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BU4945G-TR

BU4945G-TR

BU4945G-TR

ROHM Semiconductor

2.4V5 Terminals 5-Pin BU4945 Voltage supervisor1 Channels Min 700mV Max 7V

SOT-23

BU4945G-TR Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 20 Weeks
Mount Surface Mount
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Number of Pins 5
Operating Temperature-40°C~125°C TA
PackagingTape & Reel (TR)
Published 2009
Pbfree Code yes
Part StatusActive
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 5
ECCN Code EAR99
Type Simple Reset/Power-On Reset
Subcategory Power Management Circuits
Max Power Dissipation540mW
Technology CMOS
Terminal Position DUAL
Terminal FormGULL WING
Number of Functions 1
Supply Voltage 2.4V
Base Part Number BU4945
Output Push-Pull, Totem Pole
Pin Count5
Number of Channels 1
Max Supply Voltage7V
Min Supply Voltage700mV
Operating Supply Current 550nA
Max Supply Current 1.75μA
Adjustable Threshold NO
Quiescent Current550nA
Accuracy 1 %
Watchdog TimerNo
Reset Active High/Active Low
Voltage - Threshold 4.5V
Number of Voltages Monitored1
Min Reset Threshold Voltage 4.455V
Max Reset Threshold Voltage 4.545V
Threshold Voltage +4.5V
Undervoltage Threshold4.455V
Overvoltage Threshold4.545V
Length 2.9mm
RoHS StatusROHS3 Compliant
Lead Free Lead Free
In-Stock:43692 items

Pricing & Ordering

QuantityUnit PriceExt. Price
1$0.212798$0.212798
10$0.200754$2.00754
100$0.189390$18.939
500$0.178670$89.335
1000$0.168556$168.556

BU4945G-TR Product Details

BU4945G-TR Overview


A total of 5 terminals are used to mount this power management. In terms of packaging, power management follows the Tape & Reel (TR) model. In this PMIC, you can find 1 functions for your reference. A series of 1 channels can be found on this supervisor. To assist you, this PMIC includes SC-74A, SOT-753 functions. There are many benefits that this IC power shares with other Simple Reset/Power-On Reset products as well. When a supply voltage of 2.4V is applied to the power ic, it conducts. IC management conducts in a 1-voltage supply. Surface Mount mounts IC management. This power ic can be sub-categorized as Power Management Circuits. Power management has a total of 5 pins. There are 5 pins on the power managment ic. In order for this IC power to function, the supply voltage (Vsup) cannot be less than 700mV. The maximum supply voltage (Vsup) is not to exceed 7V volts in this IC management. The recommended mounting type is Surface Mount. The temperature of the supervisors should be set to this range: -40°C~125°C TA. During normal operation, this power managment ic can generate Push-Pull, Totem Pole of output voltage. Supplied with a operating current of 550nA, this PMIC is capable of fully function as specified. It is always advisable to use BU4945, the base supervisor number, when searching for similar PMICs from the manufacturer. A maximum supply temperature of 1.75μA can be used.

BU4945G-TR Features


Simple Reset/Power-On Reset type
Minimum supply voltage of 700mV
550nA operating supply current

BU4945G-TR Applications


There are a lot of ROHM Semiconductor BU4945G-TR Voltage Supervisors applications.

  • Power distribution systems of operating room
  • Fire equipment power monitoring system
  • Kitchen appliances
  • Microprocessor system
  • Refrigeration
  • Stable power system
  • Leakage current detection
  • Battery-powered equipment
  • Display equipment
  • Detection of phase loss

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