Powersolve Power Sink Option for SM3000 - Manual (Page 2)

SM3000 - P127- P130
Page 1 - 2 Datasheet - SM3000 Power Sink 2003, rev. Sep.2011
SM45-70D with Power Sink Op tion
fast dis charge of out put ca pac i tors
by the power sink cir cuit
trace: out put volt age
Volt age Pro gram ming Speed at NO LOAD
SM45-70D with out Power Sink Op tion
slow re sponse time dur ing volt age step down,
time needed to dis charge the out put ca pac i tors
trace: out put volt age
Volt age Pro gram ming Speed at NO LOAD
Power Sink Spec i fi ca tions
SM15-200D
option P127
SM30-100D
option P128
SM45-70D
option P129
SM70-45D
option P130
Sink Power Rating
max. peak power (elec tron i cally lim ited)
max. con tin u ous power (T
amb . = 25 °C)
max. con tin u ous power (T
amb
. = 50 °C)
300 W
30 W
15 W
Max. du ra tion Sink Peak Power
P
sink
= 300 W, T
amb
. = 25 °C
Duty Cy cle for use at Peak Power
P
sink
= 300 W, T
amb
. = 25 °C
P
sink
<= 300 W, t
on
<= 15 s
t
on
= time, power dis si pa tion is > 0 W
t
off
= time, power dis si pa tion is 0 W
P
av
= P
peak
* t
on
/ (t
off
+ t
on
)
max. t
on
= 60 s, fol low ing t
off
=1200 s (for cool ing down)
t
on
<=15 s / t
off
>= 150 s
av er age power <= 30 W
Max. Sink Cur rent
(V
o
>= 2 V and P <= 300 W) Lim ited at 70 A Lim ited at 45 A
Pro tec tion Elec tronic Power Limit (300 W) lim its the cur rent.
Sink cir cuit shuts down in case of ther mal over load
Re cov ery time / De vi a tion
Vo = 6 V, I
o
: +80 A → –20 A
re cov ery within 100 mV / de vi a tion:
Vo = 15 V, I
o
: +40 A → –10 A
re cov ery within 100 mV / de vi a tion:
Vo = 24 V, I
o
: +20 A → –6 A
re cov ery within 100 mV / de vi a tion:
Vo = 42 V, I
o
: +20 A → –3.5 A
re cov ery within 100 mV / de vi a tion:
Vo = 60 V, I
o
: +10 A → –2.5 A
re cov ery within 100 mV / de vi a tion:
(load cur rent switches from pos i tive to
neg a tive)
di/dt = – 1.5 A/µs
200 µs / 0.30 V
di/dt = – 1.0 A/µs
500 µs / 0.15 V
-
-
-
-
-
-
note: val ues
are typ i cal
di/dt = – 1.5 A/µs
300 µs / 0.60 V
di/dt = – 0.9 A/µs
350 µs / 0.30 V
di/dt = – 0.5 A/µs
500 µs / 0.30 V
-
-
-
-
note: val ues
are typ i cal
-
-
di/dt = – 0.9 A/µs
200 µs / 0.45 V
di/dt = – 0.6 A/µs
200 µs / 0.40 V
di/dt = – 0.6 A/µs
500 µs / 0.45 V
-
-
note: val ues
are typ i cal
-
-
di/dt = – 0.9 A/µs
200 µs / 0.75 V
di/dt = – 0.6 A/µs
200 µs / 0.45 V
di/dt = – 0.6 A/µs
480 µs / 0.45 V
di/dt = – 0.3 A/µs
1.0 ms / 0.50 V
note: val ues
are typ i cal
Pro gram ming Down Speed
Fall time at no load (90 - 10%)
(also see fig ures be low)
Fall time at no load with out Power Sink
(15 → 0 V)
6 ms
6 s
(30 → 0 V)
10 ms
8 s
(45 → 0 V)
6 ms
2 s
(70 → 0 V)
10 ms
5 s
Par al lel and Se ries op er a tion
Re fer to power sink man ual for
de tails and re stric tions.
Us ing mul ti ple units in par al lel op er a tion, only one unit can have a power sink .
Us ing mul ti ple units in se ries op er a tion, all units must have a power sink .
Notes: • The maximum sink current at higher voltages will not be the maximum specified current due to the power limit.
For example at 30 V the maximum sink current will only be 10 A (30 V x 10 A = 300 W = maximum power).
• A higher sink current than the maximum current will cause the output voltage to rise.