IX9908

4

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R01

1.5 Electrical Characteristics

1.5.1 Power Supply

Note: The electrical characterization involves the spread of values within the specified supply voltage and junction

1.5.2 Internal Voltage Reference

1.5.3 PWM Section

1.5.4 Current Sense

1.5.5 Soft Start

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

--

35

mA

--

35

Maximum Input Current of Startup Cell

--

35

mA

Leakage Current of Startup Cell

-0.2

50

A

Supply Current in Normal Operation

GD Low

-1.8

2.9

mA

-

17

18

19

V

-

9.8

10.5

11.2

V

-

-7.5

-

V

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

Internal Reference Voltage

4.8

5

5.2

V

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

VR Pull-Up Resistor

-

14

23

33

k



PWM-OP Gain

-

2.95

3

3.05

-

Offset for Voltage Ramp

-

0.63

0.7

0.77

V

Maximum On-Time in Normal Operation

-

22

30

41

s

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

Current Sense Threshold

-

0.97

1.03

1.09

V

Leading Edge Blanking Time

-

200

330

460

ns

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

Soft-Start Time

-

8.5

12

-

ms

Soft-Start Time Step

-

-3

-

ms

Internal Regulation Voltage at First Step

-

-1.76

-

V

Internal Regulation Voltage Step at Soft Start

-

-0.56

-

V