UCC2946-Q1 具有看门狗定时器的汽车类微处理器监控器

	UCC2946-Q1
No. of Supervisors	1
Reset Threshold Accuracy(%)	2
Time Delay(ms)	Prog
IDD(Typ)(uA)	12
Pin/Package	8TSSOP
Rating	Automotive

UCC2946-Q1 描述

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

UCC2946-Q1 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-uA Maximum Input Current
Reset Valid Down to 1 V

UCC2946-Q1 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
UCC2946TPWRQ1	ACTIVE	-40 to 105	1.60 \| 1ku	TSSOP (PW) \| 8	2000	3946

UCC2946-Q1 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
UCC2946TPWRQ1	Pb-Free (RoHS)	CU NIPDAU	Level-2-260C-1 YEAR	UCC2946TPWRQ1	UCC2946TPWRQ1