ML4818TR, ML4819, ML4819CP_NL Selling Leads, Datasheet
MFG:FAIRCHILD Package Cooled:153 D/C:DIP
ML4818TR, ML4819, ML4819CP_NL Datasheet download
Part Number: ML4818TR
MFG: FAIRCHILD
Package Cooled: 153
D/C: DIP
ML4818TR, ML4819, ML4819CP_NL
- Table of contents:
Info of ML4818TR
Info of ML4819
Info of ML4819CP_NL
Attentive hint
Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
Top Sellers:
TOP
About ML40123N
PDF/DataSheet Download
Datasheet: ML40123N
File Size: 108913 KB
Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
Download : Click here to Download
About ML4819
PDF/DataSheet Download
Datasheet: ML4819
File Size: 275707 KB
Manufacturer: FAIRCHILD [Fairchild 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
ML4819 General Description
The ML4819 is a complete boost mode Power factor Controller (PFC) which also contains a PWM controller. The PFC circuit is similar to the ML4812 while the PWM controller can be used for current or voltage mode control for a second stage converter. Since the PWM and PFC circuits share the same oscillator, synchronization of the two stages is inherent. The outputs of the controller IC provide high current (>1A peak) and high slew rate to quickly charge and discharge MOSFET gates. Special care has been taken in the design of the ML4819 to increase
system noise immunity.
The PFC section is of the peak current sensing boost type, using a current sense transformer or current sensing MOSFETs to non-dissipatively sense switch current. This gives the system overall efficiency over average current sensing control method.
The PWM section includes cycle by cycle current limiting, precise duty cycle limiting for single ended converters, and slope compensation.
ML4819 Maximum Ratings
Supply Voltage (VCC) ................................................. .................................................................35V
Output Current, Source or Sink (RAMP COMP)DC ....................................................................... 1.0A
Output Energy (capacitive load per cycle) ................... ................................................................5J
Multiplier ISINE Input (ISINE) ................................... ...............................................................1.2mA
Error Amp Sink Current (GM OUT) ........................ ....................................................................10mA
Oscillator Charge Current ........................................ ..................................................................2mA
Analog Inputs (ISENSE A, EA OUT A, INV A)................................................................. 0.3V to 5.5V
Junction Temperature ............................................. ...............................................................150°C
Storage Temperature Range ..................... ..........................................................65°C to 150°C
Lead Temperature (soldering 10 sec.) ..................... .............................................................260°C
Thermal Resistance (JA)Plastic DIP or SOIC ......................................... .............................60°C/W
ML4819 Features
Two 1A peak current totem-pole output drivers
Precision buffered 5V reference (±1%)
Large oscillator amplitude for better noise immunity
Precision duty cycle limit for PWM section
Current input gain modulator improves noise immunity
Programmable Ramp Compensation circuit
Over-Voltage comparator helps prevent output"runaway"
Wide common mode range in current sense compensators for better noise immunity
Under-Voltage Lockout circuit with 6V hysteresis
Precision buffered 5V reference (±1%)
Large oscillator amplitude for better noise immunity
Precision duty cycle limit for PWM section
Current input gain modulator improves noise immunity
Programmable Ramp Compensation circuit
Over-Voltage comparator helps prevent output"runaway"
Wide common mode range in current sense compensators for better noise immunity
Under-Voltage Lockout circuit with 6V hysteresis
ML4819 Connection Diagram
MT58L64L18CT-10
Price: 4-6 USD
MT58L64L18CT-10 TQFP100
DL-7140-211M
Price: 5-6.5 USD
DL-7140-211M laser tube
74LVC74APG
Price: 4-5 USD
74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2
Price: 6.5-8 USD
CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX
Price: 0.284-0.286 USD
PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2
Price: 1-2 USD
IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB
Price: 1-2 USD
a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1
Price: 0.124-0.2 USD
PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L
Price: 0.177-0.178 USD
RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A
Price: 0.053-0.055 USD
STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013
Price: 1.45-1.5 USD
STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B
Price: 0.073-0.075 USD
SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components
