SNOS641F – OCTOBER 1999 – REVISED JULY 2013
Operating Ratings
(1) (2)
Temperature Range
Industrial Temperature Range
Extended Temperature Range
Reverse Current
Output Voltage Range
(1)
LM4041-N 1.2, LM4041-N-Q1 1.2
LM4041-N ADJ, LM4041-N-Q1 ADJ
LM4041-N ADJ, LM4041-N-Q1 ADJ
(T
min
≤
T
A
≤
T
max
)
−40°C ≤
T
A
≤
+85°C
−40°C ≤
T
A
≤
+125°C
60
μA
to 12 mA
60
μA
to 12 mA
1.24V to 10V
(2)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the
Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions.
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
Jmax
(maximum junction temperature),
θ
JA
(junction to ambient thermal resistance), and T
A
(ambient temperature). The maximum allowable power dissipation at any
temperature is PD
max
= (T
Jmax
−
T
A
)/θ
JA
or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4041-N,
T
Jmax
= 125°C, and the typical thermal resistance (θ
JA
), when board mounted, is 326°C/W for the SOT-23 package, 415°C/W for the
SC70 package and 180°C/W with 0.4″ lead length and 170°C/W with 0.125″ lead length for the TO-92 package.
LM4041-N/LM4041-N-Q1 1.2 Electrical Characteristics (Industrial Temperature Range)
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25°C. The grades A and B designate initial
Reverse Breakdown Voltage tolerances of ±0.1% and ±0.2%, respectively.
Symbol
Parameter
Conditions
Typical
(1)
LM4041AIM3
LM4041QAIM3
LM4041AIM3
LM4041AIZ
Limits
(2)
±1.2
±9.2
45
60
65
ΔV
R
/ΔT
Average Reverse Breakdown
Voltage Temperature
Coefficient
(3)
I
R
= 10 mA
I
R
= 1 mA
I
R
= 100
μA
±20
±15
±15
±100
±100
60
65
LM4041BIM3
LM4041QBIM3
LM4041BIZ
LM4041BIM7
Limits
(2)
±2.4
±10.4
Units
(Limit)
V
R
Reverse Breakdown Voltage
Reverse Breakdown Voltage
Tolerance
(3)
I
R
= 100
μA
I
R
= 100
μA
1.225
V
mV (max)
mV (max)
μA
μA
(max)
μA
(max)
ppm/°C
ppm/°C (max)
ppm/°C
I
RMIN
Minimum Operating Current
(1)
(2)
(3)
Typicals are at T
J
= 25°C and represent most likely parametric norm.
Limits are 100% production tested at 25°C. Limits over temperature are ensured through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate AOQL.
The boldface (over-temperature) limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse
Breakdown Voltage Tolerance ±[(ΔV
R
↱ΔT)(max
ΔT)(V
R
)]. Where,
ΔV
R
/ΔT is the V
R
temperature coefficient, maxΔT is the maximum
difference in temperature from the reference point of 25 °C to T
MAX
or T
MIN
, and V
R
is the reverse breakdown voltage. The total over-
temperature tolerance for the different grades in the industrial temperature range where maxΔT=65°C is shown below:
A-grade: ±0.75% = ±0.1% ±100 ppm/°C × 65°C
B-grade: ±0.85% = ±0.2% ±100 ppm/°C × 65°C
C-grade: ±1.15% = ±0.5% ±100 ppm/°C × 65°C
D-grade: ±1.98% = ±1.0% ±150 ppm/°C × 65°C
E-grade: ±2.98% = ±2.0% ±150 ppm/°C × 65°C
The total over-temperature tolerance for the different grades in the extended temperature range where max
ΔT
= 100 °C is shown
below:
B-grade: ±1.2% = ±0.2% ±100 ppm/°C × 100°C
C-grade: ±1.5% = ±0.5% ±100 ppm/°C × 100°C
D-grade: ±2.5% = ±1.0% ±150 ppm/°C × 100°C
E-grade: ±4.5% = ±2.0% ±150 ppm/°C × 100°C
Therefore, as an example, the A-grade LM4041-N 1.2 has an over-temperature Reverse Breakdown Voltage tolerance of ±1.2V × 0.75%
= ±9.2 mV.
3
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