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參數(shù)資料
| 型號： | TLE6236G |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Smart Octal Low-Side Switch |
| 中文描述： | 智能八路低端開關(guān) |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 526K |
| 代理商： | TLE6236G |
Datasheet TLE 6236 G
V2.1
Page
26.Aug. 2002
8
Power Transistor Protection Functions
1)
Each of the eight output stages has its own zener clamp, which causes a voltage limitation at
the power transistor when solenoid loads are switched off. The outputs are provided with a
current limitation set to a minimum of 500 mA. The continuous current for each channel is
200 mA (all channels ON).
Each output is protected by embedded protection functions. In the event of an overload or
short to supply, the current is internally limited and a fault bit is generated for each output indi-
vidually (early warning). If this operation leads to an overtemperature condition, a second
protection level (about 170 °C) will change the output into a low duty cycle PWM (channel se-
lective thermal shutdown with restart) to prevent critical chip temperatures.
SPI Signal Description
CS
- Chip Select. The system microcontroller selects the TLE 6236 G by means of the
CS
pin. Whenever the pin is in a logic low state, data can be transferred from the μC and vice
versa.
CS
High to Low transition:
- diagnostic status information is transferred from the
power
outputs into the shift register.
- serial input data can be clocked in from then on
- SO changes from high impedance state to logic high or low
state corresponding to the SO bits
CS
Low to High transition:
- transfer of SI bits from shift register into output buffers
- reset of diagnosis register
To avoid any false clocking the serial clock input pin SCLK should be logic low state during
high to low transition of
CS
. When
CS
is in a logic high state, any signals at the SCLK and SI
pins are ignored and SO is forced into a high impedance state.
The device will react to the CS
only if one correct SCLK
signal has been sent.
SCLK
- Serial Clock. The system clock pin clocks the internal shift register of the TLE 6236 G.
The serial input (SI) accepts data into the input shift register on the falling edge of SCLK while
the serial output (SO) shifts diagnostic information out of the shift register on the rising edge of
serial clock. It is essential that the SCLK pin is in a logic low state whenever chip select
CS
makes any transition.
SI
- Serial Input. Serial data bits are shifted in at this pin, the most significant bit first. SI infor-
mation is read in on the falling edge of SCLK. Input data is latched in the shift register and
then transferred to the control buffer of the output stages.
A logic high bit at this pin (within the data byte) will switch the corresponding output on.
1)
The integrated protection functions prevent an IC destruction under fault conditions and may not be used in normal operation or perma-
nently
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| TLE6236GNTMA1 | 制造商:Infineon Technologies AG 功能描述:Power Switch Lo Side 0.2A 28-Pin DSO 制造商:Infineon Technologies AG 功能描述:MC RELAY + LED - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC SW SMART OCTAL LOWSIDE PDSO28 |
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| TLE6237G | 功能描述:電源開關(guān) IC - 配電 MC RELAY + LED RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（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 |
| TLE6237GNTMA1 | 制造商:Infineon Technologies AG 功能描述:USB POWER T/R 制造商:Infineon Technologies AG 功能描述:MC RELAY + LED - Tape and Reel |
| TLE6240GP | 功能描述:電源開關(guān) IC - 配電 MULTI CHANNEL SWITCH RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（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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