LTC2907 Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input

The LTC®2906/LTC2907 are dual supply monitors intended for systems with multiple supply voltages. The dual supply monitors have a common reset output with delay (200ms for the LTC2906 and adjustable using an external capacitor for the LTC2907). These products provide a precise, space-conscious and micropower solution for supply monitoring.

The LTC2906/LTC2907 feature a tight 1.5% threshold accuracy over the whole operating temperature range and glitch immunity to ensure reliable reset operation without false triggering. The open drain RST output state is guaranteed to be in the correct state for V1 and/or VCC down to 1V.

The LTC2906/LTC2907 also feature one adjustable input with a nominal threshold level at 0.5V, another input with three possible input threshold levels, and three supply tolerances for possible margining. These features provide versatility for any kind of system requiring dual supply monitors. Two three-state input pins program the threshold and tolerance level without requiring any external components

产品特点 Features

Monitors Two Inputs Simultaneously
Three Threshold Selections for 5V, 3.3V or 2.5V Supplies
Low Voltage Adjustable Input (0.5V)
Three Supply Tolerances (5%, 7.5%, 10%)
Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature
Internal VCC Auto Select
Power Supply Glitch Immunity
200ms Reset Time Delay (LTC2906 Only)
Adjustable Reset Time Delay (LTC2907 Only)
Open Drain RST Output
Guaranteed RST for V1 >= 1V or VCC >=1V
Low Profile (1mm) SOT-23 (ThinSOT™) and Plastic (3mm x 2mm) DFN Packages

应用

Desktop and Notebook Computers
Handheld Devices
Network Servers
Core, I/O Monitor

典型应用图

参数

LTC2907 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LTC2907CDDB	DFN	8	C	$1.97
LTC2907CDDB#PBF	DFN	8	C	$1.97
LTC2907CDDB#TR	DFN	8	C	$1.97	$1.41
LTC2907CDDB#TRM	DFN	8	C	$1.97	$1.43
LTC2907CDDB#TRMPBF	DFN	8	C	$1.97	$1.43
LTC2907CDDB#TRPBF	DFN	8	C	$1.97	$1.41
LTC2907CTS8	SOT	8	C	$1.97
LTC2907CTS8#PBF	SOT	8	C	$1.97
LTC2907CTS8#TR	SOT	8	C	$1.97	$1.41
LTC2907CTS8#TRM	SOT	8	C	$1.97	$1.43
LTC2907CTS8#TRMPBF	SOT	8	C	$1.97	$1.43
LTC2907CTS8#TRPBF	SOT	8	C	$1.97	$1.41
LTC2907IDDB	DFN	8	I	$2.23
LTC2907IDDB#PBF	DFN	8	I	$2.23
LTC2907IDDB#TR	DFN	8	I	$2.23	$1.56
LTC2907IDDB#TRM	DFN	8	I	$2.23	$1.58
LTC2907IDDB#TRMPBF	DFN	8	I	$2.23	$1.58
LTC2907IDDB#TRPBF	DFN	8	I	$2.23	$1.56
LTC2907ITS8	SOT	8	I	$2.23
LTC2907ITS8#PBF	SOT	8	I	$2.23
LTC2907ITS8#TR	SOT	8	I	$2.23	$1.56
LTC2907ITS8#TRM	SOT	8	I	$2.23	$1.58
LTC2907ITS8#TRMPBF	SOT	8	I	$2.23	$1.58
LTC2907ITS8#TRPBF	SOT	8	I	$2.23	$1.56

LTC2907 数据手册及相关资料下载

数据手册(英文) : LTC2906/LTC2907 - Precision Dual Supply Monitors with One Pin-Selectable Threshold and One Adjustable Input.PDF
可靠性数据 : R413 Reliability Data .PDF
产品选型卡 : High Voltage Surge Stoppers.PDF
产品选型卡 : Voltage Monitors & Supervisors Quick Guide.PDF