Datasheet

LM4040/LM4041
DS20005757B-page 10  2017-2018 Microchip Technology Inc.
LM4041-1.2 ELECTRICAL CHARACTERISTICS (Note 1)
T
A
= Operating Temperature Range, T
A
= T
J
= –40°C to +85°C, unless noted.
Parameters Sym. Min. Typ. Max. Units Conditions
LM4041C
Reverse-Breakdown Voltage V
R
— 1.225 — V I
R
= 100 µA, T
A
= +25°C
Reverse-Breakdown Voltage
Tolerance (Note 2)
——±6mVI
R
= 100 µA, T
A
= +25°C
——±14mVI
R
= 100 µA
Minimum Operating Current I
RMIN
—4560µAT
A
= +25°C
——65 —
Average Reverse-Breakdown
Voltage Temperature
Coefficient
V
R
/
T
— ±20 — ppm/°C I
R
= 10 mA, T
A
= +25°C
— ±15 ±100 I
R
= 1 mA
—±15— I
R
= 100 µA, T
A
= +25°C
Reverse-Breakdown Voltage
Change with Operating
Current Change
V
R
/I
R
—0.71.5mVI
RMIN
 I
R
 1mA,
T
A
= +25°C
——2.0 I
RMIN
 I
R
 1mA
—4.06.0 1mA  I
R
 12 mA,
T
A
= +25°C
——8.0 1mA  I
R
 12 mA
Reverse Dynamic Impedance Z
R
—0.51.5 I
R
= 1 mA, f = 120 Hz,
I
AC
= 0.1 I
R
, T
A
= +25°C
Wideband Noise e
N
—20—µV
RMS
I
R
= 100 µA, T
A
= +25°C,
10 Hz  f  10 kHz
Reverse-Breakdown Voltage
Long-Term Stability
V
R
— 120 — ppm t = 1000 hrs., T
A
= +25°C
±0.1°C, I
R
= 100 µA
LM4041D
Reverse-Breakdown Voltage V
R
— 1.225 — V I
R
= 100 µA, T
A
= +25°C
Reverse-Breakdown Voltage
Tolerance (Note 2)
——±12mVI
R
= 100 µA, T
A
= +25°C
——±24 I
R
= 100 µA
Minimum Operating Current I
RMIN
—4565µAT
A
= +25°C
——70 —
Average Reverse-Breakdown
Voltage Temperature
Coefficient
V
R
/
T
— ±20 — ppm/°C I
R
= 10 mA, T
A
= +25°C
— ±15 ±150 I
R
= 1 mA
—±15— I
R
= 100 µA, T
A
= +25°C
Note 1: Specification for packaged product only.
2: The boldface (overtemperature) limit for Reverse-Breakdown Voltage Tolerance is defined as the room
temperature Reverse-Breakdown Voltage Tolerance ±[(V
R
/T)(65°C)(V
R
)]. V
R
/T is the V
R
tempera-
ture coefficient, 65°C is the temperature range from –40°C to the reference point of 25°C, and V
R
is the
reverse-breakdown voltage. The total overtemperature tolerance for the different grades follows:
a. C-grade: ±1.15% = ±0.5% ±100 ppm/°C × 65°C
b. D-grade: ±1.98% = ±1.0% ±150 ppm/°C × 65°C
Example: The C-grade LM4040-2.5 has an overtemperature Reverse-Breakdown Voltage tolerance of
±2.5 × 1.15% = ±29 mV.