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부품번호 | LA5683T 기능 |
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기능 | Monolithic Linear IC 4ch Switching Regulator Control IC | ||
제조업체 | Sanyo Semicon Device | ||
로고 | |||
전체 12 페이지수
Ordering number : EN8214
Monolithic Linear IC
LA5683T 4ch Switching Regulator Control IC
Overview
The LA5683T is 4ch switching regulator control IC.
Functions
• Low-voltage operation (minimum 1.8V).
• OUT1 and OUT2 can drive external PNP transistors.
• OUT3 and OUT4 can drive external NPN transistors.
• 4-independent-channel standby circuit built-in.
• ±1% accuracy reference voltage.
• Supports MOS transistor drive.
• Channel 2 dead time internally set fixed, duty cycle = 100%.
(The dead time for channels 1, 3, and 4 are set externally.)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Supply voltage 1
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Conditions
Independent IC
Ratings
9
0.4
-20 to +85
-55 to +150
Unit
V
W
°C
°C
Operating Conditions at Ta = 25°C
Parameter
Supply voltage 1
Supply voltage 2
Output sync current
Reference voltage output current
Timing resistor
Timing capacity
Triangular wave frequency
Symbol
VCC
VBIAS
ISINK max
IREF
RT
CT
fOSC
Conditions
Ratings
1.8 to 8
1.8 to 8
0 to 30
0 to 1
3 to 30
100 to 1000
0.1 to 1
Unit
V
V
mA
mA
kΩ
pF
MHz
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
www.DataSheet.in
92706 / 40506 MS IM B8-7242 No.8214-1/12
LA5683T
Block Diagram and Application Circuit Examples 1
2-dry-battery (1.8V to 3.2V) configuration
to VO1
DTC1
33
R6=100Ω
30 IN1-
31 FB1
C9=0.047µF
CSOFT1
32
to VO2
R9=100Ω
IN2-
7
FB2
6
C11=0.047µF
CSOFT2
5
to VO3
DTC3
14
11 IN3-
R14=100Ω
12 FB3
C13=0.047µF
CSOFT3
13
to VO4
DTC4
15
R19=100Ω
IN4-
22
FB4
21
C15=0.047µF
CSOFT4
20
18 GND
25
SCP
28
VREF
++ --
-+
VCC
9
CAPH1
34
CAPL1
35
OUT1
36
++ --
-+
++ ++
--
CAPH2
4
CAPL2
3
OUT2
2
VS
1
VBIAS
16
OUT3
17
++ ++
--
OUT4
19
STBY
OSC
29 8 10 23
27 24 26
VCC
Q1 : CPH3121
T1
1
D2 : SBS005
4
3 D1 :
2 SBS004
6
VO1A=15V/15mA
VO1=3.3V/140mA
Rb1=180Ω
Cb1=4700pF
7, 8 5
D3 : SBS004
VO1B=-7.5V/10mA
Q2 : CPH3121
L4 : 22µH
D5 : SBS004
VO2=1.5V/200mA
Rb2=180Ω
Cb2=4700pF
L6=6.8µH D6 : SBS004
Q100 : CPH3307 VO3=3.3V/500mA
Q3 : MCH3409
to STBY3
Q101 :
CPH3215
L9 : 10µH D7 : SBS005
Q102 : CPH3308 VO4=12V/100mA
Q4 : MCH3409
to STBY4
Q103 :
CPH3215
ILA07050
T1 = Sumida product
L4 = TDK product: RLF5018-220MR63
L6 = TDK product: SLF6028-6R8M1R5
L9 = Toko product: 636CY-100M
www.DataSheet.in
No.8214-4/12
4페이지 LA5683T
SCP Pin
Charging of the SCP block starts when FB1 to FB4 are set to a low level due to a load shorting and the protection
circuit is activated if the block does not reset itself within the preset time tSCP (the protection circuit then turns off the
whole OUT channels).
1.25[V]
Charge with ISCP
Charging
tSCP
=
CSCP × VSCP
ISCP
[S]
tSCP SCP operation
SCP Charging
Dead Time Setup
• The dead time of channel 1 can be set by the voltage at DTC1.
VREF
Waveform of triangular wave input to PWM comparator
DTC1
VDTC1
VTH1_DTC
VDTC1
VTH2_DTC
The duty cycle D1 is calculated as follows:
VDTC1 − VTH2_DTC
D1 =
× 100[ % ]
VTH1_DTC − VTH2_DTC
• Channel 2
The dead time of channe 2 is fixed internally and the setting duty is 100%.
www.DataSheet.in
No.8214-7/12
7페이지 | |||
구 성 | 총 12 페이지수 | ||
다운로드 | [ LA5683T.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 |
LA5683T | Monolithic Linear IC 4ch Switching Regulator Control IC | Sanyo Semicon Device |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |