UNITRODE UCC2305, UCC3305 Technical data

UNITRODE UCC2305, UCC3305 Technical data

UCC2305

application

INFO

available

UCC2305

UCC3305

HID Lamp Controller

FEATURES

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

DESCRIPTION

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° C to +70° C. The UCC3305 is available in a 28 pin small-outline, surface mount plastic package (SOIC).

BLOCK DIAGRAM

UDG-94091-1

SLUS297B - SEPTEMBER 1995 - REVISED APRIL 2004

ABSOLUTE MAXIMUM RATINGS

VCC Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V

BOOST Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 12.0V PWMOUT Current, Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1.0A

PWMOUT Energy, Capacitive Load . . . . . . . . . . . . . . . . . 5.0µ J Input Voltage, Any Input. . . . . . . . . . . . . . . . . . –0.3V to +10.0V Output Current, QOUT, QOUT, FLT . . . . . . . . . . . . . . ± 10.0mA 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

UCC2305

UCC3305

CONNECTION DIAGRAM

PDIP-28 or SOIC-28 (Top View)

N or DW Package

ELECTRICAL CHARACTERISTICS Unless otherwise stated, VCC = 6.6V, ISET = 100kΩ to GND, ADJ = 100kΩ to GND, OSC = 200pF to GND, BAT = 4V, LOADISENSE connected to LPOWER, VOUTSENSE = 0.666V, BOOST = 10.5V, COMP connected to FB through a 100kΩ resistor, –40° C<TA<+105° C for the UCC2305, 0° C<TA<+70° C for the UCC3305, and TA=TJ.

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

µ A

Oscillator & Divider Section

 

 

 

 

 

OSC Frequency

 

80

100

120

kHz

OSC Pull-Up Current

OSC = 1.5V

− 70

− 50

− 40

µ A

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

µ A

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

µ A

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

2

UCC2305

UCC3305

ELECTRICAL CHARACTERISTICS (cont.) Unless otherwise stated, VCC = 6.6V, ISET = 100kΩ to GND, ADJ = 100kΩ to GND, OSC = 200pF to GND, BAT = 4V, LOADISENSE connected to LPOWER, VOUTSENSE = 0.666V, BOOST = 10.5V, COMP connected to FB through a 100kΩ resistor, –40° C<TA<+105° C for the UCC2305, 0° C<TA<+70° C for the UCC3305, and TA=TJ.

 

PARAMETER

TEST CONDITIONS

MIN.

TYP.

MAX.

UNITS

Load Power Amplifier Section

 

 

 

 

 

 

 

 

 

LOADISENSE Input Current

 

 

 

 

 

–2.5

–0.1

2.5

µ A

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

µ A

 

 

 

OSC = 2V

–80

–40

–15

µ A

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

µ A

OUTPUTS SECTION

 

 

 

 

 

 

 

 

 

PWMOUT High Voltage

IPWMOUT = –100mA

9.15

10.0

 

V

PWMOUT Low Voltage

IPWMOUT = 100mA

 

0.3

0.5

V

PUMPOUT High Voltage

IPUMPOUT = –10mA

5.3

5.8

 

V

PUMPOUT Low Voltage

IPUMPOUT = 10mA

 

1.0

1.8

V

PUMPOUT Frequency

BOOST = 9.5V

35

50

60

kHz

NOTON High Voltage

INOTON = –1mA

5.0

6.3

 

V

NOTON Low Voltage

INOTON = 1mA

 

0.1

0.3

V

 

 

 

 

 

 

 

 

 

 

 

 

QOUT, QOUT High Voltage

IQOUT = –1mA or IQOUT = –1mA

5.0

6.3

 

V

 

 

 

 

 

 

 

 

 

 

 

 

QOUT, QOUT Low Voltage

IQOUT = 1mA or IQOUT = 1mA

 

0.1

0.45

V

 

 

 

 

 

 

 

 

 

 

 

 

QOUT, QOUT Frequency

 

 

 

 

 

150

200

250

Hz

FLT High Voltage

IFLT = –1mA

6.0

6.3

 

V

FLT Low Voltage

IFLT = 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

ISLOPEC = –125nA

1.3

1.5

1.7

V

 

 

 

ISLOPEC = –50nA

2.8

3.0

3.2

V

3

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