L4915 반도체 회로 부품 판매점
ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER
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 STMicroelectronics |
L4915
ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER
. OUTPUT VOLTAGE ADJUSTABLE FROM
4 TO 11V
. HIGH OUTPUT CURRENT (up to 250mA)
. HIGH RIPPLE REJECTION
. HIGH LOAD REGULATION
. HIGH LINE REGULATION
. SHORT CIRCUIT PROTECTION
. THERMAL SHUT DOWN WITH HYSTERESIS
. DUMP PROTECTION
PRELIMINARY DATA
DESCRIPTION
This circuit combines both a filter and a voltage
regulator in order to provide a high ripple rejection
over a wide input voltage range.
A supervisor low-pass loop of the element prevents
the output transistor from saturation at low input
voltage.
The non linear behaviour of this control circuitry
allows a fast settling of the filter.
PIN CONNECTION
POWER MINIDIP
ORDERING NUMBER : L4915
June1993
1/7
L4915
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Vi
Vi
IO
Ptot
Tstg
Parameter
Peak Input Voltage (300 ms)
DC Input Voltage
Output Current
Power Dissipation
Storage and Junction Temperature
Value
40
28
Internally Limited
Internally Limited
– 40 to 150
Unit
V
V
°C
THERMAL DATA
Symbol
Rth j-amb
Rth j-pins
Parameter
Thermal Resistance Junction-ambient
Thermal Resistance Junction-pins
Max.
Max.
Value
80
20
Unit
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(Tamb = 25oC; Vi = 13.5 V, VO = 8.5V, circuit of Fig. 1, unless otherwise specified)
Symbol
Vi
Vo
∆VI/O
∆VO
∆Vo
∆Vo
Vref
Iq
∆Iq
IAD
Parameter
Input Voltage
Output Voltage
Controlled Input-output Dropout Voltage
Line Regulation
Load Regulation
Load Regulation (filter mode)
Internal Voltage Reference
Quiescent Current
Quiescent Current Change
Adjust Input Current
Test Conditions
Vi = 6 to 18V, Io = 5 to 150mA
Io = 5 to 150mA, Vi = 6 to 10V
Vi = 12 to 18V, Io = 10mA
Io = 5 to 250mA,
ton = 30µs, toff = ≥ 1ms
Vi = 8.5V, Io = 5 to 150mA
ton = 30µs, toff =≥ 1ms
Io = 5 mA
Vi = 6 to 18V, Io = 5 to 150mA
Min.
4
Typ.
1.6
1
50
150
2.5
1
0.05
40
Max.
20
11
2.1
20
100
250
2
Unit
V
V
V
mV
mV
mV
V
mA
mA
nA
2/7
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제조업체: STMicroelectronics
( stm )
L4915 regulator
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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