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