ADM1062 Super Sequencer® with Margining Control and Temperature Monitoring

Central office systems Servers/routers Multivoltage system line cards DSP/FPGA supply sequencing In-circuit testing of margined supplies

The ADM1062 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 ADM1062 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 the reference of a dc-to-dc 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 example, to verify board functionality at −5% of nominal supplies), or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter.

The device also provides up to 10 programmable inputs for monitoring undervoltage faults, overvoltage faults, or out-of-window faults on up to 10 supplies. In addition, 10 programmable outputs can be used as logic enables. Six of these programmable outputs can also provide up to a 12 V output for driving the gate of an N-FET that can be placed in the path of a supply.

Temperature measurement is possible with the ADM1062. The device contains one internal temperature sensor and a differential input for a remote thermal diode. Both are measured by the 12-bit ADC.

The logical core of the device is a sequencing engine. This state-machine-based construction provides up to 63 different states. This design enables very flexible sequencing of the outputs, based on the condition of the inputs.

The ADM1062 is controlled via configuration data that can be programmed into an EEPROM. The entire configuration can be programmed using an intuitive GUI-based software package provided by Analog Devices, Inc.

Applications

Features and Benefits

Complete supervisory and sequencing solution for up to 10 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 attenuators allow supervision of
- Supplies up to 14.4 V on VH
- Supplies up to 6 V on VP1 to VP4 (VPn)
5 dual-function inputs, VX1 to VX5 (VXn)
- High impedance input to supply fault
detector with thresholds between 0.573 V
and 1.375 V
- General-purpose logic input
10 programmable output drivers (PDO1 to PDO10)
- Open collector with external pull-up
- Push/pull output, driven to VDDCAP or
VPn
- Open collector with weak pull-up to
VDDCAP or VPn
- Internally charge-pumped high drive for
use with external N-FET (PDO1 to PDO6
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 (0.300 V to 1.551 V) allow voltage adjustment via dc-to-dc converter trim/feedback node
12-bit ADC for readback of all supervised voltages
Internal and external temperature sensors
Reference input (REFIN) has 2 input options
Driven directly from 2.048 V (±0.25%) REFOUT pin

Power Management

Data Sheets

Document	note
ADM1062: Super Sequencer with Margining Control and Temperature Monitoring Data Sheet (Rev. D)	PDF 759 kB

Application Notes

Document	note
AN-1009: Block Erasing, Reading and Writing to the ADM106x EEPROM (Rev. A)	PDF 63 kB
AN-1086: Using an ADM106x in a Hot Swap Application (Rev. 0)	PDF 59 kB
AN-0997: Ping-Pong Configuration Guide for ADM1062 to ADM1069 Devices (Rev. A)	PDF 172 kB
AN-1001: Checksum Calculations (Rev. A)	PDF 76 kB
AN-897: ADC Readback Code (Rev. A)	PDF 65 kB
AN-0973: Erasing and Programming the Sequencing Engine EEPROM (Rev. A)	PDF 61 kB
AN-0975: Automatic Generation of State Diagrams for the ADM1062 to ADM1069 Using Graphviz (Rev. A)	PDF 209 kB
AN-722: Watchdog Detection Using the ADM106x (Rev. 0)	PDF 179 kB
AN-698: Configuration Registers of ADM1062/ADM1063/ADM1064/ADM1065/ADM1066/ADM1067/ADM1166 (Rev. C)	PDF 561 kB
AN-782: Monitoring High Voltages with the ADM1062-ADM1069 Super Sequencers™ (Rev. 0)	PDF 61 kB
AN-781: Monitoring Additional Supplies with the ADM1062-ADM1069 Super Sequencers™ (Rev. 0)	PDF 96 kB
AN-780: Monitoring Negative Voltages with the ADM1062 to ADM1069 Super Sequencers (Rev. A)	PDF 98 kB
AN-723: Interrupt Generation Using the ADM106x (Rev. 0)	PDF 262 kB

User Guides

Document	note
UG-404: USB-SDP-CABLEZ Serial Interface Board	PDF 536 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADM1062ACPZ Production	40 ld LFCSP (6x6mm w/4.1mm pad)	OTH 490	-40 to 85C	9.92	9.11	Y
ADM1062ACPZ-REEL7 Production	40 ld LFCSP (6x6mm w/4.1mm pad)	REEL 750	-40 to 85C	0	9.11	Y
ADM1062ASUZ Production	48 ld TQFP (7x7mm)	OTH 250	-40 to 85C	9.11	7.59	Y
ADM1062ASUZ-REEL7 Production	48 ld TQFP (7x7mm)	REEL 500	-40 to 85C	0	7.59	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-ADM1062TQEBZ	Evaluation board for device allowing user to configure the board to match their own configuration. The kit includes a TQFP socket. Multiple boards can be cascaded (cable included), allowing evaluation of multi-device systems.	303.6	Y
SOCKET-ADM106XLFZ	Optional LFCSP Socket for ADM1062-67 and ADM1166. This can be used with the evaluation board if required.	120	Y
SOCKET-ADM106XTQZ	Optional TQFP Socket for ADM1062-67 and ADM1166. This can be used with the evaluation board if required.	95	Y
USB-SDP-CABLEZ	USB to Serial I/O Interface. One is required and can support multiple eval kits.	89	Y