NCL30082(2013) Ver la hoja de datos (PDF) - ON Semiconductor

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NCL30082
(Rev.:2013)

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

ON Semiconductor 

NCL30082

Table 3. ELECTRICAL CHARACTERISTICS (Unless otherwise noted: For typical values TJ = 25°C, VCC = 12 V;

For min/max values TJ = −40°C to +125°C, Max TJ = 150°C, VCC = 12 V)

Description

Test Condition

Symbol

Min Typ

DIMMING SECTION

DIM pin voltage for zero output current (OFF voltage)

DIM pin voltage for maximum output current

Dimming range

Clamping voltage for DIM pin

Dimming pin pull−up current source

THERMAL FOLD−BACK AND OVP

VDIM(EN)

VDIM100

VDIM(range)

VDIM(CLP)

IDIM(pullup)

0.66 0.7

2.25 2.45

–

1.75

–

7.8

–

280

SD pin voltage at which thermal fold−back starts

SD pin voltage at which thermal fold−back stops

(Iout = 50% Iout(nom))

Reference current for direct connection of an NTC (Note 5)

Fault detection level for OTP (Note 5)

SD pin level at which controller re−start switching after OTP

detection

VSD decreasing

VSD increasing

VTF(start)

VTF(stop)

IOTP(REF)

VOTP(off)

VOTP(on)

0.9

1

0.64 0.68

80

85

0.47 0.5

0.64 0.68

Timer duration after which the controller is allowed to start

pulsing (Note 5)

tOTP(start)

180

–

Clamped voltage (SD pin left open)

Clamp series resistor

SD pin detection level for OVP

Delay before OVP or OTP confirmation (OVP and OTP)

THERMAL SHUTDOWN

SD pin open

VSD increasing

VSD(clamp)

RSD(clamp)

VOVP

TSD(delay)

1.13 1.35

–

1.6

2.35 2.5

15

30

Thermal Shutdown (Note 4)

Thermal Shutdown Hysteresis (Note 4)

BROWN−OUT

Device switching

(FSW around 65 kHz)

TSHDN

130 150

TSHDN(HYS)

–

50

Brown−Out ON level (IC start pulsing)

Brown−Out OFF level (IC shuts down)

BO comparators delay

Brown−Out blanking time

Brown−out pin bias current

4. Guaranteed by design

5. OTP triggers when RNTC = 4.7 kW

VSD increasing

VSD decreasing

VBO(on)

VBO(off)

tBO(delay)

tBO(blank)

IBO(bias)

0.90

1

0.85 0.9

–

30

35

50

−250 –

Max Unit

0.74 V

2.65 V

–

V

–

V

–

nA

1.2

V

0.72 V

90 mA

0.53 V

0.72 V

300 ms

1.57 V

–

kW

2.65 V

45

ms

170 °C

–

°C

1.10 V

0.95 V

–

ms

65 ms

250 nA

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