PS10 SUTEX [Supertex, Inc], PS10 Datasheet - Page 8

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

PS11 Power Down Sequence after OV
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.
PWRGD Output Configuration
The PS10 and PS11 open drain power good outputs can be connected directly to the Enable pins of the DC/DC converter.
The internal pull-up and clamp of the DC/DC converter sets the logic High Enable/Disable voltage.
TD
= 3.24k, R
GND
-48V
PWRGD_D
PULL-UP
Relative to Negative Rail
RAMP
9.76K
487K
6.81K
= 47k, C
= 1.41 F, V
Notes:
1. Under Voltage Shutdown (UV) set to 37V.
2. Over Voltage Shutdown (OV) to 57.8V.
3. Other power good outputs will have the same
configuration as PWGRGD-A for Active High Enabled
Converters.
= 10nF, R
PWRGD_B
V
OV
UV
EE
TB
RTB
OVOFF
= 3.24k, R
V
TB
IN
= 0.47 F, C
RTC
= 61.6V, the as-
PS10
TC
RTD
TC
= 3.24k,
TD
PWRGD_C
OFF
Ramp
PWRGD-D
PWRGD-C
PWRGD-B
PWRGD-A
10nF
8
V+
EN
V-
DC/DC
Converter
+3.3V
COM
A051204