NCP1200A
Adj
1
HV
8
HV CURRENT
SOURCE
SKIP CYCLE
COMPARATOR
80 k
1.2 V
24 k
NC
7
FB
2
+
−
UVLO HIGH AND LOW
INTERNAL REGULATOR
INTERNAL V
CC
CURRENT
SENSE
Q FLIP−FLOP
DCmax = 80%
V
6
CC
SET
Q
250 ns
L.E.B.
40−60−100 kHz
CLOCK
3
RESET
+
−
20 k
57 k
Drv
5
GROUND
4
V
REF
+
−
25 k
±250 mA
1 V
5 V
OVERLOAD?
FAULT DURATION
Figure 2. Internal Circuit Architecture
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
V
CC
16
V
Thermal Resistance Junction−to−Air, PDIP−8 Version
Thermal Resistance Junction−to−Air, SOIC Version
R
R
100
178
°C/W
°C/W
q
q
JA
JA
Maximum Junction Temperature
Temperature Shutdown
T
150
145
°C
°C
°C
kV
V
J(max)
−
Storage Temperature Range
−
−
−
−
−
−
−60 to +150
2.0
ESD Capability, HBM Model (All pins except V and HV)
CC
ESD Capability, Machine Model
200
Maximum Voltage on Pin 8 (HV), Pin 6 (V ) Grounded
450
V
CC
Maximum Voltage on Pin 8 (HV), Pin 6 (V ) Decoupled to Ground with 10 mF
500
V
CC
Minimum Operating Voltage on Pin 8 (HV)
40
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.
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