MIC38C43 datasheet(4/24 Pages) MICROCHIP

4 / 24 page

MIC38C42/43/44/45

DS20006436B-page 4



2020 - 2022 Microchip Technology Inc. and its subsidiaries

ELECTRICAL CHARACTERISTICS

Electrical Characteristics: VDD = 15V, Adjust VDD above the start threshold before setting at 15V; RT = 11.0 kΩ;

CT = 3.3 nF; –40°C ≤ TA ≤ +85°C; unless noted. Note 1

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions

Reference

Output Voltage

VREF

4.90

5.00

5.10

TA = +25°C, IVREF = 1 mA

Line Regulation

ΔVREF(LINE)

—

12V ≤ VDD ≤ 18V, IVREF = 5 μA, Note 6

Load Regulation

ΔVREF(LOAD)

—

1 mA ≤ IVREF ≤ 20 mA

Temperature Stability

TCVREF

—

0.2

—

mV/°C Note 2

Total Output Variation ΔVREF(TOT)

4.82

—

5.18

Line, Load, Temperature, Note 2

Output Noise Voltage

VNOISE

—

µV

10 Hz ≤ f ≤ 10 kHz, TA = +25°C, Note 2

Long-Term Stability

ΔVREF(LT)

—

TA = +125°C, 1000 hours, Note 2

Output Short-Circuit

IVREF(SC)

–30

–80

–180

—

Oscillator

Initial Accuracy

ΔfOSC(INIT)

kHz

TA = +25°C, Note 3

Voltage Stability

ΔfOSC(VS)

—

0.2

1.0

12V ≤ VDD ≤ 18V, Note 6

Temperature Stability

TCFOSC

—

0.04

—

%/°C TMIN ≤ TA ≤ TMAX, Note 2

Clock Ramp Reset

Current

IDISCHG

6.0

8.4

9.0

TA = +25°C, VRT/CT = 2V

6.0

8.4

9.5

TA = TMIN to TMAX

Amplitude

VAMP

—

1.9

—

VPP VRT/CT peak-to-peak

Error Amp

Input Voltage

VIN(EA)

2.42

2.50

2.58

VCOMP = 2.5V

Input Bias Current

IBIAS(EA)

—

–0.1

–2

µA

VFB = 5.0V

Open Loop Voltage

Gain

AVOL

—

2V ≤ VCOMP ≤ 4V

Unity Gain Bandwidth

GBW

0.7

1.0

—

MHz Note 2

Power Supply

Rejection Ratio

PSRREA

—

12V ≤ VDD ≤ 18V

Output Sink Current

ICOMP(SINK)

—

VFB = 2.7V, VCOMP = 1.1V

Output Source

Current

ICOMP(SRC)

–0.5

–1

—

VFB = 2.3V, VCOMP = 5V

COMP High Voltage

VCOMP_H

6.8

—

VFB = 2.3V, RLOAD = 15 kΩ to ground

COMP Low Voltage

VCOMP_L

—

0.1

1.1

VFB = 2.7V, RLOAD = 15 kΩ to VREF

Current Sense

Divider Gain

Input-to-Output

ADIV

2.85

3.0

3.15

V/V

Note 4, Note 5

Maximum Threshold

VTH(MAX)

0.9

1.1

VCOMP = 5V, Note 4

Power Supply

Rejection Ratio

PSRRCS

—

12V ≤ VDD ≤ 18V, Note 4

Input Bias Current

IBIAS(CS)

—

–0.1

–2

µA

—

Delay to Output

—

120

250

—

Output

RDS(ON) Pull High

RDSON_H

—

ISOURCE = 200 mA

RDS(ON) Pull Low

RDSON_L

—

ISINK = 200 mA

Rise Time

—

TA = +25°C, CLOAD = 1 nF

Fall Time

—

TA = +25°C, CLOAD = 1 nF

MIC38C43 датащи(PDF) 4 Page - Microchip Technology

MIC38C43 датащи(HTML) 4 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

датащи скачать

ссылки URL