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參數(shù)資料
| 型號(hào)： | TLE6288 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Smart 6 Channel Peak&Hold Switch |
| 中文描述： | 智能6通道峰 |
| 文件頁數(shù)： | 5/23頁 |
| 文件大?。?/td> | 1258K |
| 代理商： | TLE6288 |
Preliminary Datasheet TLE6288 R
Vp2
Page 5
13.01.2003
Current Regulator : Peak current control with fixed off-time
Hold only : When the channel is turned on externally (SPI or parallel input) the current rises to the pro-
grammed hold current level. Then the channel is internally turned off and a timer is started for a con-
stant off-time (e.g. 200μs). After this time the channel is internally turned on again until the hold current
level is reached again and so on. This regulation workes automatically until the channel is turned of
externally.
Peak and hold mode with minimum peak time: When the channel is turned on the current rises to the
programmed peak current level. Then the channel is internally turned off, the current regulator changes
to hold current values and a timer is started for a constant off-time. After this time the channel is inter-
nally turned on again until the hold current value is reached and then again turned off for the fixed off
time. This regulation workes automatically until the channel is turned of externally.
Peak and hold mode with programmed peak time: When the channel is turned on the current rises to
the programmed peak current level. Then the channel is internally turned off and a timer is started for a
constant off-time. After this time the channel is internally turned on again until the peak current value is
reached and then again turned off. This works until the programmed peak time is over. Then the cur-
rent regulator changes to hold current values and workes as described under "hold only".
Peak Current, Peak Time, Hold Current and fixed Off-Time can be set via SPI.
To avoid regulation disturbances by current transients during switching (e.g. caused by ESD capacitors
at the outputs) the current regulator has a "leading edge blanking" of typical 20μs in all three regulation
modes. After turning on the DMOS (internally or externally) the current regulation circuit is deactivated
for the first 20μs. This guarantees that switching of the DMOS itself or charging of small capacitors at
the output (e.g. ESD) is not disturbing the current regulation.
Simplified functional block diagram:
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| TLE6288R | 功能描述:電源開關(guān) IC - 配電 SWITCH ICS RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| TLE6288R_10 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Smart 6 Channel Peak & Hold Switch |
| TLE6288RAUMA2 | 制造商:Infineon Technologies AG 功能描述:IC SW SMART MULTICHAN PDSO36 |
| TLE6288RNT | 制造商:Infineon Technologies AG 功能描述:Power Switch Hi Side/Lo Side 36-Pin DSO |
| TLE6288RXT | 功能描述:電源開關(guān) IC - 配電 Smart 6 Ch Peak/Hold Switch 4.5-5.5V RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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