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SI-8000TM 数据表(PDF) 1 Page - Sanken electric

部件名 SI-8000TM
功能描述  Surface-Mount, Separate Excitation Step-down Switching Mode
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制造商  SANKEN [Sanken electric]
网页  http://www.sanken-ele.co.jp/en
标志 SANKEN - Sanken electric

SI-8000TM 数据表(HTML) 1 Page - Sanken electric

  SI-8000TM Datasheet HTML 1Page - Sanken electric SI-8000TM Datasheet HTML 2Page - Sanken electric  
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18
ICs
1-1-3 DC/DC Converter ICs
Surface-Mount, Separate Excitation Step-down Switching Mode
SI-8000TM Series
■Absolute Maximum Ratings
Unit
V
W
°C
°C
°C/W
°C/W
Ratings
43
1.06
1.65
–30 to +150
–40 to +150
6
95
Symbol
VIN
PD1
PD2
Tj
Tstg
θj-c
θj-a
Parameter
DC Input Voltage
Power Dissipation
Junction Temperature*
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to
Ambient Air)
■Features
• Compact surface-mount package (TO252-5)
• Output current: 1.5 A
• High efficiency: 81% typ. (at Vo = 5 V)
• Requires only 4 discrete components
• Built-in reference oscillator (300 kHz)
• Built-in drooping-type-overcurrent and thermal
protection circuits
• Output ON/OFF available (circuit current at
output OFF: 200 µA typ.)
• Soft start available by ON/OFF pin
Conditions
When mounted on glass-epoxy board (900 mm2 copper area 4.3%)
When mounted on glass-epoxy board (900 mm2 copper area 50%)
When mounted on glass-epoxy board (900 mm2 copper area 4.3%)
*: This product has built-in thermal protection circuits that may operate when the junction temperature rises above
130°C.
The recommended design for the junction temperature during operation is below 125°C.
■Applications
• Onboard local power supplies
•AV equipment
•OA equipment
■Recommended Operating Conditions
Parameter
Input Voltage Range
Output Voltage
Output Current Range
Operating Junction Temperature Range
Operating Temperature Range
Symbol
VIN
VO
IO
Tjop
Top
Ratings
SI-8008TM
VO+3*1 to 40
0.8 to 24
0 to 1.5
–20 to +100
–20 to +85
Unit
V
V
A
°C
°C
*1: The minimum value of an input voltage range is the higher of 4.5 V or VO + 3 V.
■Electrical Characteristics
(Ta=25°C)
Parameter
Symbol
Unit
Rating
SI-8008TM
min.
0.784
1.6
typ.
0.800
VIN=15V, Io=0.1A
max.
0.816
80
Reference Voltage
Efficiency
Oscillation Frequency
Line Regulation
Load Regulation
Overcurrent Protection Starting Current
VADJ
∆VOLOAD
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
±0.1
VIN=15V, Io=0.1A, Tc=0 to 100
°C
81
VIN=15V, Io=0.5A
∆VADJ/∆T
η
10
VSSL=0V
0.5
40
10
VIN=15V, Io=0.2 to 1.5A
40
300
VIN=15V, Io=0.5A
fo
60
VIN=10 to 30V, Io=0.5A
∆VOLINE
6
VIN=15V, Io=0A
VIN=15V
Iq
200
VIN=15V, VSS=0V
400
Iq (OFF)
VSSL
ISSL
IS
V
mV/
°C
%
kHz
mV
mV
A
V
µA
mA
µA
ON/OFF Pin*
Quiescent Circuit Current
Low Level Voltage
Outflow Current
at Low Voltage
Temperature Coefficient of
Reference Voltage
*: Pin 5 is the SS pin. Soft start at power on can be performed with a capacitor connected to this pin. The
output can also be turned ON/OFF with this pin.
The output is stopped by setting the voltage of this pin to VSSL or lower. SS-pin voltage can be changed
with an open-collector drive circuit of a transistor. When using both the soft-start and ON/OFF functions
together, the discharge current from C3 flows into the ON/OFF control transistor. Therefore, limit the
current securely to protect the transistor if C3 capacitance is large. The SS pin is pulled up to the power
supply in the IC, so applying the external voltage is prohibited. If the pin is not used, leave it open.
SI-8000TM
SI-8000TM
SS
5SS
5SS
C3
C3
5
VO. ON/OFF
Soft start
Soft start
+VO. ON/OFF
SI-8000TM


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