Supervisory Circuits – Mouser South Africa

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BU45K/BU46K Series Voltage Detector ICs

ROHM Semiconductor BU45K/BU46K Series Voltage Detector ICs with built-in counter timer offer a low current consumption of 2.3μA (Typ.) and high accuracy detection voltage of ±1.0%. The BU45K/BU46K series has a detection voltage range of 2.3V to 4.8V with a counter-timer delay circuit built-in, eliminating the need for an external capacitor.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Qty.	Type	Mounting Style	Package/Case	Threshold Voltage	Number of Inputs Monitored	Output Type	Manual Reset	Watchdog Timers	Battery Backup Switching	Reset Delay Time	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Accuracy	Series	Packaging
Supervisory Circuits 2.9V 200ms SSOP3 Nch Volt Detctr IC BU45K292G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K292G-TL Mouser Part No 755-BU45K292G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.9V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SOT-23-3	2.9 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 3.1V 200ms SSOP3 Nch Volt Detctr IC BU45K312G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K312G-TL Mouser Part No 755-BU45K312G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.1V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	3.1 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 3.3V, Fixed Delay (400msec) Voltage Detector BU45K334G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K334G-TL Mouser Part No 755-BU45K334G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.3V, Fixed Delay (400msec) Voltage Detector	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	3.3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 3.4V Open Drain BU45K342G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K342G-TL Mouser Part No 755-BU45K342G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 3.4V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	3.4 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 3.6V 200ms SSOP3 Nch Volt Detctr IC BU45K362G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K362G-TL Mouser Part No 755-BU45K362G-TL NRND	ROHM Semiconductor	Supervisory Circuits 3.6V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	3.6 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 3.7V Open Drain BU45K372G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K372G-TL Mouser Part No 755-BU45K372G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 3.7V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	3.7 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 4.0V Open Drain BU45K402G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K402G-TL Mouser Part No 755-BU45K402G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 4.0V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 4.2V Open Drain BU45K422G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K422G-TL Mouser Part No 755-BU45K422G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 4.2V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4.2 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 4.4V 200ms SSOP3 Nch Volt Detctr IC BU45K442G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K442G-TL Mouser Part No 755-BU45K442G-TL NRND	ROHM Semiconductor	Supervisory Circuits 4.4V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4.4 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 4.6V 200ms SSOP3 Nch Volt Detctr IC BU45K462G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K462G-TL Mouser Part No 755-BU45K462G-TL NRND	ROHM Semiconductor	Supervisory Circuits 4.6V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4.6 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 4.6V, Fixed Delay (400msec) Voltage Detector BU45K464G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K464G-TL Mouser Part No 755-BU45K464G-TL NRND	ROHM Semiconductor	Supervisory Circuits 4.6V, Fixed Delay (400msec) Voltage Detector	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4.6 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 4.7V Open Drain BU45K472G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45K472G-TL Mouser Part No 755-BU45K472G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 4.7V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4.7 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 2.3V 200ms SSOP3 Nch Volt Detctr IC BU45L232G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45L232G-TL Mouser Part No 755-BU45L232G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.3V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 2.9V 200ms SSOP3 Nch Volt Detctr IC BU45L292G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45L292G-TL Mouser Part No 755-BU45L292G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.9V 200ms SSOP3 Nch Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.9 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 2.9V Open Drain BU45L294G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45L294G-TL Mouser Part No 755-BU45L294G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.9V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.9 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 3.3V Open Drain BU45L334G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU45L334G-TL Mouser Part No 755-BU45L334G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 3.3V Open Drain	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	3.3 V	1 Input	Open Drain	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits IC Vtg detector BU46K232G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU46K232G-TL Mouser Part No 755-BU46K232G-TL NRND	ROHM Semiconductor	Supervisory Circuits IC Vtg detector Learn More about ROHM Semiconductor rohm bu45k bu46k detectors	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.3 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits Volt Det IC 2.4V CMOS BU46K244G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU46K244G-TL Mouser Part No 755-BU46K244G-TL NRND	ROHM Semiconductor	Supervisory Circuits Volt Det IC 2.4V CMOS	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.4 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 2.5V 200ms SSOP3 CMOS Volt Detctr IC BU46K252G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU46K252G-TL Mouser Part No 755-BU46K252G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.5V 200ms SSOP3 CMOS Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.5 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 2.7V 200ms SSOP3 CMOS Volt Detctr IC BU46K272G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU46K272G-TL Mouser Part No 755-BU46K272G-TL NRND	ROHM Semiconductor	Supervisory Circuits 2.7V 200ms SSOP3 CMOS Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	2.7 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	200 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel
Supervisory Circuits 4.8V 400ms SSOP3 CMOS Volt Detctr IC BU46L484G-TL ROHM Semiconductor Non-Stocked Lead-Time 13 Weeks NRND	Mfr. Part No. BU46L484G-TL Mouser Part No 755-BU46L484G-TL NRND	ROHM Semiconductor	Supervisory Circuits 4.8V 400ms SSOP3 CMOS Volt Detctr IC	Datasheet	Non-Stocked Lead-Time 13 Weeks	Quote	Voltage Detector	SMD/SMT	SSOP-3	4.8 V	1 Input	CMOS	No Manual Reset	No Watchdog	No Backup	400 ms	6 V	- 40 C	+ 105 C	1 %	BU45/BU46	Reel

BU45K/BU46K Series Voltage Detector ICs

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2.3 V
2.4 V
2.5 V
2.6 V
2.7 V
2.8 V
2.9 V
3 V
3.1 V
3.2 V
3.3 V
3.4 V
3.5 V
3.6 V
3.7 V
4 V
4.2 V
4.4 V
4.5 V
4.6 V