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to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
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Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s
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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
FT10001
Reset Timer with Fixed Delay and Reset Pulse
Features
Description
The FT10001 is a timer for resetting a mobile device
where long reset times are needed. The long delay
helps avoid unintended resets caused by accidental key
presses. It has a fixed delay of 10 ±20% seconds. The
DSR pin enables Test Mode operation by immediately
forcing /RST1 LOW for factory testing.
Fixed Reset Delay: 10 Seconds
One Input Reset Pin
Open-Drain Output Pin with Fixed 530ms Pulse
1.8V to 5.0V Operation (TA=-40°C to +85°C)
1.7V to 5.0V Operation (TA=-25°C to +85°C)
1.65V to 5.00V Operation (TA=0°C to +85°C)
10s)
When the /SR0 input goes LOW, the internal timer starts
counting. If the /SR0 input stays LOW for at least 10s, the
RST output is enabled and pulled LOW. The output RST
is held LOW for tREC, 530ms, as soon as the reset time
of 10s is met, regardless of the state of the /SR0 pin.
When the /SR0 input has returned HIGH and tREC has
expired, the internal timer resets and awaits the next
RESET event.
Operation Modes
A low input signal on /SR0 starts the oscillator. There
are two scenarios for counting: short duration and long
duration. In the short-duration scenario, output /RST1 is
not affected. In the long-duration scenario, the output
/RST1 goes LOW after /SR0 has been held LOW for
10s. The /RST1 output returns to its original HIGH
Zero-Second Test Mode
/RST1 goes LOW immediately after /SR0 goes LOW.
N=7.5s
Short-Duration,
Normal Operation
/RST1 never goes LOW because
/SR0 LOW duration does not meet
requirement: Reset Time N=10s
/SR0
RST1
Long-Duration,
Normal Operation
/RST1 goes LOW because
/SR0 LOW duration exceeds
requirement: Reset Time N=10s
/SR0
RST1
tREC=530ms
/SR0
Zero-Second Factory-Test Mode
/RST1 goes LOW immediately
after /SR0 goes LOW
RST1
tREC=530ms
Figure 3.
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
Reset Timing Waveforms
www.fairchildsemi.com
5
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
Functional Description
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
AC Test Circuit and Waveforms
Figure 4.
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
AC Test Circuit and Waveforms for /RST1 Output ST Output
www.fairchildsemi.com
6
2X
0.05 C
1.45
B
2X
(1)
0.05 C
(0.254)
(0.49)
5X
1.00
(0.75)
PIN 1 IDENTIFIER
5
(0.52)
1X
A
TOP VIEW
0.55MAX
(0.30)
6X
PIN 1
0.05 C
0.05
0.00
RECOMMENED
LAND PATTERN
0.05 C
C
0.25
0.15 6X
1.0
DETAIL A
0.10
0.05
0.45
0.35
0.10
0.00 6X
C B A
C
0.40
0.30
0.35 5X
0.25
0.40 5X
0.30
0.5
(0.05)
6X
(0.13)
4X
BOTTOM VIEW
Notes:
0.075 X 45
CHAMFER
DETAIL A
PIN 1 TERMINAL
1. CONFORMS TO JEDEC STANDARD M0-252 VARIATION UAAD
2. DIMENSIONS ARE IN MILLIMETERS
3. DRAWING CONFORMS TO ASME Y14.5M-1994
4. FILENAME AND REVISION: MAC06AREV4
5. PIN ONE IDENTIFIER IS 2X LENGTH OF ANY
OTHER LINE IN THE MARK CODE LAYOUT.
Figure 5.
6-Lead MicroPak™ 1.0 x 1.45mm, JEDEC MO-252
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the
warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
www.fairchildsemi.com
7
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
Physical Dimensions
0.35
0.05 C
1.00
2X
B
A
5X 0.40
PIN 1
MIN 250uM
0.66
1.00
1X 0.45
6X 0.19
0.05 C
TOP VIEW
RECOMMENDED LAND PATTERN
FOR SPACE CONSTRAINED PCB
2X
0.90
0.05 C
0.55MAX
C
0.35
5X 0.52
SIDE VIEW
0.73
(0.08) 4X
1
DETAIL A
2
1X 0.57
0.09
0.19 6X
3
0.20 6X
ALTERNATIVE LAND PATTERN
FOR UNIVERSAL APPLICATION
(0.05) 6X
5X 0.35
0.25
0.35
6
5
4
BOTTOM VIEW
0.60
(0.08)
4X
0.10
.05 C
C B A
0.40
0.30
NOTES:
A. COMPLIES TO JEDEC MO-252 STANDARD
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994
D. LANDPATTERN RECOMMENDATION IS BASED ON FSC
DESIGN.
E. DRAWING FILENAME AND REVISION: MGF06AREV3
Figure 6.
0.075X45°
CHAMFER
DETAIL A
PIN 1 LEAD SCALE: 2X
6-Lead MicroPak2™ 1.0 x 1.0mm, .35mm Pitch
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the
warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
www.fairchildsemi.com
8
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
Physical Dimensions
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
www.fairchildsemi.com
9
Rev 0.0
8/1/11
Sean Ryan
Initial Rev – created from FT7521 datasheet
Rev 0.1
8/11/11
Sean Ryan
Updated the tREC to align with reset time of 10sec.
Rev 0.2
8/24/11
Alvan Lam
Added micropak2 information and marketing drawing
Rev 0.3
8/25/11
Alvan Lam
Updated the NMOS symbol in block diagram
Rev 0.4
9/6/11
Alvan Lam
Created revision table instead of using Hidden Text
Rev 1.0.0
12/6/11
Alvan Lam
Changed ABS Max to 7V, initial datasheet released by
Techdoc
Rev 1.0.1
12/14/11
Alvan Lam
Added 1.7/-25C condition to align FT7521 datasheet
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
www.fairchildsemi.com
10
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
Revisions
FT10001 — Reset Timer with Fixed Delay and Reset Pulse
© 2011 Fairchild Semiconductor Corporation
FT10001 • Rev 1.0.1
www.fairchildsemi.com
11
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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