On Semiconductor NCL30000 Evaluation Board NCL30000LED1GEVB NCL30000LED1GEVB データシート
製品コード
NCL30000LED1GEVB
NCL30000
http://onsemi.com
5
Table 3. ELECTRICAL CHARACTERISTICS
V
MFP
= 2.4 V, V
Control
= 4 V, Ct = 1 nF, V
CS
= 0 V, V
ZCD
= 0 V, C
DRV
= 1 nF, V
CC
= 12 V, unless otherwise specified
(For typical values, T
J
= 25C. For min/max values, T
J
= −40C to 125C, unless otherwise specified)
Characteristic
Test Conditions
Symbol
Min
Typ
Max
Unit
STARTUP AND SUPPLY CIRCUITS
Startup Voltage Threshold
V
CC
Increasing
V
CC(on)
11
12
12.5
V
Minimum Operating Voltage
V
CC
Decreasing
V
CC(off)
8.8
9.5
10.2
V
Supply Voltage Hysteresis
H
UVLO
2.2
2.5
2.8
V
Startup Current Consumption
0 V < V
CC
< V
CC(on)
− 200 mV
I
cc(startup)
−
24
35
mA
No Load Switching
Current Consumption
C
DRV
= Open, 70 kHz Switching,
V
CS
= 2 V
I
cc1
−
1.4
1.7
mA
Switching Current Consumption
70 kHz Switching, V
CS
= 2 V
I
cc2
−
2.1
2.6
mA
Fault Condition Current Consumption
No Switching, V
MFP
= 0 V
I
cc(fault)
−
0.75
0.95
mA
OVERVOLTAGE AND UNDERVOLTAGE PROTECTION
Overvoltage Detect Threshold
V
MFP
= Increasing
V
OVP
/V
REF
105
106
108
%
Overvoltage Hysteresis
V
OVP(HYS)
20
60
100
mV
Overvoltage Detect Threshold
Propagation Delay
V
MFP
= 2 V to 3 V ramp,
dV/dt = 1 V/ms
V
MFP
= V
OVP
to V
DRV
= 10%
t
OVP
−
500
800
ns
Undervoltage Detect Threshold
V
MFP
= Decreasing
V
UVP
0.25
0.31
0.4
V
Undervoltage Detect Threshold
Propagation Delay
V
MFP
= 1 V to 0 V ramp,
dV/dt = 10 V/ms
V
MFP
= V
UVP
to V
DRV
= 10%
t
UVP
100
200
300
ns
ERROR AMPLIFIER
Voltage Reference
T
J
= 25C
T
J
= −40C to 125C
V
REF
2.475
2.460
2.460
2.500
2.500
2.500
2.525
2.540
2.540
V
Voltage Reference Line Regulation
V
CC(on)
+ 200 mV < V
CC
< 20 V
V
REF(line)
−10
−
10
mV
Error Amplifier Current Capability
V
MFP
= 2.6 V
V
MFP
= 1.08*V
REF
V
MFP
= 0.5 V
I
EA(sink)
I
EA(sink)OVP
I
EA(source)
6
10
−110
10
20
20
−210
20
30
30
−250
mA
Transconductance
V
MFP
= 2.4 V to 2.6 V
T
J
= 25C
T
J
= −40C to 125C
gm
90
70
70
110
110
110
120
135
135
mS
Feedback Pin Internal Pull−Down
Resistor
V
MFP
= V
UVP
to V
REF
R
MFP
2
4.6
10
MW
Feedback Bias Current
V
MFP
= 2.5 V
I
MFP
0.25
0.54
1.25
mA
Control Bias Current
V
MFP
= 0 V
I
Control
−1
−
1
mA
Maximum Control Voltage
I
Control(pullup)
= 10 mA,
V
MFP
= V
REF
V
EAH
5
5.5
6
V
Minimum Control Voltage to Generate
Drive Pulses
V
Control
= Decreasing until
V
DRV
is low, V
Ct
= 0 V
Ct
(offset)
0.37
0.65
0.88
V
Control Voltage Range
V
EAH
– Ct
(offset)
V
EA(DIFF)
4.5
4.9
5.3
V