SANKEN SI

●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
(Ta=25°C)
Symbol
Ratings
Unit
SI-3050R
DC Input Voltage
Voltage of Rest Signal Output Terminal
DC Output Current
Power Dissipation
Junction Temperature
Ambient Operating Temperature
VIN
35
V
VRST
VIN
V
IO
1.5*1
A
PD1
18(With infinite heatsink)
W
PD2
1.5(Without heatsink, stand-alone operation)
W
Tj
–30 to +125
°C
TOP
–30 to +105
°C
Tstg
–30 to +125
°C
Thermal Resistance (junction to case)
Rth(j-c)
5.5
°C/W
Thermal Resistance (junction to ambient air)
Rth(j-a)
66.7(Without heatsink, stand-alone operation)
°C/W
Storage Temperature
52
●SI-3000R Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
SI-3050R
min.
Input Voltage
Output Voltage
VIN
6*2
VO
4.80
Conditions
typ.
30*1
5.00
5.20
V
V
VIN=8V, IO=1.0A
VDIF
Dropout Voltage
Unit
max.
0.5
IO≤1.0A
Conditions
V
1.0
IO≤1.5A
Conditions
Line Regulation
∆VOLINE
30
Conditions
Load Regulation
∆VOLOAD
100
Conditions
Ripple Rejection
Current
RREJ
54
Current (Drooping Type)
Iq
Limited Current at Overcurrent
IS1
1.5
5.0
mA
VIN=8V, IO=0A
1.6
Conditions
IS2
dB
VIN=8V, f=100 to 120HZ
Conditions
Overcurrent Protection Starting
mV
VIN=8V, IO=0 to 1.5A
Conditions
Quiescent Circuit
mV
VIN=6 to 15V, IO=1.0A
A
VIN=8V
1.6
A
Protection Operation
Conditions
DLY
VDLyth
2.7
2.9
3.1
V
IDLY
25
35
45
µA
Voth/VO
90
92
94
%
100
150
mV
Threshold
Terminal Source
Reset Threshold Voltage Level
VIN=8V
(Voth: Threshold Output Voltage)
∆Voth
50
H-level Output Voltage
VRSTH
VCC–1
VRST
L-level Output Voltage
Terminal*4 Sink Current at H level
VRSTL
Reset Threshold Voltage Hysteresis
Source Current at L level
IRSTH
IRSTL
V
0.8
–20
–16
V
µA
mA
*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.
53
●SI-3000R Series
■Reset Signal Output Timing Chart
VIN
Input Voltage
VO+VDIF
GND
VO
Voth
Voth
Output Voltage
GND
VDLY
Voltage Across
Delay Capacitor
The delay time tDLY of the reset signal can
be calculated from the following formula:
VDLYth
O(V)
tDLY=
VRSTH
VDLYth
× CDLY
IDLY
Reset Signal Output
*IDLY is the current flowing from the DLY
terminal shown in the standard connection circuit diagram.
VRSTL
O(V)
tDLY
tRESET (mim.)
Vo drops for a period
less than tRESET (min)
tDLY
■Outline Drawing
(unit:mm)
φ 3.2±0.2
4.2±0.2
±0.2
2.8
Part Number
Lot Number
(2.0)
(8.0)
+0.2
0.85 –0.1
(4.6)
0.95±0.15
+0.2
0.45 –0.1
P1.7±0.7×4=6.8±0.7
1 2 3 4 5
54
3.9±0.7
5.0±0.6
2.6±0.1
(4.3)
8.2±0.7
Forming No. 1101
(17.9)
16.9±0.3
4.0±0.2
7.9±0.2
10.0
0.5
±0.2
Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 2.3g
Terminal Connections
q
w
e
r
t
GND
DELAY
VO
Rest Signal output
VIN
●SI-3000R Series
■Block Diagram
Tr1
5
3
Reset
Amp.
4
VREF
TSD
OCP, OVP
Drive
Reg.
MIC
2
1
■Standard External Circuit
C0
*1 C1
*4 D1
5
3
*3
SI-3050R
*1C1
DC Input
VO
1
+
2
R1
4
C0
+
Reset Signal
Output Terminal
*2 CDLY
*3 R1
*4 D1
D2
*2
*4 D2
DC Output
VO
CDLY
: Output capacitor (Approx. 200µF)
: Oscillation prevention capacitor (C1: Approx. 47µF)
The distance between terminals No.5 (VIN) and No.1 (GND)
must be made as short as possible. If the input line is inductive or in the case of long wiring, a capacitor of approximately 0.33µF with superior high frequency characteristics
must be connected in parallel. Tantalum capacitors are recommended for C1 and C0, particularly at low temperatures.
: Delay capacitor (reset output)
: Pull-up resistor (300Ω or above)
: Protection diodes
These diodes are required for protection against reverse
biasing of the input and output. Sanken EU2Z is recommended.
■Ta-PD Characteristics
20
Power Dissipation PD (W)
Infinite heatsink
With Silicon Grease
Heatsink: Aluminum
15
200×200×2mm (2.3°C/W)
10 100×100×2mm (5.2°C/W)
75×75×2mm (7.6°C/W)
5
Without heatsink
0
–30
0
25
50
75
100
Ambient Temperature Ta (°C)
PD=IO•[VIN(mean)–VO]
55
●SI-3000R Series
■Typical Characteristics
(Ta=25°C)
IO vs. VDIF Characteristics
Temperature Coefficient of Output Voltage
6
VIN=8V
lO=10mA
0.6
0.4
0.2
5
5.02
Output Voltage VO (V)
Output Voltage VO (V)
5.04
Dropout Voltage VDIF (V)
Rise Characteristics
5.06
0.8
5.00
4.98
4.96
4.94
0.5
1.0
1.5
lO=0A
0.5A
1A
1.5A
3
2
1
4.92
0
0
4
4.90
–40 –20
0
20
40
60
0
0
80 100 120 140
1
2
Output Current lo (A)
Circuit Current
Overcurrent Protection Characteristics
25
3
4
5
6
7
8
Input Voltage VIN (V)
Ambient Temperature Ta (°C)
Thermal Protection Characteristics
6
6
5
5
lO=1
.5A
1A
5
8V
15V
20V
25V
Output Voltage Vo (V)
10
4
6V
15
VIN=30V
20
Output Voltage VO (V)
Ground Current IG (mA)
VIN=8V
lO=10mA
3
2
3
2
1
1
0.5A
4
0A
0
0
5
10
15
20
25
0
0
30
0.5
1
1.5
2
2.5
0
60
3
80
Output Current lO (A)
Input Voltage VIN (V)
100
120
140
160
180
Case Temperature TC (°C)
Note on Thermal Protection:
The thermal protection circuit is intended for protection against heat during instantaneous shortcircuiting. Its operation is not guaranteed for shortcircuiting over extended periods of time.
Reset Output vs. VO Characteristics
Reset Output vs. DLY Terminal Voltage Characteristics
3
2
1
3.5
4.0
4.5
5.0
5.5
6.0
10
VIN=8V lO=0A
RL=510Ω
VIN=8V
lO=0A
5
1
Delay Time tDLY (sec.)
4
Output Voltage VO (V)
56
Reset Output Voltage VRST (V)
Reset Output Voltage VRST (V)
VIN=8V lO=0A
RL=510Ω
5
0
3.0
Reset Signal Delay Time tDLY(sec)
6
6
4
3
2
1
0
1.0
100m
10m
1m
100µ
1.5
2.0
2.5
3.0
3.5
DLY Terminal Voltage VDLY (V)
4.0
10µ
1p
10p
100p 1000p 0.01µ 0.1µ
1µ
10µ
Delay Capacitor Capacitance CDLY (F)