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| 型号： | ADM1169ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/36页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 40LFCSP |
| 标准包装： | 1 |
| 系列： | Super Sequencer® |
| 应用： | 电源监控器，序列发生器 |
| 输入电压： | 3 V ~ 14.4 V |
| 电源电压： | 3 V ~ 14.4 V |
| 电流 - 电源： | 4.2mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 40-LFCSP-WQ（6x6） |
| 包装： | 托盘 |
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Super Sequencer with Margining Control
and Nonvolatile Fault Recording
Data Sheet
FEATURES
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
APPLICATIONS
Central office systems
Servers/routers
Multivoltage system line cards
DSP/FPGA supply sequencing
In-circuit testing of margined supplies
FUNCTIONAL BLOCK DIAGRAM
14.4 V on VH
REFIN
REFOUT REFGND
SDA SCL
A1
A0
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
ADM1169
12-BIT
SAR ADC
VREF
SMBus
INTERFACE
General-purpose logic input
8 programmable driver outputs, PDO1 to PDO8 (PDOx)
CLOSED-LOOP
MARGINING SYSTEM
FAULT
RECORDING
EEPROM
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
NFET (PDO1 to PDO6 only)
Sequencing engine (SE) implements state machine control of
PDO outputs
State changes conditional on input events
VX1
VX2
VX3
VX4
VP1
VP2
VP3
VH
DUAL-
FUNCTION
INPUTS
(LOGIC INPUTS
OR
SFDs)
PROGRAMMABLE
RESET
GENERATORS
(SFDs)
SEQUENCING
ENGINE
CONFIGURABLE
OUTPUT
DRIVERS
(HV CAPABLE OF
DRIVING GATES
OF NFET)
CONFIGURABLE
OUTPUT
DRIVERS
(LV CAPABLE
OF DRIVING
LOGIC SIGNALS)
PDO1
PDO2
PDO3
PDO4
PDO5
PDO6
PDO7
PDO8
Enables complex control of boards
Power-up and power-down sequence control
Fault event handling
AGND
V OUT
DAC
V OUT
DAC
V OUT
DAC
V OUT
DAC
VDD
ARBITRATOR
PDOGND
VDDCAP
Interrupt generation on warnings
Watchdog function can be integrated in SE
Program software control of sequencing through SMBus
Complete voltage margining solution for 4 voltage rails
DAC1 DAC2 DAC3 DAC4 VCCP
Figure 1.
GENERAL DESCRIPTION
GND
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
Available in 32-lead, 7 mm × 7 mm LQFP and 40-lead,
6 mm × 6 mm LFCSP packages
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.
For more information about the ADM1169 register map, refer
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?2011–2013 Analog Devices, Inc. All rights reserved.
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