NCL30083(2013_02) Просмотр технического описания (PDF) - ON Semiconductor

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производитель

NCL30083
(Rev.:2013_02)

Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back

ON Semiconductor 

NCL30083

Reset

Timer has

finished

counting

4−s

Timer

OVP2 or

VCC_OVP

VCC > VCC(on)

Stop

BO_NOK high

or OTP

or TSD

or CS_Short

VCC < VCC(off)

or

BO_NOK ↓

VCC

Disch.

OVP2

or WOD_SCP

or Aux_SCP

or VCC_OVP

BO_NOK high

or OTP

or TSD

or CS_Short

Run

VCC < VCC(off)

With states: Reset

Stop

Run

→ Controller is reset, ICC = ICC(start)

→ Controller is ON, DRV is not switching, tOTP(start) has elapsed

→ Normal switching

VCC Disch. → No switching, ICC = ICC1, waiting for VCC to decrease to VCC(off)

4−s Timer → the auto−recovery timer is counting, VCC is ramping up and down between VCC(on) and VCC(off)

Figure 71. State Diagram for B Version Faults

http://onsemi.com

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