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參數(shù)資料
| 型號： | AS1976-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 電源管理 |
| 英文描述： | nPower,Single Comp. Push-Pull; Package Type: SOT23-5 |
| 中文描述： | COMPARATOR, 10000 uV OFFSET-MAX, 13000 ns RESPONSE TIME, PDSO5 |
| 封裝： | SOT23-5 |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 422K |
| 代理商： | AS1976-T |
www.austriamicrosystems.com
Revision 1.01
11 - 17
AS1976/AS1977
Data Sheet - Application Information
9 Application Information
The AS1976/AS1977 comparators are perfect for use with all 2-cell battery-powered applications.
Figure 25
shows a
typical application for the AS1977.
Figure 25. AS1977
Typical Application Circuit
Internal Hysteresis
The comparators were designed with 3mV of internal hysteresis to neutralize the effects of parasitic feedback, i.e., to
prevent unwanted rapid changes between the two output states.
The internal hysteresis in the AS1976/AS1977 creates two trip points:
!
Rising Input Voltage (V
THR
) – The comparator switches its output from low to high as V
IN
rises above this trip point.
!
Falling Input Voltage (V
THF
) – The comparator switches its output from high to low as V
IN
falls below this trip point.
The area between the trip points is the hysteresis band (V
HB
)
(see Figure 26)
. When the AS1976/AS1977 input volt-
ages are equivalent, the hysteresis effectively causes one input to move quickly past the other, thus taking the input
out of the region where oscillation occurs. In
Figure 26
IN- has a fixed voltage applied and IN+ is varied.
Note:
If the inputs are reversed the output will be inverted.
Figure 26. Threshold Hysteresis Band
AS1977
R
PULLUP
V
IN
4
IN-
1
OUT
5
V
CC
2
V
EE
3
IN+
IN+
OUT
V
THR
V
THF
IN-
Thresholds
Hysteresis
Band
V
HB
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1977 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Ultra-Low Current, 1.8V Comparators |
| AS1977-T | 功能描述:IC COMPARATOR OPEN SOT23-5 RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| AS197R6FLF | 制造商:TT Electronics / IRC 功能描述:AS197R6FLF |
| AS197R6HLF | 制造商:TT Electronics / IRC 功能描述:AS197R6HLF |
| AS197R6JLF | 制造商:TT Electronics / IRC 功能描述:AS197R6JLF |
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