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ST UC3844BD1013TR

Name: UC3844BD1013TR
Rating: 4.5 (10 reviews)

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

ブランド: STMicroelectronics, Inc

製造元部品 #: UC3844BD1013TR

データシート: UC3844BD1013TR Datasheet (PDF)

パッケージ/ケース: SO-8

RoHS ステータス:

在庫状況: 3213 個、新しいオリジナル

製品の種類: 電源管理IC

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	$0.411	$0.411
10	$0.328	$3.280
30	$0.294	$8.820
100	$0.249	$24.900
500	$0.226	$113.000
1000	$0.215	$215.000

In Stock:3213 PCS

- +

簡単な見積もり

RFQを提出してください UC3844BD1013TR 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

UC3844BD1013TR 概要

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.

特徴

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

仕様

パラメータ	価値	パラメータ	価値
Manufacturer:	STMicroelectronics	Product Category:	Switching Controllers
RoHS:	Y	Topology:	Boost, Flyback
Number of Outputs:	1 Output	Switching Frequency:	500 kHz
Duty Cycle - Max:	50 %	Output Voltage:	4.90 V to 5.10 V
Output Current:	1000 mA	Minimum Operating Temperature:	- 40 C
Maximum Operating Temperature:	+ 150 C	Mounting Style:	SMD/SMT
Package / Case:	SO-8	Packaging:	Reel
Series:	UC3844B	Type:	Current Mode PWM Controllers
Brand:	STMicroelectronics	Fall Time:	50 ns
Operating Supply Voltage:	30 V	Product Type:	Switching Controllers
Rise Time:	50 ns	Factory Pack Quantity:	2500
Subcategory:	PMIC - Power Management ICs	Unit Weight:	0.017870 oz
Tags	UC3844BD101, UC3844BD10, UC3844BD1, UC3844BD, UC3844B, UC3844, UC384, UC38, UC3	feature-type	Current Mode PWM Controller
feature-maximum-power-dissipation-mw	1250	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	8
feature-supplier-package	SO N	feature-standard-package-name1	SO
feature-cecc-qualified	No	feature-esd-protection
feature-escc-qualified		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No

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。

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パーツポイント

The UC3844BD1013TR chip is a pulse width modulation (PWM) controller commonly used in switch-mode power supply (SMPS) applications. It provides precise control over the output voltage and current by modulating the duty cycle of the switching transistor. The chip includes features like overvoltage protection, soft start, and current limiting, making it suitable for various power management applications.
Equivalent

Some equivalent products of the UC3844BD1013TR chip include the UC3844BN, UC3844BNG, UC3844BD1R2G, and UC3844BD1R2G. These chips are similar in function and can be used interchangeably in many applications.
Features

The UC3844BD1013TR is a pulse-width modulation (PWM) controller IC. It features a 1A peak output current, precise voltage reference, high-frequency operation, programmable soft-start, pulse-by-pulse current limiting, protection against feedback loop disconnection, and an open collector output transistor for driving power MOSFETs.
Pinout

The UC3844BD1013TR is an IC (integrated circuit) with a 14-pin count. It is commonly used as a current-mode PWM controller in switch-mode power supplies. Its functions include regulating the output voltage, providing accurate feedback control, and protecting against overvoltages and overcurrents.
Manufacturer

The manufacturer of the UC3844BD1013TR is Texas Instruments. Texas Instruments is a multinational semiconductor company that specializes in designing and manufacturing integrated circuits and other electronic components.
Application Field

The UC3844BD1013TR is a voltage-mode PWM controller that is commonly used in various applications such as switched-mode power supplies (SMPS), battery chargers, and LED drivers. It provides control over the duty cycle of the PWM signal, making it suitable for applications requiring precise output voltage or current regulation.
Package

The UC3844BD1013TR chip comes in a SOIC-8 package type, with a body size of 3.9mm x 4.9mm and a lead form of gull-wing.