turned off with CTRL, monitoring
enabled, see Note 3
145
mW
PRC
Input standby power
Low power mode, monitoring
disabled, see Note 3
50
6
mW
A
IS
Static input current
Output voltage initial setting and
accuracy
VOi
3.285
3.250
3.300
3.315
3.350
V
Output voltage tolerance band
Idling voltage
0.05 - 100 % of max IO
IO = 0.01 A
V
V
3.300
VO
Line regulation
4
3
mV
mV
Load regulation
0.05 - 100 % of max IO
Load step 25-75-25 % of max IO,
di/dt = 2.5 A/µs with default
configuration and CO = 4 mF.
See Note 1
Vtr1
Load transient voltage deviation
Load transient recovery time
-100/+180
100
mV
ttr1
µs
CO
Recommended external capacitance See Note 1
680
100 000
µF
Ramp-up time
tr
10
37
ms
ms
(from 10−90 % of VOi)
0.05 - 100 % of max IO
Start-up time
(from VI connection to 90 % of VOi)
ts
200
25
µs
ms
ms
V
O shut-down fall time.
tf
(From VI off to 10 % of VO)
IO = 0.4 A
IO = 0.4 A
CTRL start-up time
20
tCTRL
10
25
ms
ms
A
CTRL shut-down fall time
(From CTRL off to 10 % of VO)
IO
Output current
0.01
41
40
Ilim
Isc
Current limit threshold
Short circuit current
Output ripple & noise
48
50
40
A
A
VOac
See Note 2
mVp-p
Note 1: See Operating Information section for External Decoupling Capacitors.
Note 2: See Operating Information section for Output Ripple and Noise.
Note 3: Configurable via PMBus, please contact your local Ericsson Power Modules representative for appropriate SW tools to down-load new configurations.
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