ADM1069 Analog Devices, ADM1069 Datasheet - Page 3

• Manufacturer Part Number: ADM1069
• Description: Compact Multi- Voltage Sequencer and Supervisor with Margining Control
• Manufacturer: Analog Devices

Specifications of ADM1069

• # Supplies Monitored: 8
• Volt Monitoring Accuracy: 1%
• # Output Drivers: 8
• Fet Drive/enable Output: Both
• Voltage Readback: 12-bit ADC
• Supply Adj/margining: 12-bit ADC+4 DACs
• Package: 32 ld LQFP,40 ld LFCSP

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-of-
window 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.
DETAILED BLOCK DIAGRAM
VDDCAP
AGND
VX1
VX2
VX3
VX4
VP1
VP2
VP3
VH
ATTENUATOR
ATTENUATOR
ARBITRATOR
SELECTABLE
SELECTABLE
VDD
ADM1069
GND
REFIN
CHARGE PUMP
REG 5.25V
Figure 2. Detailed Block Diagram
CONDITIONING
CONDITIONING
GPI SIGNAL
GPI SIGNAL
VCCP
SAR ADC
Rev. C | Page 3 of 32
REFOUT
12-BIT
SFD
SFD
SFD
SFD
VREF
DAC1
V
DAC
OUT
REFGND
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.
The ADM1069 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.
DAC2
SEQUENCING
ENGINE
SDA SCL A1
DAC3
CONTROLLER
INTERFACE
DEVICE
SMBus
DAC4
V
DAC
OUT
OUTPUT DRIVER
OUTPUT DRIVER
OUTPUT DRIVER
OUTPUT DRIVER
CONFIGURABLE
CONFIGURABLE
CONFIGURABLE
CONFIGURABLE
A0
(HV)
(HV)
(LV)
(LV)
EEPROM
OSC
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
PDOGND
ADM1069