CAT811TTBI-T3 ON Semiconductor, CAT811TTBI-T3 Datasheet

IC SUPERVISOR MPU 3.08V SOT143-4

CAT811TTBI-T3

Manufacturer Part Number
CAT811TTBI-T3
Description
IC SUPERVISOR MPU 3.08V SOT143-4
Manufacturer
ON Semiconductor
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of CAT811TTBI-T3

Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
3.08V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-143, SOT-143B, TO-253AA
Monitored Voltage
2.5 V or 3 V or 3.3 V or 5 V
Undervoltage Threshold
3.08 V
Overvoltage Threshold
3.11 V
Manual Reset
Resettable
Watchdog
No
Battery Backup Switching
No
Power-up Reset Delay (typ)
240 ms (Typ)
Supply Voltage (max)
5 V, 3.3 V, 3 V, 2.5 V
Supply Voltage (min)
- 0.3 V
Supply Current (typ)
8 uA
Maximum Power Dissipation
320 mW
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 85 C
Chip Enable Signals
No
Internal Hysteresis
No
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Output Type
Push-Pull
Power Fail Detection
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
811TTBI-T3
CAT811TTBI-T3TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CAT811TTBI-T3
Manufacturer:
ON Semiconductor
Quantity:
2
Part Number:
CAT811TTBI-T3
Manufacturer:
ON/安森美
Quantity:
20 000
4-Pin Microprocessor Power Supply Supervisors
with Manual Reset
FEATURES
 Precision monitoring of
 Manual reset input
 Offered in two output configurations:
 CAT811: Active LOW reset
 CAT812: Active HIGH reset
 Direct replacements for the MAX811 and
 Reset valid down to V
 6µA power supply current
 Power supply transient immunity
 Available in SOT-143 packages with Sn or
 Industrial temperature range: -40ºC to +85ºC
APPLICATION
 Computers, Servers, Laptops
 Cable modems
 Wireless communications
 Embedded control systems
 White goods
 Power meters
 Intelligent instruments
 PDAs and handheld equipment
THRESHOLD SUFFIX SELECTOR
DESCRIPTION
© 2010 SCILLC. All rights reserved.
Characteristics subject to change without notice
Nominal Threshold
+5.0 V (± 5%, ± 10%, ± 20%),
+3.3 V (± 5%, ± 10%),
+3.0 V (± 10%) and
+2.5 V (± 5%) power supplies
MAX812 in applications operating over the
industrial temperature range
NiPdAu Green Lead finishes.
Voltage
4.63V
4.38V
4.00V
3.08V
2.93V
2.63V
2.32V
Threshold Suffix
CC
Designation
= 1.0V
M
T
S
R
Z
L
J
1
DESCRIPTION
The CAT811 and CAT812 are microprocessor supervi-
sory circuits that monitor power supplies. The CAT811
and CAT812 are direct replacements for the MAX811
and MAX812 in applications operating over the industrial
temperature range; both have a manual reset input.
These devices generate a reset signal, which is
asserted while the power supply voltage is below a
preset threshold level and for at least 140ms after the
power supply level has risen above that level. The
underlying floating gate technology, AE
Catalyst Semiconductor, makes it possible to offer any
custom
standard threshold levels are offered to support
+5.0V, +3.3V, +3.0V and +2.5V systems.
The CAT811 features a RESET push-pull output
(active LOW) and the CAT812 features a RESET
push-pull output (active HIGH).
Fast transients on the power supply are ignored and
the output is guaranteed to be in the correct state at
Vcc levels as low as 1.0 V.
The CAT811/812 are fully specified over the industrial
temperature range (-40°C to 85°C) and are available
in a compact 4-pin SOT-143 package.
PIN CONFIGURATION
For Ordering Information details, see page 10.
reset
¯¯¯¯¯¯
RESET
GND
threshold
1
2
CAT811, CAT812
CAT811
CAT812
value.
4 V
3
¯¯¯
MR
Seven
Doc. No. MD-3005 Rev. V
CC
2(TM)
used by
industry

Related parts for CAT811TTBI-T3

CAT811TTBI-T3 Summary of contents

Page 1

Microprocessor Power Supply Supervisors with Manual Reset FEATURES  Precision monitoring of +5.0 V (± 5%, ± 10%, ± 20%), +3.3 V (± 5%, ± 10%), +3.0 V (± 10%) and +2.5 V (± 5%) power supplies  Manual ...

Page 2

CAT811, CAT812 PIN DESCRIPTION Pin Number Name CAT811 CAT812 1 1 GND ¯¯¯¯¯¯ 2 — RESET — 2 RESET ¯¯¯ BLOCK DIAGRAM MR V TOLERANCE TOLERANCE CC Doc. No. MD-3005 ...

Page 3

ABSOLUTE MAXIMUM RATINGS Parameters Any pin with respect to ground Input Current ¯¯¯¯¯¯ Output Current RESET, RESET Rate of Raise Continuous Power Dissipations Derate 4mW/ºC above +70ºC (SOT-143) Storage Temperature Operating Ambient Temperature Lead Soldering (10 ...

Page 4

CAT811, CAT812 ELECTRICAL OPERATING CHARACTERISTICS (continued Full range -40°C to +85°C unless otherwise noted. Typical values L/M/J versions 3.3V for the T/S versions Parameter Symbol Reset Threshold Tempco ...

Page 5

TYPICAL OPERATING CHARACTERISTICS V = Full range -40°C to +85°C unless otherwise noted. Typical values L/M/J versions 3.3V for the T/S versions POWER-UP RESET TIMEOUT VS. TEMPERATURE 260 240 V ...

Page 6

CAT811, CAT812 DETAILED DESCRIPTION RESET TIMING The reset signal is asserted LOW for the CAT811 and HIGH for the CAT812 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 140ms after the ...

Page 7

VALID RESET WITH V UNDER 1.0V CC ¯¯¯¯¯¯ pin known To ensure that the CAT811 RESET state when V is under 1.0V, a 100kΩ pull-down CC ¯¯¯¯¯¯ resistor between RESET pin recommended; the value is not critical. ...

Page 8

CAT811, CAT812 OTHER SUPERVISORY PRODUCTS Function CAT1161/3 With 16k Bit Serial EEPROM Memory Watchdog Timer Manual Reset Input Active Low Reset Active High Reset Dual Polarity Reset Outputs 8-pin DIP Package and SOIC Doc. No. MD-3005 Rev. V CAT1162 CAT809 ...

Page 9

PACKAGE OUTLINE DRAWING (1) SOT-143 4-Lead (TB TOP VIEW b1 SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC satndard TO-253. © 2010 SCILLC. All rights reserved. Characteristics subject to ...

Page 10

... The standard lead finish is NiPdAu. Contact factory for other package availability. (3) This device used in the above example is a CAT811STBI-GT10 (SOT-143 4-Lead, Push-Pull/Active Low Output, trip level of 2.85V to 3.00V, NiPdAu, Tape & Reel, 10,000/Reel) (4) For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. Doc. No. MD-3005 Rev. V (1) ...

Page 11

... Add Block Diagrams 18-Apr-08 S Updated Package Outline Drawing Update Example of Ordering Information 5-Nov-08 T Change logo and fine print to ON Semiconductor 19-May-10 U Update Electrical Operating Characteristics 20-July-10 V Update Figure 2 are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to ON Semiconductor and any products herein ...

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