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UCC2946-Q1的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:监控器和复位 IC
  • 功能描述:具有看门狗计时器的汽车类 2.1V 至 5.5V 微处理器监控器
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UCC2946-Q1的产品详情:

The UCC2946 is designed to provide accurate microprocessor supervision, including reset and watchdog functions. During power up, the device asserts a reset signal RES with VDD as low as 1 V. The reset signal remains asserted until the VDD voltage rises and remains above the reset threshold for the reset period. Both reset threshold and reset period are programmable by the user.

The UCC2946 is also resistant to glitches on the VDD line. Once RES has been deasserted, any drops below the threshold voltage need to be of certain time duration and voltage magnitude to generate a reset signal. These values are shown in. An I/O line of the microprocessor may be tied to the watchdog input (WDI) for watchdog functions. If the I/O line is not toggled within a set watchdog period, programmable by the user, WDO is asserted. The watchdog function is disabled during reset conditions.

The UCC2946 is available in 8-pin TSSOP (PW) package to optimize board space.

UCC2946-Q1的优势和特性:
  • Qualified for Automotive Applications
  • Fully Programmable Reset Threshold
  • Fully Programmable Reset Period
  • Fully Programmable Watchdog Period
  • 2% Accurate Reset Threshold
  • Input Voltage Down to 2 V
  • Input 18-μA Maximum Input Current
  • Reset Valid Down to 1 V

UCC2946-Q1的参数(英文):
  • Number of supplies monitored
  • 1
  • Threshold voltage 1 (Typ) (V)
  • Adjustable
  • Features
  • Watchdog timer
  • Reset threshold accuracy (%)
  • 2
  • Output driver type/reset output
  • Active-low, Push-pull
  • Time delay (ms)
  • Programmable
  • Rating
  • Automotive
  • Watchdog timer WDI (sec)
  • Programmable
  • Operating temperature range (C)
  • -40 to 105
UCC2946-Q1具体的完整产品型号参数及价格(美元):

UCC2946-Q1的完整型号有:UCC2946TPWRQ1,以下是这些产品的关键参数及官网采购报价:

UCC2946TPWRQ1,工作温度:-40 to 105,封装:TSSOP (PW)-8,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网UCC2946TPWRQ1的批量USD价格:2.659(1000+)

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UCC2946-Q1的评估套件:

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