ML4831 데이터 시트보기 (PDF) - Micro Linear Corporation

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ML4831

Electronic Ballast Controller

Micro Linear Corporation 

ML4831

ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER

CONDITIONS

Oscillator

Initial accuracy

Voltage stability

Temperature stability

TA = 25°C

VCCZ – 3V < VCC <VCCZ – 0.5V

Total Variation

Line, temperature

Ramp Valley to Peak

C(T) Charging Current (FM Modes)

C(T) Discharge Current

Output Drive Deadtime

VPIN5 = 3V, VPIN8 = 2.5V,

VPIN10 = 0.9V (Preheat)

VPIN5 = 3V, VPIN8 = 2.5V,

VPIN10 = Open

VPIN8 = 2.5V

Reference Section

Output Voltage

Line regulation

Load regulation

Temperature stability

TA = 25°C, IO = 1mA

VCCZ – 3V < VCC < VCCZ – 0.5V

1mA < IO < 20mA

Total Variation

Line, load, temp

Output Noise Voltage

10Hz to 10KHz

Long Term Stability

TJ = 125°C, 1000 hrs

Short Circuit Current

VCC < VCCZ – 0.5V, VREF = 0V

Preheat and Interrupt Timer (Pin 10) (R(X) = 590KΩ, C(X) = 5.6µF)

Initial Preheat Period

Subsequent Preheat Period

Start Period

Interrupt Period

Pin 10 Charging Current

Pin 10 Open Circuit Voltage

Pin 10 Maximum Voltage

VCC = 12.3V in UVLO

Input Bias Current

Preheat Lower Threshold

VPIN10 = 1.2V

Preheat Upper Threshold

Interrupt Recovery Threshold

Start Period End Threshold

Interrupt Input (Pin 9)

Interrupt Threshold

Input Bias Current

MIN

72

69

7.4

7.35

0.4

7.0

7.35

TYP

76

1

2

2.5

–78

–156

5

0.75

7.5

2

2

0.4

50

5

–40

0.8

0.7

2.1

6.3

–19

0.9

7.3

–0.2

1.18

3.36

1.18

6.7

7.5

–0.3

MAX

UNITS

80

kHz

%

%

83

kHz

V

µA

µA

mA

µs

7.6

V

10

mV

15

mV

%

7.65

V

µV

mV

mA

s

s

s

s

µA

1.1

V

7.7

V

µA

V

V

V

V

7.65

V

–1

µA

4

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