L6564HTR STMicroelectronics, L6564HTR Datasheet - Page 8

• Manufacturer Part Number: L6564HTR
• Description: Power Factor Correction ICs High Volt Start Up 700V PFC 100uA 6mA
• Manufacturer: STMicroelectronics

Specifications of L6564HTR

• Product Category: Power Factor Correction ICs
• Rohs: yes
• Maximum Power Dissipation: 0.75 W
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SO-14
• Minimum Operating Temperature: - 25 C

Pin connection
Table 3.
Figure 3.
8/35
10
11
12
13
14
n°
6
8
9
7
PFC_OK
Name
GND
HVS
ZCD
N.C.
N.C.
N.C.
V
GD
CC
Pin description (continued)
Typical system block diagram
PFC pre-regulator output voltage monitoring/disable function. This pin senses the output
voltage of the PFC pre-regulator through a resistor divider and is used for protection purposes.
If the voltage on the pin exceeds 2.5 V, the IC stops switching and restarts as the voltage on the
pin falls below 2.4 V. However, if at the same time the voltage of the INV pin falls below 1.66 V,
a feedback failure is assumed. In this case the device is latched off. Normal operation can be
resumed only by cycling V
threshold. If the voltage on this pin is brought below 0.23 V, the IC is shut down. To restart the
IC the voltage on the pin must go above 0.27 V. This can be used as a remote on/off control
input.
Not internally connected. Provision for clearance on the PCB to meet safety requirements.
High voltage startup. The pin, able to withstand 700 V, is to be tied directly to the rectified mains
voltage. A 1 mA internal current source charges the capacitor connected between the V
(14) and the GND pin (12) until the voltage on the V
then shut down. Normally, the generator is re-enabled when the V
ensure a low power throughput during short-circuit. Otherwise, when a latched protection is
tripped the generator is re-enabled as V
supplied.
Not internally connected. Provision for clearance on the PCB to meet safety requirements.
Not internally connected. Provision for clearance on the PCB to meet safety requirements.
Boost inductor demagnetization sensing input for transition-mode operation. A negative-going
edge triggers MOSFET turn-on.
Ground. Current return for both the signal part of the IC and the gate driver.
Gate driver output. The totem pole output stage is able to drive Power MOSFETs and IGBTs
with a peak current of 600 mA source and 800 mA sink. The high level voltage of this pin is
clamped at about 12 V to avoid excessive gate voltages.
Supply voltage of both the signal part of the IC and the gate driver. Sometimes a small bypass
capacitor (0.1 µF typ.) to GND might be useful to get a clean bias voltage for the signal part of
the IC.
PFC PRE-REGULATOR
V
inac
L6564H
PWM is turned off in case of PFC's
anomalous operation for safety
to the load condition to ease compliance
PFC can be handled off/on according
with energy saving regulations.
CC
Doc ID 022960 Rev 2
. bringing its value lower than 6 V before moving up to the turn-on
CC
CONTROLLER
Resonant
PWM or
Function
reaches the UVLO threshold to keep the latch
DC-DC CONVERTER
CC
pin reaches the startup threshold, it is
CC
V
outdc
voltage falls below 6 V to
AM11477v1
L6564H
CC
pin