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LM4051AIM3-ADJ 데이터시트 PDF




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부품번호 LM4051AIM3-ADJ 기능
기능 Precision Micropower Shunt Voltage Reference
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LM4051AIM3-ADJ 데이터시트, 핀배열, 회로
February 2000
LM4051
Precision Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4051 precision
voltage reference is available in the sub-miniature (3 mm x
1.3 mm) SSOT-23 surface-mount package. The LM4051’s
advanced design eliminates the need for an external stabiliz-
ing capacitor while ensuring stability with any capacitive
load, thus making the LM4051 easy to use. Further reducing
design effort is the availability of a fixed (1.225V) and adjust-
able reverse breakdown voltage. The minimum operating
current is 60 µA for the LM4051-1.2 and the LM4051-ADJ.
Both versions have a maximum operating current of 12 mA.
The LM4051 comes in three grades (A, B, and C). The best
grade devices (A) have an initial accuracy of 0.1%, while the
B-grade have 0.2% and the C-grade 0.5%, all with a tempco
of 50 ppm/˚C guaranteed from −40˚C to 125˚C.
The LM4051 utilizes fuse and zener-zap trim of reference
voltage during wafer sort to ensure that the prime parts have
an accuracy of better than ±0.1% (A grade) at 25˚C.
Features
n Small packages: SSOT-23
n No output capacitor required
n Tolerates capacitive loads
n Reverse breakdown voltage options of 1.225V and
adjustable
Key Specifications (LM4051-1.2)
n Output voltage tolerance
(A grade, 25˚C)
n Low output noise
(10 Hz to 10kHz)
n Wide operating current range
n Industrial temperature range
(tempco guaranteed from
−40˚C to +125˚C)
n Low temperature coefficient
±0.1%(max)
20µVrms
60µA to 12mA
−40˚C to +85˚C
50 ppm/˚C (max)
Applications
n Portable, Battery-Powered Equipment
n Data Acquisition Systems
n Instrumentation
n Process Control
n Energy Management
n Automotive and Industrial
n Precision Audio Components
n Base Stations
n Battery Chargers
n Medical Equipment
n Communication
Connection Diagrams
SSOT-23
DS101222-1
*This pin must be left floating or connected to pin 2.
Top View
See NS Package Number MF03A
DS101222-40
© 2000 National Semiconductor Corporation DS101222
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LM4051AIM3-ADJ pdf, 반도체, 판매, 대치품
LM4051-ADJ (Adjustable)
Electrical Characteristics
Boldface limits apply for TA = TJ = TMINto TMAX; all
,±I0R.M2I%N
IR
and
±01.25%m,Ar,eVspReEcFtiveVlyOUfoTr
10V. The grades
VOUT = 5V.
other limits
A, B and C
TJ = 25˚C
designate
unless otherwise
initial Reference
specified (SSOT-23, see (Note
Voltage Tolerances of ±0.1%,
7)
Symbol
Parameter
Conditions
Typical LM4051AIM3 LM4051BIM3 LM4051CIM3
(Note 4) (Note 5)
(Note 5)
(Note 5)
Units
(Limit)
VREF
Reference Voltage
Reference Voltage
Tolerance (Note 6),
(Note 8)
IR = 100 µA, VOUT = 5V
IR = 100 µA, VOUT = 5V
1.212
±1.2
±5.2
±2.4
±6.4
±6
±10.1
V
mV (max)
mV (max)
IRMIN
Minimum Operating
Current
36 µA
60 60 65 µA (max)
65 65 70 µA (max)
VREF/IR Reference
IRMIN IR 1mA
0.3
mV
VoltageChange with
VOUT 1.6V
1.1 1.1 1.1 mV (max)
Operating Current
(Note 7)
1.5 1.5 1.5 mV(max)
Change
1 mA IR 12 mA
0.6
mV
VOUT 1.6V(Note 7)
6 6 6 mV (max)
8 8 8 mV (max)
VREF/VO Reference Voltage
Changewith Output
Voltage Change
IR = 0.1 mA
−1.69
−2.8
−3.5
−2.8
−3.5
−2.8
−3.5
mV/V
mV/V (max)
mV/V (max)
IFB Feedback Current
70 nA
130 130 130 nA (max)
150 150 150 nA (max)
VREF/T
Average
ReferenceVoltage
Temperature
Coefficient (Note 8)
VOUT = 2.5V
IR = 10mA
IR = 1mA
IR = 100µA
20 ppm/˚C
15 ppm/˚C
15 ±50 ±50 ±50 ppm/˚C
(max)
T = −40˚C to +125˚C
ZOUT
Dynamic Output
Impedance
eN Wideband Noise
IR = 1 mA,
f = 120 Hz,
IAC = 0.1 IR
VOUT = VREF
VOUT = 10V
IR = 100 µA
VOUT = VREF
10 Hz f 10 kHz
0.3
2
20
µVrms
VREF
Reference Voltage
Long Term Stability
(Note 9)
t = 1000 hrs,
IR = 100 µA
T = 25˚C ±0.1˚C
120
ppm
VHYST
Output Hysteresis
(Note 10)
T = −40˚C to +125˚C
0.3
mV/V
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LM4051AIM3-ADJ 전자부품, 판매, 대치품
Typical Performance Characteristics (Continued)
Feedback Current vs Output
Voltage and Temperature
Output Saturation
(SOT-23 Only)
Output Impedance vs Frequency
DS101222-12
Output Impedance vs Frequency
DS101222-33
Reverse Characteristics
DS101222-13
DS101222-14
DS101222-15
7
DS101222-16
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LM4051AIM3-ADJ

Precision Micropower Shunt Voltage Reference

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