- 您现在的位置：买卖IC网 > PDF目录15308 > ADM1066ASUZ-REEL (Analog Devices Inc)IC SEQUENCER/SUPERVISOR 48TQFP PDF资料下载
参数资料
| 型号： | ADM1066ASUZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/32页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCER/SUPERVISOR 48TQFP |
| 标准包装： | 2,000 |
| 系列： | Super Sequencer® |
| 类型： | 序列发生器 |
| 监视电压数目： | 12 |
| 输出： | 可编程 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TQFP |
| 供应商设备封装： | 48-TQFP（7x7） |
| 包装： | 带卷 (TR) |
| 配用： | EVAL-ADM1066TQEBZ-ND - BOARD EVALUATION FOR ADM1066TQ |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页当前第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
ADM1066
OUTPUTS
SUPPLY SEQUENCING THROUGH
CONFIGURABLE OUTPUT DRIVERS
Supply sequencing is achieved with the ADM1066 using the
programmable driver outputs (PDOs) on the device as control
signals for supplies. The output drivers can be used as logic
The data driving each of the PDOs can come from one of three
sources. The source can be enabled in the PDOxCFG configu-
ration register (see the AN-698 Application Note for details).
The data sources are as follows:
? Output from the SE.
enables or as FET drivers.
The sequence in which the PDOs are asserted (and, therefore,
the supplies are turned on) is controlled by the sequencing engine
(SE). The SE determines what action is taken with the PDOs,
based on the condition of the ADM1066 inputs. Therefore, the
?
?
Directly from the SMBus. A PDO can be configured so that
the SMBus has direct control over it. This enables software
control of the PDOs. Therefore, a microcontroller can be
used to initiate a software power-up/power-down sequence.
On-chip clock. A 100 kHz clock is generated on the device.
PDOs can be set up to assert when the SFDs are in tolerance, the
correct input signals are received on the VXx digital pins, no
warnings are received from any of the inputs of the device, and
at other times. The PDOs can be used for a variety of functions.
The primary function is to provide enable signals for LDOs or
dc-to-dc converters that generate supplies locally on a board.
The PDOs can also be used to provide a PWRGD signal, when all
the SFDs are in tolerance, or a RESET output if one of the SFDs
goes out of specification (this can be used as a status signal for a
DSP, FPGA, or other microcontroller).
This clock can be made available on any of the PDOs. It
can be used, for example, to clock an external device such
as an LED.
DEFAULT OUTPUT CONFIGURATION
All of the internal registers in an unprogrammed ADM1066
device from the factory are set to 0. Because of this, the PDOx pins
are pulled to GND by a weak (20 kΩ) on-chip pull-down resistor.
As the input supply to the ADM1066 ramps up on VPx or VH,
all PDOx pins behave as follows:
The PDOs can be programmed to pull up to a number of different
options. The outputs can be programmed as follows:
?
?
Input supply = 0 V to 1.2 V. The PDOs are high impedance.
Input supply = 1.2 V to 2.7 V. The PDOs are pulled to GND
?
Open drain (allowing the user to connect an external pull-
up resistor).
?
by a weak (20 kΩ) on-chip pull-down resistor.
Supply > 2.7 V. Factory-programmed devices continue to
?
?
?
?
?
?
Open drain with weak pull-up to V DD .
Open drain with strong pull-up to V DD .
Open drain with weak pull-up to VPx.
Open drain with strong pull-up to VPx.
Strong pull-down to GND.
Internally charge-pumped high drive
(12 V, PDO1 to PDO6 only).
pull all PDOs to GND by a weak (20 kΩ) on-chip pull-down
resistor. Programmed devices download current EEPROM
configuration data, and the programmed setup is latched. The
PDO then goes to the state demanded by the configuration.
This provides a known condition for the PDOs during
power-up.
The internal pull-down can be overdriven with an external pull-
up of suitable value tied from the PDOx pin to the required pull-up
The last option (available only on PDO1 to PDO6) allows the
user to directly drive a voltage high enough to fully enhance an
external N-FET, which is used to isolate, for example, a card-
side voltage from a backplane supply (a PDO can sustain greater
than 10.5 V into a 1 μA load). The pull-down switches can also
be used to drive status LEDs directly.
voltage. The 20 kΩ resistor must be accounted for in calculating
a suitable value. For example, if PDOx must be pulled up to 3.3 V,
and 5 V is available as an external supply, the pull-up resistor
value is given by
3.3 V = 5 V × 20 kΩ/( R UP + 20 kΩ)
Therefore,
R UP = (100 kΩ ? 66 kΩ)/3.3 V = 10 kΩ
VFET (PDO1 TO PDO6 ONLY)
VP4
V DD
SE DATA
SMBus DATA
CFG4 CFG5 CFG6
SEL
VP1
PDO
CLK DATA
Figure 25. Programmable Driver Output
Rev. E | Page 17 of 32
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3778EF | IC REG CTRLR BUCK PWM CM 20TSSOP |
| ADM1066ACPZ-REEL | IC SEQUENCER/SUPERVISOR 40LFCSP |
| LTC3861EUHE#TRPBF | IC REG CTRLR BUCK PWM VM 36-QFN |
| LT3759HMSE#TRPBF | IC REG CTRLR BST INV PWM 12-MSOP |
| GBC55DCST-S288 | CONN EDGECARD 110POS .100 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1066ASUZ-REEL7 | 功能描述:IC SEQUENCER/SUPERVISOR 48TQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:Super Sequencer® 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| ADM1067 | 制造商:AD 制造商全称:Analog Devices 功能描述:Super Sequencer with Open-Loop Margining DACs |
| ADM1067ACP | 制造商:Analog Devices 功能描述:Sequencer 40-Pin LFCSP EP |
| ADM1067ACP-REEL | 制造商:Analog Devices 功能描述:Sequencer 40-Pin LFCSP EP T/R |
| ADM1067ACP-REEL7 | 制造商:Analog Devices 功能描述:Sequencer 40-Pin LFCSP EP T/R |
发布紧急采购，3分钟左右您将得到回复。