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BU4947F-TR

BU4947F-TR

BU4947F-TR

ROHM Semiconductor

2.4V4 Terminals 4-Pin BU4947 Voltage supervisor1 Channels Min 700mV Max 7V

SOT-23

BU4947F-TR Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Factory Lead Time 7 Weeks
Mount Surface Mount
Mounting Type Surface Mount
Package / Case SC-82
Number of Pins 4
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 4
ECCN Code EAR99
Type Simple Reset/Power-On Reset
Subcategory Power Management Circuits
Max Power Dissipation400mW
Technology CMOS
Terminal Position DUAL
Terminal FormGULL WING
Number of Functions 1
Supply Voltage 2.4V
Base Part Number BU4947
Output Push-Pull, Totem Pole
Pin Count4
Power Supplies2.5/5V
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 4.7V
Number of Voltages Monitored1
Min Reset Threshold Voltage 4.653V
Max Reset Threshold Voltage 4.747V
Threshold Voltage +4.7V
Undervoltage Threshold4.653V
Overvoltage Threshold4.747V
Length 2mm
RoHS StatusROHS3 Compliant
Lead Free Lead Free
In-Stock:38108 items

Pricing & Ordering

QuantityUnit PriceExt. Price
1$0.537379$0.537379
10$0.506962$5.06962
100$0.478266$47.8266
500$0.451194$225.597
1000$0.425655$425.655

BU4947F-TR Product Details

BU4947F-TR Overview


This power management consists of 4 mounting terminals on which it can be mounted. Tape & Reel (TR)-packaging is used. Power management is possible to find a series of 1 functions. Depending on the power managment ic you are looking at, you can find a total of 1 channels. There are SC-82 functions included in this PMIC so that you can refer to them. As with other Simple Reset/Power-On Reset products, this IC management also offers a wide range of benefits. In a 2.4V supply voltage, the power management conducts. In a 1 supply voltage, the PMIC chip conducts. Surface Mount mounts IC management. In this case, this PMIC chip can be sub-categorized as a Power Management Circuits chip. Power management has a total of 4 pins. 4 pins are present on the power management system. It is recommended that Vsup should not be less than 700mV for this IC power. Voltage (Vsup) shouldn't exceed 7V volts in this PMIC. The recommended mounting type for IC management is Surface Mount. The temperature of the supervisors should be set to this range: -40°C~125°C TA. The output voltage of this power managment ic during operation is Push-Pull, Totem Pole. There is a supply current of 550nA for the power management. It is always advisable to use BU4947, the base supervisor number, when searching for similar PMICs from the manufacturer. In order to operate this power management, it requires 2.5/5V volts of power. A maximum supply temperature of 1.75μA can be used with this power management.

BU4947F-TR Features


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

BU4947F-TR Applications


There are a lot of ROHM Semiconductor BU4947F-TR Voltage Supervisors applications.

  • Leakage current detection
  • Digitally controlled LDO regulators circuit
  • Automotive permanent magnet synchronous motors
  • Dash board
  • External alarm
  • Computer applications
  • WiFi router
  • Urban rail transit weak current power monitoring
  • Transformer load monitoring equipment
  • Display equipment

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