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부품번호 | ST8433BTRG 기능 |
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기능 | Constant Voltage and Constant Current Controller | ||
제조업체 | Stanson Technology | ||
로고 | |||
STANSON TECHNOLOGY
ST8433 (Pb-Free)
Constant Voltage and Constant Current Controller
DESCRIPTION
The ST8433 is high-voltage four-terminal adjustable voltage references, with over current
protection feature. The ST8433 is a one chip solution to a 2.5V precision voltage reference
and constant current output in the application of secondary feedback control of power
supply, DC/DC converter, adaptor and charger. ST8433 is idea for low cost switching
power supply application.
PIN CONFIGURATION
TO-92-4
FEATURE
z Voltage Reference Accuracy of 1%
z Sink Current Capability from 1mA to
100mA
z Adjustable Output Voltage from VREF to
18V
z Low Output Noise
z Typical Output Dynamic Impedance Less
Than 200mΩ
z Available in SOT23-5 and TO92-4
package
z Over Current Protection
R: Reference A: Anode C: Cathode
P: Current Enable
YY: Year WW: Week
SOT-23-5L
APPLICATIONS
z Battery Charger
z Battery Power Equipment
z Linear Regulators
z Switch Power Supply
z Cellular Phone
z Digital Cameras
z Computer Disk Drivers
z Instrumentation
Y: Year Code W: WEEK
120 Bentley Square, Mountain View, Ca 94040 USA
WWW.STANSONTECH.COM
1
ST8433 2009 V1
STANSON TECHNOLOGY
ST8433 (Pb-Free)
Constant Voltage and Constant Current Controller
APPLICATION CIRCUIT
APPLICATION NOTE
In the above application, ST8433 is used to provide an accurate control of voltage and
current. The voltage loop is controlled through an internal error amplifier, the resistor
bridge R1, R2 and the photo-coupler. The relation between Vout, R1, R2 and Vref is shown
in:
Vout = Vref x (1+R1/R2)
The current loop is controlled through an internal transistor, the sense resistor and the
photo-coupler. The control equation is:
Rsense x I-limit = 0.7V (typical)
Where I-limit is the desired current limit. The selection of Rsense should consider the
power loss through Rsense. It is calculated as:
P-limit = 0.7 x I-limit
Whether AC input is at High Line or Low Line, ST8433 can provide the same current
protection. It has the fuse function at the output.
120 Bentley Square, Mountain View, Ca 94040 USA
WWW.STANSONTECH.COM
4
ST8433 2009 V1
4페이지 | |||
구 성 | 총 6 페이지수 | ||
다운로드 | [ ST8433BTRG.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
ST8433BTRG | Constant Voltage and Constant Current Controller | Stanson Technology |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |