- 您现在的位置：买卖IC网 > PDF目录16522 > EVAL-ADM1064TQEB (Analog Devices Inc)BOARD EVALUATION FOR ADM1064TQ PDF资料下载
参数资料
| 型号： | EVAL-ADM1064TQEB |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/32页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADM1064TQ |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADM1064 |
| 主要属性： | 10 通道监控器 / 序列发生器，6 个电压输出 DAC |
| 次要属性： | 通过 SMBus（通过 USB）实现的可编程 GUI |
| 已供物品： | 2 个板，线缆，CD |
| 相关产品： | ADM1064ASUZ-ND - IC SEQUENCER/SUPERVISOR 48-TQFP ADM1064ACPZ-ND - IC SEQUENCER/SUPERVISOR 40-LFCSP |
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页当前第14页第15页第16页第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
ADM1064
INPUTS
OV
COMPARATOR
SUPPLY SUPERVISION
The ADM1064 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 VX5) and have dual functionality.
They can be used either as SFDs with functionality similar to
VH and VPx, or as CMOS-/TTL-compatible logic inputs to the
device. Therefore, the ADM1064 can have up to 10 analog inputs,
a minimum of five analog inputs and five digital inputs, or
a combination thereof. If an input is used as an analog input,
it cannot be used as a digital input. Therefore, a configuration
shows the details of each input.
PROGRAMMING THE SUPPLY FAULT DETECTORS
The ADM1064 can have up to 10 SFDs on its 10 input channels.
These highly programmable reset generators enable the supervision
of up to 10 supply voltages. The supplies can be as low as 0.573 V
and as high as 14.4 V. The inputs can be configured to detect
an undervoltage fault (the input voltage drops below a prepro-
grammed value), an overvoltage fault (the input voltage rises above
a preprogrammed value), or an out-of-window fault (the input
voltage is outside a preprogrammed range). The thresholds can be
programmed to an 8-bit resolution in registers provided in the
ADM1064. This translates to a voltage resolution that is dependent
on the range selected.
The resolution is given by
Step Size = Threshold Range /255
The threshold value required is given by
V T = ( V R × N )/255 + V B
where:
V T is the desired threshold voltage (undervoltage or overvoltage).
V R is the voltage range.
N is the decimal value of the 8-bit code.
V B is the bottom of the range.
Reversing the equation, the code for a desired threshold is
given by
N = 255 × ( V T ? V B )/ V R
For example, if the user wants to set a 5 V overvoltage threshold
on VP1, the code to be programmed in the PS1OVTH register
(as discussed in the AN-698 Application Note at www.analog.com )
is given by
N = 255 × (5 ? 2.5)/3.5
Therefore, N = 182 (1011 0110 or 0xB6).
INPUT COMPARATOR HYSTERESIS
The UV and OV comparators shown in Figure 19 are always
monitoring VPx. To avoid chatter (multiple transitions when the
input is very close to the set threshold level), these comparators
have digitally programmable hysteresis. The hysteresis can be
RANGE
SELECT
ULTRA
LOW
VPx +
Therefore, if the high range is selected on VH, the step size can
VREF
–
GLITCH
FILTER
FAULT
OUTPUT
be calculated as follows:
+
(14.4 V ? 6.0 V)/255 = 32.9 mV
LOW
MID
–
UV
COMPARATOR
FAULT TYPE
SELECT
the bottom of each range (V B ), and the range itself (V R ).
Table 5. Voltage Range Limits
Voltage Range (V)
0.573 to 1.375
1.25 to 3.00
2.5 to 6.0
6.0 to 14.4
V B (V)
0.573
1.25
2.5
6.0
V R (V)
0.802
1.75
3.5
8.4
Figure 19. Supply Fault Detector Block
The hysteresis is added after a supply voltage goes out of tolerance.
Therefore, the user can program the amount above the under-
voltage threshold to which the input must rise before an
undervoltage fault is deasserted. Similarly, the user can program
the amount below the overvoltage threshold to which an input
must fall before an overvoltage fault is deasserted.
Table 6. Input Functions, Thresholds, and Ranges
Input
VH
VPx
VXx
Function
High Voltage Analog Input
Positive Analog Input
High-Z Analog Input
Digital Input
Voltage Range (V)
2.5 to 6.0
6.0 to 14.4
0.573 to 1.375
1.25 to 3.00
2.5 to 6.0
0.573 to 1.375
0 to 5.0
Maximum Hysteresis
425 mV
1.02 V
97.5 mV
212 mV
425 mV
97.5 mV
N/A
Voltage Resolution (mV)
13.7
32.9
3.14
6.8
13.7
3.14
N/A
Glitch Filter (μs)
0 to 100
0 to 100
0 to 100
0 to 100
0 to 100
0 to 100
0 to 100
Rev. D | Page 14 of 32
相关PDF资料 |
PDF描述 |
|---|---|
| M3AKK-1018R | IDC CABLE - MSC10K/MC10M/MPK10K |
| 5492193-1 | PIGTAIL SM LDS SCAPC |
| VI-J01-EZ-S | CONVERTER MOD DC/DC 12V 25W |
| 5492022-9 | CA SM LDD FC(NG)TOFC(NG)19FT |
| GMM08DTBT-S189 | CONN EDGECARD 16POS R/A .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADM1064TQEBZ | 制造商:Analog Devices 功能描述:EVAL BOARD - Bulk |
| EVAL-ADM1065LFEB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-ADM1065LFEBZ | 制造商:Analog Devices 功能描述:EVAL BD FOR ADM1065 SUPER SEQUENCERS - Bulk |
| EVAL-ADM1065TQEB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-ADM1065TQEBZ | 功能描述:BOARD EVALUATION FOR ADM1065TQ RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
发布紧急采购，3分钟左右您将得到回复。