CAT3604V

Doc. No. MD-5029 Rev. B

2

© Catalyst Semiconductor, Inc.

Characteristics subject to change without notice

ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

Unit

VIN, LEDx, C1±, C2± voltage

6

V

VOUT voltage

7

V

EN voltage

6

V

Storage Temperature Range

-65 to +160

°C

Junction Temperature Range

-40 to +150

°C

Lead Temperature

300

°C

RECOMMENDED OPERATING CONDITIONS

Parameter

Rating

Unit

VIN

2.5 to 5.5

V

Ambient Temperature Range

-40 to +85

°C

0 to 25

mA

Total Output Current

0 to 100

mA

LED Forward Voltage Range

1.3 to 4.3

V

Typical application circuit with external components is shown on page 1.

ELECTRICAL OPERATING CHARACTERISTICS

Symbol

Name

Conditions

Min

Typ

Max

Units

Quiescent Current

1x mode, no load

1.33 x mode, no load

1.5x mode, no load

2x mode, no load

1.0

1.7

2.2

2.4

mA

mA

mA

mA

Shutdown Current

1

µA

LED Current Accuracy

±2

%

LED Channel Matching

±1.5

%

Programmed LED Current

2.4

15

30

mA

RSET Regulated Voltage

0.58

0.6

0.62

V

Output Resistance (open loop)

1x mode

0.8

5

5

10

Ω

Ω

Ω

Ω

Charge Pump Frequency

1.33x and 2x mode

1.5x mode

0.8

1

1

1.3

1.3

1.6

MHz

MHz

Output short circuit Current Limit

50

mA

Input Current Limit

250

mA

1x to 1.33x, 1.33x to 1.5x or 1.5x to 2x

Transition Thresholds at any LED pin

130

mV

1x Mode Transition Hysteresis

400

mV

EN Pin

• Internal Pull-down Resistor

• Logic High Level

• Logic Low Level

1.3

100

0.4

kΩ

V

V

Thermal Shutdown

150

°C

Thermal Hysteresis

20

°C

Undervoltage lockout (UVLO) threshold

1.6

1.8

2.0

V