CM6800AG اورجینال - کیفیت بالا

نقد و بررسی اجمالی

آیسی کنترلاصلاح ضریب توان و pwm LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO

The CM6800 is a controller for power factor corrected,
switched mode power suppliers. Power Factor Correction
(PFC) allows the use of smaller, lower cost bulk
capacitors, reduces power line loading and stress on the
switching FETs, and results in a power supply that fully
compiles with IEC-1000-3-2 specifications. Intended as a
BiCMOS version of the industry-standard ML4824,
CM6800 includes circuits for the implementation of leading
edge, average current, “boost” type power factor
correction and a trailing edge, pulse width modulator
(PWM). Gate-driver with 1A capabilities minimizes the
need for external driver circuits. Low power requirements
improve efficiency and reduce component costs.

کاربردها:

پاور های خانگی

سرورها

یو پی اس

شارژرها

ماینرها

مخابراتی

Patent Number #5,565,761, #5,747,977, #5,742,151,
#5,804,950, #5,798,635
 Pin to pin compatible with ML4800 and FAN4800
 Additional folded-back current limit for PWM section.
 23V Bi-CMOS process
 VIN OK turn on PWM at 2.5V instead of 1.5V
 Internally synchronized leading edge PFC and trailing
edge PWM in one IC
 Slew rate enhanced transconductance error amplifier for
ultra-fast PFC response
 Low start-up current (100  A typ.)
 Low operating current (3.0mA type.)
 Low total harmonic distortion, high PF
 Reduces ripple current in the storage capacitor between
the PFC and PWM sections
 Average current, continuous or discontinuous boost
leading edge PFC
 VCC OVP Comparator, Low Power Detect Comparator
 PWM configurable for current mode or voltage mode
operation
 Current fed gain modulator for improved noise immunity
 Brown-out control, over-voltage protection, UVLO, and
soft start, and Reference OK

APPLICATIONS

Desktop PC Power Supply
 Internet Server Power Supply
 IPC Power Supply
 UPS
 Battery Charger
 DC Motor Power Supply
 Monitor Power Supply
 Telecom System Power Supply
 Distributed Power