TPS3809 Description
The TPS3809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems. The newer TLV809E device is an alternative with the same pins, functions and electrical parameters.
During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the
threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, td(typ) = 200 ms, starts after VDD has risen above the threshold voltage VIT. When the supply voltage drops below the threshold voltage VIT, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed sense-threshold voltage VIT set by an internal voltage divider.
The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23. The TPS3809 devices are characterized for operation over a temperature range of –40°C to 85°C.
TPS3809L30DBVR Features
• 3-pin SOT-23 package
• Supply current of 9 μA (typical)
• Precision supply voltage monitor 2.5 V, 3 V, 3.3 V, 5 V
• Pin-for-pin compatible with MAX 809
• Temperature range: –40°C to +85°C
TPS3809L30DBVR Applications
• Factory automation
• Wireless speakers
• Motor drives
• Servers
• Appliances
• Electricity meters
• Building automation
TPS3809L30DBVR Typical Application
TPS3809L30DBVR Pin Configuration
TPS3809L30DBVR Product Parameter
|
Manufacturer |
Texas |
Manufacturer’s Part |
TPS3809L30DBVR |
|
Categories |
Integrated Circuits (ICs) |
Sub-Categories |
PMIC - Supervisors |
|
Part Status |
Active |
Type |
Simple Reset/Power-On Reset |
|
Number of Voltages Monitored |
1 |
Output |
Push-Pull, Totem Pole |
|
Reset |
Active Low |
Reset Timeout |
120ms Minimum |
|
Operating Temperature |
-40°C~85°C TA |
Mounting Type |
Surface Mount |
|
Package / Case |
TO-236-3, SC-59, SOT-23-3 |
Number of Pins |
3 |
|
Packaging |
Tape & Reel (TR) |
Number of Terminations |
3 |
|
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
Subcategory |
Power Management Circuits |
|
Max Power Dissipation |
437mW |
Terminal Position |
DUAL |
|
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
|
Number of Functions |
1 |
Supply Voltage |
3V |
|
Terminal Pitch |
0.95mm |
Base Part Number |
TPS3809L30 |
|
Pin Count |
3 |
Number of Channels |
1 |
|
Max Supply Voltage |
6V |
Min Supply Voltage |
2V |
|
Operating Supply Current |
9μA |
Power Dissipation |
437mW |
|
Max Supply Current |
25μA |
Adjustable Threshold |
NO |
|
Quiescent Current |
9μA |
Height |
1.45mm |
|
Length |
2.9mm |
Width |
1.6mm |
|
Thickness |
1.2mm |
Lead Free |
Lead Free |
|
Factory Lead Time |
6 Weeks |
Mount |
Surface Mount |
|
Pbfree Code |
yes |
Additional Feature |
RESET THRESHOLD VOLTAGE IS 2.64V |
|
Min Reset Threshold Voltage |
2.58V |
Max Reset Threshold Voltage |
2.7V |
|
Threshold Voltage |
+2.64V |
Undervoltage Threshold |
2.64V |
|
Overvoltage Threshold |
2.7V |
Nominal Supply Current |
25μA |
|
Lifecycle Status |
ACTIVE (Last Updated: 6 days ago) |
Operating Supply Voltage |
3V |
|
Radiation Hardening |
No |
|
|
TPS3809L30DBVR 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.
