ML4833, ML4833CS, ML4835CP Selling Leads, Datasheet
MFG:1 Package Cooled:ML
ML4833, ML4833CS, ML4835CP
- Table of contents:
Info of ML4833
Info of ML4833CS
Info of ML4835CP
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About ML4833
PDF/DataSheet Download
Datasheet: ML4833
File Size: 276803 KB
Manufacturer: MICRO-LINEAR [Micro Linear Corporation]
Download : Click here to Download
About ML40123N
PDF/DataSheet Download
Datasheet: ML40123N
File Size: 108913 KB
Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
Download : Click here to Download
About ML40123N
PDF/DataSheet Download
Datasheet: ML40123N
File Size: 108913 KB
Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
Download : Click here to Download
ML4833 General Description
The ML4833 is a complete solution for a dimmable or a non-dimmable, high power factor, high efficiency electronic ballast. The BiCMOS ML4833 contains controllers for "boost" type power factor correction as well as for a dimming ballast. The ML4833 was designed to minimize the number of external components required to build an electronic ballast.
The PFC circuit uses a new, simple PFC topology which requires only one loop for compensation. This system produces a power factor of better than 0.99 with low input current THD. An overvoltage protection comparator inhibits the PFC section in the event of a lamp out or lamp failure condition.
The ballast controller section provides for programmable starting sequence with individually adjustable preheat and lamp out-of-socket interrupt times. The IC controls lamp output power through feedback. The ML4833 provides a power down input which reduces power to the lamp, for GFI, end of life, etc.
ML4833 Maximum Ratings
Supply Current (ICC) .....................................................60mA
Output Current, Source or Sink
(OUT A, OUT B, PFC OUT) DC ...................................... 250mA
Output Energy (capacitive load per cycle).................... 1.5 mJ
Analog Inputs
(LAMP FB, INTERRUPT, VCC) ...................... 0.3V to VCC 2V
PIFB input voltage .............................................. 1.5V to 2V
Maximum Forced Voltage
(PEAO, LFB OUT) .............................................. 0.3V to 7.7V
Maximum Forced Current (PEAO, LFB OUT) .................±20mA
Junction Temperature ................................................. 150°C
Storage Temperature Range ....................... 65°C to 150°C
Lead Temperature (Soldering 10 sec.) ....................... 260°C
Thermal Resistance (JA)
ML4833CP ............................................................... 70°C/W
ML4833CS ............................................................. 100°C/W
Output Current, Source or Sink
(OUT A, OUT B, PFC OUT) DC ...................................... 250mA
Output Energy (capacitive load per cycle).................... 1.5 mJ
Analog Inputs
(LAMP FB, INTERRUPT, VCC) ...................... 0.3V to VCC 2V
PIFB input voltage .............................................. 1.5V to 2V
Maximum Forced Voltage
(PEAO, LFB OUT) .............................................. 0.3V to 7.7V
Maximum Forced Current (PEAO, LFB OUT) .................±20mA
Junction Temperature ................................................. 150°C
Storage Temperature Range ....................... 65°C to 150°C
Lead Temperature (Soldering 10 sec.) ....................... 260°C
Thermal Resistance (JA)
ML4833CP ............................................................... 70°C/W
ML4833CS ............................................................. 100°C/W
ML4833 Features
Complete power factor correction and dimming ballast control in one IC
Low distortion, high efficiency continuous boost, peak current sensing PFC section
Programmable start scenario for rapid or instant start lamps
Lamp current feedback for dimming control
Variable frequency dimming and starting
Programmable restart for lamp out condition to reduce ballast heating
Internal over-temperature shutdown replaces external heat sensor
PFC overvoltage comparator eliminates output "runaway" due to load removal
Low start-up current <0.5mA
Power reduction pin for end of life and GFI detectors
ML4833 Connection Diagram
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