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TCM809SENB713 3-Pin Microcontroller Reset Monitors Datasheet PDF Download

Author: Irene
Date: 20 Jan 2022
 61
Microcontroller

Catalog

General Description

Features

Applications

Typical Application Circuit

Applications Information

Pin Configurations

Pin Descriptions

Absolute Maximum Ratings†

Electrical Characteristics

Typical Performance Characteristics

3-Lead Plastic Small Outline Transistor

TCM809SENB713 Datasheet

TCM809SENB713 Manufacturer

Using Warning

TCM809SENB713 FAQ

 

General Description

The TCM809 and TCM810 are cost-effective system supervisor circuits designed to monitor VDD in digital systems; providing a reset signal to the host processor, when necessary. No external components are required.

 

The RESET output  is typically driven active within 65 µsec of VDD falling through the reset voltage threshold. RESET is maintained active for a minimum of 140 msec after VDD rises above the reset threshold, The TCM810 has an active-high RESET output , while the TCM809 has an active-low RESET output, The output of the TCM809/TCM810 is valid down to VDD = 1V. Both devices are available in 3-Pin SC-70 and SOT-23B packages.

 

The TCM809/TCM810 are optimized to reject fast transient glitches on the VDD line. A low supply current of 9 µA (typ., VDD = 3.3V) make these devices suitable for battery-powered applications.

 

Features

  • Precision VDDMonitor for 2.5V, 3.0V, 3.3V, 5.0VNominal System Voltage Supplies
  • 140 msec Minimum RESET Time-Out Period
  • RESET Output to VDD= 1.0V (TCM809)
  • Low Supply Current, 9 µA (typ.)
  • VDDTransient Immunity
  • Small 3-Pin SC-70 and SOT-23B Packages
  • No External Components
  • Push-Pull RESET Output
  • Temperature Ranges:

- Industrial: SC-70 (E): -40 ℃ to +85 ℃

- Extended: SOT-23, SC-70 (V): -40 ℃ to +125 ℃

 

Applications

  • Computers
  • Embedded Systems
  • Battery-powered Equipment
  • Critical Microcontroller Power Supply Monitoring
  • Automotive

 

Typical Application Circuit

Typical Application Circuit

 

Applications Information

1.VDD Transient Rejection

The TCM809/TCM810 provides accurate VDD monitoring and reset timing during power-up, power-down and brown-out/sag conditions. These devices also reject negative-going transients (glitches) on the power supply line. Figure below shows the maximum transient duration vs. maximum negative excursion (overdrive) for glitch rejection. Any combination of duration and overdrive that lies under the curve will not generate a reset signal.

 

VDD Transient Rejection

Maximum Transient Duration vs. Overdrive for Glitch Rejection at +25°C

 

Combinations above the curve are detected as a brown-out or power-down condition. Transient immunity can be improved by adding a capacitor in close proximity to the VDD pin of the TCM809/TCM810.

 

2.`R`E`S`E`T Signal Integrity During Power-Down

The TCM809`R`E`S`E`T output is valid to VDD = 1.0V. Below this voltage the output becomes an "open circuit" and does not sink current. This means CMOS logic inputs to the microcontroller will be floating at an undetermined voltage. Most digital systems are completely shut down well above this voltage. However, in situations where`R`E`S`E`T must be maintained valid to VDD = 0V, a pull-down resistor must be connected from`R`E`S`E`T to ground to discharge stray capacitances and hold the output low (Figure below). This resistor value, though not critical, should be chosen such that it does not appreciably load`R`E`S`E`T under normal operation (100 kΩ will be suitable for most applications). Similarly, a pull-up resistor to VDD is required for the TCM810 to ensure a valid high`R`E`S`E`T for VDD below 1.0V.

 

Signal Integrity During Power-Down

The addition of R1 at the`R`E`S`E`T output of the TCM809 ensures that the`R`E`S`E`T output is valid to VDD = 0V

 

3.Controllers and Processors With Bidirectional I/O Pins

Some microcontrollers have bidirectional reset pins. Depending on the current drive capability of the controller pin, an indeterminate logic level may result if there is a logic conflict. This can be avoided by adding a 4.7 k resistor in series with the output of the TCM809/ TCM810 (Figure below). If there are other components in the system that require a reset signal, they should be buffered so as not to load the reset line. If the other components are required to follow the reset I/O of the microcontroller, the buffer should be connected as shown with the solid line.

 

Controllers and Processors With Bidirectional I O Pins

Interfacing the TCM809 to a Bidirectional RESET I/O

 

Pin Configurations

Pin Configurations

 

Pin Descriptions

Pin Function

NAME FUNCTION
GND Ground
`R`E`S`E`T (TCM809) `R`E`S`E`T push-pull output
RESET (TCM810) RESET push-pull output
VDD Supply voltage (+2.5V, +3.0V,+3.3V, +5.0V).

 

Ground (GND)

Ground terminal.

 

`R`E`S`E`T Output (TCM809)

The `R`E`S`E`T push-pull output remains low while VDD is below the reset voltage threshold, and for 240 msec (140 msec min.) after VDD rises above reset threshold.

 

RESET Output (TCM810)

The RESET push-pull output remains high while VDD is below the reset voltage threshold, and for 240 msec (140 msec min.) after VDD rises above reset threshold.

 

Supply Voltage (VDD)

VDD: +2.5V, +3.0V, +3.3V and +5.0V

 

Absolute Maximum Ratings†

Supply Voltage (VDD to GND): 6.0V

RESET,`R`E`S`E`T: -0.3V to (VDD +0.3V)

Input Current, VDD: 20 mA

Output Current, RESET, `R`E`S`E`T: 20 mA

dV/dt (VDD): 100V/µsec

Operating Temperature Range: -40°C to +125°C

Power Dissipation (TA = 70°C): 

3-Pin SOT-23B (derate 4 mW/°C above +70°C): 320 mW

3-Pin SC-70 (derate 2.17 mW/°C above +70°C): 174 mW

Storage Temperature Range: -65°C to +150°C

Maximum Junction Temperature, TJ: 150°C

 

† Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

 

Electrical Characteristics

VDD = Full Range, TA = Operating Temperature Range, unless otherwise noted. Typical values are at TA = +25°C, VDD = 5V for L/M/J, 3.3V for T/S, 3.0V for R and 2.5V for Z (Note 1).
Parameter Sym Min Typ Max Units Test Conditions
VDD Range   1 5.5 V TA = 0°C to +70°C
  1.2 5.5 TA = – 40°C to +125°C
Supply Current ICC 12 30 µA TCM8xxL/M/J: VDD < 5.5V
9 25 TCM8xxR/S/T/Z: VDD < 3.6V
Reset Threshold (Note 2) VTH 4.56 4.63 4.7 V TCM8xxL: TA = +25°C  TA = – 40°C to +125°C
4.5 4.75
4.31 4.38 4.45 TCM8xxM: TA = +25°C  TA = – 40°C to +125°C
4.25 4.5
3.93 4 4.06 TCM809J: TA = +25°C  TA = – 40°C to +125°C
3.89 4.1
3.04 3.08 3.11 TCM8xxT: TA = +25°C  TA = – 40°C to +125°C
3 3.15
2.89 2.93 2.96 TCM8xxS: TA = +25°C  TA = – 40°C to +125°C
2.85 3
2.59 2.63 2.66 TCM8xxR: TA = +25°C  TA = – 40°C to +125°C
2.55 2.7
2.28 2.32 2.35 TCM8xxZ: TA = +25°C  TA = – 40°C to +125°C
2.25 2.38
Reset Threshold Tempco   30 ppm/°C  
VDD to Reset Delay   65 µsec VDD = VTH to (VTH – 100 mV) (Note 2)
Reset Active Time Out Period   140 320 560 msec  
RESET Output Voltage Low (TCM809) VOL 0.3 V TCM809R/S/T/Z: VDD = VTH min, ISINK  = 1.2 mA
0.4 TCM809L/M/J: VDD = VTH min, ISINK  = 3.2 mA
0.3 VDD > 1.0V, ISINK = 50 µA
RESET Output Voltage High (TCM809) VOH 0.8 VDD V TCM809R/S/T/Z: VDD > VTH max, ISOURCE = 500 µA
VDD – 1.5 TCM809L/M/J: VDD > VTH max, ISOURCE = 800 µA
RESET Output Voltage Low (TCM810) VOL 0.3 V TCM810R/S/T/Z:VDD = VTH max, ISINK = 1.2 mA
0.4 TCM810L/M: VDD = VTH max, ISINK = 3.2 mA
RESET Output Voltage High (TCM810) VOH 0.8 VDD V 1.8 < VDD < VTH min, ISOURCE = 150 µA

Note: 

1.Production testing done at TA = +25°C, overtemperaturelimits ensured by QC screen.

2.`R`E`S`E`T output for TCM809, RESET output for TCM810.

 

Typical Performance Characteristics

Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range.

 

Supply Current vs. Temperature

Supply Current vs. Temperature

 

 

Power-up Reset Time Out vs. Temperature

Power-up Reset Time Out vs. Temperature

 

 

Normalized Reset Threshold vs. Temperature

Normalized Reset Threshold vs. Temperature

 

3-Lead Plastic Small Outline Transistor

3-Lead Plastic Small Outline Transistor

 

Units INCHES* MILLIMETERS
Dimension Limits MIN NOM MAX MIN NOM MAX
Number of Pins n   3     3  
Pitch p   0.038     0.96  
Outside lead pitch (basic) p1   0.076     1.92  
Overall Height A 0.035 0.04 0.044 0.89 1.01 1.12
Molded Package Thickness A2 0.035 0.037 0.04 0.88 0.95 1.02
Standoff § A1 0 0.002 0.004 0.01 0.06 0.1
Overall Width E 0.083 0.093 0.104 2.1 2.37 2.64
Molded Package Width E1 0.047 0.051 0.055 1.2 1.3 1.4
Overall Length D 0.11 0.115 0.12 2.8 2.92 3.04
Foot Length L 0.014 0.018 0.022 0.35 0.45 0.55
Foot Angle Φ 0 5 10 0 5 10
Lead Thickness c 0.004 0.006 0.007 0.09 0.14 0.18
Lead Width B 0.015 0.017 0.02 0.37 0.44 0.51
Mold Draft Angle Top α 0 5 10 0 5 10
Mold Draft Angle Bottom β 0 5 10 0 5 10

* Controlling Parameter

§ Significant Characteristic

 

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side.

JEDEC Equivalent: TO-236

Drawing No. C04-104

 

TCM809SENB713 Datasheet

You can download the datasheet from the link given below:

TCM809SENB713 Datasheet

 

TCM809SENB713 Manufacturer

Microchip Technology Inc. is a publicly-listed American corporation that manufactures microcontroller, mixed-signal, analog and Flash-IP integrated circuits. Its products include microcontrollers (PIC, dsPIC, AVR and SAM), Serial EEPROM devices, Serial SRAM devices, embedded security devices, radio frequency (RF) devices, thermal, power and battery management analog devices, as well as linear, interface and wireless products.

 

Using Warning

Note: Please check their parameters and pin configuration before replacing them in your circuit.

 

TCM809SENB713 FAQ

What is the Reset Monitor?

RESET Monitors are continous monitoring monitors that can be used for RESET Projects. The RESET Monitors Directory currently only includes monitors for the RESET Air Standard.

 

What happens when you reset a monitor?

A factory reset does not erase the monitor's language setting. After you perform a factory reset, you will need to re-enter your custom settings, such as contrast, brightness and image ratio.

 

What is microcontroller and how it works?

Microcontrollers are embedded inside devices to control the actions and features of a product. Hence, they can also be referred to as embedded controllers. Microcontrollers can take inputs from the device they controlling and retain control by sending the device signals to different parts of the device.

 

What is the main function of microcontroller?

Microcontroller is a compressed micro computer manufactured to control the functions of embedded systems in office machines, robots, home appliances, motor vehicles, and a number of other gadgets. A microcontroller is comprises components like - memory, peripherals and most importantly a processor.

 

What is inside microcontroller?

A microcontroller can be seen as a small computer, and this is because of the essential components inside of it; the Central Processing Unit (CPU), the Random-Access Memory (RAM), the Flash Memory, the Serial Bus Interface, the Input/Output Ports (I/O Ports), and in many cases, the Electrical Erasable Programmable Read .

 

Ordering & Quality

Photo Mfr. Part # Company Description Package PDF Qty Pricing
(USD)
TCM809SENB713 TCM809SENB713 Company:Microchip Technology Remark:IC SUPERVISOR 1 CHANNEL SOT23-3 Package:TO-236-3, SC-59, SOT-23-3
DataSheet
In Stock:On Order
Inquiry
Price:
3000+: $0.26000
Inquiry

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