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NCP1606
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified: For typical values, T
J
 = 25癈. For min/max values, T
J
 = 40癈 to +125癈, V
CC
 = 12 V, FB = 2.4 V, C
DRV
 =
1 nF, Ct = 1 nF, CS = 0 V, Control = open, ZCD = open)
Symbol
Rating
Min
Typ
Max
Unit
V
CC
 UNDERVOLTAGE LOCKOUT SECTION
V
CC(on)
V
CC
 Startup Threshold (Undervoltage Lockout Threshold, Vcc rising)
25癈 < T
J
 < +125癈
40癈 < T
J
 < +125癈
11.0
10.9
12.0
12.0
13.0
13.1
V
V
CC(off)
V
CC
 Disable Voltage after Turn On (Undervoltage Lockout Threshold, V
CC
 falling)
25癈 < T
J
 < +125癈
40癈 < T
J
 < +125癈
8.7
8.5
9.5
9.5
10.3
10.5
V
H
UVLO
Undervoltage Lockout Hysteresis
2.2
2.5
2.8
V
DEVICE CONSUMPTION
I
CC(startup)
Icc consumption during startup: 0 V < V
CC
 < V
CC(on)
  200 mV

20
40
mA
I
CC1
Icc consumption after turn on at V
CC
 = 12 V, No Load, 70 kHz switching

1.4
2.0
mA
I
CC2
Icc consumption after turn on at V
CC
 = 12 V, 1 nF Load, 70 kHz switching

2.1
3
mA
I
CC(fault)
Icc consumption after turn on at V
CC
 = 12 V, 1 nF Load, no switching
(such as during OVP fault, UVP fault, or grounding ZCD)

1.2
1.6
mA
REGULATION BLOCK (ERROR AMPLIFIER)
V
REF
Voltage Reference
@ T
J
 = 25 癈
25癈 < T
J
 < +125癈
40癈 < T
J
 < +125癈
2.475
2.465
2.460
2.50
2.50
2.50
2.525
2.535
2.540
V
V
REF
(line)
Vref Line Regulation from V
CC(on)
 + 200 mV < V
CC
 < 20 V, @ T
J
 = 25癈
2

2
mV
I
EA
Error Amplifier Current Capability:: (Note 3)
Sink (Control = 4 V, V
FB
 = 2.6 V):
Source (Control = 4 V, V
FB
 = 2.4 V):
8.0
20
17
6.0
30
2
mA
G
OL
Open Loop, Error Amplifier Gain (Note 4)

80

dB
BW
Unity Gain Bandwidth (Note 4)

1

MHz
I
FB
FB Bias Current @ V
FB
 = 3 V
500

500
nA
I
Control
Control Pin Bias Current @ FB = 0 V and Control = 4.0 V.
1

1
mA
V
EAH
V
CONTROL
 @ I
EASOURCE
 = 0.5 mA, V
FB
 = 2.4 V
4.9
5.3
5.7
V
V
EAL
V
CONTROL
 @ I
EASINK
 = 0.5 mA, V
FB
 = 2.6 V
1.85
2.1
2.4
V
V
EA
(diff)
V
EA
(diff) = V
EAH
  V
EAL
. Difference between max and min Control voltages
3.0
3.2
3.4
V
CURRENT SENSE BLOCK
V
CS(limit)
Overcurrent Protection Threshold:
NCP1606A
NCP1606B
1.6
0.45
1.7
0.5
1.8
0.55
V
t
LEB
Leading Edge Blanking duration
150
250
350
ns
t
CS
Overcurrent protection propagation delay.
40
100
170
ns
I
CS
CS bias current @ V
CS
 = 2 V
1

1
mA
ZERO CURRENT DETECTION
V
ZCDH
Zero Current Detection Threshold (V
ZCD
 rising)
1.9
2.1
2.3
V
V
ZCDL
Zero Current Detection Threshold (V
ZCD
 falling)
1.45
1.6
1.75
V
V
ZCD(HYS)
V
ZCD
H  V
ZCD
L
300
500
800
mV
I
ZCD
Maximum ZCD bias Current @ V
ZCD
 = 5 V
2

+2
mA
V
CL(POS)
Upper Clamp Voltage @ I
ZCD
 = 2.5 mA
5
5.7
6.5
V
I
CL(POS)
Current Capability of the Positive Clamp at V
ZCD
 = V
CL(POS)
 + 200 mV:
5.0
8.5

mA
3.  Parameter values are valid for transient conditions only.
4.  Parameter characterized and guaranteed by design, but not tested in production.
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