LM4050_11 datasheet(2/14 Pages) MAXIM

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50ppm/°C Precision Micropower Shunt Voltage

References with Multiple Reverse Breakdown Voltages

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—1.225V

(IR = 100µA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Reverse Current (cathode to anode) ..................................20mA

Forward Current (anode to cathode) ..................................10mA

Continuous Power Dissipation (TA = +70°C)

3-Pin SC70 (derate 2.17mW/°C above +70°C) ............174mW

3-Pin SOT23 (derate 4.01mW/°C above +70°C)..........320mW

Operating Temperature Range

LM4050/LM4051_E_ _ _ ................................-40°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s)..................................+300°C

Soldering Temperature (reflow) .......................................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LM4051A (0.1%)

1.2238

1.2250

1.2262

LM4051B (0.2%)

1.2226

1.2250

1.2275

Reverse Breakdown Voltage

TA = +25

°C

LM4051C (0.5%)

1.2189

1.2250

1.2311

LM4051A

±1.2

±7

LM4051B

±2.4

±9

Reverse Breakdown Voltage

Tolerance (Note 2)

VRTOL

LM4051C

±6.0

±12

Minimum Operating Current

IRMIN

µA

IR = 10mA

±20

IR = 1mA

±15

±50

Average Reverse Voltage

Temperature Coefficient

(Notes 2, 3)

∆VR/∆T

IR = 100µA

±15

ppm/

°C

IRMIN

≤ IR ≤ 1mA

0.7

1.5

Reverse Breakdown Voltage

Change with Operating

Current Change

1mA

≤ IR ≤ 12mA

2.5

8.0

Reverse Dynamic

Impedance (Note 3)

IR = 1mA, f = 120Hz, IAC = 0.1IR

0.5

1.5

Ω

Wideband Noise

IR = 100µA, 10Hz

≤ f ≤ 10kHz

µVRMS

Reverse Breakdown Voltage

Long-Term Stability

∆VR

T = 1000h

120

ppm

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