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ML4832CS

Electronic Dimming Ballast Controller

Micro Linear Corporation 

ABSOLUTE MAXIMUM RATINGS

Absolute maximum ratings are those values beyond which

the device could be permanently damaged. Absolute

maximum ratings are stress ratings only and functional

device operation is not implied.

Supply Current (ICC) ............................................... 60mA

Output Current, Source or Sink (OUT A, OUT B, PFC

OUT)

DC ................................................................... 250mA

Output Energy (capacitive load per cycle) ............... 1.5mJ

Gain Modulator ISINE Input ..................................... 10mA

Analog Inputs ....................................... –0.3V to VCC –2V

IA+ Input Voltage .............................................. –3V to 2V

Maximum Forced Voltage

(EA OUT, LFB OUT) ................................ –0.3V to 7.7V

Maximum Forced Current

(EA OUT, IA OUT, LFB OUT) ............................ ±20mA

ML4832

Maximum Forced Voltage

(IA OUT) ................................................. –0.3V to 7.5V

Junction Temperature ............................................. 150°C

Storage Temperature Range...................... –65°C to 150°C

Lead Temperature (Soldering 10 sec.) ..................... 260°C

Thermal Resistance (qJA)

Plastic PDIP ..................................................... 70°C/W

Plastic SOIC ................................................... 100°C/W

OPERATING CONDITIONS

Temperature Range

ML4832C .................................................. 0°C to 85°C

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, RSET = 22.1kW, RT = 15.8kW, CT = 1.5nF, C(VCC) = 1µF, ISINE = 200µA, VCC = 12.5V,

TA = Operating Temperature Range (Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

PFC CURRENT SENSE AMPLIFIER

Small Signal Transconductance

40

90

120

Output Low

ISINE = 0mA, VEA OUT = 0V,

VIA+ = –0.3V, RL = ¥

Output High

ISINE = 1.5mA,

VEA–/OVP = VIA+ = 0V, RL = ¥

Source Current

ISINE = 1.5mA,

VEA–/OVP = VIA+ = 0V,

VIA OUT = 6V, TJ = 25ºC

Sink Current

ISINE = 0mA, VIA OUT = 0.3V,

VIA+ = –0.6V

VEA OUT = 0V, VEA–/OVP = 5V,

TJ = 25ºC

PFC VOLTAGE FEEDBACK AMPLIFIER/LAMP CURRENT AMPLIFIER

0.2

0.4

6.3

6.8

–0.05 –0.15 –0.25

0.03

0.07

0.16

Input Bias Current

–0.3

–1.0

Small Signal Transconductance

30

55

90

Input Voltage Range

–0.3

5.0

Output Low

Output High

Source Current

Sink Current

VLAMP FB = VEA–/OVP = 3V, RL = ¥

VLAMP FB = VEA–/OVP = 2V, RL = ¥

VLAMP FB = VEA–/OVP = 0V,

VEA OUT = VLFB OUT = 7V,

TJ = 25ºC

VLAMP FB = VEA–/OVP = 5V,

VEA OUT = VLFB OUT = 0.3V,

TJ = 25ºC

7.1

–0.06

0.2

7.5

–0.15

0.4

7.8

–0.30

0.06

0.12

0.28

UNITS

µ

V

V

mA

mA

µA

µ

V

V

V

mA

mA

3

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