ADM1066ACPZ-REEL7 Supervisor Programmable 12 Channel 40-LFCSP-VQ (6x6)

APPLICATIONS
Central office systems

Servers/routers 

Multivoltage system line cards

DSP/FPGA supply sequencing
In-circuit testing of margined supplies

DESCRIPTION
The ADM1066 Super Sequencer* is a configurable supervisory/sequencing device that offers a single-chip solution for supply
monitoring and sequencing in multiple- supply systems. In addition to these functions, the ADM1066 integrates a 12-bit ADC and
six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply
adjustment by altering either the feedback node or reference of a dc-to- de converter using the DAC outputs.
 

Supply margining can be performed with a minimum of external components. The margining loop can be used for in-circuit testing
of a board during production (for exarmple, to verify board func-tionality at -5% of nominal supplies), or it can be used dynamically
to accurately control the output voltage of a dc-to-dc converter.
 

Features
Complete supervisory and sequencing solution for up to10 supplies
10 supply fault detectors enable supervision of supplies to

<0.5% accuracy at all voltages at 25°C
<1.0% accuracy across all voltages and temperatures
5 selectable input atenuators alw supervision of supplies to 14.4V on VH6V on VP1 toVP4 (VPx)
5 dual-function inputs, VX1 to VX5 (VXx)
High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V General-purpose logic input
10 programmable driver outputs, PD01 to PD010 (PDOx)
Open-collector with external pull-up
Push/pull output, driven to VDDCAP orVPx
Open collector with weak pull-up to VDDCAP or VPx
Internally charge-pumped high drive for use with external N-FET (PD01 to PD06 only)
Sequencing engine (SE) implements state machine control of
PDO outputs
State changes conditional on input events
Enables complex control of boards
Power-up and power-down sequence control
Fault event handling
Interrupt generation on warnings
Watchdog function can be integrated in SE
Program software control of sequencing through SMBus
Complete voltage-margining solution for 6 voltage rails
6 voltage output 8-bit DACS (0.300V to 1.551 V) allow voltage
adjustment via dc-to-dc converter trim/feedback node
12-bit ADC for readback of all supervised voltages
2 auxiliary (single-ended) ADC inputs
Reference input (REFIN) has 2 input options
Driven directly from 2.048V (10.25%) REFOUT pin
More accurate external reference for improved ADC
performance
Device powered by the highest of VPx, VH for improved
redundancy
User EEPROM: 256 bytes
Industry-standard 2-wire bus interface (SMBus)
Guaranteed PDO low with VH, VPx= 1.2V
Available in 40-lead, 6 mm x 6 mm LFCSP and
48-lead, 7 mm x 7 mm TQFP packages