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ML4833

Electronic Dimming Ballast Controller

Micro Linear Corporation 

ML4833

ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER

CONDITIONS

Oscillator (Continued)

CT Charging Current

CT Discharge Current

Output Drive Deadtime

Voltage at LAMP FB = 3V,

RT/CT = 2.5V, RX/CX = 0.9V (Preheat)

LAMP FB = 3V, RT/CT = 2.5V,

RX/CX = Open

Voltage at RT/CT = 2.5V

Reference Section

Output Voltage

Line regulation

Load regulation

Temperature stability

TA = 25°C, IO = 1mA

VCCZ – 4.5V < VCC < VCCZ – 0.5V

1mA < IO < 5mA

Total Variation

Line, load, temp

Output Noise Voltage

10Hz to 10kHz

Long Term Stability

TJ = 125°C, 1000 hrs

Preheat and Interrupt Timer (RX/CX where RX = 680ký, CX = 4.7µF)

Initial Preheat Period

Subsequent Preheat Period

Start Period

Interrupt Period

RX/CX Charging Current

RX/CX Open Circuit Voltage

RX/CX Maximum Voltage

Input Bias Current

Preheat Lower Threshold

VCC < Start-up threshold

Voltage at CRAMP = 1.2V

Preheat Upper Threshold

Interrupt Recovery Threshold

Start Period End Threshold

Interrupt Input (INTERRUPT)

Interrupt Threshold

Input Bias Current

RSET Voltage

OVP Comparator (PVFB/OVP)

OVP Threshold

Hysteresis

Propagation Delay

MIN

–90

–180

4.0

0.65

7.4

7.35

–24

0.4

7.0

1.05

4.2

1.05

6.05

1.1

2.4

2.63

0.18

TYP

–110

–220

5.5

1

7.5

2

2

0.4

50

5

0.8

0.7

1.2

5.7

–28

0.7

7.3

1.22

4.7

1.22

6.6

1.22

2.5

2.73

0.23

1.4

MAX

UNITS

–130

µA

–260

µA

7.0

mA

1.35

µs

7.6

V

35

mV

15

mV

%

7.65

V

µV

mV

s

s

s

s

–33

µA

1.0

V

7.7

V

0.1

µA

1.36

V

5.1

V

1.36

V

7.35

V

1.4

V

0.1

µA

2.6

V

2.83

V

0.27

V

µs

4

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