Sanken Electric Co SI-3050R Datasheet
●SI-3000R Series
SI-3000R Seires
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type with Reset Function
■Features
• Reset signal output (As the output rises it sends a reset signal to the microcomputer to secure normal operation of the system. As the output drops a
reset signal is also sent out to protect the system.)
• Reset signal detection output voltage level Voth is 92% of output voltage in
the standard specification. Models with different setting values for different
needs are scheduled to be added to the series.
• Delay time for reset signal can be adjusted freely by external capacitor.
• Compact full-mold package (equivalent to TO220)
• Output current: 1.5A
• Low dropout voltage :VDIF≤1V (at IO=1.5A)
Applicable to battery driven equipment with built-in microcomputer.
• Built-in droping type overcurrent, overvoltage, thermal protection circuits
• Low circuit current ID=typ.1.5mA(IO=0A)
■Applications
• Microcomputer-controlled equipment
• Battery-driven micro-computer-controlled equipment
■Absolute Maximum Ratings
Parameter
DC Input Voltage
Voltage of Rest Signal Output Terminal
DC Output Current
Power Dissipation
Junction Temperature
Ambient Operating Temperature
Storage T emperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient air)
Symbol
VIN
VRST
IO
PD1
PD2
Tj
TOP
Tstg
Rth(j-c)
Rth(j-a)
Ratings
SI-3050R
35
VIN
*1
1.5
18(With infinite heatsink)
1.5(Without heatsink, stand-alone operation)
–30 to +125
–30 to +105
–30 to +125
5.5
66.7(Without heatsink, stand-alone operation)
(Ta=25°C)
Unit
V
V
A
W
W
°C
°C
°C
°C/W
°C/W
52
●SI-3000R Series
■Electrical Characteristics
Ratings
Parameter
Input Voltage
Output Voltage
Dropout Voltage
Line Regulation
Load Regulation
Ripple Rejection
Quiescent Circuit
Current
Overcurrent Protection Starting
Current (Drooping Type)
Limited Current at Overcurrent
Protection Operation
DLY Threshold
Terminal
Reset Threshold V oltage Level
(Voth: Threshold Output Voltage)
Reset Threshold Voltage Hysteresis
VRST
Terminal*4
*1: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)•IO=18(W).
*2: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.)
*3: IS1 is specified at –5(%) drop point of output voltage VO on the condition that VIN=8V, IO=1.0A.
*4: Reset signal output terminal VRST is an open-collector output. Use a pull-up resistor when connecting it to a logic circuit.
Source
H-level Output Voltage
L-level Output Voltage
Sink Current at H level
Source Current at L level
Symbol
VIN
Conditions
VDIF
Conditions
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
RREJ
Conditions
Conditions
Conditions
Conditions
VDLyth
IDLY
Voth/VO
∆Voth
VRSTH
VRSTL
IRSTH
IRSTL
VO
IS1
IS2
SI-3050R
min. typ. max.
*2
6
4.80 5.00 5.20
VIN=8V, IO=1.0A
IO≤1.0A
IO≤1.5A
VIN=6 to 15V, IO=1.0A
VIN=8V, IO=0 to 1.5A
54
VIN=8V, f=100 to 120HZ
Iq
1.6
1.6
2.7 2.9 3.1
25 35 45
90 92 94
50 100 150
VCC–1
–16
1.5 5.0
VIN=8V, IO=0A
VIN=8V
VIN=8V
(Ta=25°C unless otherwise specified)
30
0.5
1.0
30
100
0.8
–20
Unit
*1
V
V
V
mV
mV
dB
mA
A
A
V
µA
%
mV
V
V
µA
mA
53
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