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參數(shù)資料
| 型號： | AS1926-BSTT-D07 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Low Voltage, Manual Reset; Package Type: SOT23-5; Reset Type: Open-Drain Active Low; Timeout Period: 140,00; Supervised Voltages (IN1): 0,81 |
| 封裝： | SOT23-5 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 339K |
| 代理商： | AS1926-BSTT-D07 |
AS1925, AS1926
Ultra-Low Voltage Microprocessor Supervisory
Circuit with Manual Reset
1 General Description
Data Sheet
www.austriamicrosystems.com
Revision 1.00
1 - 12
The AS1925/AS1926 microprocessor supervisory cir-
cuits were designed to assert a single reset if the moni-
tored supply voltage drops below its reset threshold or if
the manual reset is activated. The reset remains
asserted for a fixed timeout delay after V
CC
has risen
above the reset threshold and the manual reset is deas-
serted.
Their small size, excellent circuit reliability, and low sup-
ply current (3.5μA) make the AS1925/AS1926 a very
low cost solution by eliminating external components
and adjustments when used with low-voltage (+0.9 to
+1.5V) systems.
The devices are available as the standard products
listed in
Table 1
.
Table 1. Standard Products
The active-low open-drain reset output requires a pullup
resistor that can be connected to a voltage from 0 to
V
CC
. The reset comparator was specifically designed to
ignore fast V
CC
transients.
The devices are available in a 5-pin SOT23 package.
Figure 1. Block Diagram and Pinout
2 Key Features
!
Factory-Trimmed Reset Thresholds for Monitoring
Supplies from 0.9 to 1.5V
!
Low Power Consumption: 3.5μA
!
Reset Threshold Accuracy Over Temperature:
±2.5%
!
Four Timeout Periods: 1.5ms, 30ms, 210ms, and
1.68s
!
Three Reset Output Types:
- Active-Low Push/Pull
- Active-High Push/Pull
- Active Low Open-Drain
!
Guaranteed Reset Valid to V
CC
= 0.55V (Active-
Low)
!
Manual Reset Input
!
Immune to Fast V
CC
Transients
!
5-pin SOT23 Package
3 Applications
The device is ideal for portable and battery-powered
systems, embedded controllers, intelligent instruments,
automotive systems, telecommunications equipment,
networking equipment, computer workstations and serv-
ers, critical CPU monitoring applications, and any low-
voltage application.
Model
Output Type
AS1925
Active-Low Push/Pull,
Active-High Push/Pull
AS1926
Active-High Push/Pull,
Active-Low Open-Drain
GND 2
+
–
+
–
Reset
Output
V
REF
AS1925/
AS1926
Reset Timeout
Period
Manual Reset
Detect
MRN
Pullup
AS1925/
AS1926
2
GND
3
RESET
1
RESETN
4 MRN
5 V
CC
5
V
CC
1
RESETN
4
MRN
3
RESET
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1972 | Dual Comparator, Push-Pull; Package Type: MSOP-8 |
| AS1974 | Quad Comparator, Push-Pull; Package Type: TSSOP-14 |
| AS1975 | Quad Comparator, Open-Drain; Package Type: TSSOP-14 |
| AS1970-T | Single Comparator, Push-Pull; Package Type: SOT23-5 |
| AS1973-T | Dual Comparator. Open-Drain; Package Type: MSOP-8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1926D07-T | 制造商:ams 功能描述:IC SUPERVISOR MAN RESET SOT23-5 |
| AS1927L-BTDT | 制造商:ams 功能描述:Supervisory Circuits |
| AS1927L-BTDT33S | 制造商:ams 功能描述:IC SUPERVISOR ACT LOW 6TDFN 制造商:ams 功能描述:T&R / TDFN 2x2 6 |
| AS1927L-BTDT-33s-1k | 功能描述:監(jiān)控電路 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 |
| AS1927LBTDT33S-1K | 制造商:ams 功能描述:TDFN 2x2 6 |
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