March 2005

9

M9999-031805

LM4040/4041

Micrel, Inc.

down Voltage tolerance of ±0.5% and ± 1.0%, respectively.

LM4041DIM3

Typical

Limits

Units

Symbol

Parameter

Conditions

(Note 5)

(Note 6)

(Limit)

Reverse Breakdown Voltage

1.225

V

Reverse Breakdown Voltage

±12

mV (max)

Tolerance

(Note 7)

±24

mV (max)

Minimum Operating Current

45

µA

65

µA (max)

70

µA (max)

Average Reverse Breakdown

±20

ppm/°C

Voltage Temperature

±15

±150

ppm/°C (max)

Coefficient

±15

ppm/°C (max)

0.7

mV

Change with Operating

2.0

mV (max)

Current Change

2.5

mV (max)

2.5

mV

8.0

mV (max)

10.0

mV (max)

Reverse Dynamic Impedance

0.5

Ω

2.0

Ω (max)

Wideband Noise

10Hz ≤ f ≤ 10kHz

20

Reverse Breakdown Voltage

t = 1000hrs

Long Term Stability

T = 25°C ±0.1°C

120

ppm

Note 4. Specification for packaged product only.

Note 6. Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation using Statistical Quality Control (SQL)

methods.

Note 7. The boldface (over temperature limit for Reverse Breakdown Voltage Tolerance is defined as the room temperature Reverse Breakdown Volt-

C-grade: ±1.15% = ±0.5% ±100ppm/°C × 65°C

D-grade: ±1.98% = ±1.0% ±150ppm/°C × 65°C

Example: The C-grade LM4040-2.5 has an over temperature Reverse Breakdown Voltage tolerance of ±2.5 × 1.15% = ±29mV.