NCP1378DR2 データシートの表示（PDF） - ON Semiconductor

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NCP1378DR2

PWM Current−Mode Controller for Free−Running Quasi−Resonant Operation

ON Semiconductor 

NCP1378

HV

4 mA

VCC

PON

+

+

8.4 V

7.5 V

5.6 V (Fault)

Demag

5.2 V

+

+

OVP

To Internal

Supply

Fault

Mngt.

4.5 ms

Delay

8 ms

Blanking

S

Q

S* Q

R* R

GND

*S and R are level triggered whereas S is edge

triggered. R has priority over the other inputs.

Overload?

5 ms

Timeout

Timeout

Reset

+

+

50 mV

Resd Demag

10 V

VCC

Drv

Driver src = 20 sink = 10

4.2 V

Soft−Start = 1 ms

FB

+

/3

−

1V

200 mA

when DRV

is OFF

340 ns

CS

LEB

Demag

Figure 2. Internal Circuit Architecture

MAXIMUM RATINGS

Rating

Power Supply Voltage, VCC Pin, Continuous Voltage

Transient Power Supply Voltage, Duration < 10 ms, IVCC < 20 mA

Power Supply Voltage

Maximum Voltage on all other pins except Pin 8 (HV), Pin 6 (VCC) and Pin 5 (Drv)

Maximum Current into all pins except VCC (6), HV (8) and Demag (1) when 10 V ESD

diodes are activated

Maximum Current in Pin 1

Thermal Resistance, Junction−to−Case

Thermal Resistance, Junction−to−Air, SOIC Version

Thermal Resistance, Junction−to−Air, PDIP Version

Maximum Junction Temperature

Temperature Shutdown

Hysteresis in Shutdown

Storage Temperature Range

ESD Capability, HBM Model (All pins except VCC and HV)

Symbol

VCC Static

VCC Pulse

VCC, Drv

−

−

Idem

RqJC

RqJA

RqJA

TJMAX

−

−

−

−

Value

18

25

16

−0.3 to 10

5.0

+3.0/−2.0

57

178

100

150

155

30

−60 to +150

2.0

Unit

V

V

V

V

mA

mA

°C/W

°C/W

°C/W

°C

°C

°C

°C

kV

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