UBA2033 Ver la hoja de datos (PDF) - Philips Electronics
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Fabricante
UBA2033 Datasheet PDF : 20 Pages
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Philips Semiconductors
HF full bridge driver IC
Product specification
UBA2033
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
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.
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550 V (max)
low voltage
EXTERNAL
Ci
OSCILLATOR
CONTROL
CIRCUIT
C3
HR
−LVS 1
28 GHR
R>100 Ω
EXTDR
2
27 FSR
+LVS 3
26 SHR
C1
HV
6
VDD
9
23 GLR
LR
R>100 Ω
SU UBA2033TS PGND
10
21
DD 11
GLL
20
BD
12
RC 13
SHL
17
16 FSL
C2
SGND 14
15 GHL
IGNITOR
GND
MBL460
Fig.4 External control configuration.
HL
R>100 Ω
LL
R>100 Ω
2002 Oct 08
11
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