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UC2842 Texas Instruments Current-Mode PWM Controllers Datasheet

UC2842ADM IC REG CTRLR BST FLYBK ISO 8SOIC


Texas Instruments
UC2842
Part Number UC2842
Manufacturer Texas Instruments (https://www.ti.com/)
Description The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include an undervoltage lockout (UVLO), featuring...
Features
• Optimized for off-line and DC-to-DC converters
• Low start-up current (< 1 mA)
• Automatic feedforward compensation
• Pulse-by-pulse current limiting
• Enhanced load-response characteristics
• Undervoltage lockout with hysteresis
• Double-pulse suppression
• High-current totem-pole output
• Internally trimmed bandgap reference
• Up to 500-kHz operation
• Error amplifier with low output resistance 2 Applications
• Switching regulators of any polarity
• Transformer-coupled DC-DC converters 3 Description The UCx84x series of control integrated circuits provide the features that are necessary to...

Document Datasheet UC2842 datasheet pdf (3.88MB)
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DigiKey
Stock 2304 In Stock
Price
1 units: 4.68 USD
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UC2842 Distributor

part
onsemi
UC2842BD1R2G
PWM CTRL, CURRENT MODE, 30V, SOIC-8
20000 units: 346 KRW
7500 units: 347 KRW
2500 units: 354 KRW
500 units: 386 KRW
100 units: 562 KRW
Distributor
element14 Asia-Pacific

3049 In Stock
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Microchip Technology Inc
UC2842ADM
IC REG CTRLR BST FLYBK ISO 8SOIC
1 units: 4.68 USD
Distributor
DigiKey

2304 In Stock
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part
onsemi
UC2842BD1R2G
Current Mode PWM Controller 1A 8-Pin SOIC N T/R (Alt: UC2842BD1R2G)
250000 units: 0.22094 USD
125000 units: 0.22627 USD
50000 units: 0.23185 USD
25000 units: 0.23772 USD
15000 units: 0.24077 USD
10000 units: 0.2439 USD
5000 units: 0.24711 USD
Distributor
Avnet Asia

0 In Stock
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STMicroelectronics
UC2842BD1013TR
Switching Controllers 0.5mA Current Mode
1 units: 1.16 USD
10 units: 0.986 USD
100 units: 0.757 USD
500 units: 0.639 USD
1000 units: 0.528 USD
2500 units: 0.462 USD
5000 units: 0.449 USD
10000 units: 0.439 USD
Distributor
Mouser Electronics

4867 In Stock
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onsemi
UC2842BD1R2G
Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N T/R
25000 units: 0.2401 USD
10000 units: 0.2432 USD
2500 units: 0.2524 USD
Distributor
Arrow Electronics

2500 In Stock
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STMicroelectronics
UC2842BD1
Current Mode PWM
1 units: 1.01 USD
10 units: 0.91 USD
100 units: 0.71 USD
500 units: 0.58 USD
Distributor
STMicroelectronics

1370 In Stock
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part
onsemi
UC2842BD1G
UC2842BD1G, PWM Current Mode Controller, 1 A, 250 kHz, 30 V, 8-Pin SOIC | ON Semiconductor UC2842BD1G
1 units: 0.489 USD
10 units: 0.465 USD
50 units: 0.44 USD
100 units: 0.416 USD
Distributor
RS

0 In Stock
No Longer Stocked
part
onsemi
UC2842BD1R2G
Current Mode PWM Controller 1A 500kHz 8-Pin SOIC N T/R
5 units: 0.341 USD
10 units: 0.303 USD
50 units: 0.257 USD
100 units: 0.251 USD
500 units: 0.244 USD
2500 units: 0.242 USD
Distributor
Chip1Stop

2500 In Stock
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Texas Instruments
UC2842N
Current Mode PWM Controller 200mA 500kHz 8-Pin PDIP Tube
9 units: 0.7027 USD
Distributor
Verical

189 In Stock
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part
Texas Instruments
UC2842AD8
UC2842A Current Mode PWM Controller
1000 units: 0.5107 USD
500 units: 0.5407 USD
100 units: 0.5648 USD
25 units: 0.5888 USD
1 units: 0.6008 USD
Distributor
Rochester Electronics

18263 In Stock
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PACKAGE OPTION ADDENDUM www.ti.com PACKAGING INFORMATION Orderable Device 5962-89905012A 5962-8990501EA UC1823J UC1823J883B UC1823L UC1823L883B UC2823DW UC2823DWG4 UC2823DWTR UC2823DWTRG4 UC2823N UC2823NG4 UC2823QTR UC2823QTRG3 UC3823DW UC3823DWG4 UC3823DWTR UC3823DWTRG4 UC3823N Status (1) Package Type Package Drawing ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE LCCC CDIP CDIP CDIP LCCC LCCC SOIC FK J J J FK FK DW Pins 20 16 16 16 20 20 16 Package Qty 1 1 1 1 1 1 40 ACTIVE SOIC DW 16 40 ACTIVE SOIC DW 16 2000 ACTIVE SOIC DW 16 2000 ACTIVE PDIP N 16 25 ACTIVE PDIP N 16 25 ACTIVE PLCC FN 20 1000 ACTIVE PLCC FN 20 1000 ACTIVE SOIC DW 16 40 ACTIVE S...
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The UC3823A & B and the UC3825A & B family of PWM control ICs are improved versions of the standard UC3823 & UC3825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12MHz while input offset voltage is 2mV. Current limit threshold is guaranteed to a tolerance of 5%. Oscillator discharge current is specified at 10mA for accurate dead time control. Frequency accuracy is improved to 6%. Startup supply current, typically 100µA, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the startup current specification. In addition each output is capable of 2...
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The UC3823A and UC3823B and the UC3825A and UC3825B family of PWM controllers are improved versions of the standard UC3823 and UC3825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Startup supply current, typically 100 μA, is ideal for off-line applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the startup current specification. In addition each ou...
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