UBA2033TS PHILIPS [NXP Semiconductors], UBA2033TS Datasheet - Page 10

• Manufacturer Part Number: UBA2033TS
• Description: HF full bridge driver IC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
APPLICATION INFORMATION
Basic application
A basic full bridge configuration with an HID lamp is shown
in Fig.3. The bridge disable, the start-up delay and the
external drive functions are not used in this application.
The pins LVS, LVS, EXTDR and BD are short-circuited
to SGND. The internal oscillator is used and to realize a
50% duty cycle the internal divider function has to be used
2002 Oct 08
handbook, full pagewidth
HF full bridge driver IC
GND
C i
high voltage
550 V (max)
C 3
C osc
R osc
EXTDR
SGND
V DD
LVS
LVS
DD
RC
HV
SU
BD
12
13
14
1
2
3
6
9
10
11
UBA2033TS
Fig.3 Basic configuration.
28
27
26
23
21
20
17
16
15
PGND
GHR
FSR
SHR
GLR
GLL
SHL
FSL
GHL
10
C 2
by connecting pin DD to SGND. The IC is powered by the
high voltage supply. Because the internal oscillator is
used, the bridge commutating frequency is determined by
the values of R
when the HV supply voltage exceeds the level of release
power drive (typically 12.5 V on pin HV). If the supply
voltage on pin HV drops below the reset level of power
drive (typically 10 V on pin HV), the UBA2033 enters the
start-up state.
R>100
R>100
C 1
HR
LR
MBL459
osc
IGNITOR
and C
osc
. The bridge starts oscillating
HL
LL
Product specification
R>100
R>100
UBA2033