ICE2AS01 データシートの表示（PDF） - Infineon Technologies

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ICE2AS01

Off-Line SMPS Current Mode Controller

Infineon Technologies 

ICE2AS01/S01G

ICE2BS01/S01G

Electrical Characteristics

Frequency Ratio fosc1/fosc2

ICE2AS01/G

4.5

4.65 4.9

Frequency Ratio fosc3/fosc4

ICE2BS01/G

3.18 3.35 3.53

Max Duty Cycle

Dmax

0.67 0.72 0.77

Min Duty Cycle

Dmin

0

-

-

PWM-OP Gain

AV

3.45 3.65 3.85

Max. Level of Voltage Ramp VMax-Ramp

-

0.85 -

V

VFB Operating Range Min Level VFBmin

0.3

-

-

V

VFB Operating Range Max level VFBmax

-

-

4.6

V

Feedback Resistance

RFB

3.0

3.7

4.9

kΩ

Soft-Start Resistance

RSoft-Start

42

50

62

kΩ

4.3.4 Protection Unit

VFB < 0V

Parameter

Symbol

Over Load & Open Loop

Detection Limit

Activation Limit of Overload &

Open Loop Detection

Deactivation Limit of

Overvoltage Detection

Overvoltage Detection Limit

VFB2

VSoftS1

VSoftS2

VVCC1

Latched Thermal Shutdown

Spike Blanking

TjSD

tSpike

4.3.5 Current Limiting

Limit Values

Unit

min. typ.

max.

4.65 4.8

4.95 V

5.15 5.3

5.46 V

3.88 4.0

4.12 V

16

16.5 17.2 V

130

140

150

°C

-

5

-

µs

Test Condition

VSoftS > 5.5V

VFB > 5V

VFB > 5V

VCC > 17.5V

VSoftS < 3.8V

VFB > 5V

guaranteed by design

Parameter

Symbol

Peak Current Limitation (incl. Vcsth

Propagation Delay Time)

(see Figure 7)

Leading Edge Blanking

tLEB

Limit Values

Unit

min. typ.

max.

0.95 1.00 1.05 V

-

220

-

ns

Test Condition

dVsense / dt = 0.6V/µs

Datasheet

17

30 Jun 2006

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