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參數(shù)資料
| 型號(hào)： | U2102B |
| 英文描述： | Multifunction Timer |
| 中文描述： | 多功能定時(shí)器 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 205K |
| 代理商： | U2102B |
U2102B
TELEFUNKEN Semiconductors
Rev. A1, 30-May-96
8 (16)
RC Oscillator, Pin 5
An internal RC oscillator with following divider stage
1:2
11
permits a very long and reproducible tracking time.
The RC values for a certain tracking time, t
t
, are calcu-
lated as follows:
R
2
(k )
t
t
(s) 10
3
2048 C
2
( F)
1.4
C
2
( F)
t
t
(s) 10
3
2048 R
2
(k )
1.4
In reverse phase control mode, switchover from maxi-
mum current flow angle to the value set at Pin 4 takes
place after expiry of 3/4 of the total tracking time t
t
.
Current Monitoring, Pins 11 and 12
The current monitoring circuit integrated in the U2102B
represents a double electronic fuse. The circuit measures
the current flowing through the power switch by way of
the voltage drop across the shunt resistor R
sh
. This voltage
is supplied to Pin 11. If this voltage exceeds a value of
500 mV because of a high load current (e.g., short-
circuit), the switch-off latch is set and the switching
output Pin 11 closes immediately. Pin 11 can be
connected to the gate via a resistor or network, depending
on load conditions, thus allowing the switch-off behavior
to be adapted to the respective requirements. The short-
circuit current is reduced to a problem-free value by this
procedure.
There is a second threshold at 100 mV. The output stage
is disabled if the voltage at Pin 11 exceeds this value and
if it reaches this value for 120 ms in every half-wave
without exceeding the switch-off threshold of 500 mV.
Since high voltage peaks would be caused by switching
off due to the line and leakage inductances, the output
stage is not switched-off immediately but is simply not
enabled in the next half-wave. The circuit is designed so
that it also switches off in the case of changing over-
currents which do not occur in every half-wave. But in
this case the switch-off time is larger.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| U2102B-M | 功能描述:IC TIMER MULTI IGBT/MOSF 16-DIP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| U2102B-MFP | 功能描述:IC TIMER MULTI IGBT/MOSF 16-SOIC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| U2102B-MFPG3 | 功能描述:IC TIMER MULTI IGBT/MOSF 16-SOIC RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時(shí)鐘緩沖器/驅(qū)動(dòng)器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| U2102B-MFPG3Y | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Sensor Ctrl. Timer for IGBT/Power FET RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| U2102B-MFPY | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Sensor Ctrl. Timer for IGBT/Power FET RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
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