NCP1217, NCP1217A
ELECTRICAL CHARACTERISTICS (For typical values T J = 25 ? C, for min/max values T J = 0 ? C to +125 ? C, Max T J = 150 ? C,
V CC = 11 V unless otherwise noted.)
Characteristic
Pin
Symbol
Min
Typ
Max
Unit
SUPPLY SECTION (All frequency versions, unless otherwise noted)
Turn--On Threshold Level, V CC Going Up
Minimum Operating Voltage After Turn--On
V CC Decreasing Level at which the Latchoff Phase Ends
Internal IC Consumption, No Output Load on Pin 5,
F SW = 65 kHz
Internal IC Consumption, No Output Load on Pin 5,
F SW = 100 kHz
Internal IC Consumption, No Output Load on Pin 5,
F SW = 133 kHz
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
F SW = 65 kHz
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
F SW = 100 kHz
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
F SW = 133 kHz
Internal IC Consumption, Latchoff Phase, V CC = 6.0 V
6
6
6
6
6
6
6
6
6
6
VCC ON
VCC min
VCC latch
ICC1
ICC1
ICC1
ICC2
ICC2
ICC2
ICC3
11.8
6.9
--
--
--
--
--
--
--
--
12.8
7.6
5.6
960
1020
1060
1.7
2.1
2.4
230
13.8
8.3
--
1110
(Note 1)
1180
(Note 1)
1200
(Note 1)
2.0
(Note 1)
2.4
(Note 1)
2.9
(Note 1)
--
V
V
V
m A
m A
m A
mA
mA
mA
m A
INTERNAL STARTUP CURRENT SOURCE (T J > 0 ? C)
High--Voltage Current Source, V CC = 10 V
High--Voltage Current Source, V CC = 0
8
8
IC1
IC2
3.5
(Note 2)
--
6.0
7.0
7.8
--
mA
mA
DRIVE OUTPUT
Output Voltage Rise--Time @ CL = 1.0 nF, 10--90% of a 12 V
Output Signal
Output Voltage Fall--Time @ CL = 1.0 nF, 10--90% of a 12 V
Output Signal
Source Resistance
Sink Resistance
5
5
5
5
T r
T f
R OH
R OL
--
--
15
5.0
60
20
20
10
--
--
35
18
ns
ns
Ω
Ω
CURRENT COMPARATOR (Pin 5 Unloaded)
Input Bias Current @ 1.0 V Input Level on Pin 3
Maximum Internal Current Setpoint
Default Internal Current Setpoint for Skip Cycle Operation
Propagation Delay from Current Detection to Gate OFF State
Leading Edge Blanking Duration
3
3
3
3
3
I IB
I Limit
I Lskip
T DEL
T LEB
--
0.9
--
--
--
0.02
1.0
330
90
250
--
1.1
--
150
--
m A
V
mV
ns
ns
INTERNAL OSCILLATOR (V CC = 11 V, Pin 5 Loaded by 1.0 k Ω )
Oscillation Frequency, 65 kHz Version
Oscillation Frequency, 100 kHz Version
Oscillation Frequency, 133 kHz Version
Maximum Duty--Cycle, NCP1217
Maximum Duty--Cycle, NCP1217A
--
--
--
--
--
f OSC
f OSC
f OSC
Dmax
Dmax
58.5
90
120
69
42
65
100
133
74
46.5
71.5
110
146
80
50
kHz
kHz
kHz
%
%
1. Maximum Value @ T J = 0 ? C.
2. Minimum Value @ T J = 125 ? C.
http://onsemi.com
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