A supervisor is a measuring instrument that monitors voltage. It can not only monitors the microcontroller's voltage supply for proper operation, but it can also be used as a leakage current detector.
TLC7725QPWR Description
The PMIC TLC7725QPWR is a component manufactured by Texas Instruments. It is a low-power voltage supervisor designed to monitor power supplies and reset microcontrollers and other digital devices when necessary. The device has several features, including an adjustable time delay, a reset input, and a manual reset option. It is commonly used in applications that require reliable power supply monitoring, such as automotive systems, industrial controls, and battery-powered devices.
The TLC7725QPWR, a type of TLC77xx family of micropower supply voltage supervisors provide reset control, primarily in microcomputer and microprocessor systems.
During power-on, RESET is asserted when VDD reaches 1 V. After minimum VDD (≥ 2 V) is established, the circuit monitors SENSE voltage and keeps the reset outputs active as long as SENSE voltage (VI(SENSE)) remains below the threshold voltage. An internal timer delays return of the output to the inactive state to ensure proper system reset. The delay time, td, is determined by an external capacitor:
td = 2.1 × 104 × CT (CT is in farads/td is in seconds)
TLC7725QPWR Logic Symbol
TLC7725QPWR Features
Power-On Reset Generator
Automatic Reset Generation After Voltage Drop
Precision Voltage Sensor
Temperature-Compensated Voltage Reference
Programmable Delay Time by External Capacitor
Supply Voltage Range . . . 2 V to 6 V
Defined RESET Output from VDD ≥ 1 V
Power-Down Control Support for Static RAM with Battery Backup
Maximum Supply Current of 16 µA
Power Saving Totem-Pole Outputs
Temperature Range . . . Up to –55°C to 125°C
TLC7725QPWR Functional Block Diagram
TLC7725QPWR Timing Diagram
TLC7725QPWR Package Material Information
TLC7725QPWR Product Parameter
|
Manufacturer |
Texas |
Manufacturer's Part |
TLC7725QPWR |
|
Categories |
Integrated Circuits (ICs) |
Sub-Categories |
PMIC - Supervisors |
|
Series |
- |
Part Status |
Active |
|
Type |
Simple Reset/Power-On Reset |
Number of Voltages |
1 |
|
Output |
Push-Pull, Totem Pole |
Reset |
Active High/Active Low |
|
Reset Timeout |
1.1ms Minimum |
Voltage - Threshold |
2.25V |
|
Operating Temperature |
-40°C ~ 125°C (TA) |
Mounting Type |
Surface Mount |
|
Package / Case |
8-TSSOP (0.173", 4.40mm Width) |
Supplier Device Package |
8-TSSOP |
TLC7725QPWR Manufacturer
Texas Instruments is a semiconductor multinational company in Texas, USA. It is famous for developing, manufacturing, and selling semiconductor and computer technology. It is mainly engaged in innovative digital signal processing and analog circuits. In addition to the semiconductor business, it also provides solutions including sensing and control, educational products and digital light source processing. Texas Instruments (TI) is headquartered in Dallas, Texas, USA, and has manufacturing, design or sales organizations in more than 25 countries.
