Product Details
The LTC2938/LTC2939 are configurable supply monitors for systems with up to four or six supply voltages that need watchdog supervision. One of sixteen preset or adjustable voltage monitor combinations can be selected using an external resistive divider connected to the program input. The preset voltage thresholds are accurate to ±1.5% over temperature. The LTC2938 and LTC2939 also feature adjustable inputs with a 0.5V nominal threshold.
The reset and watchdog timeout periods are adjustable using external capacitors. Tight voltage threshold accuracy and glitch immunity ensure reliable reset operation without false triggering. The RST output is guaranteed to be in the correct state for VCC down to 1V. Each status output has a weak internal pull-up and may be externally pulled up to a user-defined voltage.
The 80μA supply current makes the LTC2938 and LTC2939 ideal for power conscious systems. The LTC2939 monitors up to six supplies and the LTC2938 monitors up to four supplies.
Applications
Power Supply Controller Six Power Supply Monitor 16-MSOP
Richardson RFPD, an Arrow Company, is a specialized electronic component distributor providing design engineers with deep technical expertise and localized global design support for the latest new products from the world's leading suppliers of RF, Wireless, Energy and Power Technologies.
Supervisory Circuits Configurable Six Supply Monitor with Watchdog Timer
Analog Devices, Inc. | Quarktwin Technology Ltd. | Richardson RFPD | VAST STOCK CO., LIMITED | |
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Product Category | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips | Supervisory Circuits and Battery Monitor Chips |
Product Number | LTC2939IMS#TRPBF | LTC2939IMS#TRPBF | LTC2939IMSTRPBF | LTC2939IMS#TRPBF |
Product Name | Configurable 6-Supply Monitors with Watchdog Timer | Power Supply Controllers, Monitors | Power Management IC | Supervisory Circuits |
Number of Supplies | 4; 6 | |||
Features | Watchdog Timer | |||
Type | MSOP | SOP; 16-TFSOP (0.118\", 3.00mm Width) | ||
Pins | 16 |