NCP1203
Adj
1
HV CURRENT
SOURCE
80 k
SKIP CYCLE
COMPARATOR
INTERNAL V
CC
24 k
CURRENT
SENSE
3
250 ns
L.E.B.
40−60−100 kHz
CLOCK
SET
Q FLIP−FLOP
DCmax = 80%
RESET
UVLO HIGH AND LOW
INTERNAL REGULATOR
HV
8
FB
2
1.2 V
+
−
NC
7
V
CC
Q
OVERLOAD
MANAGEMENT
6
20 k
GROUND
4
+
−
V
REF
57 k
+
−
Drv
1V
±250
mA
5
25 k
Figure 2. Internal Circuit Architecture
MAXIMUM RATINGS
Rating
Power Supply Voltage
Power Supply Voltage on all other pins except Pin 5 (Drv), Pin 6 (V
CC
) and Pin 8 (HV)
Maximum Current into all pins except Pin 6 (V
CC
) and Pin 8 (HV) when
10 V ESD diodes are activated
Thermal Resistance Junction−to−Air, PDIP−8 Version
Thermal Resistance Junction−to−Air, SOIC Version
Maximum Junction Temperature
Temperature Shutdown
Hysteresis in Shutdown
Storage Temperature Range
ESD Capability, HBM Model, All pins except Pin 6 (V
CC
) and Pin 8 (HV)
ESD Capability, Machine Model
Maximum Voltage on Pin 6 (V
CC
) and Pin 8 (HV) Decoupled to Ground with 10
mF
Symbol
V
CC
, Drv
−
−
Value
16
−0.3 to 10
5.0
100
178
150
170
30
−60 to +150
2.0
200
450
Unit
V
V
mA
°C/W
°C/W
°C
°C
°C
°C
KV
V
V
R
qJA
R
qJA
TJ
MAX
−
−
−
−
−
−
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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