UCC2946PWG4

Unknown

Texas Instruments

PROCESSOR SUPERVISOR 1.235V 1 ACTIVE LOW/PUSH-PULL 8-PIN TSSOP TUBE

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UCC2946PWG4

Unknown

Texas Instruments

PROCESSOR SUPERVISOR 1.235V 1 ACTIVE LOW/PUSH-PULL 8-PIN TSSOP TUBE

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC2946PWG4

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output	Totem Pole, Push-Pull
Package / Case	8-TSSOP
Package / Case [custom]	0.173 "
Package / Case [custom]	4.4 mm
Reset	Active Low
Reset Timeout [Min]	140 ms
Supplier Device Package	8-TSSOP
Type	Simple Reset/Power-On Reset
Voltage - Threshold	Adjustable/Selectable

UCC2946-Q1 Series

Automotive, 2.1-V to 5.5-V microprocessor supervisor with watchdog timer

Part	Reset	Reset Timeout [Min]	Number of Voltages Monitored	Voltage - Threshold	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [y]	Package / Case [x]	Output	Supplier Device Package	Type	Package / Case [custom]	Package / Case [custom]	Grade	Qualification
Texas Instruments UCC2946DTRG4	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	Push-Pull Totem Pole	8-SOIC	Simple Reset/Power-On Reset
Texas Instruments UCC2946PWTR	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-TSSOP			Push-Pull Totem Pole	8-TSSOP	Simple Reset/Power-On Reset	0.173 "	4.4 mm
Texas Instruments UCC2946DG4	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	Push-Pull Totem Pole	8-SOIC	Simple Reset/Power-On Reset
Texas Instruments UCC2946PWG4	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-TSSOP			Push-Pull Totem Pole	8-TSSOP	Simple Reset/Power-On Reset	0.173 "	4.4 mm
Texas Instruments UCC2946DTR	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	Push-Pull Totem Pole	8-SOIC	Simple Reset/Power-On Reset
Texas Instruments UCC2946PWTRG4	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-TSSOP			Push-Pull Totem Pole	8-TSSOP	Simple Reset/Power-On Reset	0.173 "	4.4 mm
Texas Instruments UCC2946PW	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-TSSOP			Push-Pull Totem Pole	8-TSSOP	Simple Reset/Power-On Reset	0.173 "	4.4 mm
Texas Instruments UCC2946TPWRQ1	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	105 °C	-40 °C	8-TSSOP			Push-Pull Totem Pole	8-TSSOP	Simple Reset/Power-On Reset	0.173 "	4.4 mm	Automotive	AEC-Q100
Texas Instruments UCC2946D	Active Low	140 ms	1	Adjustable/Selectable	Surface Mount	85 °C	-40 °C	8-SOIC	3.9 mm	0.154 in	Push-Pull Totem Pole	8-SOIC	Simple Reset/Power-On Reset

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tray	150	$ 4.86

Description

General part information

UCC2946-Q1 Series

The UCC2946 is designed to provide accurate microprocessor supervision, including reset and watchdog functions. During power up, the device asserts a reset signalRESwith VDD as low as 1 V. The reset signal remains asserted until the VDD voltage rises and remains above the reset threshold for the reset period. Both reset threshold and reset period are programmable by the user.

The UCC2946 is also resistant to glitches on the VDD line. OnceREShas been deasserted, any drops below the threshold voltage need to be of certain time duration and voltage magnitude to generate a reset signal. These values are shown in. An I/O line of the microprocessor may be tied to the watchdog input (WDI) for watchdog functions. If the I/O line is not toggled within a set watchdog period, programmable by the user,WDOis asserted. The watchdog function is disabled during reset conditions.

The UCC2946 is available in 8-pin TSSOP (PW) package to optimize board space.

Documents

Technical documentation and resources

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