Le blog de l'entreprise Mingjiada Supply ADI LTC2917 And LTC2918 Series Low Voltage Single-Supply Monitors

Mingjiada Supply ADI LTC2917 And LTC2918 Series Low Voltage Single-Supply Monitors

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of the LTC2917 and LTC2918 low-voltage single-supply monitors from ADI (Analog Devices). These two devices provide real-time monitoring of the system’s main power supply; when the monitored voltage falls below a set threshold, they output a reset signal to keep microprocessors, DSPs, FPGAs or digital logic circuits in a safe reset state; Once the supply voltage returns to the normal range and a preset delay has elapsed, the reset signal is released and the system resumes normal operation.

Product Overview:
[ADI] The LTC2917 and LTC2918 are low-voltage single-supply monitors featuring selectable thresholds and an adjustable watchdog timer. These devices operate from a supply voltage of 1.5V to 5.5V and consume only 30μA of quiescent current. Two tri-state inputs are used to select one of nine internal threshold settings without the need for external resistors. For the LTC2917, an additional three-state input determines the tolerance (-5%, -10%, -15%). The tolerance of the LTC2918 is fixed at -5%. Threshold accuracy is guaranteed to be ±1.5% over the entire operating temperature range. Interference filtering ensures reliable reset operation without false triggering.

Key Features:
9 selectable supply voltages
12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V, positive adjustable (0.5V)
Three selectable tolerances
-5%, -10%, -15% (LTC2917)
Manual reset input (LTC2918)
Operating supply voltage from 1.5V to 5.5V
Adjustable watchdog timeout
Window-based watchdog timeout for high-reliability applications (LTC2917-B, LTC2918-B)
6.2V parallel regulator for high-voltage operation
Operational performance guaranteed at temperatures up to 125°C
Guaranteed threshold accuracy: ±1.5%
Low quiescent current: 30 μA (typical)
Immunity to power supply interference
Guaranteed RST (for VCC ≥ 0.8 V)
10-pin MSOP and (3 mm × 2 mm) DFN packages

Mingjiada Electronics is a long-term supplier of [ADI] LTC2917 and LTC2918 voltage monitors, including but not limited to the following:
LTC2917CDDB-A1
LTC2917CDDB-B1
LTC2917CMS-A1
LTC2917CMS-B1
LTC2917HDDB-A1
LTC2917HDDB-B1
LTC2917HMS-A1
LTC2917HMS-B1
LTC2917IDDB-B1
LTC2917IDDB-A1
LTC2917IMS-A1
LTC2917IMS-B1
LTC2918CDDB-A1
LTC2918CDDB-B1
LTC2918CMS-A1
LTC2918CMS-B1
LTC2918HDDB-A1
LTC2918HDDB-B1
LTC2918HMS-A1
LTC2918HMS-B1
LTC2918IDDB-A1
LTC2918IDDB-B1
LTC2918IMS-A1
LTC2918IMS-B1
The above devices are suitable for use in handheld devices, mobile phone base stations, automotive control systems, network servers, optical network systems and other equipment.

Mingjiada Electronics provides long-term supply support for the [ADI] LTC2917 and LTC2918. For specific model, stock and pricing information, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.