UNITRODE UCC2305, UCC3305 Technical data
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HID Lamp Controller
FEATURES DESCRIPTION
Regulates Lamp Power
•
Compensates For Lamp
•
Temperature
Fixed Frequency Operation
•
Current Mode Control
•
Overcurrent Protected
•
Overvoltage Shutdown
•
Open and Short Protected
•
High Current FET Drive Output
•
Operates Over Wide Battery
•
Voltage Range: 5V to 18V
The UCC3305 integrates all of the functions required to control and drive one
HID lamp.The UCC3305 is tailored to the demanding, fast turn-on requirements
of automobile headlamps, but is also applicable to all other lighting applications
where HID lamps are selected. HID lamps are ideal for any lighting applications
that can benefit from very high efficiency, blue-white light color, small physical
lamp size, and very long life.
The UCC3305 contains a complete current mode pulse width modulator, a lamp
power regulator, lamp temperature compensation, and total fault protection.
Lamp temperature compensation is critical for automobile headlamps, because
without compensation, light output varies dramatically from a cold lamp to one
that is fully warmed up.
The UCC2305 is tested for full performance with ambient temperature
from –40°C to +105°C while the UCC3305 is tested with ambient temperature
from 0°Cto+70°C. The UCC3305 is available in a 28 pin small-outline, surface
mount plastic package (SOIC).
application
INFO
available
UCC2305
UCC3305
BLOCK DIAGRAM
SLUS297B - SEPTEMBER 1995 - REVISED APRIL 2004
UDG-94091-1
UCC2305
UCC3305
ABSOLUTE MAXIMUM RATINGS
VCC Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V
BOOST Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0V
PWMOUT Current, Peak ............................±1.0A
PWMOUT Energy, Capacitive Load . . . . . . . . . . . . . . . . . 5.0µJ
Input Voltage, Any Input. . . . . . . . . . . . . . . . . . –0.3V to +10.0V
Output Current, QOUT, QOUT
Output Current, 5VREF, LPOWER, COMP. . . . . . . . . ±10.0mA
ISET Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.0mA
Storage Temperature . . . . . . . . . . . . . . . . . . . −65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . −55°C to +150°C
Lead Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
ELECTRICAL CHARACTERISTICS
OSC = 200pF to GND, BAT = 4V, LOADISENSE connected to LPOWER, VOUTSENSE = 0.666V, BOOST = 10.5V, COMP
connected to FB through a 100kΩresistor, –40°C<T
PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNITS
Overall Section
VCC Supply Current 0.1 1.0 mA
BOOST Supply Current 3.0 5.0 mA
BOOST Threshold to PUMP Stop 9.1 9.6 10.2 V
BOOST Threshold to PUMP Start 9.2 9.7 10.3 V
BOOST Threshold to PWMOUT 4.7 5.4 6.1 V
Battery Section
BAT Threshold to PWMOUT Stop 4.7 5.0 5.3 V
BAT Threshold to PWMOUT Start 4.15 4.8 5.0 V
BAT Input Current BAT = 4V –1 1
Oscillator & Divider Section
OSC Frequency 80 100 120 kHz
OSC Pull-Up Current OSC = 1.5V
DIVPAUSE Threshold to Pause 1.1 1.5 1.9 V
DIVPAUSE Threshold to Divide 0.8 1.2 1.6 V
DIVPAUSE Input Current 0V < DIVPAUSE < 6V –8 –5 –1
Reference Section
5VREF Voltage 4.85 5.0 5.1 V
ISET Voltage 4.8 4.8 5.2 V
Error Amplifier Section
FB Voltage 2.4 2.5 2.6 V
FB Input Current –1 0 1
FB Sink Current VOUTSENSE = 4V, FB = 4V 0.3 1.5 mA
FB Release Delay VOUTSENSE Step from 4V to 1V 15 30 43 ms
COMP Source Current FB = 2V, COMP = 4V –3.0 –0.2 mA
COMP Sink Current FB = 3V, COMP = 1V 0.2 1.0 mA
, FLT . . . . . . . . . . . . . . ±10.0mA
Unless otherwise stated, VCC = 6.6V, ISET = 100kΩto GND, ADJ = 100kΩto GND,
A<+105°C for the UCC2305, 0°C<TA<+70°C for the UCC3305, and TA=TJ.
CONNECTION DIAGRAM
PDIP-28 or SOIC-28 (Top View)
N or DW Package
−70 −50 −40 µA
µA
µA
µA
2
UCC2305
UCC3305
ELECTRICAL CHARACTERISTICS (cont.) Unless otherwise stated, VCC = 6.6V, ISET = 100k
to GND, ADJ = 100k
Ω
to GND, OSC = 200pF to GND, BAT = 4V, LOADISENSE connected to LPOWER, VOUTSENSE = 0.666V, BOOST = 10.5V,
COMP connected to FB through a 100kΩresistor, –40°C<T
T
A=TJ.
A<+105°C for the UCC2305, 0°C<TA<+70°C for the UCC3305, and
PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNITS
Load Power Amplifier Section
LOADISENSE Input Current –2.5 –0.1 2.5
LPOWER Source Current LPOWER = 0V –8.0 –0.4 mA
LPOWER Sink Current LPOWER = 1V 0.4 1.3 mA
LPOWER Voltage VOUTSENSE = 0.0V 0.32 0.40 0.48 V
VOUTSENSE = 0.45V 0.32 0.40 0.48 V
VOUTSENSE = 0.65V 0.41 0.46 0.51 V
VOUTSENSE = 0.88V 0.43 0.51 0.59 V
VOUTSENSE = 2.0V 0.43 0.51 0.59 V
VOUTSENSE = 0.7V, SLOPEC = 0V 0.29 0.34 0.41 V
Input Current Sense Section
ISENSEIN Threshold COMP = 5V, WARMUPC = 0V 0.16 0.21 0.28 V
COMP = 5V, WARMUPC = 10V 0.10 0.19 0.27 V
COMP = 1V, WARMUPC = 0V 0.07 0.10 0.2 V
ISENSEIN Bias Current OSC = 0V –15 –5 –2
OSC = 2V –80 –40 –15
VOUTSENSE Section
VOUTSENSE Threshold to PWMOUT 4.2 5.0 5.2 V
VOUTSENSE Threshold to FB 1.7 1.9 2.1 V
VOUTSENSE Threshold to NOTON 0.035 0.083 0.140 V
VOUTSENSE Input Current –1 1
OUTPUTS SECTION
PWMOUT High Voltage I
PWMOUT Low Voltage I
PUMPOUT High Voltage I
PUMPOUT Low Voltage I
PWMOUT = –100mA 9.15 10.0 V
PWMOUT = 100mA 0.3 0.5 V
PUMPOUT = –10mA 5.3 5.8 V
PUMPOUT = 10mA 1.0 1.8 V
PUMPOUT Frequency BOOST = 9.5V 35 50 60 kHz
NOTON High Voltage I
NOTON Low Voltage I
QOUT, QOUT
QOUT, QOUT
QOUT, QOUT
High Voltage IQOUT = –1mA or IQOUT = –1mA 5.0 6.3 V
Low Voltage IQOUT = 1mA or IQOUT = 1mA 0.1 0.45 V
Frequency 150 200 250 Hz
FLT High Voltage I
FLT Low Voltage I
NOTON = –1mA 5.0 6.3 V
NOTON = 1mA 0.1 0.3 V
FLT = –1mA 6.0 6.3 V
FLT = 1mA 0.1 0.3 V
Timing Capacitor Section
FLTC Discharge Current FLTC = 2.5V 35 60 100 nA
FLTC Charge Current FLTC = 2.5V –430 –300 –220 nA
FLTC Threshold to FAULT 4.65 4.9 5.1 V
SLOPEC Charge Current SLOPEC = 0.5V –165 –90 –60 nA
SLOPEC = 2.2 –105 –60 –40 nA
SLOPEC = 4.2 –50 –30 –10 nA
SLOPEC Voltage I
SLOPEC = –125nA 1.3 1.5 1.7 V
SLOPEC = –50nA 2.8 3.0 3.2 V
I
Ω
µA
µA
µA
µA
3
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