TECHNOLOGY: BCD 鈥漁FF-LINE鈥?/div>
FLOATING SUPPLY VOLTAGE UP TO 600V
GND REFERRED SUPPLY VOLTAGE UP TO
18V
DRIVER CURRENT CAPABILITY:
- SINK CURRENT = 270mA
- SOURCE CURRENT = 170mA
VERY LOW START UP CURRENT: 150碌A
VERY LOW OPERATING CURRENT: <2mA
UNDERVOLTAGE LOCKOUT
PROGRAMMABLE OSCILLATOR
FREQUENCY
dV/dt IMMUNITY UP TO
鹵
50V/ns
DESCRIPTION
The device is a high voltage half bridge driver
with built-in oscillator. The frequency of the oscil-
lator can be programmed using external resistor
BLOCK DIAGRAM
Minidip
SO8
ORDERING NUMBERS:
L6571A
L6571B
L6571AD
L6571BD
and capacitor.
The output drivers are designed to drive external
n-channel power MOSFET and IGBT. The inter-
nal logic assures a minimum dead time to avoid
cross-conduction of the power devices.
H.V.
C
VS
V
S
R
HV
BOOT
BIAS
REGULATOR
LEVEL
SHIFTER
HIGH
SIDE
DRIVER
HVG
C
BOOT
V
S
R
F
R
F
C
F
COMP
BUFFER
OUT
LOAD
C
F
COMP
V
S
LOGIC
LOW SIDE
DRIVER
LVG
GND
D96IN433
June 2000
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