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參數(shù)資料
| 型號(hào)： | ISPPAC-POWR1014 |
| 廠商： | Lattice Semiconductor Corporation |
| 英文描述： | In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
| 中文描述： | 在系統(tǒng)可編程電源監(jiān)控器，復(fù)位發(fā)生器和排序控制器 |
| 文件頁數(shù)： | 13/45頁 |
| 文件大?。?/td> | 999K |
| 代理商： | ISPPAC-POWR1014 |
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Lattice Semiconductor
ispPAC-POWR1014/A Data Sheet
13
Figure 6. ispPAC-POWR1014/A Voltage Monitors
Figure 6 shows the functional block diagram of one of the 10 voltage monitor inputs - ‘x’ (where x = 1...10). Each
voltage monitor can be divided into three sections: Analog Input, Window Control, and Filtering.
The voltage input is monitored by two individually programmable trip-point comparators, shown as CompA and
CompB. Table 1 shows all trip points and the range to which any comparator’s threshold can be set.
Each comparator outputs a HIGH signal to the PLD array if the voltage at its positive terminal is greater than its pro-
grammed trip point setting, otherwise it outputs a LOW signal.
A hysteresis of approximately 1% of the setpoint is provided by the comparators to reduce false triggering as a
result of input noise. The hysteresis provided by the voltage monitor is a function of the input divider setting. Table 3
lists the typical hysteresis versus voltage monitor trip-point.
AGOOD Logic Signal
All the VMO
N
comparators auto-calibrate immediately after a power-on reset event. During this time, the digital
glitch filters are also initialized. This process completion is signalled by an internally generated logic signal:
AGOOD. All logic using the VMO
N
comparator logic signals must wait for the AGOOD signal to become active.
Programmable Over-Voltage and Under-Voltage Thresholds
Figure 7 (a) shows the power supply ramp-up and ramp-down voltage waveforms. Because of hysteresis, the com-
parator outputs change state at different thresholds depending on the direction of excursion of the monitored power
supply.
Glitch
Filter
M
Trip Point A
+
–
+
–
Comp A
Comp B
Comp A/
W
indo
w
Select
V
MONxB
Logic
Signal
V
MONx
Trip Point B
Analog Inp
u
t
W
indo
w
Control
Filtering
ispPAC-PO
W
R1014/A
To ADC
(PO
W
R1014A only)
V
MONxA
Logic
Signal
PLD
Array
V
MONx Stat
u
s
I
2
C Interface
Unit (PO
W
R1014A
only)
Glitch
Filter
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISPPAC-POWR1014-01T48I | In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
| ISPPAC-POWR1014-01TN48I | In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
| ISPPAC-POWR1014A | In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
| ISPPAC-POWR1014A-01T48I | In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
| ISPPAC-POWR1014A-01TN48I | In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISPPAC-POWR1014_08 | 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller |
| ispPAC-POWR1014-01T48I | 功能描述:監(jiān)控電路 Prec. Prog. Pwr Sppl y Seq. Mon. Trim I RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| ISPPAC-POWR1014-01TN148I | 制造商:Lattice Semiconductor Corporation 功能描述:#WR MGR ISP RESET & SEQ CNTRL 48TQFP |
| ispPAC-POWR1014-01TN48I | 功能描述:監(jiān)控電路 Prec. Prog. Pwr Sppl y Seq. Mon. Trim I RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| ispPAC-POWR1014-02T48I | 功能描述:監(jiān)控電路 Prec Progm Pwr Sply Seq Mon Trim, IND RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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