BA15ST [ETC]
VOLT REGULATOR|FIXED|+15V|BIPOLAR|SIP|5PIN|PLASTIC ; VOLT稳压器|固定| + 15V |双极| SIP | 5PIN |塑料\n
| 型号： | BA15ST |
| 厂家： | 
ETC |
| 描述： | VOLT REGULATOR|FIXED|+15V|BIPOLAR|SIP|5PIN|PLASTIC
|
| 文件： | 总12页 (文件大小：245K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Standard ICs
Low saturation voltage type regulator
with ON / OFF switch
BAffST series
The BAffST series are variable, fixed output low drop-out type voltage regulators with an ON / OFF switch. These
regulators are used to provide a stabilized output voltage from a fluctuating DC input voltage.
Fixed output voltages are 3V , 3.3V, 5V, 6V 7V, 8V, 9V, 10V, 12V, and 15V . The maximum current capacity is 1A for
each of the above voltages. (Items marked with an asterisk are under development.)
Applications
ꢀ
Constant voltage power supply
Features
ꢀ
1) Built-in overvoltage protection circuit, overcurrent
protection circuit and thermal shutdown circuit.
2) TO220FP-5 package can be used in wide range of
applications.
3) 0µA (design value) circuit current when switch is off.
4) Richly diverse lineup.
5) Low minimum I / O voltage differential.
Product codes
ꢀ
Absolute maximum ratings (Ta = 25°C)
ꢀ
15
Standard ICs
BAffST series
Block diagram
ꢀ
16
Standard ICs
BAffST series
Pin descriptions
ꢀ
ꢀ
Recommended operating conditions
BA00ST
BA08ST
BA03ST (under development)
BA09ST
BA033ST
BA10ST
BA05ST
BA12ST
BA06ST (under development)
BA15ST (under development)
BA07ST
17
Standard ICs
BAffST series
Electrical characteristics
ꢀ
BA00ST (unless otherwise noted, Ta = 25°C, VCC = 10V, Io = 500mA)
BA03ST (unless otherwise noted, Ta = 25°C, VCC = 8V, Io = 500mA) (under development)
18
Standard ICs
BAffST series
BA033ST (unless otherwise noted, Ta = 25°C, VCC = 8V, Io = 500mA)
BA05ST (unless otherwise noted, Ta = 25°C, VCC = 10V, Io = 500mA)
19
Standard ICs
BAffST series
BA06ST ( unless otherwise noted, Ta = 25°C, VCC = 11V, Io = 500mA) (under development)
BA07ST (unless otherwise noted, Ta = 25°C, VCC = 12V, Io = 500mA)
20
Standard ICs
BAffST series
BA08ST (unless otherwise noted, Ta = 25°C, VCC = 13V, Io = 500mA)
BA09ST (unless otherwise noted, Ta = 25°C, VCC = 14V, Io = 500mA)
21
Standard ICs
BAffST series
BA10ST (unless otherwise noted, Ta = 25°C, VCC = 15V, Io = 500mA)
BA12ST (unless otherwise noted, Ta = 25°C, VCC = 17V, Io = 500mA)
22
Standard ICs
BAffST series
BA15ST (unless otherwise noted, Ta = 25°C, VCC = 20V, Io = 500mA) (under development)
23
Standard ICs
BAffST series
Measurement circuits
ꢀ
(The C pin only exists on the BA00AST, For the BA00AST, place a 6.8 kΩ resistor between the OUT and C pins, and
a 2.2 kΩ resistor between the C and GND pins.)
24
Standard ICs
BAffST series
Operation notes
ꢀ
(1) Operating power supply voltage
puts, to prevent IC destruction if the load is shorted.
This protection circuit limits the current in the shape of a
’7’. Itisdesignedwithahighmargin, sothatevenifalarge
current suddenly flows through the large capacitor in the
IC, the current is restricted and latching is prevented.
However, these protection circuits are only good for pre-
venting damage from sudden accidents. The design
should take this into consideration, so that the protection
circuit is not made to operate continuously (for instance,
clamping at an output of 1VF or greater; below 1VF, the
short mode circuit operates). Note that the capacitor has
negative temperature characteristics, and the design
should take this into consideration.
When operating within the normal voltage range and
within the ambient operating temperature range, most
circuitfunctionsareguaranteed. Theratedvaluescannot
be guaranteed for the electrical characteristics, but there
are no sudden changes of the characteristics within
these ranges.
(2) Power dissipation
Heat attenuation characteristics are noted on a separate
page and can be used as a guide in judging power dis-
sipation.
If these ICs are used in such a way that the allowable
power dissipation level is exceeded, an increase in the
chip temperature could cause a reduction in the current
capability or could otherwise adversely affect the perfor-
mance of the IC. Make sure a sufficient margin isallowed
so that the allowable power dissipation value is not ex-
ceeded.
(5) Thermal overload circuit
A built-in thermal overload circuit prevents damage from
overheating. When the thermal circuit is activated, the
various outputs are in the OFF state. When the tempera-
ture drops back to a constant level, the circuit is restored.
(6) Internal circuits could be damaged if there are
modes in which the electric potential of the application’s
input (VCC) and GND are the opposite of the electric po-
tentialofthevariousoutputs. Useofadiodeorothersuch
bypass path is recommended.
(3) Output oscillation prevention and bypass capacitor
Be sure to connect a capacitor between the output pin
and GND to prevent oscillation. Since fluctuations in the
valve of the capacitor due to temperature changes may
cause oscillations, a tantalum electrolytic capacitor with
a small internal series resistance (ESR) is recom-
mended.
(7) Although the manufacture of this product includes
rigorous quality assurance procedures, the product may
be damaged if absolute maximum ratings for voltage or
operating temperature are exceeded. If damage has oc-
curred, special modes (such as short circuit mode or
open circuit mode) cannot be specified. If it is possible
that such special modes may be needed, please consid-
er using a fuse or some other mechanical safety mea-
sure.
A 22µ F capacitor is recommended; however, be aware
that if an extremely large capacitance is used (1000µ F
or greater), then oscillations may occur at low frequen-
cies. Therefore, be sure to perform the appropriate verifi-
cations before selecting the capacitor.
Also, we recommend connecting a 0.33µ F bypass ca-
pacitor as close as possible between the input pin and
GND.
(8) When used within a strong magnetic field, be aware
that there is a slight possibility of malfunction.
(4) Current overload protection circuit
A current overload protection circuit is built into the out-
25
Standard ICs
BAffST series
Electrical characteristic curves
ꢀ
External dimensions (Units: mm)
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26
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