LM4041 datasheet(10/16 Pages) MICREL

10 / 16 page

LM4040/4041

Micrel, Inc.

M9999-031805

March 2005

LM4041-Adjustable Electrical Characteristics (Note 4)

Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TJ = 25°C unless otherwise speciﬁed (SOT-23, see Note 8),

IRMIN ≤ IR < 12mA, VREF ≤ VOUT ≤ 10V. The grades C and D designate initial Reverse Breakdown Voltage tolerance of ±0.5% and ±1%,

respectively for VOUT = 5V.

LM4041CIM3

LM4041DIM3

Symbol

Parameter

Conditions

Typical

Units

(Note 5)

Limits

(Limit)

(Note 6)

VREF

Reference Breakdown Voltage

IR = 100µA

1.233

VOUT = 5V

Reference Breakdown Voltage

IR = 100µA

±6.2

±12

mV (max)

Tolerance

(Note 9)

±14

±24

mV (max)

IRMIN

Minimum Operating Current

µA

µA (max)

ΔVREF

Reference Voltage

IRMIN ≤ IR 1mA

0.7

/ΔIR

Change with Operating

SOT-23:

1.5

2.0

mV (max)

Current Change

VOUT ≥ 1.6V

2.0

2.5

mV (max)

(Note 8)

1mA ≤ IR 15mA

SOT-23:

mV (max)

VOUT ≥ 1.6V

mV (max)

(Note 8)

ΔVREF

Reference Voltage Change

IR = 1mA

–1.55

mV/V

/ΔVO

with Output Voltage Change

–2.0

–2.5

mV/V (max)

–2.5

–3.0

mV/V (max)

IFB

Feedback Current

100

150

nA (max)

120

200

nA (max)

ΔVREF

Average Reference

VOUT = 5V

/ΔT

Voltage Temperature

IR = 10mA

±20

ppm/°C

Coefﬁcient

IR = 1mA

±15

±100

±150

ppm/°C (max)

(Note 9)

IR = 100µA

±15

ppm/°C (max)

ZOUT

Dynamic Output Impedance

IR = 1mA, f = 120Hz

IAC = 0.1 IR

VOUT = VREF

0.3

VOUT = 10V

Ω (max)

Wideband Noise

IR = 100µA

10Hz ≤ f ≤ 10kHz

µVRMS

ΔVREF

Reference Voltage

t = 1000hrs

Long Term Stability

T = 25°C ±0.1°C

120

ppm

IR = 100µA

Note 4. Speciﬁcation for packaged product only.

Note 5. Typicals are at TJ = 25°C and represent most likely parametric norm.

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-

age Tolerance ±[(ΔVR/ΔT)(65°C)(VR)]. ΔVR/ΔT is the VR temperature coefﬁcient, 65°C is the temperature range from –40°C to the reference

point of 25°C, and VR is the reverse breakdown voltage. The total over temperature tolerance for the different grades follows:

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.

Note 8. When VOUT ≤ 1.6V, the LM4041-ADJ must operate at reduced IR. This is caused by the series resistance of the die attach between the die (–)

output and the package (–) output pin. See the Output Saturation curve in the “Typical Performance Characteristics” section.

Note 9. Reference voltage and temperature coefﬁcient will change with output voltage. See “Typical Performance Characteristics” curves.

LM4041 Datasheet(PDF) 10 Page - Micrel Semiconductor

LM4041 Datasheet(HTML) 10 Page - Micrel Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL