Datasheets
UC3844BDR2G by:
onsemi
onsemi
Rochester Electronics LLC
Not Found

High Performance Current Mode PWM Controller, SOIC-14 NB, 2500-REEL

Part Details for UC3844BDR2G by onsemi

Results Overview of UC3844BDR2G by onsemi

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

UC3844BDR2G Information

UC3844BDR2G by onsemi is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for UC3844BDR2G

Part # Distributor Description Stock Price Buy
DISTI # 50AC7422
Newark Pwm Cont, Current Mode, 52Khz, Soic-14, Input Voltage:-, Output Voltage:5V, Output Current:1A, S... upply Voltage Min:14V, Supply Voltage Max:36V, Controller Ic Case Style:Soic, No. Of Pins:14Pins, Frequency:52Khz, Operating Temperature Rohs Compliant: Yes |Onsemi UC3844BDR2G more RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Cut Tape 1692
  • 1 $0.8220
  • 10 $0.6350
  • 25 $0.5700
  • 50 $0.5030
  • 100 $0.4380
  • 250 $0.4170
  • 500 $0.3960
  • 1,000 $0.3700
$0.3700 / $0.8220 Buy Now
DISTI # 42K2717
Newark Ic, smps Controller, current-Mode, bipolar, sop,14Pin, plastic |Onsemi UC3844BDR2G RoHS: Not Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Reel 0
  • 1 $0.3590
  • 3,000 $0.3500
  • 6,000 $0.3230
  • 12,000 $0.3020
  • 18,000 $0.2810
  • 30,000 $0.2690
$0.2690 / $0.3590 Buy Now
DISTI # UC3844BDR2GOSCT-ND
DigiKey IC REG CTRLR PWM CM 14-SOIC Min Qty: 1 Lead time: 20 Weeks Container: Cut Tape (CT), Tape & Reel (TR) 309
In Stock
  • 1 $1.2900
  • 10 $0.7880
  • 25 $0.6568
  • 100 $0.5082
  • 250 $0.4351
  • 500 $0.3901
  • 1,000 $0.3524
  • 2,500 $0.3118
  • 5,000 $0.2869
  • 7,500 $0.2742
  • 12,500 $0.2602
$0.2602 / $1.2900 Buy Now
DISTI # UC3844BDR2G
Avnet Americas Current Mode PWM Controller 1A 14-Pin SOIC T/R - Tape and Reel (Alt: UC3844BDR2G) RoHS: Compliant Min Qty: 2381 Package Multiple: 1 Lead time: 0 Weeks, 2 Days Container: Reel 2500 Partner Stock
  • 2,381 $0.2856
  • 2,400 $0.2793
  • 4,800 $0.2751
  • 12,000 $0.2709
  • 24,000 $0.2667
$0.2667 / $0.2856 Buy Now
DISTI # UC3844BDR2G
Avnet Americas Current Mode PWM Controller 1A 14-Pin SOIC T/R - Tape and Reel (Alt: UC3844BDR2G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 20 Weeks, 0 Days Container: Reel 2500 Factory Stock
  • 2,500 $0.2384
  • 5,000 $0.2493
  • 10,000 $0.2404
  • 15,000 $0.2321
  • 20,000 $0.2280
$0.2280 / $0.2493 Buy Now
DISTI # 863-UC3844BDR2G
Mouser Electronics Switching Controllers 52kHz 1A Current PWM w/48% Duty Cycle Max RoHS: Compliant 2133
  • 1 $0.7900
  • 10 $0.6490
  • 100 $0.4280
  • 500 $0.3980
  • 1,000 $0.3600
  • 2,500 $0.2720
  • 10,000 $0.2600
  • 25,000 $0.2580
$0.2580 / $0.7900 Buy Now
DISTI # 70341627
RS UC3844BDR2G, PWM Current Mode Controller, 1 A, 250 kHz, 36 V, 14-Pin SOIC | ON Semiconductor UC3844B... DR2G more RoHS: Not Compliant Min Qty: 10 Package Multiple: 1 Container: Bulk 0
  • 10 $0.5900
  • 100 $0.5600
  • 500 $0.5200
  • 1,000 $0.5000
$0.5000 / $0.5900 RFQ
Future Electronics UC3844B Series 17 mA 275 kHz High Performance Current Mode Controller - SOIC-14 RoHS: Compliant pbFree: Yes Min Qty: 5000 Package Multiple: 2500 Lead time: 20 Weeks Container: Reel 0
Reel
  • 2,500 $0.2400
  • 5,000 $0.2350
  • 12,500 $0.2300
$0.2300 / $0.2400 Buy Now
Onlinecomponents.com UC3844B Series 17 mA 275 kHz High Performance Current Mode Controller - SOIC-14 RoHS: Compliant 2500 In Stock
  • 2,500 $0.2704
  • 5,000 $0.2635
  • 7,500 $0.2596
  • 10,000 $0.2557
  • 15,000 $0.2519
  • 25,000 $0.2481
$0.2481 / $0.2704 Buy Now
DISTI # 83626206
Verical Current Mode PWM Controller 1A 500kHz 14-Pin SOIC N T/R RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Americas - 2500
  • 2,500 $0.3515
  • 5,000 $0.3426
  • 7,500 $0.3375
  • 10,000 $0.3324
  • 15,000 $0.3275
$0.3275 / $0.3515 Buy Now
DISTI # 86050475
Verical Current Mode PWM Controller 1A 500kHz 14-Pin SOIC N T/R RoHS: Compliant Min Qty: 1221 Package Multiple: 1 Date Code: 2301 Americas - 2500
  • 1,221 $0.3073
$0.3073 Buy Now
Rochester Electronics UC3844B - Current-Mode PWM Controller RoHS: Compliant Status: Active Min Qty: 1 2500
  • 1 $0.2892
  • 25 $0.2834
  • 100 $0.2718
  • 500 $0.2603
  • 1,000 $0.2458
$0.2458 / $0.2892 Buy Now
DISTI # UC3844BDR2G
TME IC: PMIC, PWM controller, 1A, 48÷500kHz, Ch: 1, SO14, boost,flyback Min Qty: 1 2462
  • 1 $0.8380
  • 10 $0.6550
  • 25 $0.5400
  • 100 $0.3960
  • 250 $0.3350
  • 500 $0.3200
$0.3200 / $0.8380 Buy Now
ComSIT USA AVAILABLE EU 1650
RFQ
ComSIT USA Electronic Component RoHS: Compliant Stock DE - 0
Stock ES - 2500
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
DISTI # SMC-UC3844BDR2G
Sensible Micro Corporation AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days 4400
RFQ
DISTI # UC3844BDR2G
Avnet Silica Current Mode PWM Controller 1A 14-Pin SOIC T/R (Alt: UC3844BDR2G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 21 Weeks, 0 Days Silica - 2500
Buy Now
DISTI # UC3844BDR2G
EBV Elektronik Current Mode PWM Controller 1A 14-Pin SOIC T/R (Alt: UC3844BDR2G) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 21 Weeks, 0 Days EBV - 0
Buy Now
Flip Electronics Stock, ship today 2500
RFQ
Master Electronics UC3844B Series 17 mA 275 kHz High Performance Current Mode Controller - SOIC-14 RoHS: Compliant 2500 In Stock
  • 2,500 $0.2704
  • 5,000 $0.2635
  • 7,500 $0.2596
  • 10,000 $0.2557
  • 15,000 $0.2519
  • 25,000 $0.2481
$0.2481 / $0.2704 Buy Now
New Advantage Corporation SOIC 14/C�/HIGH PERFORMANCE CURRENT MODE CONTROLLER RoHS: Compliant Min Qty: 1 Package Multiple: 2500 2500
  • 2,500 $0.4378
$0.4378 Buy Now

Part Details for UC3844BDR2G

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UC3844BDR2G Part Data Attributes

UC3844BDR2G onsemi
Buy Now Datasheet
Compare Parts:
UC3844BDR2G onsemi High Performance Current Mode PWM Controller, SOIC-14 NB, 2500-REEL
Select a part to compare:
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ONSEMI
Part Package Code SOIC-14 NB
Pin Count 14
Manufacturer Package Code 751A-03
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 2 Days
Samacsys Manufacturer onsemi
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 25 V
Input Voltage-Min 12 V
Input Voltage-Nom 15 V
JESD-30 Code R-PDSO-G14
JESD-609 Code e3
Length 8.65 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 14
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 1 A
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP14,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 275 kHz
Technology BIPOLAR
Temperature Grade COMMERCIAL
Terminal Finish MATTE TIN
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm

Alternate Parts for UC3844BDR2G

This table gives cross-reference parts and alternative options found for UC3844BDR2G. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UC3844BDR2G, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
UC2844BDR2G onsemi $0.4232 High Performance Current Mode PWM Controller, SOIC-14 NB, 2500-REEL UC3844BDR2G vs UC2844BDR2G
UC3844BVDR2G onsemi $0.4443 High Performance Current Mode PWM Controller, SOIC-14 NB, 2500-REEL UC3844BDR2G vs UC3844BVDR2G
UC2844BDR2 onsemi Check for Price 1A SWITCHING CONTROLLER, 275kHz SWITCHING FREQ-MAX, PDSO14, SOIC-14 UC3844BDR2G vs UC2844BDR2
UC3844BD onsemi Check for Price IC 1 A SWITCHING CONTROLLER, 275 kHz SWITCHING FREQ-MAX, PDSO14, SOIC-14, Switching Regulator or Controller UC3844BDR2G vs UC3844BD
Part Number Manufacturer Composite Price Description Compare
UC2844BD onsemi Check for Price 1A SWITCHING CONTROLLER, 275kHz SWITCHING FREQ-MAX, PDSO14, SOIC-14 UC3844BDR2G vs UC2844BD
UC3845AD8 Unitrode Corporation Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, SOIC-8 UC3844BDR2G vs UC3845AD8
5962-8670406VXA Defense Logistics Agency Check for Price Switching Controller, Current-mode, 1A, CQCC20, CERAMIC, LCC-20 UC3844BDR2G vs 5962-8670406VXA
UC3845ADM Linfinity Microelectronics Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, UC3844BDR2G vs UC3845ADM
UC3842ADW Unitrode Corp (RETIRED) Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO16, UC3844BDR2G vs UC3842ADW
UC3842DTR Fairchild Semiconductor Corporation Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO14, SOP-14 UC3844BDR2G vs UC3842DTR
UC1843J/883B Unitrode Corporation Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP8, UC3844BDR2G vs UC1843J/883B
SG1843L-883B Microchip Technology Inc Check for Price Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 UC3844BDR2G vs SG1843L-883B
UC2845BD1R2G onsemi $0.3859 High Performance Current Mode PWM Controller, SOIC-8 Narrow Body, 2500-REEL UC3844BDR2G vs UC2845BD1R2G
CS3844GN8 onsemi Check for Price 1A SWITCHING CONTROLLER, PDIP8, PLASTIC, DIP-8 UC3844BDR2G vs CS3844GN8

UC3844BDR2G Related Parts

UC3844BDR2G Frequently Asked Questions (FAQ)

  • The maximum operating frequency of the UC3844BDR2G is 500 kHz.

  • To ensure stable operation, ensure that the input voltage is within the recommended range, decouple the power supply with a 10uF capacitor, and use a minimum of 1kΩ pull-up resistor on the feedback pin.

  • The soft-start pin (SS) is used to slowly ramp up the output voltage during startup, reducing inrush current and preventing voltage overshoot.

  • Yes, the UC3844BDR2G can be used in a synchronous rectification topology, but it requires additional external components and careful design to ensure proper operation.

  • The minimum duty cycle is typically 0.02, and the maximum duty cycle is typically 0.98. These values can be calculated using the formulas provided in the datasheet.