NCP1215A ON Semiconductor, NCP1215A Datasheet - Page 4

• Manufacturer Part Number: NCP1215A
• Description: Low Cost Variable OFF Time Switched Mode Power Supply Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
otherwise noted.)
VOLTAGE FEEDBACK
CT PIN − OFF TIME CONTROL
CURRENT SENSE
GATE DRIVE
POWER SUPPLY
Offset Voltage
Maximum CT Pin Voltage at FB Current = 25 mA (Including V
Maximum CT Pin Voltage at FB Current = 50 mA (Including V
Source Current (CT Pin Grounded)
Source Current Maximum Voltage Capability
Minimum CT Pin Voltage (Pin Unloaded, Discharge Switch Turned On)
Minimum Source Current (I
Maximum Source Current (I
Comparator Threshold Voltage
Propagation Delay (CS Falling Edge to Gate Output)
Sink Resistance (I
Source Resistance (I
V
Undervoltage Lockout Threshold Voltage
Hysteresis (V
V
V
CC
CC
CC
(C
GATE
Startup Voltage
Startup Current Consumption (V
Steady State Current Consumption
= 1.0 nF, f
startup
sink
− V
SW
source
= 30 mA)
UVLO
= 100 kHz, FB open)
= 30 mA)
FB
FB
)
Characteristic
= 180 mA, CT Pin Grounded)
= 0 mA, CT Pin Grounded)
CC
(V
= 8.0 V)
CC
= 12 V, for typical values T
http://onsemi.com
NCP1215A
offset
offset
)
)
4
J
= 25°C, for min/max values T
V
V
Symbol
V
V
I
I
I
I
V
V
CC−start
CT−25mA
CT−50mA
CS−max
V
CS−min
CC−SW
CT−max
CT−min
t
R
V
R
startup
delay
UVLO
offset
I
V
CT
hys
OL
OH
th
1.05
0.55
Min
2.4
3.6
8.0
8.0
7.2
2.2
40
15
25
55
−
−
−
−
−
J
= 0°C to +105°C, unless
1.19
12.5
12.5
Typ
215
3.1
4.6
9.8
6.5
9.0
3.5
2.8
0.9
49
42
40
80
−
Max
1.34
14.2
1.75
11.5
310
130
4.3
6.2
6.5
20
16
58
80
90
−
−
−
Unit
mV
mV
mA
mA
mA
mA
mA
ns
W
W
V
V
V
V
V
V
V