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부품번호 | SI-8000TM 기능 |
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기능 | DC/DC Step-Down Converter IC | ||
제조업체 | Sanken | ||
로고 | |||
DC/DC Step-Down Converter IC
SI-8000TM Series
September 2005
■General Descriptions
SI-8000TM series has 300kHz oscillation frequency, so
it contributes miniaturization of a chalk coil.
Therefore, it realizes a compact and high efficient
power supply together with TO 252-5 package
(compatible:SC-63) .
SI-8000TM series has the function required for
switching regulators and protection circuits such as
over-current, and overheating.
With only four discrete components, it realizes a high
efficient switching regulator without adjustment.
1.5A output current by compact power surface mount
package.
■Package---TO252-5
■Applications
●DVD Recorder、FPD TV
●OA equipment, such as a printer
●On-board local power supply
■Key Specifications
■Features
●1.5A output current by compact power surface mount package.
● High Efficiency 81% (at VIN=15V, Io=0.5A,Vo=5V)
● Requires only four discrete components. (C3: required for soft
start.)
●Built-in Oscillation circuit
(oscillation frequency : 300kHz (TYP))
●Constant current type overcurrent protection and overheating
protection.
●Soft start function. (ON/OFF function available. Output OFF at
Low level.)
● Low consumption current at Output OFF.
Input
Voltage
Output
Current
Output
Voltage
Efficiency
(TYP)
SI-8008T
M
(ADJ Type)
0.8V
(REF Voltage)
81%
(5V Set-up)
Typical Connection
SI-8033T
M
SI-8050T
M
43V
0 to 1.5A
3.3V 5.0V
76% 81%
SI-8120T
M
12.0V
87%
C1:220μF
C2:470μF
C3:1μF
(At the time of soft start functional use)
L1:47μH
Di:SFPB66(Sanken)
.
Sanken Electric Co.,Ltd.
http://www.sanken-ele.co.jp/en/
1/15
I02-001EA-050910
DC/DC Step-Down Converter IC
SI-8000TM Series
September 2005
*3 Efficiency is calculated by the following equation.
η(%)=
VO・IO
VIN・IIN
×100
*4 No.5 terminal is a SS terminal to enable soft start by connecting a capacitor. The output can
be turned on and off by using a SS terminal. The output is stopped by decreasing the SS
terminal voltage below VSSL and in order to perform ON/OFF operation of Vout, it is required
to connect NPN transistor or the output of open collector type TTL between No.5 terminal
and GND.
In case that both soft and Vout ON/OFF are used, a protection measure such as limitation of
current is required, as the discharge current of C3 flows across a transistor for ON/OFF
operation, if the capacitance of C3 large. As a pull-up type resistor is provided inside the IC,
no external voltage can be applied. In case of no use of ON/OFF, please keep it open.
SSII--8000000TTMFE
5 SS
SSII--800000TTMFE
5 SS
C3
SSII--8800000TTMFE
5 SS
C3
VO.ON/OFF
Soft start
Soft start
+VO.ON/OFF
4-2 Typical characteristics (Ta=25℃)
(1)Efficiency
SI-80S0I8-T8M00E8TffMic/ieEnTEfcfFfyiEfcEiCifc nfiiuecc効rnyivec率Cneycuy特rv性e
Vo=5VTaA=d2ju5℃ste dV:VooR==155=vV4設a.2d定kjuO時shtemd:, RR21==04.82kkOΩhmR2=0 8kΩ
85
80
75
70
65 VIN=
8v,10v,15v,20v,30v,
40v
60
55
0
0.5
Iout A
1
1.5
Sanken Electric Co.,Ltd.
4/15
I02-001EA-050910
4페이지 DC/DC Step-Down Converter IC
SI-8000TM Series
September 2005
Reference data
SI-8000TM Copper area on PC board vs. thermal resistance.
Area of PC board:3S0I×-33000m0KmM/KMS 銅箔面積ー熱抵抗
100
90
80
70
60
50
40
10
100
Copper are銅a o箔n P面C 積boa rd(㎜(2)mm2)
1000
1.5
1
0.5
0
10
Copper area on PC board vs. Power dissipation
銅箔面Tj積=10-0℃許A容rea損of 失PCTbojmarda:x=301×0300℃mm
100
Copper area銅on箔P面C積bo ar(d㎜2() mm2)
Ta=25℃
40℃
60℃
85℃
1000
・Calculation of junction temperature
The junction temperature can be obtained from the following equation using the Tc that is measured by
thermocouple.
Tj = PD ×θj − C + TC
(θj-c=6℃/W)
Tc measurement point
5. Block diagram (Connection diagram)
●
Sanken Electric Co.,Ltd.
7/15
I02-001EA-050910
7페이지 | |||
구 성 | 총 15 페이지수 | ||
다운로드 | [ SI-8000TM.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 |
SI-8000TFE | Separate Excitation Step-down Switching Mode | ETC |
SI-8000TM | DC/DC Step-Down Converter IC | Sanken |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |