ADM1060ARUZ Digital Sequencers by Analog Devices

Status: Production
Series: ADM1060
RoHS: Compliant
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The ADM1060 is a programmable supervisory/sequencing device that offers a single chip solution for multiple power supply fault detection and sequencing in communications systems.In central offices, servers, and other infrastructure systems, a common backplane dc supply is reduced to multiple board supplies using dc-to-dc converters. These multiple supplies are used to power different sections of the board, such as 3.3 V logic circuits, 5 V logic circuits, DSP core, and DSP I/O circuits. There is usually a requirement that certain sections power up before others; for example, a DSP core may need to power up before the DSP I/O, or vice versa, to avoid damage, miscommunication, or latch-up. The ADM1060 facilitates this, providing supply fault detection and sequencing/combinatorial logic for up to seven independent supplies. The seven supply fault detectors consist of one high voltage detector (up to +14.4 V), two bipolar voltage detectors (up to +6 V or down to −6 V), and four positive low voltage detectors (up to +6 V). All of the detectors can be programmed to detect undervoltage, overvoltage, or out-ofwindow (undervoltage or overvoltage) conditions. The inputs to these supply fault detectors are via the VH (high voltage) pin, VBn (positive or negative) pins, and VPn (positive only) pins. Either the VH supply or one of the VPn supplies is used to power the ADM1060 (whichever is highest). This ensures that in the event of a supply failure, the ADM1060 is kept alive for as long as possible, thus enabling a reliable fault flag to be asserted and the system to be powered down in an ordered fashion.Other inputs to the ADM1060 include a watchdog detector (WDI) and four general-purpose inputs (GPIn). The watchdog detector can be used to monitor a processor clock. If the clock does not toggle (transition from low to high or from high to low) within a programmable timeout period (up to 18 sec.), a fail flag will assert. The four general-purpose inputs can be configured as logic buffers or to detect positive/negative edges and to generate a logic pulse or level from those edges. Thus, the user can input control signals from other parts of the system (e.g., RESET or POWER_GOOD) to gate the sequencing of the supplies supervised by the ADM1060.The ADM1060 features nine programmable driver outputs (PDOs). All nine outputs can be configured to be logic outputs, which can provide multiple functions for the end user such as RESET generation, POWER_GOOD status, enabling of LDOs, and watchdog timeout assertion. PDOs 1 to 4 have the added feature of being able to provide an internally charge-pumped high voltage for use as the gate drive of an external N-channel FET that could be placed in the path of one of the supplies being supervised.

Prices starting from US$10.43


Distributor Starting From Stock
Logo for Farnell Farnell US$14.12
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Logo for Newark Electronics Newark Electronics US$10.43
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Logo for element14 element14 US$13.39
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Logo for Richardson RFPD Richardson RFPD US$11.59
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Logo for Analog Devices Analog Devices US$12.98
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Features

Faults detected on 7 independent supplies
1 High Voltage supply (up to 14.4V)
Programmable logic block—combinatorial and sequencing logic control of all inputs and outputs
9 programmable output drivers:
- Open collector (external resistor required)
- Open collector with internal pull-up to VDD
- Fast internal pull-up to VDD
- Open collector with internal pull-up to VPn
- Fast internal pull-up to VPn
- Internally charge-pumped high drive (for use with external N-channel FETs—PDOs 1 to 4 only)
4 Positive Voltage Only Supplies (up to 6V)
2 Positive/Negative Voltage supplies (up to +6V OR down to -6V)
Watchdog Detector Input- Timeout delay programmable from 200ms to 12.8sec
4 General Purpose Logic Inputs
4 general-purpose logic inputs
EEPROM—256 bytes of user EEPROM
Industry-standard 2-wire bus interface (SMBus)
Guaranteed PDO low with VPn, VH = 1 V

Alternative Descriptions

VOLTAGE DETECTOR, TSSOP-28, 85DEG C | Farnell
Voltage Detector, Tssop-28, 85Deg C | Newark Electronics
POWER MANAGEMENT IC | Richardson RFPD
Communications SupvSeq Circuit | Analog Devices


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADM1060ARUZ?

Additional datasheets, footprints and schematics for ADM1060ARUZ are listed on our Part Details page. You can also find images and similar parts to ADM1060ARUZ on this page.

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What category does ADM1060ARUZ fall under?

The ADM1060ARUZ is listed under Digital Sequencers.

Can I view similar or alternative parts?

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Is the ADM1060ARUZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for ADM1060ARUZ have stock available?

Authorised distributors including Farnell, Newark Electronics, element14, Richardson RFPD and Analog Devices have stock available or on a lead time for ADM1060ARUZ.

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