STM6905 _ ST 代理商WOSENDONGLI 代理意法STM6905

STM6905 超低电压监控,具有按钮复位

The STM6905 supervisor is a low voltage/low supply current processor supervisor, designed to monitor up to five system power supply voltages. This device is targeted at applications such as set-top boxes (STBs), portable, battery-powered systems, networking and communication systems.

The device supports a push-button type manual reset input (MR). Two of the five supply monitors (VCC and V2IN) have fixed (customer-selectable, factory-trimmed) thresholds (VRST1 and VRST2). The other three voltage monitor inputs (V3IN, V4IN and V5IN) are monitored using externally adjustable threshold (600 mV internal reference) to meet specific level requirements.

If any of the five monitored voltages drops below its factory-trimmed or adjustable thresholds, or if the MR is asserted to logic low, the reset output RST is asserted (driven low). Once asserted, RST is maintained Low for a minimum delay period (trec) after ALL monitored supplies rise above their respective thresholds and MR returns to High. Reset output logic state is valid for VCC greater than 0.8 V.

The STM6905 is available in a standard 8-lead MSOP (TSSOP) package.

STM6905 订购型号

Ordering Model	Package	Active Output Level	Operating Temperature	Operating Temperature
			min	max
			°C	°C
STM6905PWEDS6F	MSOP/TSSOP 8 BODY3.00 PITCH0.65	Active Low	-40	85
STM6905SFEDS6F	MSOP/TSSOP 8 BODY3.00 PITCH0.65	Active Low	-40	85
STM6905SYEDS6F	MSOP/TSSOP 8 BODY3.00 PITCH0.65	Active Low	-40	85
STM6905TGEDS6F	MSOP/TSSOP 8 BODY3.00 PITCH0.65	Active Low	-40	85
STM6905TWEDS6F	MSOP/TSSOP 8 BODY3.00 PITCH0.65	Active Low	-40	85
STM6905TZEDS6F	MSOP/TSSOP 8 BODY3.00 PITCH0.65	Active Low	-40	85

STM6905 特性:

Quad voltage monitoring
Accurate ±1.8% across temperature voltage threshold (±1% at 25°C)
Primary supply (VCC) monitor. Fixed (factory - programmed) reset thresholds: 3.078 V to 2.188 V
Second fixed (V2IN) monitor. Fixed (factoryprogrammed) reset thresholds: 2.333 V to 1.110 V
Two additional adjustable supply monitor inputs (externally adjustable)
0.6V internal reference
RST output (open drain)
Output guaranteed for VCC ≥ 0.8 V
Reset delay time (trec) pin selectable
Manual reset input (MR)
Low supply current of 12 μA (typ)
Power supply voltage 0.8 V to 5.5 V
RoHS compliant (green package)
8-pin MSOP/TSSOP
Operating temperature: –40°C to 85°C (industrial grade)

STM6905 超低电压监控,具有按钮复位

STM6905 订购型号

STM6905 特性:

STM6905 技术支持与电子电路设计开发资源下载