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ST UC2845BD1013TR 48HRS

Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC

ISO14001 ISO9001 DUNS

Brands: STMicroelectronics, Inc

Mfr.Part #: UC2845BD1013TR

Datasheet: UC2845BD1013TR Datasheet (PDF)

Package/Case: SO-8

RoHS Status:

Stock Condition: 3,445 pcs, New Original

Product Type: DC DC Switching Controllers

Warranty: 1 Year Ovaga Warranty - Find Out More

Pricing

*All prices are in USD

Qty Unit Price Ext Price
1 $0.771 $0.771
10 $0.644 $6.440
30 $0.581 $17.430
100 $0.517 $51.700
500 $0.430 $215.000
1000 $0.411 $411.000

In Stock: 3,445 PCS

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Quick Quote

Please submit RFQ for UC2845BD1013TR or email to us: Email: [email protected], we will contact you within 12 hours.

UC2845BD1013TR General Description

The UC284xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off-state.Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC2842B and UC2844B have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications The corresponding thresholds for the UC2843B and UC2845B are 8.5V and 7.9V. The UC2842B and UC2843B can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC2844B and UC2845B by the addition of an internal toggle flip flop which blanks the output off every other clock cycle.

uc2845bd1013tr

Features

  • LOW START-UP AND OPERATING CURRENT
  • UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
  • INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT
  • CURRENT LIMITING
  • TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL
  • CURRENT MODE OPERATION TO 500kHz
  • OSCILLATOR FREQUENCY GUARANTEED AT 250kHz
  • LATCHING PWM FOR CYCLE-BY-CYCLE
  • HIGH CURRENT TOTEM POLE OUTPUT
  • AUTOMATIC FEED FORWARD COMPENSATION
uc2845bd1013tr

Specifications

Parameter Value Parameter Value
Manufacturer: STMicroelectronics Product Category: Switching Controllers
RoHS: Details Topology: Boost, Flyback, Forward
Number of Outputs: 1 Output Switching Frequency: 500 kHz
Duty Cycle - Max: 50 % Input Voltage: 30 V
Output Voltage: 4.95 V to 5.05 V Output Current: 1 A
Minimum Operating Temperature: - 40 C Maximum Operating Temperature: + 150 C
Mounting Style: SMD/SMT Package / Case: SOIC-8
Packaging: MouseReel Brand: STMicroelectronics
Fall Time: 50 ns Operating Supply Voltage: 30 V
Product Type: Switching Controllers Rise Time: 50 ns
Series: UC2845B Factory Pack Quantity: 2500
Subcategory: PMIC - Power Management ICs Type: Current Mode PWM Controllers
Unit Weight: 0.017870 oz

Shipping

Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
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TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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Payment

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Guarantees

1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

Packing

  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Part points

  • UC2845BD1013TR is a pulse width modulation (PWM) controller chip used in various power supply applications. It regulates the output voltage by adjusting the width of the pulses delivered to the power switch. This chip offers improved features such as precise duty cycle control, adjustable frequency, and current limiting. It is commonly used in switch-mode power supplies, battery chargers, and LED drivers.
  • Equivalent

    Some equivalent products of the UC2845BD1013TR chip include the UC2845BDG, UC3845BD1R2G, SG6845SZ, MC34060AD, and IRS2845D.
  • Features

    The features of UC2845BD1013TR include a precision reference, a totem-pole output stage, a trimmable oscillator for accurate frequency control, an error amplifier with a 2.5V internal reference, overcurrent limit, and a maximum duty cycle of 50%. It operates in the voltage range of 7.6V to 30V and is suited for switch mode power supplies.
  • Pinout

    The UC2845BD1013TR is a pulse width modulation (PWM) controller with a pin count of 8. The pin functions are as follows: pin 1 (E/A) is the error amplifier output; pin 2 (Ipk) is the peak current sense input; pin 3 (Vin) is the supply voltage input; pins 4 and 5 (Gnd) are ground pins; pin 6 (CS) is the current sense input; pin 7 (Out) is the output pin; pin 8 (Comp) is the compensation input.
  • Manufacturer

    The manufacturer of the UC2845BD1013TR is Texas Instruments. Texas Instruments is a semiconductor manufacturing company that designs, manufactures, and sells a wide range of electronics and integrated circuits.
  • Application Field

    The UC2845BD1013TR is a PWM (Pulse Width Modulation) controller IC used in power supply applications. It can be used in areas such as switch-mode power supplies, LED lighting, battery chargers, and motor control circuits. Its versatility and efficiency make it suitable for various power electronics applications.
  • Package

    The UC2845BD1013TR chip is available in a SOIC-14 package type. It has a form factor of SOP and measures approximately 8.65 mm x 3.91 mm.

Datasheet PDF

Preliminary Specification UC2845BD1013TR PDF Download

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