STM1001LWX6F STMicroelectronics, STM1001LWX6F Datasheet

IC MPU RESET CIRCUIT 4.63V SOT23

STM1001LWX6F

Manufacturer Part Number
STM1001LWX6F
Description
IC MPU RESET CIRCUIT 4.63V SOT23
Manufacturer
STMicroelectronics
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of STM1001LWX6F

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
140 ms Minimum
Voltage - Threshold
4.63V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3
Monitored Voltage
3 V, 3.3 V, 5 V
Output Type
Active Low, Open Drain
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.2 V
Supply Current (typ)
15 uA
Maximum Power Dissipation
320 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Number Of Elements
1
Monitored Voltage 1 (typ)
3/3.3/5V
Threshold Voltage 1 (max)
4.7V
Watchdog Timer
No
Chip Enable Signals
No
Reset Active Time
280ms
Package Type
SOT-23
Operating Supply Voltage (min)
1.2V
Operating Supply Voltage (max)
5.5V
Reset Threshold Voltage (max)
4.7V
Reset Threshold Voltage (min)
4.56V
Family Name
STM1001
Power Dissipation
320mW
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
3
Supply Current
0.015mA
Undervoltage Threshold
4.56 V
Overvoltage Threshold
4.7 V
Power-up Reset Delay (typ)
280 ms
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4797-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STM1001LWX6F
Manufacturer:
ST
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Part Number:
STM1001LWX6F
Manufacturer:
ST
Quantity:
20 000
Features
February 2010
Precision monitoring of 3 V, 3.3 V, and 5 V
supply voltages
Open drain RST output
30 ms or 140 ms reset pulse width (min)
Low supply current - 6 µA (typ)
Guaranteed RST assertion down to V
Operating temperature:
– –40 °C to 85 °C (industrial grade)
Lead-free, small SOT23 package
CC
= 1.0 V
Doc ID 10373 Rev 6
SOT23-3 (WX)
Reset circuit
STM1001
www.st.com
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STM1001LWX6F Summary of contents

Page 1

Features ■ Precision monitoring 3.3 V, and 5 V supply voltages ■ Open drain RST output ■ 140 ms reset pulse width (min) ■ Low supply current - 6 µA (typ) ■ Guaranteed RST ...

Page 2

Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

STM1001 List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

List of figures List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 5

STM1001 1 Description The STM1001 microprocessor reset circuit is a low-power supervisory device used to monitor power supplies. It performs a single function: asserting a reset signal whenever the V supply voltage drops below a preset value and keeping it ...

Page 6

Description Figure 3. Block diagram 1. Open drain Figure 4. Hardware hookup 1. RST output requires pull-up resistor. 6/ COMPARE RST (1) STM1001 (1) RST V SS Doc ID 10373 Rev 6 t ...

Page 7

STM1001 2 Operation 2.1 Reset output The STM1001 microprocessor reset circuit asserts a reset signal to the MCU whenever V goes below the reset threshold (V 70 °C). During power-up, once V the reset time-out period drops ...

Page 8

Typical operating characteristics 3 Typical operating characteristics Note: Typical values are at T and V = 3.0 V for R versions. CC Figure 5. Supply current vs. temperature, L/M/R/S/T (no load) 8.0 6.0 4.0 2.0 0.0 Figure 6. Power-down reset ...

Page 9

STM1001 Figure 7. Power-down reset delay vs. temperature - V 100.00 80.00 60.00 40.00 20.00 0.00 Figure 8. Power-up t 250.00 240.00 230.00 220.00 210.00 200.00 Note: Valid for t = 210 ms (typ). rec –40 – Temperature ...

Page 10

Typical operating characteristics Figure 9. Normalized reset threshold vs. temperature Figure 10. Max transient duration not causing reset pulse vs. reset comparator overdrive 10/18 1.003 1.002 1.001 1.000 0.999 0.998 0.997 0.996 0.995 0.994 0.993 –40 – Temperature ...

Page 11

... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 2. ...

Page 12

DC and AC parameters 5 DC and AC parameters This section summarizes the operating measurement conditions, and the DC and AC characteristics of the device. The parameters in the DC and AC characteristics tables that follow, are derived from tests ...

Page 13

STM1001 Table 4. DC and AC characteristics Sym Description V Operating voltage supply current CC CC Open drain reset output I LO leakage current V RST output low voltage OL V RST output low voltage OL RESET ...

Page 14

Package mechanical data 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available ...

Page 15

STM1001 7 Part numbering Table 6. Ordering information scheme Example: Device type STM1001 Reset threshold voltage 4. 4.75 V RST 4. 4.50 V RST ...

Page 16

... Part numbering Table 7. Marking description Part number STM1001LWX6F STM1001MWX6F STM1001TWX6F STM1001SWX6F STM1001RWX6F STM1001SBWX6F 1. Lowercase “x” indicates date code. 16/18 Reset threshold Output 4.63 V Open drain RST 4.38 V Open drain RST 3.08 V Open drain RST 2.93 V Open drain RST 2.63 V Open drain RST 2 ...

Page 17

STM1001 8 Revision history Table 8. Document revision history Date Revision 09-Dec-2003 19-Feb-2004 22-Mar-2004 09-Apr-2004 19-Nov-2004 19-Sep-2005 17-Feb-2010 1 First edition 2 Part number changed from STM6301 2.1 Update DC characteristics 3 Device promoted; reformatted; marking updated 4 Update dimensions ...

Page 18

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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