EVALADM1065TQEB Analog Devices Inc, EVALADM1065TQEB Datasheet

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EVALADM1065TQEB

Manufacturer Part Number
EVALADM1065TQEB
Description
Manufacturer
Analog Devices Inc
Datasheet
1.EVALADM1065TQEB.pdf (28 pages)

Specifications of EVALADM1065TQEB

Lead Free Status / Rohs Status
Not Compliant
FEATURES
Complete supervisory and sequencing solution for up to
10 supply fault detectors enable supervision of supplies to
5 selectable input attenuators allow supervision of supplies to
5 dual-function inputs, VX1 to VX5 (VXx)
10 programmable driver outputs, PDO1 to PDO10 (PDOx)
Sequencing engine (SE) implements state machine control of
Device powered by the highest of VPx, VH for improved
User EEPROM: 256 bytes
Industry-standard 2-wire bus interface (SMBus)
Guaranteed PDO low with VH, VPx = 1.2 V
Available in 40-lead, 6 mm × 6 mm LFCSP and
APPLICATIONS
Central office systems
Servers/routers
Multivoltage system line cards
DSP/FPGA supply sequencing
In-circuit testing of margined supplies
For more information about the ADM1065 register map,
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
10 supplies
<1.0% accuracy across all voltages and temperatures
14.4 V on VH
6 V on VP1 to VP4 (VPx)
High impedance input to supply fault detector with
General-purpose logic input
Open-collector with external pull-up
Push/pull output driven to VDDCAP or VPx
Open collector with weak pull-up to VDDCAP or VPx
Internally charge-pumped high drive for use with external
PDO outputs
redundancy
48-lead, 7 mm × 7 mm TQFP packages
refer to the AN-698 Application Note at www.analog.com.
<0.5% accuracy at all voltages at 25°C
thresholds between 0.573 V and 1.375 V
N-FET (PDO1 to PDO6 only)
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
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The ADM1065 Super Sequencer® is a configurable supervisory/
sequencing device that offers a single-chip solution for supply
monitoring and sequencing in multiple-supply systems.
The device also provides up to 10 programmable inputs for moni-
toring 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 each 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. 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 ADM1065 is controlled via configuration data that can be
programmed into an EEPROM. The whole configuration can
be programmed using an intuitive GUI-based software package
provided by Analog Devices, Inc.
VDDCAP
Super Sequencer and Monitor
AGND
VX1
VX2
VX3
VX4
VX5
VP1
VP2
VP3
VP4
VH
ARBITRATOR
PROGRAMMABLE
(LOGIC INPUTS
FUNCTIONAL BLOCK DIAGRAM
GENERATORS
ADM1065
FUNCTION
VDD
INPUTS
RESET
DUAL-
(SFDs)
SFDs)
OR
©2004–2008 Analog Devices, Inc. All rights reserved.
VCCP
SEQUENCING
REFOUT REFGND
Figure 1.
ENGINE
GND
VREF
(HV CAPABLE OF
CONFIGURABLE
CONFIGURABLE
LOGIC SIGNALS)
SDA SCL A1
DRIVING GATES
(LV CAPABLE
OF DRIVING
OF N-FET)
DRIVERS
DRIVERS
OUTPUT
OUTPUT
ADM1065
INTERFACE
SMBus
www.analog.com
EEPROM
A0
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
PDO9
PDO10
PDOGND

EVALADM1065TQEB Summary of contents

Page 1

FEATURES Complete supervisory and sequencing solution for 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 ...

Page 2

ADM1065 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Detailed Block Diagram .................................................................. 3 Specifications..................................................................................... 4 Absolute Maximum Ratings............................................................ 6 Thermal Resistance ...................................................................... 6 ESD Caution.................................................................................. 6 ...

Page 3

DETAILED BLOCK DIAGRAM VX1 VX2 VX3 VX4 VX5 SELECTABLE VP1 ATTENUATOR VP2 VP3 VP4 SELECTABLE VH ATTENUATOR AGND VDDCAP ARBITRATOR REFOUT REFGND SDA SCL A1 VREF INTERFACE ADM1065 CONTROLLER GPI SIGNAL CONDITIONING SFD GPI SIGNAL CONDITIONING SEQUENCING ENGINE SFD SFD ...

Page 4

ADM1065 SPECIFICATIONS 3 14 VPx = 3 6.0 V Table 1. Parameter POWER SUPPLY ARBITRATION VH, VPx VPx VH VDDCAP C VDDCAP POWER SUPPLY Supply Current VPx ...

Page 5

Parameter PROGRAMMABLE DRIVER OUTPUTS High Voltage (Charge Pump) Mode (PDO1 to PDO6) Output Impedance OUTAVG Standard (Digital Output) Mode (PDO1 to PDO10 SINK R PULL- (VPx) ...

Page 6

ADM1065 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Voltage on VH Pin Voltage on VPx Pins Voltage on VXx Pins Voltage on A0, A1 Pins Voltage on REFOUT Pin Voltage on VDDCAP, VCCP Pins Voltage on PDOx Pins Voltage on SDA, ...

Page 7

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS VX1 1 PIN 1 VX2 INDICATOR 2 VX3 3 VX4 4 ADM1065 VX5 5 TOP VIEW VP1 6 (Not to Scale) VP2 7 VP3 8 VP4 9 ...

Page 8

ADM1065 TYPICAL PERFORMANCE CHARACTERISTICS (V) VP1 Figure 5. V vs. V VDDCAP (V) VH Figure ...

Page 9

I (µA) LOAD Figure 11. Charge-Pumped V (FET Drive Mode) vs. I PDO1 5.0 4.5 4.0 3.5 3.0 2.5 VP1 = 3V 2.0 1.5 1.0 0.5 0 ...

Page 10

ADM1065 POWERING THE ADM1065 The ADM1065 is powered from the highest voltage input on either the positive-only supply inputs (VPx) or the high voltage supply input (VH). This technique offers improved redundancy because the device is not dependent on any ...

Page 11

INPUTS SUPPLY SUPERVISION The ADM1065 has 10 programmable inputs. Five of these are dedicated supply fault detectors (SFDs). These dedicated inputs are called VH and VPx (VP1 to VP4) by default. The other five inputs are labeled VXx (VX1 to ...

Page 12

ADM1065 The hysteresis value is given × N /255 HYST R THRESH where the desired hysteresis voltage. HYST N is the decimal value of the 5-bit hysteresis code. THRESH Note that N has a ...

Page 13

OUTPUTS SUPPLY SEQUENCING THROUGH CONFIGURABLE OUTPUT DRIVERS Supply sequencing is achieved with the ADM1065 using the programmable driver outputs (PDOs) on the device as control signals for supplies. The output drivers can be used as logic enables or as FET ...

Page 14

ADM1065 SEQUENCING ENGINE OVERVIEW The ADM1065 sequencing engine (SE) provides the user with powerful and flexible control of sequencing. The SE implements a state machine control of the PDO outputs with state changes conditional on input events. SE programs can ...

Page 15

SEQUENCING ENGINE APPLICATION EXAMPLE The application in this section demonstrates the operation of the SE. Figure 22 shows how the simple building block of a single SE state can be used to build a power-up sequence for a three-supply system. ...

Page 16

ADM1065 Monitoring Fault Detector The monitoring fault detector block is used to detect a failure on an input. The logical function implementing this is a wide OR gate that can detect when an input deviates from its expected condition. The ...

Page 17

APPLICATIONS DIAGRAM 12V ADM1065 5V OUT VP1 3V OUT VP2 3.3V OUT VP3 2.5V OUT VP4 1.8V OUT VX1 1.2V OUT VX2 0.9V OUT VX3 POWRON VX4 RESET VX5 VCCP VDDCAP 10µF 10µF IN ...

Page 18

ADM1065 COMMUNICATING WITH THE ADM1065 CONFIGURATION DOWNLOAD AT POWER-UP The configuration of the ADM1065 (undervoltage/overvoltage thresholds, glitch filter timeouts, PDO configurations, and so on) is dictated by the contents of the RAM. The RAM comprises digital latches that are local ...

Page 19

POWER-UP (V > 2.5V) CC EEPROM UPDATING THE SEQUENCING ENGINE Sequencing engine (SE) functions are not updated in the same way as regular configuration latches. The SE has its own dedicated 512-byte, nonvolatile, electrically erasable, programmable, read- only memory (EEPROM) ...

Page 20

ADM1065 The device also has several identification registers (read-only) that can be read across the SMBus. Table 10 lists these registers with their values and functions. Table 10. Identification Register Values and Functions Name Address Value Function MANID 0xF4 0x41 ...

Page 21

SCL SDA START BY MASTER FRAME 1 SLAVE ADDRESS 1 SCL (CONTINUED) SDA (CONTINUED) FRAME 3 DATA BYTE Figure 27. General SMBus Read Timing Diagram ...

Page 22

ADM1065 SMBus PROTOCOLS FOR RAM AND EEPROM The ADM1065 contains volatile registers (RAM) and nonvolatile registers (EEPROM). User RAM occupies Address 0x00 to Address 0xDF; the EEPROM occupies Address 0xF800 to Address 0xFBFF. Data can be written to and read ...

Page 23

Write Byte/Word In a write byte/word operation, the master device sends a command byte and one or two data bytes to the slave device, as follows: 1. The master device asserts a start condition on SDA. 2. The master sends ...

Page 24

ADM1065 READ OPERATIONS The ADM1065 uses the following SMBus read protocols. Receive Byte In a receive byte operation, the master device receives a single byte from a slave device, as follows: 1. The master device asserts a start condition on ...

Page 25

OUTLINE DIMENSIONS PIN 1 INDICATOR 12° MAX 1.00 0.85 0.80 SEATING PLANE 1.05 1.00 0.95 0.15 0.05 ROTATED 90° CCW ORDERING GUIDE Model Temperature Range ADM1065ACP −40°C to +85°C ADM1065ACP-REEL −40°C to +85°C ADM1065ACP-REEL7 −40°C to +85°C 1 ADM1065ACPZ −40°C ...

Page 26

ADM1065 NOTES Rev Page ...

Page 27

NOTES Rev Page ADM1065 ...

Page 28

ADM1065 NOTES ©2004–2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04634-0-5/08(C) Rev Page ...