NCP1230
www.onsemi.com
5
ELECTRICAL CHARACTERISTICS (For typical values T
J
= 25°C, for min/max values T
J
= −40°C to +125°C, Max T
J
= 150°C,
V
CC
= 13 V, V
PIN8
= 30 V unless otherwise noted.)
Characteristic
Symbol Pin Min Typ Max Unit
Supply Section (All frequency versions, otherwise noted)
Turn−On Threshold Level, V
CC
Going Up (V
fb
= 2.0 V) V
CCOFF
6 11.6 12.6 13.6 V
Minimum Operating Voltage after Turn−On V
CC(min)
6 7.0 7.7 8.4 V
V
CC
Decreasing Level at which the Latch−Off Phase Ends (V
fb
= 3.5 V) V
CClatch
6 5.0 5.6 6.2 V
V
CC
Level at which the Internal Logic gets Reset V
CCreset
6 − 4.0 − V
Internal IC Consumption, No Output Load on Pin 6 (V
fb
= 2.5 V) I
CC1
6 0.6 1.1 1.8 mA
Internal IC Consumption, 1.0 nF Output Load on Pin 6, F
SW
= 65 kHz
(V
fb
= 2.5 V)
I
CC2
6 1.3 1.8 2.5 mA
Internal IC Consumption, 1.0 nF Output Load on Pin 6, F
SW
= 100 kHz I
CC2
6 1.3 2.2 3.0 mA
Internal IC Consumption, 1.0 nF Output Load on Pin 6, F
SW
= 133 kHz I
CC2
6 1.3 2.8 3.3 mA
Internal IC Consumption, Latch−Off Phase I
CC3
6 400 680 1000
A
Internal Startup Current Source
High−Voltage Current Source, 1.0 nF Load
(V
CCOFF
−0.2 V, V
fb
= 2.5 V, V
PIN8
= 30 V)
I
C1
8 1.8 3.2 4.2 mA
High−Voltage Current Source (V
CC
= 0 V) I
C2
8 1.8 4.4 5.6 mA
Minimum Startup Voltage (I
c
= 0.5 mA, V
CCOFF
−0.2 V, V
fb
= 2.5 V) V
HVmin
8 − 20 23 V
Startup Leakage (V
PIN8
= 500 V) I
HVLeak
8 10 30 80
A
Drive Output
Output Voltage Rise−Time @ C
L
= 1.0 nF, 10−90% of Output Signal T
r
5 − 40 − ns
Output Voltage Fall−Time @ C
L
= 1.0 nF, 10−90% of Output Signal T
f
5 − 15 − ns
Source Resistance, R
Load
300 (V
fb
= 2.5 V)
R
OH
5 6.0 12.3 25
Sink Resistance, at 1.0 V on Pin 5 (V
fb
= 3.5 V) R
OL
5 3.0 7.5 18
Pin 1 Output Impedance (or R
dson
between Pin 1 and Pin 6 when SW1
is closed) R
load
on Pin 1 = 680
RPFC 1 6.0 11.7 23
Current Comparator and Thermal Shutdown
Input Bias Current @ 1.0 V Input Level on Pin 3
I
IB
3 − 0.02 −
A
Maximum Internal Current Setpoint Tj = 25°C
Tj = −40°C to +125°C
I
Limit
3 1.010
0.979
1.063
−
1.116
1.127
V
Default Internal Setpoint for Skip Cycle Operation and Standby
Detection
V
skip
3 600 750 900 mV
Default Internal Setpoint to Leave Standby V
stby−out
− 1.0 1.25 1.5 V
Propagation Delay from CS Detected to Gate Turned Off (V
Gate
= 10 V)
(Pin 5 Loaded by 1.0 nF)
T
DEL
CS
3 − 90 180 ns
Leading Edge Blanking Duration T
LEB
3 100 200 350 ns
Soft−Start Period (Note 3) SS − − 2.5 − ms
Temperature Shutdown, Maximum Value (Note 3) T
SD
− 150 165 − °C
Hysteresis while in Temperature Shutdown (Note 3) T
SD
hyste − − 25 − °C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. Verified by Design.
