參數(shù)資料
型號(hào)： MIC833
廠商： Micrel Semiconductor,Inc.
英文描述： 30000 SYSTEM GATE 3.3 VOLT LOGIC CELL AR - NOT RECOMMENDED for NEW DESIGN
中文描述： 比較器和參考的可調(diào)節(jié)。磁滯回進(jìn)展信息
文件頁數(shù)： 6/8頁
文件大小： 35K
代理商： MIC833
MIC833
Micrel
MIC833
6
January 2000
Example Application
The battery charger of Figure 3 uses the MIC833 to detect a
low-battery voltage condition (V
DIS
) and enables a constant-
current source (I
CHG
). Charging current is enabled until a
charged-battery voltage condition (V
CHG
) is detected; at
which time the charging-current source is disabled.
Diode D1 was added to Figure 3 to ensure the disabled
current source does not draw battery current. Whether or not
D1 is required is a function of the output stage of the current
source and how it is disabled.
The circuitry of Figure 3 is deliberately generalized to imply
flexibility of application. Depending on the application, it may
not be possibly to power the MIC833 from the charger supply
voltage, see Note 2. It may be necessary to provide a
separate voltage regulator, or a resistive voltage divider to
reduce the VDD applied to the MIC833. The part can be
supplied by the battery voltage (V
BAT
) if this voltage is never
lower than 1.5V, the minimum operating V
DD
of the part.
Voltage thresholds, V
DIS
and V
CHG
, are programmed as
described in the appropriate above paragraph.
VDD
LTH
HTH
R4
100k
Battery
V
(to load)
D1
Note 1
Note 2
Constant-Current
Source
IN
V
DIS
R2
R3
V
CHG
MIC833
0.1
μ
F
OUT
GND
OUT
GND
EN
Charger
Supply
Voltage
Note 1.
D1 may not be required.
It is shown here to
indicate the disabled
current source should
not load the battery.
Note 2.
V
of the MIC833 is
limited to 5.5V maximum.
The part can be powered
by V
if the battery is
never discharged below
V
DD(min)
= 1.5V
Figure 3. Battery Charger
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MIC833_02 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Comparator and Reference with Adj. Hystersis
MIC833BM5 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述:
MIC833BM5 TR 功能描述:IC COMPARATOR LATCH REF SOT23-5 RoHS:否 類別:集成電路 (IC) >> 線性 - 比較器 系列:IttyBitty® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(biāo)準(zhǔn)）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標(biāo)準(zhǔn)）: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
MIC833BM5TR 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述:
MIC833YM5 TR 功能描述:校驗(yàn)器 IC 1 A Undervoltage Comparator with 1.5% 1.24V Reference, Adjustable Hysteresis, Open-Drain Output in SOT23-5 (Lead Free) RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
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