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3

Note 2:

Enough current should be supplied into the VCC lead to keep the internal 15.6V zener clamp diode on this lead

Note 3:

The MAX lead is a voltage-controlled current source. For optimum dim interface current mirror performance,

this current should be kept between 0 and 750

µA.

Recommended Operating Conditions

For proper operation the device should be used within the recommended conditions.

Symbol

Definition

Min.

Max.

Units

High side floating supply voltage

Steady state high side floating supply offset voltage

-1

600

Supply voltage

Supply current

note 2

10

mA

VCO pin voltage

05

DIM pin voltage

0.5

5.0

MAX pin current (note 3)

-750

0

MIN pin voltage

1

3

—

5

Minimum frequency setting resistance

10

100

k

Ω

Shutdown pin current

-1

1

Current sensing pin current

-1

1

Junction temperature

-40

125

V

V

mA

Electrical Characteristics

Supply Characteristics

12.0

12.5

13.0

threshold

1.5

1.6

1.7

UVLO mode quiescent current

70

200

330

Fault-mode quiescent current

—

240

—

SD=5V, CS=2V, or

—

5.6

—

—

6.0

—

—

5.4

—

—

6.8

—

14.5

15.6

16.5

V

Symbol

Definition

Min.

Typ.

Max.

Units

Test Conditions

µA

V

mA

V