NCP1606
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified: For typical values, T
J
= 25°C. For min/max values, T
J
= −40°C to +125°C, 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°C < T
J
< +125°C
−40°C < T
J
< +125°C
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°C < T
J
< +125°C
−40°C < T
J
< +125°C
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 °C
−25°C < T
J
< +125°C
−40°C < T
J
< +125°C
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°C −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.
