L6599 Datasheet, PDF (1/36 Pages) STMicroelectronics – High-voltage resonant controller

L6599
High-voltage resonant controller
Features
■ 50% duty cycle, variable frequency control of
resonant half-bridge
■ High-accuracy oscillator
■ Up to 500kHz operating frequency
■ Two-level OCP: frequency-shift and latched
shutdown
■ Interface with PFC controller
■ Latched disable input
■ Burst-mode operation at light load
■ Input for power-ON/OFF sequencing or
brownout protection
■ Non-linear soft-start for monotonic output
voltage rise
■ 600V-rail compatible high-side gate driver with
integrated bootstrap diode and high dV/dt
immunity
■ -300/800mA high-side and low-side gate
drivers with UVLO pull-down
■ DIP-16, SO-16N packages
Block diagram
DIP-16
SO-16N
Order code
Part number
L6599D
L6599TR
L6599N
Package
SO-16N
SO-16N
DIP-16
Packaging
Tube
Tape and reel
Tube
Applications
■ LCD & PDP TV
■ Desktop PC, entry-level server
■ Telecom SMPS
■ AC-DC adapter, open frame SMPS
DIS 8 ^DISABLE
+
1.85V -
STBY 5
1.25V
UVLO
-
+
Ifmin
+
RFmin 4
-
Css ₁
CF 3
VCO
Vcc
12
S Q ^DIS
R
STANDBY
2V
17V
UV
DETECTION
UVLO
SYNCHRONOUS
BOOTSTRAP DIODE
DEAD
TIME
DRIVING
LOGIC
HVG
DRIVER
LEVEL
SHIFTER
Vs
LVG DRIVER
CONTROL
LOGIC
2
ISEN_DIS
QS
R
6.3V
1.25V ^-
+
15
µA
7
+
-
UVLO
+
-
LINE_OK
ISEN_DIS
DIS
STANDBY
1.5V
0.8V
DELAY
LINE
H.V.
16 VBOOT
15 HVG
14
OUT
11 LVG
10
GND
6 ISEN
9 PFC_STOP
CBOOT
LC TANK
CIRCUIT
May 2006
Rev 1
1/36
www.st.com
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