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부품번호 | BA3950A 기능 |
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기능 | System power supply for CD player equipped audio systems | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 8 페이지수
Regulator ICs
System power supply for CD player-
equipped audio systems
BA3950A
With 13.3V (external transistor required), 12V, 10V, and 5.6V outputs, the BA3950A power supply IC is best suited for
CD player-equipped audio systems.
FApplications
CD player-equipped audio systems
FFeatures
1) 13.3V (external transistor required), 12V, 10V, and
5.6V outputs are built in (one output for each volt-
age).
2) Output current limit circuit protects the IC against
short-circuiting damage.
3) Thermal protection circuit prevents heat damage to
the IC.
4) Compact SIP-M12 package allows a large power dis-
sipation.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
199
Regulator ICs
FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 8V)
BA3950A
202
4페이지 Regulator ICs
(4) Overcurrent protection circuit
An overcurrent protection circuit is installed in each out-
put system, based on the respective output current. This
prevents IC destruction by overcurrent, by limiting the
current with a curve shape of “7” in the voltage-current
graph. The IC is designed with margins so that current
flow will be restricted and latching will be prevented even
if a large current suddenly flows through a large capaci-
tor. Note that these protection circuits are only good for
preventing damage from sudden accidents. Make sure
your design does not cause the protection circuit to oper-
ate continuously under transitional conditions (for
instance, when output is clamped at 1VF or higher). Note
that the circuit ability is negatively correlated with temper-
ature.
FThermal derating curve
BA3950A
(5) Thermal protection circuit
A built-in thermal protection circuit prevents thermal
damage to the IC. All outputs are switched OFF when the
circuit operates, and revert to the original state when
temperature drops to a certain level.
(6) Improving ripple rejection by capacitors
Ripple rejection of the CDP and MAIN outputs can be im-
proved by installing a capacitor that reduces the AC gain.
(7) Malfunction in intense electric fields
Note that bringing the IC into an intense electric field
(such as a radio relay station) may result in malfunction.
Estimate of allowable power dissipation (PMAX.)
S Power consumed by CDP
S Power consumed by µ-COM
S Power consumed by MAIN
S Power consumed internally by each circuit
P1 = (VCC * CDP) maximum load current of CDP
P2 = {VCC * (µ-COM)} maximum load current of µ-COM
P3 = (VCC * MAIN) maximum load current of MAIN
P4 = VCC supply current
PMAX. = P1 ) P2 ) P3 ) P4
205
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ BA3950A.PDF 데이터시트 ] |
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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 |
BA3950 | System power supply for CD player equipped audio systems | ROHM Semiconductor |
BA3950A | System power supply for CD player equipped audio systems | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |