ML4841 datasheet(3/15 Pages) MICRO-LINEAR

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ML4841

ABSOLUTE MAXIMUM RATINGS

Absolute maximum ratings are those values beyond which

the device could be permanently damaged. Absolute

maximum ratings are stress ratings only and functional

device operation is not implied.

VCC Shunt Regulator Current .................................. 55mA

ISENSE Voltage .................................................... -3V to 5V

Voltage on Any Other Pin ...... GND - 0.3V to VCCZ + 0.3V

IREF ........................................................................................... 20mA

IAC Input Current .................................................... 10mA

Peak PFC OUT Current, Source or Sink ................ 500mA

Peak PWM OUT Current, Source or Sink .............. 500mA

PFC OUT, PWM OUT Energy Per Cycle .................. 1.5mJ

Junction Temperature .............................................. 150

°C

Storage Temperature Range ......................–65

°C to 150°C

Lead Temperature (Soldering, 10 sec) ..................... 260

°C

Thermal Resistance (

θJA)

Plastic DIP ....................................................... 80

°C/W

Plastic SOIC ................................................... 105

°C/W

OPERATING CONDITIONS

Temperature Range

ML4841CX ................................................ 0

°C to 70°C

ML4841IX ............................................... -40

°C to 85°C

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, ICC = 25mA, RT = 23kΩ, RRAMP1 = 28.7kΩ, CT = 400pF, CRAMP1 = 270pF,

TA = Operating Temperature Range (Note 1)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VOLTAGE ERROR AMPLIFIER

Input Voltage Range

Transconductance

VNON INV = VINV, VEAO = 3.75V

100

Feedback Reference Voltage

2.4

2.5

2.6

Input Bias Current

Note 2

-0.5

-1.0

µA

Output High Voltage

6.0

6.7

Output Low Voltage

0.65

1.0

Source Current

∆VIN = ±0.5V, VOUT = 6V

-40

-90

µA

Sink Current

∆VIN = ±0.5V, VOUT = 1.5V

µA

Open Loop Gain

PSRR

VCCZ - 3V < VCC < VCCZ - 0.5V

CURRENT ERROR AMPLIFIER

Input Voltage Range

-1.5

Transconductance

VNON INV = VINV, VEAO = 3.75V

130

195

310

Input Offset Voltage

±3

±15

Input Bias Current

-0.5

-1.0

µA

Output High Voltage

6.0

6.7

Output Low Voltage

0.65

1.0

Source Current

∆VIN = ±0.5V, VOUT = 6V

-40

-90

µA

Sink Current

∆VIN = ±0.5V, VOUT = 1.5V

µA

Open Loop Gain

PSRR

VCCZ - 3V < VCC < VCCZ - 0.5V

ML4841 데이터시트(PDF) 3 Page - Micro Linear Corporation

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