ML4831 datasheet(4/14 Pages) MICRO-LINEAR

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ML4831

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

Temperature stability

Total Variation

Line, temperature

kHz

Ramp Valley to Peak

2.5

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

Output Drive Deadtime

0.75

µs

Reference Section

Output Voltage

TA = 25°C, IO = 1mA

7.4

7.5

7.6

Line regulation

VCCZ – 3V < VCC < VCCZ – 0.5V

Load regulation

1mA < IO < 20mA

Temperature stability

0.4

Total Variation

Line, load, temp

7.35

7.65

Output Noise Voltage

10Hz to 10KHz

µV

Long Term Stability

TJ = 125°C, 1000 hrs

Short Circuit Current

VCC < VCCZ – 0.5V, VREF = 0V

–40

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

Ω, C(X) = 5.6µF)

Initial Preheat Period

0.8

Subsequent Preheat Period

0.7

Start Period

2.1

Interrupt Period

6.3

Pin 10 Charging Current

–19

µA

Pin 10 Open Circuit Voltage

VCC = 12.3V in UVLO

0.4

0.9

1.1

Pin 10 Maximum Voltage

7.0

7.3

7.7

Input Bias Current

VPIN10 = 1.2V

–0.2

µA

Preheat Lower Threshold

1.18

Preheat Upper Threshold

3.36

Interrupt Recovery Threshold

1.18

Start Period End Threshold

6.7

Interrupt Input (Pin 9)

Interrupt Threshold

7.35

7.5

7.65

Input Bias Current

–0.3

–1

µA

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