PS10 SUTEX [Supertex, Inc], PS10 Datasheet - Page 7

• Manufacturer Part Number: PS10
• Description: Quad Power Sequencing Controller
• Manufacturer: SUTEX [Supertex, Inc]

The following waveforms demonstrate the sequencing of
the PWRGD flags:
PWRGD Timing (PS11)
Test conditions: V
R
PWRGD Timing (Minimum Delays)
Test conditions: V
R
TB
TC
= 118k, R
= 3.24k, R
TC
TD
= 59k, and R
= 3.24k, R
Relative to Negative Rail
IN
IN
Relative to Negative Rail
= 48V, C
= 48V, C
PULL-UP
TD
RAMP
RAMP
= 46.4k.
= 10nF,
= 47k.
= 10nF, R
TB
= 3.24k,
7
PWRGD Timing (Maximum Delays)
Test conditions: V
R
PS11 Power Down Sequence after UV
Test conditions: C
R
= 0.94 F, C
sumed brick turn-off threshold is 2.7V min TTL logic high.
See power down sequencing on Page 11.
TC
TD
= 118k, R
= 3.24k, R
PWRGD_D
TD
PULL-UP
= 118k, R
Relative to Negative Rail
RAMP
Relative to Negative Rail
IN
= 48V, C
= 47k, C
= 1.41 F, V
= 10nF, R
PULL-UP
PWRGD_B
RAMP
= 47k.
TB
UVOFF
= 10nF, R
= 3.24k, R
= 0.47 F, C
= 33.4V, the as-
TC
TB
= 3.24k,
= 118k,
PWRGD_C
A051204
OFF