PS10NG-G M905 Supertex, PS10NG-G M905 Datasheet

PS10NG-G M905

Manufacturer Part Number

PS10NG-G M905

Description

Supervisory Circuits 14L SOICN

Manufacturer

Supertex

Datasheet

1.PS10NG-G_M905.pdf (9 pages)

Specifications of PS10NG-G M905

Rohs

yes

Current page: 1 of 9
Download datasheet (609Kb)

Features

►

Applications

►

Typical Application Circuit

Sequencing of four supplies, ICs, or subsystems

Independently programmable delays between open

drain PWRGD ﬂags (5.0 to 200ms)

±10 to ±90V operation

Tracking in combination with Schottky diodes

Input supervisors including:

Low power consumption, 0.4mA supply current

Available in a space saving 14-Lead SOIC package

Power supply sequencing

-48V telecom and networking distributed systems

-24V cellular and ﬁxed wireless systems

-24V PBX systems

+48V storage systems

FPGA, microprocessor tracking

Industrial/embedded system timing/sequencing

High voltage MEMs driver’s supply sequencing

High voltage display driver’s supply sequencing

•

-48V or GND

GND or +48V

UV/OV lock out/enable

Power-on-Reset (POR)

9.76KΩ

487KΩ

6.81KΩ

Power Sequencing Controller

Notes:

●

1235 Bordeaux Drive, Sunnyvale, CA 94089

1. Under Voltage Shutdown (UV) set to 37V.

2. Over Voltage Shutdown (OV) to 57.8V.

VEE

RTB

VIN

RTC

PS10

RTD

Quad

General Description

Many of today’s high performance FPGA’s, microprocessors,

DSP and industrial/embedded subsystems require sequencing

of the input power. Historically this has been accomplished

by: i) discretely using comparators, references & RC circuits;

ii) using expensive programmable controllers; or iii) with low

voltage sequencers requiring resistor drop downs and several

high voltage optocoupler or level shift components.

The PS10 saves board space, improves accuracy, eliminates

optocouplers or level shifts and reduces overall component

count by combining four timers, programmable input UV/

OV supervisors, a programmable POR, and four 90V open

drain outputs. A high reliability, high voltage, junction isolated

process allows the PS10 to be connected directly across the

high voltage input rails.

The power-on-reset interval (POR) may be programmed by a

capacitor on C

PS10s may be daisy-chained together. If at any time the input

supply falls outside the UV/OV detector range, the PWRGD

outputs will immediately become IN-ACTIVE.

The PS10 is available in a space saving 14-Lead SOIC

package.

RAMP

10nF

PWRGD-D

PWRGD-C

PWRGD-A

PWRGD-B

●

Tel: 408-222-8888

RAMP

. To sequence additional systems, multiple

●

www.supertex.com

DC/DC

CONVERTER

DC/DC

CONVERTER

DC/DC

CONVERTER

DC/DC

CONVERTER

/EN

+12V

COM

+5V

COM

+3.3V

+2.5V

PS10

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PS10NG-G M905 Summary of contents

Page 1

... Under Voltage Shutdown (UV) set to 37V. 2. Over Voltage Shutdown (OV) to 57.8V. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 . To sequence additional systems, multiple RAMP /EN DC/DC 1 CONVERTER PWRGD-D 2 PWRGD-C 3 PWRGD-B /EN 4 PWRGD-A DC/DC CONVERTER /EN DC/DC CONVERTER /EN DC/DC CONVERTER ● Tel: 408-222-8888 ● www.supertex.com PS10 +12V COM +5V COM +3.3V COM +2.5V COM ...

Page 2

... C O ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 14-Lead SOIC (NG) (top view) Top Marking Y = Last Digit of Year Sealed PS10NG WW = Week Sealed YWW LLLLLLLL L = Lot Number C = Country of Origin Bottom Marking A = Assembler ID* = “Green” Packaging CCCCCCCCC AAA *May be part of top marking 14-Lead SOIC (NG) ...

Page 3

... RTB = 120kΩ 5.0* 8.0 ms RTD = 3.0kΩ 200* 250 ms RTB = 120kΩ 5.0* 8.0 ms RTD = 3.0kΩ PWRGD 1.0mA, 0.4 0.5 V PWRGD PWRGD-X = LOW V = 90V, <1.0 10 µA PWRGD PWRGD PWR GD- A PWR GD- B PWR GD- C PWR GD- D Programmable Timer ● Tel: 408-222-8888 ● www.supertex.com PS10 ...

Page 4

... (R2+R3)/(R1+R2+R3) UVL EEUV(off 1. R3/(R1+R2+R3) OVL EEOV(off) ) and (V ) relative to V EEUV(off) EEOV(off) = 1.22 = (65xR3)/500kΩ (R2+R3)/ 500kΩ (R2+R3)/(R1+R2+R3) UVH EEUV(on R3/(R1+R2+R3) OVL EEOV(on) ) and (V ) are under and over voltage EEUV(on) EEOV(on ● Tel: 408-222-8888 ● www.supertex.com PS10 are under and EE ...

Page 5

... For a time delay of 5ms R TX ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 5 - 1.17V, PWRGD-A be- INT x V )/I OSC (2040 OSC 0.585 x 106 x 0.2 = 117kΩ = 0.585 x 106 x 0.005 = 2.925kΩ ● Tel: 408-222-8888 ● www.supertex.com PS10 yields: TX ...

Page 6

... PS10 PWRGD-B PWRGD RAMP 10nF RTB RTC RTD VIN PWRGD-D PWRGD-C PWRGD-B PS10 PWRGD RAMP 10nF RTC RTD ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 6 V+ DC/DC Converter DC/DC 49.9kΩ Converter Opto-coupler EN V- ● Tel: 408-222-8888 ● www.supertex.com PS10 +3.3V COM +3.3V COM ...

Page 7

... V /16.5kΩ) IN UVON UVON ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 7 V+ DC/DC Converter Other power good outputs will have the same configuration as PWGRGD-A for Active High Enabled Converters. 2. Over voltage shut down set to 63.6V ● Tel: 408-222-8888 ● www.supertex.com PS10 +3.3V COM ...

Page 8

... This pin is the positive terminal of the power supply input to the circuit and can withstand 90V with 14 VIN respect to VEE. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 8 To function as an indicator, a pullup resistor must be connected from this pin to a voltage rail no more than 90V from VEE. ● Tel: 408-222-8888 ● www.supertex.com PS10 ...

Page 9

... Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship ...

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