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參數(shù)資料
| 型號： | TLE6712 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封裝： | PLASTIC, DSO-24 |
| 文件頁數(shù)： | 46/48頁 |
| 文件大小： | 386K |
| 代理商： | TLE6712 |
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TLE 6712
Company Confidential
7
V 1.61 2001-07-13
The transfer of a 16 Bit command word starts with the falling CSN signal. At this time the
CLK signal must be high. The DI signal must be valid during rising edge of the CLK
signal. The transmission ends after the 16th rising edge of CLK and when the CSN signal
becomes high again. The left side of Figure 3 shows a correct transmission of a 16 Bit
command. On the right side you can see a incorrect transmission. CSN signal returns
high too late. A clock failure occurs and all latched data is be disregarded.
Figure 3
Timing of the Serial Peripheral Interface (SPI)
2.3
Squib Drivers
The Dual Firing Airbag IC includes two independent driver circuits. Every driver circuit
consists of a high- and a low-side DMOS switch. Between these switches a squib can
be connected in series.
The two driver circuits are designed as follows. The Drain of the high-side switch is
connected to the Firing Voltage pin FV12 and its source to the output pin squib high- side
x (SQHx (x=1, 2)). The drain of the low-side switch is connected to the input pin squib
low-side x (SQLx (x=1, 2) and the source is connected to the ground pin for the firing loop
(GNDLx (x=1, 2)). This is illustated in Block Diagram Squib Driver Circuit on page 8.
The squib will only be fired if all of the following signals are present correctly: SPI firing
command, RI, FEN, and SEN.
RI, FEN (Firing Enable) and SEN are external inputs which must be HIGH to enable
firing. When activating the low-side transistor the firing current will be sensed and latched
for all two squibs. If the current exceeds the firing current detection level, a bit will be set
and latched. This bit will then be read out at pin MO by the micro controller after the SPI
command firing current detection (see Chapter 3.5 DXXX
H: Channel Selection for
High Current Detection) is sent. If the programed channel has fired, the MO pin has low
output voltage. All the latches will be reset when the special SPI command (FFFF
H or
DXXX
H see Chapter 3) is sent or when the device is reset via external pin RI = low.
RI
CSN
CLK
DI
1
2
3
4
141516
1
16
17
Clock
Failure
MSB
LSB
MSB
AET02609
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| TLE6714G | 功能描述:接口 - 專用 4 Loop Firing IC RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| TLE6714GNTMA1 | 制造商:Infineon Technologies AG 功能描述:Firing Circuit 28-Pin DSO 制造商:Infineon Technologies AG 功能描述:AIRBAG_RESTRAINT_IC - Tape and Reel |
| TLE7181EM | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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