NCP1216, NCP1216A

http://onsemi.com

3

Q

Set

Reset

1 V

HV

1

2

3

4

5

6

7

8

Drv

GND

NC

Current

Sense

Adj

FB

Skip Cycle Comparator

1.1 V

Overload?

Fault Duration

20 k

19 k

Clock Jittering

57 k

25 k

96 k

25 k

5 V

Figure 2. Internal Circuit Architecture

−

+

−

+

Pull−up Resistor

UVLO High and Low

Internal Regulator

HV Current Source

Q Flip−Flop

Reset

65 kHz

100 kHz

133kHz

Ramp

Compensation

−

+

220 ns

L.E.B

$500 mA

1 ms SS*

* Available for ”A” version only.

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

16

V

Maximum Voltage on Low Power Pins (except Pin 8 and Pin 6)

−0.3 to 10

V

500

V

450

V

Minimum Operating Voltage on Pin 8 (HV)

30

V

Diodes are Activated

5.0

mA

Thermal Resistance Junction−to−Air, PDIP−7 Version

Thermal Resistance Junction−to−Air, SOIC−8 Version

100

178

°C/W

Maximum Junction Temperature

150

°C

Temperature Shutdown

TSD

155

°C

Hysteresis in Shutdown

30

°C

Storage Temperature Range

−60 to +150

°C

2.0

kV

ESD Capability, Machine Model

200

V

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit

values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,

damage may occur and reliability may be affected.