NCP1219 데이터 시트보기 (PDF) - ON Semiconductor

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NCP1219

PWM Controller with Adjustable Skip Level and External Latch Input

ON Semiconductor 

NCP1219

Table 3. ELECTRICAL CHARACTERISTICS (VHV = 60 V, VCC = 11.3 V, VFB = 2 V, VSkip/latch = 0 V, VCS = 0 V, VDRV = open, CCC =

0.1 mF, for typical values TJ = 25°C, for min/max values, TJ is –40°C to 125°C, unless otherwise noted)

Characteristics

Conditions

Symbol

Min

Typ

Max Unit

GATE DRIVE

Drive Resistance

DRV Sink

DRV Source

Rise Time (10% to 90%)

Fall Time (90% to 10%)

LATCH INPUT

VFB = 0 V, VDRV = 1 V

VDRV = VCC – 1 V

CDRV = 1000 pF (10% to 90%)

CDRV = 1000 pF (90% to 10%)

RSNK

RSRC

tr

tf

W

2.0

6.7

13

6.0

12.6

25

–

30

–

ns

–

20

–

ns

Latch Voltage Threshold

Latch Filter Delay

VSkip/latch = 5.2 V, apply voltage step

on Skip/latch pin

Vlatch

tlatch(delay)

3.4

3.9

4.6

V

–

50

–

ms

CYCLE SKIP

Default Skip Threshold

Skip Clamp Voltage

Skip Comparator Hysteresis

Skip Clamp Comparator

Hysteresis

VFB increasing, VSkip/latch = Open

VFB increasing, VSkip/latch = 2.0 V

VFB decreasing, VSkip/latch = 0.5 V

VFB decreasing, VSkip/latch = 2.0 V

Vskip

Vskip(MAX)

Vskip(HYS1)

Vskip(HYS2)

0.9

1.1

1.3

V

1.1

1.3

1.5

V

–

75

–

mV

–

75

–

mV

Skip Current

FAULTS PROTECTION

VSkip/latch = 0 V

Iskip

30

47

56

mA

Thermal Shutdown (Note 6)

Thermal Shutdown Hysteresis

Thermal Shutdown Delay

Overload Timer

5. Guaranteed by the IHV(off) test.

6. Guaranteed by design only.

Temperature Increasing

Temperature Decreasing

Apply voltage step on FB pin

TSHDN

TSHDN(HYS)

TSHDN(delay)

tOVLD

–

155

–

°C

–

40

–

°C

–

75

–

ms

–

118

–

ms

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