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UBA2036TS 데이터시트 PDF




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기능 Full bridge control IC
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UBA2036TS 데이터시트, 핀배열, 회로
UBA2036TS
Full bridge control IC for HID automotive lighting
Rev. 01 — 30 October 2008
Product data sheet
1. General description
The UBA2036 is a high voltage monolithic Integrated Circuit (IC) manufactured in a High
Voltage Silicon On Insulator (HVSOI) process. This circuit is designed for driving
MOSFETs in a full bridge configuration. In addition, it features a disable function, an
internal adjustable oscillator and an external clock input function with a high-voltage level
shifter for driving the bridge. To guarantee an accurate 50 % duty cycle, the oscillator
signal can be passed through a divider before being fed to the output drivers.
The UBA2036 is especially suitable for High Intensity Discharge (HID) lamp drivers for car
headlights, projectors and general lighting applications.
2. Features
I Full bridge driver circuit
I Integrated bootstrap diodes
I 464 V integrated high voltage level shift function to drive HID lamps below ground level
I 550 V series regulator input to make the internal supply
I 550 V maximum bridge voltage
I Accurate bridge disable function
I Input for start-up delay
I Adjustable oscillator frequency
I Selectable frequency divider
I Predefined bridge position during start-up
I Adaptive non-overlap
3. Applications
I The UBA2036 can drive (via the power MOSFETs) any kind of load in a full bridge
configuration
I The circuit is especially designed as a commutator controller for HID lamps in car
headlights, projectors and general lighting applications
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
UBA2036TS
SSOP28
Description
plastic shrink small outline package; 28 leads;
body width 5.3 mm
Version
SOT341-1




UBA2036TS pdf, 반도체, 판매, 대치품
NXP Semiconductors
UBA2036TS
Full bridge control IC for HID automotive lighting
Table 2.
Symbol
GLL
PGND
n.c.
GLR
n.c.
n.c.
SHR
FSR
GHR
Pin description …continued
Pin Description
20 gate driver output for lower left MOSFET
21 power ground
22 not connected
23 gate driver output for lower right MOSFET
24 not connected
25 not connected
26 source upper right MOSFET
27 floating supply right
28 gate driver upper right MOSFET
7. Functional description
7.1 Supply voltage
The UBA2036 is powered by a supply voltage applied to pin HV, e.g. the supply voltage of
the full bridge. The IC generates its own low supply voltage for its internal circuitry.
Therefore an additional low voltage supply is not required. A capacitor has to be
connected to pin VDD to obtain a ripple-free internal supply voltage. The circuit can also
be powered by a low voltage supply directly applied to pin VDD. In this case pin HV should
be connected to pin VDD or pin SGND. The maximum current that the internal series
regulator can deliver, is temperature dependent. This is shown in Figure 3.
7.2 Start-up
With an increasing supply voltage the IC enters the start-up state i.e. the upper power
transistors are set in off-state and the lower power transistors are switched on. During the
start-up state the bootstrap capacitors are charged. The start-up state is defined until
VVDD = Vstartup(VDD) or VHV = Vstartup(HV). The state of the outputs during the start-up phase
is overruled by the bridge disable function.
7.3 Oscillation state
At the moment the supply voltage on pin VDD exceeds Vstartup(VDD) or the supply voltage
on pin VHV exceeds Vstartup(HV), the output voltage of the full bridge depends on the control
signals on pins CLK, SU, DD and BD. This is listed in Table 3.
As soon as the supply voltage on pin VDD becomes lower than VUVLO(VDD) or the supply
voltage on pin VHV becomes lower than VUVLO(HV), the IC enters the start-up state again.
Table 3. Driver
Gate driver output voltages as function of the logical levels at the pins BD, SU, DD and CLK.
Device
state
BD SU DD CLK GHL
GHR
GLL
GLR
Start-up
state
1- -
0- -
-
-
0 (= VSHL) 0 (= VSHR)
0 (= VSHL) 0 (= VSHR)
0 (= VPGND)
1 (= VVDD)
0 (= VPGND)
1 (= VVDD)
UBA2036TS_1
Product data sheet
Rev. 01 — 30 October 2008
© NXP B.V. 2008. All rights reserved.
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UBA2036TS 전자부품, 판매, 대치품
NXP Semiconductors
UBA2036TS
Full bridge control IC for HID automotive lighting
Table 4. Limiting values …continued
In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are measured with respect to signal
ground (pin 14); positive currents flow into the chip. The voltage ratings are valid provided other ratings are not violated.
Symbol
Parameter
Conditions
Min Max Unit
ESD
VESD
electrostatic discharge voltage human body model
HV, VSS(CLK), VDD(CLK),CLK, FSL,
FSR, GHL, GHR, SHL, SHR
-
900 V
other pins
- 2 kV
machine model; all pins
- 200 V
charged device model; all pins
- 500 V
9. Thermal characteristics
Table 5.
Symbol
Rth(j-a)
Thermal characteristics
Parameter
thermal resistance from
junction to ambient
10. Characteristics
Conditions
in free air
Typ Unit
100 K/W
Table 6. Characteristics
Tj = -40 °C to 125 °C; all voltages are measured with respect to signal ground (pin 14); currents are positive when flowing into
the IC, Unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max Unit
High voltage
Ileak leakage current
Start-up via HV pin
pin HV; IHV (VHV = 565 V) IHV
(VHV = 500 V)
pin FSL;
VFSL = VSHL = VGHL = 564 V
pin FSR;
VFSR = VSHR = VGHR = 564 V
pin VSS(CLK);
VSS(CLK) = Vclk = 450 V
pin VDD(CLK);
VDD(CLK) = Vclk = 464 V
- 0 10 µA
- 0 5 µA
- 0 5 µA
- 0 10 µA
- 0 10 µA
II(HV)
Vstartup(HV)
VUVLO(HV)
input current on pin HV
start-up voltage on pin HV
undervoltage lockout voltage
on pin HV
VHV = 80 V
- 590 825 µA
11.3 13.2 14.7 V
8.6 10.7 12.2 V
Vhys hysteresis voltage
VVDD
voltage on pin VDD
Start-up via VDD pin
VHV = 20 V
2 2.5
10.5 12
3V
13.5 V
II(VDD)
Vstartup(VDD)
input current on pin VDD
start-up voltage on pin VDD
VVDD = 8.25 V
- 500
8.25 9.0
800 µA
9.75 V
UBA2036TS_1
Product data sheet
Rev. 01 — 30 October 2008
© NXP B.V. 2008. All rights reserved.
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UBA2036TS

Full bridge control IC

NXP Semiconductors
NXP Semiconductors

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