SPI-8000A_11 SANKEN [Sanken electric], SPI-8000A_11 Datasheet
SPI-8000A_11
Manufacturer Part Number
SPI-8000A_11
Description
Surface Mount, Separate Excitation Step-down Switching Mode
Manufacturer
SANKEN [Sanken electric]
Datasheet
1.SPI-8000A_11.pdf
(3 pages)
1-1-3 DC/DC Converter ICs
■Features
■Applications
■Recommended Operating Conditions
*1: The minimum value of an input voltage range is the higher of either 8V or V
*2: Please be sure to let the output current run more than 20 mA. When using by less than 20 mA, there is a possibility that the output voltage becomes unstable.
■Electrical Characteristics
* Pin 4 is the CE/SS pin. Soft start at power on can be performed with a capacitor connected to
DC Input Voltage Range
Output Voltage Range
Output Current Range
Operating Junction Temperature Range
Operating Temperature Range
• Surface-mount 16 pin package
• Output current: 3.0A
• High efficiency: 91% (at V
• Capable of downsizing a choke-coil due to IC's
• The output-voltage-variable type can vary its
• Wide Input Voltage Range (8 to 50V)
• Output ON/OFF available
• Built-in overcurrent and thermal protection
• Onboard local power supplies
• OA equipment
• For stabilization of the secondary-side output voltage of switching power supplies
SPI-8000A Series
Reference Voltage
Efficiency
Oscillation Frequency
Line Regulation
Load Regulation
Temperature Coefficient of
Reference Voltage
Overcurrent Protection
Starting Current
Quiescent Circuit Current
Circuit Current at Output OFF
CE/SS
Terminal
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 V
collector drive circuit of a transistor. When using both the soft-start and ON/OFF functions
together, the discharge current from C
limit the current securely to protect the transistor if C
The CE/SS pin is pulled up to the power supply in the IC, so applying the external voltage is
prohibited.
22
= 5V)
high switching frequency (125kHz). (Com-
pared with conventional Sanken devices)
output voltage from 1V to 14V because of its
low reference voltage (Vref) of 1V.
circuits
Parameter
ICs
Low Level Voltage
Outflow Current at
Low Voltage
Parameter
*2
SSL
IN
or lower. CE/SS-pin voltage can be changed with an open-
= 10V, l
∆V
∆V
Symbol
∆V
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
Conditions
F
I
V
REF
V
q
I
Eff
OLOAD
OSC
SSL
REF
OLINE
I
I
(
SSL
S
q
off
4
/∆T
)
O
flows into the ON/OFF control transistor. Therefore,
= 1A, V
a
Surface Mount, Separate Excitation Step-down Switching Mode
O
3
Symbol
capacitance is large.
T
V
T
V
I
O
jop
op
■Absolute Maximum Ratings
*1: Limited due to thermal protection.
*2: When mounted on glass-epoxy board 700cm
IN
O
DC Input Voltage
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient air)
0.97
min.
3.1
Parameter
O
+3V.
SPI-8010A (Variable type)
V
V
V
V
IN
IN
IN
IN
=20V, I
=12V, I
=12V, V
V
V
V
Symbol
=10 to 30V, I
P
IN
IN
IN
θ
θ
V
D *1, *2
T
T
j-c *2
j-a *2
(8 or V
=12V, I
=12V, I
=12V, I
V
stg
V
IN
j
Rating
IN
SSL
1.00
±0.5
0.02 to 3.0
typ.
250
–30 to +125
–30 to +125
O
O
86
20
10
SPI-8010A
=12V
7
=1A, V
=0.1 to 1.5A
ON/OFF
=0V
V
2
Ratings
1 to 14
(copper laminate area 30.8cm
o
O.
O
O
O
+3)
=1A
=1A
=0A
SPI-8000A
4
ON/OFF
O
=0.3V
*1
O
=1A
=5V
to 50
CE/SS
*2
–40 to +125
Ratings
+125
2.4
53
18
50
SPI-8000A
Soft start
4
2
CE/SS
).
C4
max.
1.03
400
0.5
40
30
50
+V
SPI-8000A
Soft start
O.
4
Unit
°C
°C
ON/OFF
V
V
A
CE/SS
°C/W
°C/W
Unit
°C
°C
W
V
mV/°C
Unit
kH
mV
mV
mA
µ A
µ A
%
(T
(T
V
A
V
C4
Z
a
a
=25°C)
=25°C)
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SPI-8000A_11 Summary of contents
Page 1
... When mounted on glass-epoxy board 700cm (copper laminate area 30.8cm Ratings Symbol SPI-8010A 0. –30 to +125 jop T –30 to +125 op +3V. O Rating SPI-8010A (Variable type) min. typ. 0.97 1.00 V =12V =20V, I =1A 250 V =12V =10 to 30V ...
Page 2
... Diagram 9 8 0.25+0.15/-0.05 0.10 S (11 0.4+0.15/-0.05 SPI-8010A UVLO P.REG OCP CE/SS CE/SS Boot REG TSD DRIVE Reg OSC + PWM - LOGIC Comp - Amp + GND SPI-8000A Series 1+0.1/-0.05 (Heatsink thickness) Pin Assignment 1.AGND 2.N.C 3.DGND 4.CE/SS 5.Reg 6.N.C 7.SW OUT 8.N.C 9.N.C 10.N.C 11.V IN 12.B.S 13.N.C 14.C omp 15.V REF 16.N.C Product Mass : Approx 0.86g OUT V REF ...
Page 3
... Ambient Temperature T 24 ICs SPI-8010A OUT SPI-8010A 7 D1 CE/ Reg Comp AGND DGND REF REF other diodes like fast recovery diodes are used, ICs may be destroyed because of the reverse voltage 1 , use high-frequency and low-impedance capacitors aiming for switching-mode-power-supply use. Especially 2 becomes approx ...