EVAL-ADM1063LFEB AD [Analog Devices], EVAL-ADM1063LFEB Datasheet

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EVAL-ADM1063LFEB

Manufacturer Part Number
EVAL-ADM1063LFEB
Description
Multisupply Supervisor/Sequencer with ADC and Temperature Monitoring
Manufacturer
AD [Analog Devices]
Datasheet
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
5 dual-function inputs, VX1 to VX5
10 programmable output drivers, PDO1 to PDO10
Sequencing engine (SE) implements state machine control of
Complete voltage margining solution for 6 voltage rails
6 voltage output, 8-bit DACs (0.300 V to 1.551 V) allow voltage
12-bit ADC for readback of all supervised voltages
1 internal and 2 external temperature sensors
Reference input, REFIN, has 2 input options
Device powered by the highest of VP1 to VP4, VH for
User EEPROM: 256 bytes
Industry-standard, 2-wire bus interface (SMBus)
Guaranteed PDO low with VH, VPn = 1.2 V
40-lead, 6 mm × 6 mm LFCSP and
Rev. 0
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
better than 1% accuracy
supplies up to
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 VPn
Open collector with weak pull-up to VDDCAP or VPn
Internally charge-pumped high drive for use with external
PDO outputs
adjustment via dc-to-dc converter trim/feedback node
Driven directly from 2.048 V (±0.25%) REFOUT pin
More accurate external reference for improved
improved redundancy
48-lead, 7 mm × 7 mm TQFP packages
14.4 V on VH
6 V on VP1 to VP4
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
ADC performance
with ADC and Temperature Monitoring
Multisupply Supervisor/Sequencer
AGND
APPLICATIONS
Central office systems
Servers/routers
Multivoltage system line cards
DSP/FPGA supply sequencing
In-circuit testing of margined supplies
GENERAL DESCRIPTION
The ADM1063 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 ADM1063 integrates a 12-bit ADC and six 8-bit
voltage output DACs. These circuits can be used to implement a
closed-loop margining system, which enables supply adjustment
by altering either the feedback node or reference of a dc-to-dc
converter using the DAC outputs.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
VX1
VX2
VX3
VX4
VX5
VP1
VP2
VP3
VP4
VH
D1P
D1N D2P
SENSOR
TEMP
PROGRAMMABLE
FUNCTIONAL BLOCK DIAGRAM
CLOSED-LOOP
MARGINING SYSTEM
(LOGIC INPUTS
GENERATORS
FUNCTION
INPUTS
RESET
(SFDs)
DUAL-
D2N
SFDs)
OR
ADM1063
INTERNAL
© 2005 Analog Devices, Inc. All rights reserved.
DIODE
REFIN
SAR ADC
12-BIT
SEQUENCING
REFOUT
Figure 1.
ENGINE
VREF
REFGND
VCCP
N-CHANNEL FET)
CONFIGURABLE
CONFIGURABLE
LOGIC SIGNALS)
SDA SCL A1
(HV CAPABLE
(LV CAPABLE
(continued on Page 3)
OF DRIVING
OF DRIVING
GATES OF
ADM1063
DRIVERS
DRIVERS
ARBITRATOR
OUTPUT
OUTPUT
INTERFACE
GND
www.analog.com
SMBus
VDD
EEPROM
A0
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
PDO9
PDO10
PDOGND
VDDCAP

Related parts for EVAL-ADM1063LFEB

EVAL-ADM1063LFEB Summary of contents

Page 1

FEATURES Complete supervisory and sequencing solution for supplies 10 supply fault detectors enable supervision of supplies to better than 1% accuracy 5 selectable input attenuators allow supervision of supplies ...

Page 2

ADM1063 TABLE OF CONTENTS General Description ......................................................................... 3 Specifications..................................................................................... 4 Pin Configurations and Function Descriptions ........................... 7 Absolute Maximum Ratings............................................................ 8 Thermal Characteristics .............................................................. 8 ESD Caution.................................................................................. 8 Typical Performance Characteristics ............................................. 9 Powering the ADM1063 ................................................................ 12 Inputs................................................................................................ 13 ...

Page 3

GENERAL DESCRIPTION (continued from Page 1) 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 the board’s functionality at −5% ...

Page 4

ADM1063 SPECIFICATIONS 3 14 VPn = 3 6.0 V Table 1. Parameter POWER SUPPLY ARBITRATION VH, VPn VP VH VDDCAP C VDDCAP POWER SUPPLY Supply Current VPn ...

Page 5

Parameter Conversion Time Offset Error Input Noise 2 TEMPERATURE SENSOR Local Sensor Accuracy Local Sensor Supply Voltage Coefficient Remote Sensor Accuracy Remote Sensor Supply Voltage Coefficient Remote Sensor Current Source Temperature for Code 0x800 Temperature for Code 0xC00 Temperature Resolution ...

Page 6

ADM1063 Parameter Standard (Digital Output) Mode (PDO1 to PDO10 SINK R PULL- (VPn) SOURCE Three-State Output Leakage Current Oscillator Frequency DIGITAL INPUTS (VXn, A0, A1) Input High Voltage, V ...

Page 7

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS VX1 1 PIN 1 VX2 2 INDICATOR VX3 3 VX4 4 ADM1063 VX5 5 TOP VIEW VP1 6 (Not to Scale) VP2 7 VP3 8 VP4 9 ...

Page 8

ADM1063 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Voltage on VH Pin Voltage on VP Pins Voltage on VX Pins Voltage on DxN, DxP, and REFIN Pins Input Current at Any Pin Package Input Current Maximum Junction Temperature (T max) J ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS (V) VP1 Figure 5. V vs. V VDDCAP (V) VH Figure 6. ...

Page 10

ADM1063 2.5 5.0 7.5 ( µ 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 ...

Page 11

CH1 200mV M1.00µs CH1 756mV Figure 17. Transient Response of DAC Code Change into Typical Load 1 CH1 200mV M1.00µs CH1 Figure 18. Transient Response of DAC to Turn-On from HI-Z State DAC 20kΩ BUFFER PROBE OUTPUT 47pF POINT ...

Page 12

ADM1063 POWERING THE ADM1063 The ADM1063 is powered from the highest voltage input on either the positive-only supply inputs (VPn) or the high voltage supply input (VH). This technique offers improved redundancy, because the device is not dependent on any ...

Page 13

INPUTS SUPPLY SUPERVISION The ADM1063 has 10 programmable inputs. Five of these are dedicated supply fault detectors (SFDs). These dedicated inputs are called VH and VP1 to VP4 by default. The other five inputs are labeled VX1 to VX5 and ...

Page 14

ADM1063 INPUT COMPARATOR HYSTERESIS The UV and OV comparators shown in Figure 22 are always looking at VPn. To avoid chattering (multiple transitions when the input is very close to the set threshold level), these compara- tors have digitally programmable ...

Page 15

VXn PINS AS DIGITAL INPUTS As discussed in the Supply Supervision with VXn Inputs, the VXn input pins on the ADM1063 have dual functionality. The second function digital input to the device. Therefore, the ADM1063 can be ...

Page 16

ADM1063 OUTPUTS SUPPLY SEQUENCING THROUGH CONFIGURABLE OUTPUT DRIVERS Supply sequencing is achieved with the ADM1063 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 ...

Page 17

SEQUENCING ENGINE OVERVIEW The ADM1063 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 enable ...

Page 18

ADM1063 SEQUENCING ENGINE APPLICATION EXAMPLE The application in this section demonstrates the operation of the SE. Figure 27 shows how the simple building block of a single SE state can be used to build a power-up sequence for a 3-supply ...

Page 19

SEQUENCE DETECTOR The sequence detector block is used to detect when a step in a sequence has been completed. It looks for one of the inputs to the SE to change state and is most often used as the gate ...

Page 20

ADM1063 VOLTAGE READBACK The ADM1063 has an on-board, 12-bit, accurate ADC for voltage readback over the SMBus. The ADC has a 12-channel analog mux on the front end. The 12 channels consist of the 10 SFD inputs (VH, VP1 to ...

Page 21

SUPPLY MARGINING OVERVIEW It is often necessary for the system designer to adjust supplies, either to optimize their level or force them away from nominal values to characterize the system performance under these conditions. This is a function typically performed ...

Page 22

ADM1063 WRITING TO THE DACs Four DAC ranges are offered. They can be placed with midcode (Code 0x7F) at 0.6 V, 0.8 V, 1.0 V, and 1.25 V. These voltages are placed to correspond to the most common feedback voltages. ...

Page 23

TEMPERATURE MEASUREMENT SYSTEM The ADM1063 contains an on-chip, band gap temperature sensor, whose output is digitized by the on-chip, 12-bit ADC. Theoretically, the temperature sensor and ADC can measure temperatures from −128°C to +127°C with a resolution of 0.125°C. Because ...

Page 24

ADM1063 CPU REMOTE SENSING TRANSISTOR ADM1063 2N3904 DxP NPN DxN Figure 35. Measuring Temperature Using an NPN Transistor V DD × BIAS THERM DA DxP THERM DC DxN BIAS DIODE LOW-PASS FILTER f = 65kHz C ...

Page 25

APPLICATIONS DIAGRAM 12V OUT 3V OUT 3.3V OUT 2.5V OUT 1.8V OUT 1.2V OUT 0.9V OUT POWER_ON RESET_L 10µF 3.3V OUT 2.5V OUT 3.3V OUT 2.5V OUT VH ADM1063 VP1 PDO1 VP2 PDO2 VP3 ...

Page 26

ADM1063 COMMUNICATING WITH THE ADM1063 CONFIGURATION DOWNLOAD AT POWER-UP The configuration of the ADM1063 (UV/OV thresholds, glitch filter timeouts, PDO configurations, and so on) is dictated by the contents of RAM. The RAM is comprised of digital latches that are ...

Page 27

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 EEPROM for storing state definitions, providing 63 individual ...

Page 28

ADM1063 The device also has several identification registers (read-only), which can be read across the SMBus. Table 11 lists these registers with their values and functions. Table 11. Identification Register Values and Functions Name Address Value Function MANID 0xF4 0x41 ...

Page 29

SCL SDA START BY MASTER FRAME 1 SLAVE ADDRESS 1 SCL (CONTINUED) SDA D7 D6 (CONTINUED) t SCL HD; STA SDA t BUF P S SMBus PROTOCOLS FOR RAM AND EEPROM The ADM1063 ...

Page 30

ADM1063 • To erase a page of EEPROM memory. EEPROM memory can be written to only unprogrammed. Before writing to one or more EEPROM memory locations that are already programmed, the page(s) containing those locations must first ...

Page 31

The master sends a command code that tells the slave device to expect a block write. The ADM1063 command code for a block write is 0xFC (1111 1100). 5. The slave asserts ACK on SDA. 6. The master sends ...

Page 32

ADM1063 SLAVE COMMAND 0xFD SLAVE ADDRESS (BLOCK READ) ADDRESS Figure 49. Block Read from EEPROM or RAM Error Correction The ADM1063 provides the option of issuing a packet ...

Page 33

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 6.00 BSC SQ 0.60 MAX 0.50 TOP BSC 5.75 VIEW BCS SQ 0.50 0.40 0.30 0.80 MAX 0.65 TYP 0.05 ...

Page 34

... ADM1063ASU −40°C to +85°C ADM1063ASU-REEL7 −40°C to +85°C 1 ADM1063ASUZ −40°C to +85°C ADM1063ASUZ-REEL7 1 −40°C to +85°C EVAL-ADM1063LFEB EVAL-ADM1063TQEB Pb-free part. Package Description 40-Lead LFCSP_VQ 40-Lead LFCSP_VQ 40-Lead LFCSP_VQ 40-Lead LFCSP_VQ 48-Lead TQFP 48-Lead TQFP ...

Page 35

NOTES Rev Page ADM1063 ...

Page 36

ADM1063 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04632–0–4/05(0) Rev Page ...

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