Datasheet

LM4040-N, LM4040Q-N
www.ti.com SNOS633H –OCTOBER 2000–REVISED APRIL 2013
10-V LM4040-N Electrical Characteristics
V
R
Tolerance Grades 'A' and 'B'; Temperature Grade 'I'
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.
LM4040AIM3 LM4040BIM3
Symbol Parameter Conditions Typical
(1)
LM4040AIZ LM4040BIZ Units
Limits
(2)
Limits
(2)
Reverse Breakdown Voltage I
R
= 150 μA 10.00 V
V
R
±10 ±20 mV (max)
Reverse Breakdown Voltage
I
R
= 150 μA
Tolerance
(3)
±75 ±85 mV (max)
75 μA
I
RMIN
Minimum Operating Current 100 100 μA (max)
103 103 μA (max)
I
R
= 10 mA ±40 ppm/°C
Average Reverse Breakdown
ΔV
R
/ΔT Voltage Temperature I
R
= 1 mA ±20 ±100 ±100 ppm/°C (max)
Coefficient
(3)
I
R
= 150 μA ±20 ppm/°C
0.8 mV
I
RMIN
≤ I
R
≤ 1 mA 1.5 1.5 mV (max)
Reverse Breakdown Voltage
3.5 3.5 mV (max)
ΔV
R
/ΔI
R
Change with Operating
8.0 mV
Current Change
(4)
1 mA ≤ I
R
≤ 15 mA 12.0 12.0 mV (max)
23.0 23.0 mV (max)
0.7 Ω
I
R
= 1 mA, f = 120 Hz,
Z
R
Reverse Dynamic Impedance
I
AC
= 0.1 I
R
1.7 1.7 Ω (max)
I
R
= 150 μA
e
N
Wideband Noise 180 μV
rms
10 Hz ≤ f ≤ 10 kHz
t = 1000 hrs
Reverse Breakdown Voltage
ΔV
R
T = 25°C ±0.1°C 120 ppm
Long Term Stability
I
R
= 150 μA
V
HYST
Thermal Hysteresis
(5)
ΔT = −40°C to +125°C 0.08 %
(1) Typicals are at T
J
= 25°C and represent most likely parametric norm.
(2) 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.
(3) The boldface (over-temperature) limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse
Breakdown Voltage Tolerance ±[(ΔV
R
/ΔT)(maxΔT)(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
MIN
or T
MAX
, 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:
C-grade: ±1.5% = ±0.5% ±100 ppm/°C × 100°C
D-grade: ±2.5% = ±1.0% ±150 ppm/°C × 100°C
E-grade: ±3.5% = ±2.0% ±150 ppm/°C × 100°C
Therefore, as an example, the A-grade 2.5-V LM4040-N has an over-temperature Reverse Breakdown Voltage tolerance of ±2.5V ×
0.75% = ±19 mV.
(4) Load regulation is measured on pulse basis from no load to the specified load current. Output changes due to die temperature change
must be taken into account separately.
(5) Thermal hysteresis is defined as the difference in voltage measured at +25°C after cycling to temperature -40°C and the 25°C
measurement after cycling to temperature +125°C.
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