参数资料
型号: TLE6712
厂商: INFINEON TECHNOLOGIES AG
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO24
封装: PLASTIC, DSO-24
文件页数: 47/48页
文件大小: 386K
代理商: TLE6712
TLE 6712
Company Confidential
8
V 1.61 2001-07-13
The gate of the high-side transistor is supplied via pin
V
CHP. If VCHP is not provided with
an external charge pump voltage, the gates wil be supplied by
V
Boost by a diode.
To protect the integrated squib firing transistors in the event that the junction exceeds
critical temperature, a thermal toggling circuit is provided for each transistor. This feature
prevents catastrophic failures from accidental device overheating. However the total
observed energy of the transistor needs to be limited by determining the maximum swich
on time.
Figure 4
Block Diagram Squib Driver Circuit
SPI
Logic
Latch
t
Low Side
Driver
High Side
Driver
Over Current Limitation
Thermal Shutdown
A
SEN
RI
FEN
V
B oos t
FV12
SQHx
Squib
SQLx
GNDLx
AES02680
MO
V
CHP
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