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參數(shù)資料
| 型號： | SI-8090E |
| 廠商： | SANKEN ELECTRIC CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Separate Excitation Switching Regulator IC(9V他勵開關(guān)穩(wěn)壓器芯片) |
| 中文描述： | 0.6 A SWITCHING REGULATOR, 60 kHz SWITCHING FREQ-MAX, PZFM5 |
| 封裝： | PLASTIC, FULL PACK-5 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 64K |
| 代理商： | SI-8090E |
70
I
Block Diagram
I
Standard External Circuit
I
T
a
-P
D
Characteristics
SW
OUT
V
OS
V
IN
3
GND
5
N.C
4
2
1
OSC
Reg.
OCP
Comp.
Reset
Drive
TSD
Amp.
V
REF
V
IN
C
1
D
1
L
1
5V
: 200
μ
H
9V
,
12V: 300
μ
H
100
μ
F
V
IN
V
O
AK06
(Sanken)
GND
NC
GND
GND
SI-8000E
SW
OUT
V
OS
1
2
3
+
C2
330
μ
F
+
5
4
15
10
5
0
–
30
0
25
50
Ambient Operating Temperature T
a
(
°
C)
P
D
75
100
125
20
×
20
×
2mm(.
°
CW
100
×
100
×
2mm(52
CW
75
×
75
×
2mm(76
°
CW
Infinite heatsink
Without heatsink
With Silicon Grease
Heatsink: Aluminum
G
SI-8000E Series
I
Selecting External Components
1. Inductor L
1
1) It must be suited for switching regulators.
Do not use inductors such as noise filters, because they generate excessive heat.
2) It must have the appropriate inductance value.
If the inductance is too small (150
μ
H or lower), abnormal oscillation may occur causing operation problems in the overcurrent protection
circuit within the rated current range.
3) The rated current must be satisfied.
If the rated current is exceeded, magnetic saturation leads to overcurrent.
2. Capacitors C
1
and C
2
1) They must satisfy the breakdown voltage and allowable ripple current.
Exceeding the ratings of these capacitors or using them without derating shortens their service lives and may also cause abnormal
oscillation of the IC.
2) C
2
should a low-impedance type capacitor.
A low-impedance type capacitor is recommended for C
2
to ensure reduced ripple voltage and stable switching operation.
3. Diode D
1
The Sanken AK06 diode is recommended for D
1
. If you intended to use an equivalent diode, be sure to use a Schottky Barrier diode and make
sure that the reverse voltage applied to terminal 2 of the IC does not exceed the value (
–
1V) given in the absolute maximum ratings. If you use
a fast recovery diode or any other diode, supplying a reverse voltage generated from the recovery or ON voltage of the diode may damage the
IC.
Application
Variable output voltage
Output voltage can be adjusted in the same way as SI-8000S in page 77.
The efficiency depends on the input voltage and the out-
put current. Thus, obtain the value from the efficiency
graph on page 71 and substitute the percentage in the
formula above.
V
O
: Output voltage
V
IN
: Input voltage
I
O
: Output current
η
x : Efficiency (%)
V
F
: Diode forward voltage
0.4V(AK06)
Thermal design for D
1
must be considered separately.
P
D
=V
O
I
O
100
–
1
–
V
F
I
O
1
–
V
O
ηχ
V
IN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI-8200L | Self Oscillating Switching Type with Coil |
| SI-8301 | Self Oscillating Switching Type with Coil |
| SI-8213 | Self Oscillating Switching Type with Coil |
| SI-8201L | Self Oscillating Switching Regulator with Coil(5V帶線圈自激振蕩開關(guān)穩(wěn)壓器) |
| SI-8301L | Self Oscillating Switching Regulator with Coil(5V帶線圈自激振蕩開關(guān)穩(wěn)壓器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI-8090J | 制造商:Panasonic Industrial Company 功能描述:IC |
| SI-8090JD | 制造商:SANKEN 制造商全稱:Sanken electric 功能描述:Surface-Mount Separate Excitation Step-down Switching Mode Regulator ICs |
| SI-8090JD-TL | 制造商:Sanken Electric Co Ltd 功能描述:IC REG BUCK 9V 1.5A TO263-5 |
| SI-8090JF | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Step-Down to 9.0 V, 1.5 A, DC/DC Converter |
| SI-8090S | 制造商:Panasonic Industrial Company 功能描述:IC 制造商:Allegro MicroSystems 功能描述:IC, LINEAR VOLTAGE REGULATOR 9V TO-220-5; Primary Input Voltage:40V; Output Voltage Min:8.55V; Output Voltage Max:9.45V; Output Voltage Fixed:9V; No. of Pins:5; No. of Outputs:1; Output Current:3A; Operating Temperature Min:-30C ;RoHS Compliant: Yes |
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