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ABLIC Electronic Components Datasheet

S-19400 Datasheet

WATCHDOG TIMER

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www.ablicinc.com
© ABLIC Inc., 2014-2017
S-19400/19401 Series
AUTOMOTIVE, 125°C OPERATION,
3.8 A CURRENT CONSUMPTION
WATCHDOG TIMER WITH RESET FUNCTION
Rev.2.2_01
The S-19400/19401 Series is a watchdog timer developed using CMOS technology, which can operate with low current
consumption of 3.8 A typ. The reset function and the low voltage detection function are available.
Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in
the purpose, contact to ABLIC Inc. is indispensable.
Features
Detection voltage:
Detection voltage accuracy:
Input voltage:
Hysteresis width:
Current consumption:
Reset time-out period:
Watchdog operation is switchable:
Watchdog operation voltage range:
Watchdog mode switching function*1:
Watchdog input edge is selectable:
Product type is selectable:
Operation temperature range:
Lead-free (Sn 100%), halogen-free
AEC-Q100 qualified*2
2.0 V to 5.0 V, selectable in 0.1 V step
2.0%
VDD = 0.9 V to 6.0 V
5% typ.
3.8 A typ.
14.5 ms typ. (CPOR = 2200 pF)
Enable, Disable
2.5 V to 6.0 V
Time-out mode, window mode
Rising edge, falling edge, both rising and falling edges
S-19400 Serie_s__
________
(Product with W / T pin (Output: WDO pin))
S-19401 Series ___
_______
________
(Product without W / T pin (Output: RST pin, WDO pin))
Ta = 40°C to 125°C
*1. The S-19401 Series is fixed to the window mode.
*2. Contact our sales office for details.
Applications
Automotive (engine, transmission, suspension, ABS, related-devices for EV / HEV / PHEV, etc.)
Packages
TMSOP-8
HSNT-8(2030)
1


ABLIC Electronic Components Datasheet

S-19400 Datasheet

WATCHDOG TIMER

No Preview Available !

AUTOMOTIVE, 125°C OPERATION, 3.8 A CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION
S-19400/19401 Series
Rev.2.2_01
Block Diagrams
____
1. S-19400 Series (Product with W / T pin)
VDD
WEN
WDI
W/T
Noise
filter
Noise
filter
Noise
filter
CWDT
WDT circuit
VSS
Reference
voltage
circuit
Voltage detection
circuit
CPOR
Figure 1
____
2. S-19401 Series (Product without W / T pin)
CWDT
VDD
WDO
WEN
WDI
VSS
Noise
filter
Noise
filter
WDT circuit
Reference
voltage
circuit
Voltage detection
circuit
Figure 2
CPOR
RST
WDO
2


Part Number S-19400
Description WATCHDOG TIMER
Maker ABLIC
Total Page 30 Pages
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