LM4041G-XX-AE3-R [UTC]
PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE; 精密微功耗并联型电压基准
| 型号： | LM4041G-XX-AE3-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | PRECISION MICROPOWER SHUNT VOLTAGE REFERENCE |
| 文件： | 总7页 (文件大小：160K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
PRECISION MICROPOWER
SHUNT VOLTAGE REFERENCE
DESCRIPTION
As a shunt voltage reference integrated circuit, UTC LM4041 can be
used for widespread applications with enhancement of the competitive
advantage by saving use of external capacitors..
In order to ensure a stable output voltage, the reference not only
offers low dynamic impedance, low noise and a low temperature
coefficient, but also provides tight output tolerance (Max 1.0 %) and low
temperature coefficient (150ppm/°C).
However, for those applications which the output voltage needs to
be adjusted between 1.225V and 10V, an external resistor divider is
necessary.
FEATURES
* Output Tolerances and Temperature Coefficient: Max 1.0%, 150 ppm/°C
* Low Output Noise : 20μVRMS (Typ.)
* Operating Current range : 45μA ~ 12mA
* Halogen Free
ORDERING INFORMATION
Order Number
Package
SOT-23
Packing
LM4041G-xx-AE3-R
Tape Reel
Note: xx: Output Voltage, refer to Marking Information.
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LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
MARKING
3
AD: ADJ
N4XXG
SOT-23
Voltage Code
2
1
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
Cathode
FB
DESCRIPTION
Output reference voltage, cathode terminal
Feedback terminal
1
2
3
Anode
Output reference voltage, anode terminal
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LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
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LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (Ta = 25°C, unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
15
UNIT
V
Continuous Cathode Voltage
Continuous Cathode Current
Junction Temperature
VZ
IZ
-10~+25
150
mA
°C
TJ
Storage Temperature
TSTG
-65~+150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
206
UNIT
°C/W
Junction to Ambient
θJA
Note: Maximum power dissipation is a function of TJ(max), θJA, and Ta. The maximum allowable power dissipation at
any allowable ambient temperature is PD = (TJ(max) – TA)/ θJA. Operating at the absolute maximum TJ of 150°C
can affect reliability.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
RATINGS
12
UNIT
mA
V
Cathode Current (max)
Reverse Breakdown Voltage
Operating Temperature
IZ
VZ
Ta
10
-40~+85
°C
ELECTRICAL CHARACTERISTICS (Ta =-40°C~ +85°C, unless otherwise specified.)
PARAMETER
SYMBOL
VREF
TEST CONDITIONS
MIN TYP MAX UNIT
Reference Voltage
Reference Voltage Tolerance
(Note)
VZ=5V, IZ = 100μA, Ta=25°C
1.233
V
mV
Ta=25°C
-12
12
24
2
VZ=5V, IZ = 100μA
Ta =-40°C~+85°C -24
Ta=25°C
mV
0.7
2
mV
IZ(MIN) < IZ < 1mA
1mA < IZ < 12mA
IZ=1mA
ΔVREF
Reference Voltage Change With
Cathode Current Change
Ta=-40°C~+85°C
Ta=25°C
2.5
6
mV
ΔIZ
mV
Ta=-40°C~+85°C
Ta=25°C
8
mV
ΔVREF
Reference Voltage Change With
Output Voltage Change
-1.55 -2
-3
mV/V
mV/V
μA
ΔVKA
Ta=-40°C~+85°C
Ta=25°C
45
75
80
Minimum Cathode Current
Feedback Current
IZ(MIN)
IFB
Ta =-40°C~+85°C
μA
Ta=25°C
60
150
200
nA
Ta=-40°C~+85°C
nA
VZ=5V, IZ =10mA, Ta=25°C
Ta=25°C
Ta=-40°C~+85°C
±20
±15
ppm/°C
ppm/°C
Temperature Coefficient of Output
Voltage (Note)
TCVO
VZ=5V, IZ=1mA
±150 ppm/°C
VZ=5V, IZ=100μA, Ta=25°C
VZ=VREF, IZ=1mA, IAC=0.1IZ
f=120Hz, Ta=25°C
±15
ppm/°C
0.3
Ω
Ω
Reverse Dynamic Impedance
Output Voltage Noise
ZZ
eN
VZ=10V, IZ=1mA, IAC=0.1IZ
f=120Hz, Ta=25°C
2
VZ=VREF, IZ =100μA
10Hz ≤ f ≤ 10 kHz, Ta=25°C
20
μVrms
ppm
Long-term Stability of Reverse
Breakdown Voltage
t=1000h, IZ=100μA, Ta = 25°C±0.1°C,
120
Note: Reference voltage tolerance and average temperature coefficient change with output voltage (VZ).
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LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
IR
(+)
(-)
2V/step
v
LM4041 (Adj)
Reverse Characteristics Test Circuit
Output Capacitor
Across CATHODE and ANODE, there’s no need to use output capacitor for the UTC LM4041 stability operation.
Pin Connections
There is a parasitic Schottky diode connected between Cathode (pin 1) and Anode (pin 3) .Thus, pin
3 must be left floating or connected to pin 1.
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LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
APPLICATION INFORMATION
VZ is set according to the equation shown as below which can be set by a user-defined resistor divider.
VS
RS
R2
VZ = VREF 1+
R1
VREF
R1
R2
LM4041
Adjustable Shunt Regulator
Cathode and Load Currents
The total current available to supply the load (IL) and bias the UTC LM4041 (IZ) is set by RS, so its value must be
set properly. In all cases, IZ must stay in a specified range for proper operation of the reference; RS must be small
enough to supply the minimum IZ. At maximum VS and minimum IL, to limit IZ to not exceed rating of 12 mA, RS must
be large enough.
(VS − VZ )
RS=
(IL + IZ )
VS
IZ + IL
RS
VZ
IL
IZ
LM4041
Shunt Regulator
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LM4041
Preliminary
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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