NCP1215
http://onsemi.com
3
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PIN FUNCTION DESCRIPTION
ÁÁÁÁ
ÁÁÁÁ
TSOP−6
ÁÁÁÁ
ÁÁÁÁ
SOIC−8
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Symbol
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Description
4
1
FB
The FB pin provides voltage feedback loop. The current injected into the pin determines the
primary switch OFF time interval. It also influences the peak value of the primary current.
3
2
CT
Connection for an external timing programming capacitor.
1
3
CS
The CS pin senses the power switch current.
2
4
GND
Primary and internal ground.
6
5
Gate
Output drive for an external power MOSFET.
5
6
Vcc
Power supply voltage and Undervoltage Lockout.
7
7
NC
Unconnected pin.
8
8
NC
Unconnected pin.
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MAXIMUM RATINGS
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
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Rating
ÁÁÁÁÁ
ÁÁÁÁÁ
Symbol
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Value
ÁÁÁ
ÁÁÁ
Unit
Power Supply Voltage
V
cc
18
V
FB Pins Voltage Range
V
FB
−0.3 to 18
V
CS and CT Pin Voltage Range
V
in
−0.3 to 10
V
Thermal Resistance, Junction−to−Air (SOIC−8 Version)
R
q
JA
178
°
C/W
Junction Temperature
T
J
150
°
C
Storage Temperature Range
T
stg
−60 to +150
°
C
ESD Voltage Protection, Human Body Model (Except CT Pin)
V
ESD−HBM
2.0
kV
ESD Voltage Protection, Human Body Model for CT Pin
V
ESD−HBM−CT
1.5
kV
ESD Voltage Protection, Machine Model (Except CT Pin)
V
ESD−MM
200
V
ESD Voltage Protection, Machine Model for CT Pin
V
ESD−MM−CT
150
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.
