L6564H Datasheet, PDF (1/35 Pages) STMicroelectronics – Onboard 700 V startup source

L6564H
High voltage startup transition-mode PFC
Features
■ Onboard 700 V startup source
■ Fast “bi-directional” input voltage feedforward
(1/V² correction)
■ Accurate adjustable output overvoltage
protection
■ Protection against feedback loop
disconnection (latched shutdown)
■ Inductor saturation protection
■ AC brownout detection
■ Low (≤100 µA) startup current
■ 6 mA max. operating bias current
■ 1% (@ T_J = 25 °C) internal reference voltage
■ -600/+800 mA totem pole gate driver with
active pull-down during UVLO
■ SO-14 package
Figure 1. Block diagram
Datasheet − production data
SO-14
Application
■ PFC pre-regulators for:
– High-end AC-DC adapter/charger
– IEC61000-3-2 or JEITA-MITI compliant
SMPS, in excess of 400 W
– SMPS for LED luminaires
ZCD
HVS
Vcc
0.23 V
0.27 V
+
6
PFC_OK
-
2.5 V
2.4 V
-
+
1.66 V
+
-
Disable
11
1.4V
0.7V
Zero Current
Detector
-
+
OVP
L_OVP
8
Voltage
ref erences
VOLTAGE
REGULATOR
Internal Supply Bus
S
Q1
R
Icharge
UVLO
UVLO
14
13
GD
2
COMP
INV
1
2.5 V
-
+
Error Amplif ier
MULT
3
STARTER
Starter
OFF
DISABLE
Q1
Disable
Q
LEB
OVP
ON/OFF Control
S
L_OVP
R
UVLO
-
+
Ideal rectif ier
ON/OFF Control
+ _{0.8 V}
-
0.88 V
1/V² MULTIPLIER
5
-+
+
MAINS DROP
DETECTOR
1.7 V
-
Disable
12
GND
4
CS
VFF
AM11475v1
June 2012
This is information on a product in full production.
Doc ID 022960 Rev 2
1/35
www.st.com
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