UBA2032 NXP Semiconductors, UBA2032 Datasheet - Page 14

• Manufacturer Part Number: UBA2032
• Description: Full Bridge Driver Ic
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Application with negative lamp voltage
The life of an HID lamp depends of the rate of sodium
migration through the quartz wall of the lamp. To minimize
this, the lamp must operate negative with respect to the
system ground. Figure 7 shows a full bridge with an HID
lamp, along with a control circuit referenced to the system
2005 Mar 24
handbook, full pagewidth
Full bridge driver IC
(1) See Section “Gate resistors”.
system
GND
C i
high voltage
450 V (max)
C 3
CONTROL
EXTDR
BRIDGE
SGND
UNIT
V DD
LVS
LVS
HV
SU
DD
BD
RC
10
11
12
13
14
1
2
3
6
9
Fig.7 Application with a negative lamp voltage.
UBA2032TS
low voltage supply
28
27
26
23
21
20
17
16
15
PGND
GHR
FSR
SHR
GLR
GLL
SHL
FSL
GHL
14
R >100
R>100
C 2
C 1
ground and with a bridge voltage operating at high
negative voltages with respect to the system ground.
Pin +LVS and pin HV can be connected to the same
supply as the control unit The output state of the bridge is
related to the position of pin EXTDR. See also the timing
diagram.
(1)
(1)
HR
LR
IGNITOR
HL
LL
R>100
R>100
Product specification
UBA2032
(1)
(1)
MGU803