ADM1169 Super Sequencer and Monitor with Margining Control and Non-Volatile Fault Recording

The ADM1169 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 ADM1169 integrates a 12-bit ADC and four 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-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 eight programmable inputs for monitoring undervoltage faults, overvoltage faults, or out-ofwindow faults on up to eight supplies. In addition, there are eight programmable outputs that 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.

The logical core of the device is a sequencing engine (SE). 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.

A block of nonvolatile EEPROM is available that can be used to store user-defined information and may also be used to hold a number of fault records that are written by the sequencing engine defined by the user when a particular fault or sequence occurs.

The ADM1169 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.

Features and Benefits

Complete supervisory and sequencing solution for up to 8 supplies
16 event deep black box nonvolatile fault recording
8 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
4 selectable input attenuators allow supervision of supplies to: 14.4 V on VH; 6 V on VP1 to VP3 (VPx)
4 dual-function inputs, VX1 to VX4 (VXx): High impedance input to supply fault detector with thresholds between 0.573 V and 1.375 V; General-purpose logic input
8 programmable driver outputs, PDO1 to PDO8 (PDOx)
Sequencing engine (SE) implements state machine control of PDO outputs: conditional on input events; Power-up and power-down sequence control; Fault event handling; Interrupt on warnings; Watchdog can be integrated in SE; software control through SMBus
Complete voltage margining solution for 4 voltage rails

4 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 Reference input (REFIN) has 2 input options: Driven directly from 2.048 V (±0.25%) 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 = 1.2 V

Power Management

Data Sheets

Document	note
ADM1169: Super Sequencer with Margining Control and Nonvolatile Fault Recording Data Sheet (Rev. B)	PDF 899 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-721: ADM1068/ADM1069/ADM1168/ADM1169 Configuration Registers (Rev. B)	PDF 500 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
ADM1169ACPZ Production	40 ld LFCSP (6x6mm w/4.1mm pad)	OTH 490	-40 to 85C	6.69	6.49	Y
ADM1169ACPZ-RL7 Production	40 ld LFCSP (6x6mm w/4.1mm pad)	REEL 750	-40 to 85C	6.69	6.49	Y
ADM1169ASTZ Production	32 ld LQFP (7x7mm)	OTH 250	-40 to 85C	6.69	6.49	Y
ADM1169ASTZ-RL7 Production	32 ld LQFP (7x7mm)	REEL 500	-40 to 85C	0	6.49	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-ADM1169LQEBZ	Evaluation board for device allowing user to configure the board to match their own configuration. The kit includes an LQFP socket. Multiple boards can be cascaded (cable included), allowing evaluation of multi-device systems.	303.6	Y
SOCKET-ADM1069LFZ	Optional LFCSP Socket for ADM1069 and ADM1169. This can be used with the evaluation board if required.	-1	Y
USB-SDP-CABLEZ	USB to Serial I/O Interface. One is required and can support multiple eval kits.	89	Y