Ericsson Internal
E
ETORHOL, EKAMAGN, EJANARV
PRODUCT SPEC
3 (9)
Prepared (also subject responsible if other)
No.
2/1301-BMR 451 0002 Uen
6
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
1.0 V, 40 A/40 W Electrical Specification
BMR 451 0002/020
TP1 = -40 to +85ºC, VI = 4.5 to 14 V. Configuration: CDA 102 900/020, RSET = 19.6 kΩ.
Typical values given at: TP1 = +25°C, VI = 12.0 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
40
W
50 % of max IO
max IO
89.1
86.5
6.2
η
Efficiency
%
Pd
Pli
Power dissipation
Input idling power
W
W
IO = 0.01 A
0.9
Turned off with CTRL, monitoring
enabled, see Note 3
145
mW
PRC
Input standby power
Low power mode, monitoring
disabled, see Note 3
50
3.9
mW
A
IS
Static input current
Output voltage initial setting and
accuracy
VOi
0.990
0.985
1.000
1.010
1.015
V
Output voltage tolerance band
Idling voltage
0.05 - 100 % of max IO
IO = 0.01 A
V
1.000
V
VO
Line regulation
4
3
mV
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 = 10 mF.
See Note 1
Vtr1
ttr1
Load transient voltage deviation
-35/+40
Load transient recovery time
200
µs
CO
tr
Recommended external capacitance See Note 1
680
100 000
µF
Ramp-up time
10
37
ms
(from 10−90 % of VOi)
0.05 - 100 % of max IO
Start-up time
(from VI connection to 90 % of VOi)
ts
tf
ms
1
50
20
7
ms
ms
ms
ms
V
O shut-down fall time
(from VI off to 10 % of VO)
IO = 2 A
IO = 2 A
CTRL start-up time
tCTRL
CTRL shut-down fall time
(From CTRL off to 10 % of VO)
17
ms
IO
Output current
0.01
41
40
A
A
Ilim
Isc
Current limit threshold
Short circuit current
Output ripple & noise
48
50
20
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.
ERICSSON [ ERICSSON ]
