NCP1605, NCP1605A, NCP1605B
http://onsemi.com
4
TYPICAL ELECTRICAL CHARACTERISTICS
(Conditions: V
CC
= 16 V, V
HV
= 50 V, V
Pin2
= 2 V, V
Pin13
= 0 V, T
J
from 0癈 to +125癈, unless otherwise specified) (Note 2)
Symbol
Unit
Max
Typ
Min
Rating
C
INT
Average Pin 7 Internal Capacitance (V
Pin7
varying from 0 and 1 V)
Guaranteed by design
15
25
pF
V
INIT
Maximum Pin 7 Voltage Allowing the Setting of the PWM Latch
50
90
mV
I
RAMP_SINK
Pin 7 Sink Current (Drive low) @ V
Pin7
= 1 V
10
mA
Current Sense Block
Off100
Current Sense Pin Voltage,
NCP1605/A
100 mA being drawn from Pin 5
NCP1605B
20
5.0
6.0
6.0
20
15
mV
Off10
Current Sense Pin Voltage, 10 mA being drawn from Pin 5
3.0
8.0
13
mV
I
MAX
Overcurrent Protection Threshold
230
250
265
mA
T
OCP
(Ipin5 > 250 mA) to (DRV low) Propagation Delay (Note 5)
100
200
ns
K
CS10
Ratio (I
Pin6
/I
Pin5
) @ I
Pin5
= 10 mA
99
108
117
%
K
CS200
Ratio (I
Pin6
/I
Pin5
) @ I
Pin5
= 200 mA
98
101
103
%
V
ZCD
Pin 6 Comparator Threshold
50
100
200
mV
T
ZCD
Delay from (V
Pin6
< V
ZCD
) to (DRV high)
120
240
ns
Standby Input
V
STBY
Standby Mode Threshold (V
Pin1
falling)
280
310
340
mV
H
STBY
Hysteresis for Standby Mode Detection
25
30
50
mV
V
SKIP
OUT
/
V
OUT
L
Ratio (Pin 4 Voltage to terminate a SKIP period) over the
(V
OUT
Low Detect Threshold) (Note 6)
99
100
101
%
Oscillator / Synchronization Block
I
charge
Oscillator Charge Current
90
100
110
mA
I
disch
Oscillator Discharge Current
90
100
110
mA
V
sync_H
Comparator Upper Threshold
3.0
V
V
sync_L
Comparator Lower Threshold
2.0
V
Swing
Comparator Swing (V
sync_H
V
sync_L
)
0.9
1.0
1.1
V
T
sync_min
Minimum Synchronization Pulse Width for Detection
500
ns
pfcOK / REF5V
V
pfcOK
L
Pin 12 Voltage @ V
Pin13
= 5 V, 250 mA being sunk by Pin 12
60
120
mV
V
pfcOK
H
(Pin 12 Voltage @ V
Pin13
= 0 V and
NCP1605/A
V
Pin3
= 5 V, with a 250 mA sourced by Pin 12)
NCP1605B
(Pin 12 Voltage @ V
Pin13
= 0 V and
NCP1605/A
V
Pin3
= 5 V, with a 5 mA sourced by Pin 12)
NCP1605B
4.7
4.75
4.5
4.5
5.0
5.0
5.0
4.72
5.3
5.3
5.3
5.0
V
Icap_ref
Current Capability
5 .0
10
mA
BrownOut Detection Block
V
BOH
BrownOut Comparator Threshold (V
Pin2
rising)
NCP1605/A
NCP1605B
0.9
0.93
1.0
1.0
1.1
1.07
V
V
BOL
BrownOut Comparator Threshold (V
Pin2
falling)
NCP1605/A
NCP1605B
0.45
0.465
0.50
0.50
0.55
0.535
V
IB
BO
Pin 2 Bias Current @ V
Pin2
= 0.5 V and 1 V
500
500
nA
Thermal Shutdown
T
LIMIT
Thermal Shutdown Threshold
155
癈
H
TEMP
Thermal Shutdown Hysteresis
15
癈
5. Not tested; guaranteed by characterization
6. Not tested; guaranteed by design
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