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부품번호 | LX432ISC 기능 |
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기능 | LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS | ||
제조업체 | Microsemi Corporation | ||
로고 | |||
전체 8 페이지수
T H E I N F I N I T E P O W E R O F I N N O VAT I O N
LX432
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
PRODUCTION DATA SHEET
DESCRIPTION
The LX432 series are low-voltage pre-
cision adjustable shunt regulators
with a reference voltage of 1.24V. The
output voltage may be set to any value
between 1.24V and 20V by two external
resistors.
These devices offer low output im-
pedance for improved load regula-
tion — typical output impedance is
250mΩ. The LX432 series operates with
an operating current as low as 80µA,
making these devices suitable for por-
table and micropower applications.
Low voltage operation enables the
LX432 to be used in the feedback loop
of isolated low voltage power sup-
plies. The minimum output voltage is
determined by the LX432 output voltage
plus the forward voltage drop of the
opto-coupler LED (typically 1.24 + 1.4 =
2.64V minimum). See Figure 10.
The LX432 is offered in 3 and 5-pin
SOT-23 or TO-92 packages, and is a drop-
in replacement for the TLV431 and
SC431L devices.
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
PRODUCT HIGHLIGHT
TYPICAL PROGRAMMABLE VOLTAGE
REFERENCE CIRCUIT
VIN
Cathode
LX432
Anode
Reference
R1
R2
KEY FEATURES
s Low Voltage Operation: 1.24V Reference
s Initial Voltage Reference Accuracy 1%
s Adjustable Output Voltage From V To 20V
REF
s Typical Output Dynamic Impedance Less
Than 250mΩ
s Sink Current Capability 80µA To 20mA
s Direct Alternative To TLV431
A P P L I C AT I O N S
s Low Voltage Adjustable Power Supplies
s Instrumentation
s Computers
s Portable Equipment
VKA
GND
Copyright © 1999
Rev. 1.0 9/99
TA (°C)
0 to 70
-40 to 85
PACKAGE ORDER INFORMATION
SC
Plastic
3-pin
SOT-23
SE
Plastic
5-pin
SOT-23
LP
Plastic
3-pin
TO-92
LX432CSC
LX432ISC
LX432CSE
LX432ISE
LX432CLP
LX432ILP
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX432CSET)
TO-92 (LP) package also available in ammo-pack.
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
LX432
PRODUCT DATABOOK 1996/1997
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
PRODUCTION DATA SHEET
GRAPH / CURVE INDEX
Characteristic Curves
FIGURE #
1. Reference Voltage vs. Junction Temperature
2. Reference Current vs. Junction Temperature
3. Cathode Current vs. Cathode Voltage
4. ∆VREF / ∆VKA vs. Junction Temperature
5. Dynamic Impedance vs. Junction Temperature
6. Minimum Cathode Current For Regulation vs. Junction
Temperature
7. Off-State Current vs. Junction Temperature
8. Equivalent Input Noise Voltage vs. Frequency
FIGURE INDEX
Parameter Measurement Information
FIGURE #
9. Test Circuit For V = V
KA REF
10. Test Circuit For V > V
KA REF
11. Test Circuit For IOFF
Typical Applications
FIGURE #
12. Flyback With Isolation Using LX431 Or LX431A As Voltage
Reference And Error Amplifier
13. LX432 In 3.3V To 2.7V Low Dropout Regulator Application
4 Copyright © 1999
Rev. 1.0 9/99
4페이지 Input
PRODUCT DATABOOK 1996/1997
LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS
PRODUCTION DATA SHEET
PARAMETER MEASUREMENT INFORMATION
VKA
IK
Input
R1
IREF
RVREF
2 VREF
IK
LX432
VKA
FIGURE 9 — Test Circuit For V = V
KA REF
Input
FIGURE 10 — Test Circuit For VKA > VREF
VKA
IOFF
FIGURE 11 — Test Circuit For IOFF
Copyright © 1999
Rev. 1.0 9/99
7
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ LX432ISC.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
LX432ISC | LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS | Microsemi Corporation |
LX432ISE | LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS | Microsemi Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |