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3.6-35V 2ch Buck converter(controller) - BD9848FV

BD9848FV는 펄스 폭 변조 방식의 스위칭 레귤레이터 컨트롤러를 2회로 내장한 IC입니다. 2회로 모두 강압 DC/DC 컨버터 동작에 사용 가능합니다. 또한, 소형 패키지로 각종 기기의 소형 전원에 최적입니다.

* 본 제품은 STANDARD GRADE 제품입니다. 이 제품은 차재 기기의 사용을 권장하지 않습니다.
형명
상태
패키지
포장 수량
최소 포장 단위
포장 사양
RoHS
BD9848FV-E2 공급중 SSOP-B20 2500 2500 Taping Yes
 
사양 :
Grade Standard
ch 2
Integrated FET / Controller Controller
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 3.6
Vin1(Max.)[V] 35.0
Vout1(Min.)[V] 1.2
Vout1(Max.)[V] 31.5
Iout1(Max.)[A] 1.0
Vin2(Min.)[V] 3.6
Vin2(Max.)[V] 35.0
Vout2(Min.)[V] 1.2
Vout2(Max.)[V] 31.5
SW frequency(Max.)[MHz] 1.5
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 105
특징 :
  • ・고내압 입력 (Vcc=35V)
    ・FET 드라이버 회로 내장 (강압회로 2출력)
    ・오차 증폭기 기준전압 (1.0V±1%) 및 REG 출력회로 (2.5V) 내장
    ・과전류 검출회로 내장 (5주기 연속 검출)
    ・소프트 스타트・정지 기간 조정 가능
    ・스탠바이 / 마스터 / 슬레이브의 3모드 전환 가능 (스탠바이 시 Iccs=0uA typ.)
    ・각 ch 독립 ON / OFF 제어 가능 (DT 단자)
 
 
어플리케이션 :
단자 배치도 :
Pin Configration
 
 
관련 상품
관련 신제품 / 갱신 제품파워 매니지먼트
형명 제품 이름 패키지 Datasheet 유통 재고
BD9845FV 3.6-35V 1ch Buck converter(controller) SSOP-B14   구입
BA9741F 3.6-35V 2ch Boost / Inverting / Buck converter(controller) SOP16   구입
BA9741FS 3.6-35V 2ch Boost / Inverting / Buck converter(controller) SSOP-A16   구입
BA9743AFV 3.6-35V 2ch Boost / Inverting / Buck converter(controller) SSOP-B16   구입
BA9744FV 2.5-35V 2ch Boost / Inverting / Buck converter(controller) SSOP-B16   구입
BD63536FJ Step-down, High-efficiency Switching Regulators (Controller type) SOP-J8   구입
New Products:
 
 
기술 정보
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Calculation of Power Loss (Synchronous)

This application note describes how to obtain the power loss required to calculate the temperature of a semiconductor device. Temperature control is important to ensuring product reliability.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.

Resistor Value Table to set Output Voltage of Buck Converter IC

This Application Note offers reference table to easily set resistor values for output voltage with various internal reference voltages VREF.

Snubber Circuit for Buck Converter IC

In buck converter ICs, many high-frequency noises are generated at switch nodes. A snubber circuit provides one way of eliminating such harmonic noise. This application note explains how to set up the RC snubber circuits.

Capacitor Calculation for Buck converter IC

This application note explains the calculation of external capacitor value for buck converter IC circuit.

Inductor Calculation for Buck converter IC

This application note covers the steps required in choosing the inductor and to calculate the value used in buck regulator IC circuits.

Efficiency of Buck Converter

This application note explains power loss factors and methods for calculating them. It also explains how the relative importance of power loss factors depends on the specifications of the switching power source.

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Using unmatched MLCC may not obtain required target characteristics for power supply circuit and may cause abnormal operation. This application note explains the important points while using MLCC.

Considerations for Power Inductors Used for Buck Converters

This application note explains the features and things to consider when shopping for power inductors.