DAP005 – Advanced transition-mode PFC controller

Part Number : DAP005

Function : Advanced transition-mode PFC controller

Manufactures : STMicroelectronics

Images :

1 page
DAP005 image

2 page
pinout

Description :

DAP005 Features Advanced transition-mode PFC controller Custom Data ■ Transition-mode control of PFC pre-regulators ■ Very precise adjustable output overvoltage protection ■ Tracking boost function ■ Protection against feedback loop failure (Latched shutdown) ■ Interface for cascaded converter’s PWM controller ■ Input voltage feedforward (1/V2) ■ AC brownout protection ■ Low (≤ 90µA) start-up current ■ < 5mA quiescent current ■ 1.4% (@ TJ = 25°C) internal reference voltage ■ -600/+800 mA totem pole gate driver with active pull-down during UVLO ■ SO14 package SO-14 Applications PFC pre-regulators for: ■ HI-END AC-DC adapter/charger ■ Desktop PC, server, WEB server ■ IEC61000-3-2 OR JEIDA-MITI compliant SMPS, in excess of 250W Table 1. Device summary Part number Package DAP005 SO-14 DAP005TR SO-14 Packaging Tube Tape & Reel Figure 1. Block diagram TBO VCC GND ZCD AC_OK TRACKING BOOST 6 1:1 CURRENT MIRROR 1:1 BUFFER 3V 14 INV 1 2.5V + VOLTAGE from REGULATOR VFF COMP MULT VFF 23 5 1/V2 Ideal diode LINE VOLTAGE MULTIPLIER FEEDFORWARD Voltage references -+ 1.7V -+ LEADING-EDGE BLANKING 4 Vbias (INTERNAL SUPPLY BUS) INDUCTOR SATURATION DETECTION Q SAT VCC CS 12 11 1.4V 0.7V UVLO R1 COMPARATOR + R2 VREF2 UVLO ZERO CURRENT DETECTOR RQ S 15 V Driver Starter OFF STARTER 13 GD 0.2V 0.26V - + - + + + 10 - 0.52V 0.6V ON/OFF CONTROL (BROWNOUT DETECTION) DISABLE 9 PWM_STOP LATCH SAT Vbias 8 FEEDBACK FAILURE PROTECTION PWM_LATCH PFC_OK 7 2.5V February 2007 Rev 1 This is a document intended for a specific Customer. It must not be released without first contacting Division marketing. 1/39 www.st.com 39 Contents Contents DAP005 1 Description . 3 1.1 Pin connection 4 1.2 Pin description 4 2 Absolute maximum ratings . 6 3 Thermal data . 6 4 Electrical characteristics . 7 5 Typical electrical performance 11 6 Application information . 16 6.1 Overvoltage protection . 16 6.2 Feedback Failure Protection (FFP) . 18 6.3 Voltage Feedforward 18 6.4 THD optimizer circuit . [...]

3 page
image

DAP005 Datasheet


This entry was posted in Uncategorized. Bookmark the permalink.