PS10NG-G-M905 Supertex, PS10NG-G-M905 Datasheet - Page 8

• Manufacturer Part Number: PS10NG-G-M905
• Description: Quad Power Sequencing Controller
• Manufacturer: Supertex

Pin Description
Pin
10
11
12
13
14
1
2
3
4
5
6
7
8
9
PWRGD-D
PWRGD-C
PWRGD-B
PWRGD-A
Function
RAMP
VEE
VIN
OV
NC
NC
UV
TC
TD
TB
Description
This open drain Power Good Output Pin is held inactive on initial power application
and goes active a programmed time delay after PWRGD-C goes active.
This open drain Power Good Output Pin is held inactive on initial power application
and goes active a programmed time delay after PWRGD-B goes active.
This open drain Power Good Output Pin is held inactive on initial power application
and goes active a programmed time delay after PWRGD-A goes active.
This open drain Power Good Output Pin is held inactive on initial power application
and goes active one POR delay after the UV pin goes above its High threshold
(provided VIN stays within the UV/OV window during this period).
This Over Voltage (OV) sense pin, when raised above its high threshold will immediately cause the
Power Good Outputs to be pulled low. These outputs will remain low until the voltage on this pin falls
below the low threshold limit, initiating a new start-up cycle.
This Under Voltage (UV) sense pin, when lowered below its low threshold will immediately cause the
Power Good Outputs to be pulled low. These outputs will remain low until the voltage on this pin rises
above the low threshold limit, initiating a new start-up cycle.
This pin is the negative terminal of the power supply input to the circuit.
No Connect. This pin can be grounded or left floating.
This pin provides a current output so that a timing ramp is generated when a capacitor is connected.
This timing Ramp is used to program POR and the time from satisfaction of the UV/OV supervisors
to PWRGD-A.
The resistor connected from this pin to VEE pin sets the time delay from PWRGD-A going active to
PWRGD-B going active.
The resistor connected from this pin to VEE pin sets the time delay from PWRGD-B going active to
PWRGD-C going active.
The resistor connected from this pin to VEE pin sets the time delay from PWRGD-C going active to
PWRGD-D going active.
This pin is the positive terminal of the power supply input to the circuit and can withstand 90V with
respect to VEE.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
8
●
Tel: [phone]
●
www.supertex.com
To function as
an indicator, a
pullup resistor
must be
connected from
this pin to a
voltage rail no
more than 90V
from VEE.
PS10