ML4830

4

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Oscillator

Initial accuracy

Dimming Lockout

72

80

88

KHz

Voltage stability

1

%

Temperature stability

2%

Total Variation

Line, temperature

68

92

KHz

Ramp Valley to Peak

2.5

V

C(T) Charging Current (FM Modes)

–94

µA

Max. dimming

–188

µA

C(T) Discharge Current

5

mA

Output Drive Deadtime

0.2

µs

R(SET) Voltage

2.5

V

Reference Section

Output Voltage

7.4

7.5

7.6

V

Line regulation

2

10

mV

Load regulation

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

5

mV

Short Circuit Current

–40

mA

Preheat and Interrupt Timer (Pin 10) (R(X) = 590Ký, 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 12 Charging Current

–23

µA

Pin 12 Open Circuit Voltage

0.4

0.9

1.1

V

Pin 12 Maximum Voltage

7.0

7.3

7.7

V

Input Bias Current

–0.1

µA

Preheat Lower Threshold

1.18

V

Preheat Upper Threshold

3.36

V

Interrupt Recovery Threshold

1.18

V

Start Period End Threshold

6.6

V