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ST UC3845BN

Name: UC3845BN
Rating: 4.5 (10 reviews)

UC3845BN 5V PWM controller with current mode

ブランド: Stmicroelectronics

製造元部品 #: UC3845BN

データシート: UC3845BN データシート (PDF)

パッケージ/ケース: DIP-8

RoHS ステータス:

在庫状況: 8096 個、新しいオリジナル

製品の種類: Switching Controllers

Warranty: 1 Year Ovaga Warranty - Find Out More

価格設定

*すべての価格は米ドルです

数量	単価	外部価格
1	$0.490	$0.490
10	$0.404	$4.040
50	$0.359	$17.950
100	$0.316	$31.600
500	$0.290	$145.000
1200	$0.277	$332.400

In Stock:8096 PCS

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簡単な見積もり

RFQを提出してください UC3845BN またはメールでご連絡ください: Eメール: [email protected], 12時間以内にご連絡させていただきます。

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述べる

UC3845BN 概要

The UC3845BN is a pulse-width modulation (PWM) controller IC commonly used in power supply applications. It operates as a voltage mode PWM controller, regulating the output voltage by adjusting the duty cycle of the PWM signal driving a power MOSFET or transistor. With its versatile features, it can be configured for various power supply topologies including flyback, boost, and forward converters.This IC integrates functions like a precision reference voltage, oscillator, error amplifier, pulse steering flip-flop, and a high-current totem pole output stage. Its voltage feedback loop enables precise regulation of the output voltage, ensuring stability and efficiency. The internal oscillator frequency can be programmed through external resistors and capacitors, allowing flexibility in design.The UC3845BN offers protection features such as overcurrent protection (OCP) and overvoltage protection (OVP), safeguarding the power supply and connected devices from faults and abnormal conditions. It operates over a wide temperature range and is available in various package options for different applications, making it a popular choice in power supply designs

特徴

The UC3845BN is a versatile PWM controller IC

Its features include adjustable frequency, voltage feedforward compensation, and overcurrent protection

It operates from a wide input voltage range and can drive N-channel MOSFETs or bipolar power transistors

With precise control, it's commonly used in power supplies and lighting applications

応用

The UC3845BN is commonly used in switch-mode power supply (SMPS) applications for regulating voltage

It's also found in battery chargers, LED drivers, and motor control circuits

With its versatile design and high efficiency, it's a popular choice for various power management needs

仕様

パラメータ	価値	パラメータ	価値
ECCN US	EAR99	ECCN EU	NEC
Packing Type	Tube	RoHs compliant	Ecopack2
Grade	Industrial

配送

	配送料	リードタイム
DHL	$20.00-$40.00 (0.50 KG)	2-5 日々
フェデックス	$20.00-$40.00 (0.50 KG)	2-5 日々
UPS	$20.00-$40.00 (0.50 KG)	2-5 日々
TNT	$20.00-$40.00 (0.50 KG)	2-5 日々
EMS	$20.00-$40.00 (0.50 KG)	2-5 日々
登録された航空便	$20.00-$40.00 (0.50 KG)	2-5 日々

処理時間：送料は地域や国によって異なります。

支払い

支払条件		ハンドフィー
	電信送金	銀行手数料 US$30.00 を請求します。
	ペイパル	4.0％のサービス料がかかります。
	クレジットカード	3.5％のサービス料がかかります。
	ウエスタンユニオン	charge US.00 banking fee.
	送金サービス	銀行手数料は 0.00 米ドルかかります。

保証

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2.受け取った商品の一部が完璧な品質ではない場合、当社は責任を持って返金または交換を手配します。ただし、商品は元の状態のままでなければなりません。

パッキング

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ステップ6 :バーコード配送タグ

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社外の ESD 梱包ラベルには、部品番号、ブランド、数量などの当社の情報が使用されます。

私たちは出荷前にすべての商品を検査し、すべての製品が良好な状態であることを確認し、部品が新しいオリジナルでデータシートと一致していることを確認します。

すべての商品に問題がないことを確認した後、梱包後、安全に梱包し、グローバルエクスプレスで発送します。優れた耐穿刺性と耐引裂性を示し、シールの完全性も良好です。

パーツポイント

The UC3845BN is a pulse width modulation (PWM) controller chip commonly used in power supply applications. It provides precise control of switching power supplies, allowing for efficient regulation of voltage output. The chip offers features such as adjustable frequency, soft start capability, and current limiting. Its versatile design makes it suitable for various applications like LED lighting, computer power supplies, and battery chargers.
Equivalent

Some equivalent products of the UC3845BN chip include TL3845P, MC3845P, and SG3845DW.
Features

The UC3845BN is a high-performance current-mode PWM controller designed for off-line and DC-to-DC converter applications. Its features include precise control of output pulse widths, frequency range up to 500kHz, adjustable soft-start function, low startup and operating current, and protection against feedback loss.
Pinout

The UC3845BN is an 8-pin integrated circuit (IC) used as a pulse width modulation (PWM) controller. Its pins include VREF, COMP, CS, GND, D, DTC, RT/CT, and VCC. These pins serve functions such as output voltage control, error amplifier input, current sense input, ground connection, output driver, discharge control, timing components, and power supply input.
Manufacturer

The UC3845BN is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits. They produce a wide range of products for diverse industries, including automotive, industrial, consumer electronics, and telecommunications.
Application Field

The UC3845BN is an integrated circuit used for controlling the pulse width modulation (PWM) in switch mode power supplies. It is commonly applied in areas such as industrial power supplies, battery chargers, LED lighting, and motor control circuits.
Package

The UC3845BN chip has a package type of PDIP (Plastic Dual-In-Line Package), a form of through-hole technology, with a standard size of 8 pins.