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STMicroelectronics UC3845BN DC Switching ControllersTransistor Driver 500kHz

UC3845BN
UC3845BN
2381-563-UC3845BN
STMicroelectronics
8-DIP (0.300, 7.62mm)
Switcher Configuration: SINGLE, Number of Pins: 8Pins, Control Technique: PULSE WIDTH MODULATION, Topology: Boost, Flyback, Control Features: Frequency Control
59000In Stock
Min.: 1 Mult.: 1
Quantity Unit Price Ext. Price
1+ $2.253045$2.25
10+ $2.125515$21.26
100+ $2.0052$200.52
500+ $1.891695$945.85
1000+ $1.784625$1784.63
Unit Price: $2.253045
Subtotal: $2.25
Looking for a better price? Want a lower wholesale price? Please send an RFQ, and we will respond immediately.

UC3845BN Tech Specifications

STMicroelectronics UC3845BN technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics UC3845BN.

Product Attribute Attribute Value
Lifecycle StatusACTIVE (Last Updated: 7 months ago)
Factory Lead Time10 Weeks
MountThrough Hole
Mounting TypeThrough Hole
Package / Case8-DIP (0.300, 7.62mm)
Number of Pins8Pins
Voltage - Input (Nom)15V
Operating Temperature-40°C~150°C TJ
PackagingTube
Tolerance2%
JESD-609 Codee3
Part StatusActive
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations8Terminations
ECCN CodeEAR99
Terminal FinishMatte Tin (Sn) - annealed
Max Power Dissipation1.25W
Voltage - Supply7.6V~30V
Terminal PositionDUAL
Terminal Pitch2.54mm
Frequency250kHz
Base Part NumberUC3845
FunctionStep-Up/Step-Down
Output TypeTransistor Driver
Analog IC - Other TypeSWITCHING CONTROLLER
Output ConfigurationPositive, Isolation Capable
Power Dissipation1.25W
Max Supply Current17mA
Current - Output200mA
Control FeaturesFrequency Control
Voltage - Output5V
TopologyBoost, Flyback
Control ModeCURRENT-MODE
Frequency - Switching500kHz
Control TechniquePULSE WIDTH MODULATION
Rise Time50ns
Synchronous RectifierNo
Fall Time (Typ)50 ns
Nominal Input Voltage15V
Switcher ConfigurationSINGLE
Max Duty Cycle50 %
Duty Cycle (Max)48%
Number of Output Phases1Output Phase
Height3.32mm
Length10.92mm
Width6.6mm
REACH SVHCNo SVHC
RoHS StatusROHS3 Compliant
Lead FreeLead Free
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UC3845BN Product Details

Product Description:

The STMicroelectronics UC3845BN is a high-performance, dual-channel, switching controller IC designed for DC-DC converters. This 8-pin, 8-DIP package IC is suitable for a wide range of applications, including power supplies, motor drives, and other high-power systems.

Features:

  • Wide Input Voltage Range: The UC3845BN operates with a supply voltage of 7.6V to 30V, making it suitable for a variety of applications.
  • Boost and Flyback Topology: The IC supports both boost and flyback topologies, allowing for flexible design options.
  • High Efficiency: With a maximum power dissipation of 1.25W, the UC3845BN is designed to minimize heat generation and maximize efficiency.
  • High Frequency Operation: The IC operates at a switching frequency of up to 500kHz, allowing for high-power conversion and compact design.
  • Pulse Width Modulation (PWM) Control: The UC3845BN features PWM control, enabling precise control over the output voltage.
  • Current-Mode Control: The IC's current-mode control ensures stable operation and fast transient response.

Applications:

  • Primary Applications: The UC3845BN is ideal for use in high-power DC-DC converters, power supplies, and motor drives.
  • Secondary Applications: The IC can also be used in other applications such as LED drivers, audio amplifiers, and medical devices.

Alternative Parts:

  • UC3845: The UC3845 is a single-channel version of the UC3845BN, suitable for applications that require a single output channel.

Embedded Modules:

  • STMicroelectronics' Power Management ICs: The UC3845BN is used in various STMicroelectronics' power management ICs, including DC-DC converters and power supplies.

FAQs:

Q: What is the maximum power dissipation of the UC3845BN? A: The maximum power dissipation of the UC3845BN is 1.25W.

Q: What is the operating temperature range of the UC3845BN? A: The operating temperature range of the UC3845BN is -40°C to 150°C (TJ).

Q: What is the switching frequency of the UC3845BN? A: The switching frequency of the UC3845BN is up to 500kHz.

Q: Is the UC3845BN ROHS compliant? A: Yes, the UC3845BN is ROHS3 compliant.

Q: What is the package type of the UC3845BN? A: The package type of the UC3845BN is 8-DIP (0.300, 7.62mm).

Q: What is the output voltage of the UC3845BN? A: The output voltage of the UC3845BN is 5V.

Q: What is the output current of the UC3845BN? A: The output current of the UC3845BN is 200mA.

Q: Is the UC3845BN suitable for high-power applications? A: Yes, the UC3845BN is designed for high-power applications and can handle high currents and voltages.

UC3845BN Documents

Download datasheets and manufacturer documentation for UC3845BN

UC2842B-45B, UC3842B-45BDatasheets · PDF
UC3845BN documentDatasheets · PDF
Mult Dev Moulding Chg 28/Jan/2020PCN Assembly/Origin · PDF

UC3845BN Comparison

The parts on the right have similar specifications to STMicroelectronics & UC3845BN.

  • Mfr. Part #

  • Manufacturer

  • Moisture Sensitivity Level (MSL)

  • Package / Case

  • Packaging

  • Topology

  • Output Configuration

  • Output Type

  • Operating Temperature

  • Frequency - Switching

  • Availability

  • Price

  • Quantity

  • UC3845BN

  • STMicroelectronics

  • 1 (Unlimited)

  • 8-DIP (0.300, 7.62mm)

  • Tube

  • Boost, Flyback

  • Positive, Isolation Capable

  • Transistor Driver

  • -40°C~150°C TJ

  • 500kHz

  • 59000

  • $2.253045

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