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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

regulating its voltage.

Note 3:

Due to the fact that the RT input is a voltage-controlled current source, the total RT lead current is the sum of all

the parallel current sources connected to that lead. For optimum oscillator current mirror performance, this total

current should be kept between 50

µA and 500µA. During the preheat mode, the total current flowing out of the RT

lead consists of the RPH lead current plus the current due to the RT resistor. During the run mode, the total RT lead

current consists of the RUN lead current plus the current due to the RT resistor.

Electrical Characteristics

Symbol Definition

Min.

Typ.

Max.

Units

Test Conditions

10.5

11.4

12.4

threshold

1.5

1.8

2.2

UVLO mode quiescent current

50

150

300

75

200

300

SD=5V, CS = 2V or

2.9

3.8

4.3

connected to COM

4.0

5.5

7.0

5.6k

Supply Characteristics

µA

mA

14.5

15.6

16.5

V

V

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

-3.0

600

Supply voltage

Supply current

Note 2

10

mA

0

VCC

V

220

—

pF

Deadtime resistance

1.0

—

Over-current (CS+) threshold programming resistance

—

50

-500

-50

RPH lead current (Note 3)

0

450

RUN lead current (Note 3)

0

450

Shutdown lead current

-1

1

Current sense lead current

-1

1

Junction temperature

-40

125

VBSMIN

Minimum required VBS voltage for proper HO functionality

—

5

V

V

k

Ω

uA

mA