SKU: 63456162920

STMICROELECTRONICS UC2843BD1 Current Mode PWM, 30V supply, 500 kHz, 5V/1A out, SOIC-8

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Description

STMICROELECTRONICS UC2843BD1 Current Mode PWM, 30V supply, 500 kHz, 5V/1A out, SOIC-8The UC2843BD1 is a high performance current mode PWM Controller IC. It is 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

The UC2843BD1 is a high performance current mode PWM Controller IC. It is 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.
  • Trimmed oscillator for precise frequency control
  • Automatic feed forward compensation
  • Latching PWM for cycle-by-cycle current limiting
  • Internally trimmed reference with under-voltage lockout
  • High current totem pole output
  • Under-voltage lockout with hysteresis
  • Low start-up and operating current

Applications

Power Management

Product details

Controller IC Case Style SOIC
Operating Temperature Min -40°C
Output Current 1A
Operating Temperature Max 150°C
No. of Pins 8Pins
Frequency 500kHz
Output Voltage 5V
Input Voltage 15V
Product Range -
Automotive Qualification Standard -
Supply Voltage Min -
Packaging Cut Tape
Supply Voltage Max 30V
MSL -

Other details

Brand STMICROELECTRONICS
Part Number UC2843BD1
Quantity Each
Technical Data Sheet EN
Product Change Notice EN

All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.

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SKU: 63456162920

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Nicole Wolfe
Los Angeles, US
★★★★★ 5
Works like a charm
Size: 7 Fl Oz (Pack of 1), Style: SPF 30
Easy to apply. No heavy scent. I'm very pale and am able to have fun in the sun without burning.
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Reviewed in the United States on February 27, 2026
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JNixo
Omaha, US
★★★★★ 5
Sunscreen
Size: 7 Fl Oz (Pack of 1), Style: SPF 30
Love this sunscreen for using in the pool. Goes on smooth. Absorbs quickly. No white residue. I apply ever 2-3 hours after getting in the pool. Seems to do its job and prevent sunburn.
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Reviewed in the United States on March 1, 2026
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Jorge F.
Battle Creek, US
★★★★★ 5
Not greasy, smells great
Size: 7 Fl Oz (Pack of 1), Style: SPF 30
Good protection, not greasy, smells great.
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Reviewed in the United States on March 2, 2026
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Randall F Stingley
Port Orchard, US
★★★★★ 5
Sun fun
Size: 7 Fl Oz (Pack of 1), Style: SPF 30
Good protection
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Reviewed in the United States on April 8, 2026
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AmazonShopper
Alexandria, US
★★★★★ 4
A favorite
Size: 7 Fl Oz (Pack of 1), Style: SPF 30
This is our go-to sunscreen. It has an 2020 EWG (ewg.org) safety rating of 3 (where a 1 is safest but often difficult to find and often too expensive and a 10 is the worst safety rating). We love that is not too thin or thick, so it goes on easily, and it works into your skin without leaving you white or greasy, has a neutral pleasant smell, stays on well in the water (up to 80 minutes), and is accessible (has a decent price around $1 per ounce and is easy to find in many local grocery and drug stores). It is the one my kids grab out of the pile every time! And the only reason there is a pile is that I am trying to find a sunscreen rated 1 or 2 by EWG that has all of the properties of Coppertone SPORT 30. The search continues....
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Reviewed in the United States on July 10, 2020

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