Datasheet Texas Instruments UCC3946PWG4

Microprocessor Supervisor with Watchdog Timer 8-TSSOP 0 to 70

Datasheets

PDF, 1.2 Mb, Revision: F, File published: Nov 21, 2007

Extract from the document

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

# of Supplies Monitored	1
Iq(Typ)	10 uA
Monitored Voltage 1 (typ)(Nom)	Adjustable V
Monitored Voltage 2 (typ)(Nom)	N/A V
Operating Temperature Range	0 to 70 C
Output Driver Type / Reset Output	Active-low,Push-pull
Package Group	TSSOP
Package Size: mm2:W x L	8TSSOP: 19 mm2: 6.4 x 3(TSSOP) PKG
Rating	Catalog
Reset Threshold Accuracy	2 %
Special Features	Watchdog Timer
Threshold Voltage 1(Typ)	Adjustable V
Threshold Voltage 2 (typ)(Typ)	N/A V
Time Delay	Programmable ms
VCC(Max)	5.5 V
VCC(Min)	2 V
Watchdog Timer WDI	Programmable sec

RoHS

Compliant

Download
Disabling the Watchdog Timer for TI's Family of Supervisors
PDF, 138 Kb, File published: Oct 30, 2003
In many microprocessor applications where a watchdog supervisor, such as the TPS3306, is required, it may be necessary to disable the watchdog. This is particularly true when software boot times exceed the watchdog time-out period. This application note describes a circuit that can be used to selectively disable the watchdog timer.
Download
Optimizing Resistor Dividers at a Comparator (Rev. A)
PDF, 120 Kb, Revision: A, File published: Jun 3, 2013

Series: UCC3946 (8)