ML4831 datasheet(4/14 Pages) MICRO-LINEAR

Part #	ML4831

Description	Electronic Ballast Controller

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Manufacturer	MICRO-LINEAR [Micro Linear Corporation]

Direct Link	http://www.microlinear.com

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4 / 14 page

ML4831

4

ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Oscillator

Initial accuracy

TA = 25°C

727680

kHz

Voltage stability

VCCZ – 3V < VCC <VCCZ – 0.5V

1

%

Temperature stability

2%

Total Variation

Line, temperature

69

83

kHz

Ramp Valley to Peak

2.5

V

C(T) Charging Current (FM Modes)

VPIN5 = 3V, VPIN8 = 2.5V,

VPIN10 = 0.9V (Preheat)

–78

µA

VPIN5 = 3V, VPIN8 = 2.5V,

VPIN10 = Open

–156

µA

C(T) Discharge Current

VPIN8 = 2.5V

5

mA

Output Drive Deadtime

0.75

µs

Reference Section

Output Voltage

TA = 25°C, IO = 1mA

7.4

7.5

7.6

V

Line regulation

VCCZ – 3V < VCC < VCCZ – 0.5V

2

10

mV

Load regulation

1mA < IO < 20mA

2

15

mV

Temperature stability

0.4

%

Total Variation

Line, load, temp

7.35

7.65

V

Output Noise Voltage

10Hz to 10KHz

50

µV

Long Term Stability

TJ = 125°C, 1000 hrs

5

mV

Short Circuit Current

VCC < VCCZ – 0.5V, VREF = 0V

–40

mA

Preheat and Interrupt Timer (Pin 10) (R(X) = 590K

Ω, C(X) = 5.6µF)

Initial Preheat Period

0.8

s

Subsequent Preheat Period

0.7

s

Start Period

2.1

s

Interrupt Period

6.3

s

Pin 10 Charging Current

–19

µA

Pin 10 Open Circuit Voltage

VCC = 12.3V in UVLO

0.4

0.9

1.1

V

Pin 10 Maximum Voltage

7.0

7.3

7.7

V

Input Bias Current

VPIN10 = 1.2V

–0.2

µA

Preheat Lower Threshold

1.18

V

Preheat Upper Threshold

3.36

V

Interrupt Recovery Threshold

1.18

V

Start Period End Threshold

6.7

V

Interrupt Input (Pin 9)

Interrupt Threshold

7.35

7.5

7.65

V

Input Bias Current

–0.3

–1

µA

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