NXP Semiconductors
HF full bridge driver IC
Application with external control
Figure 4 shows an application containing a system
ground-referenced control circuit. Pin + LVS can be
connected to the same supply as the external oscillator
control unit and pin ? LVS is connected to SGND. Pin RC is
full voltage
handbook, high pagewidth
550 V (max)
Product specification
UBA2033
short-circuited to SGND. The bridge commutation
frequency is determined by the external oscillator. The
bridge disable input (pin BD) can be used to immediately
turn off all four MOSFETs in the full bridge.
low voltage
? LVS
1
28
GHR
R>100 Ω
HR
HL
R>100 Ω
EXTDR
2
27
FSR
+ LVS
3
26
SHR
C1
Ci
EXTERNAL
OSCILLATOR
CONTROL
CIRCUIT
HV
VDD
SU
DD
6
9
10
11
UBA2033TS
23
21
20
GLR
PGND
GLL
R>100 Ω
LR
IGNITOR
LL
R>100 Ω
BD
RC
12
13
17
16
SHL
FSL
C2
C3
SGND
14
15
GHL
GND
2002 Oct 08
Fig.4 External control configuration.
11
MBL460
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