Electrical Characteristics: -40˚C < TA < 85˚C; -40˚C < TJ < 125˚C; 3V < VC < 15V; 4.7V < VCC < 15V; Rt=12K, Ct=390pF
Unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ꢀ Start/Stop Voltages
Start Threshold
Stop Threshold
Hysteresis
4.4
3.2
400
4.6
3.8
850
38
4.7
4.1
1400
75
V
V
mV
µA
Start - Stop
VCC < UVL Start Threshold
I
CC @ Startup
ꢀ Supply Current
CC Operating
I
9.5
12
2
14
18
4
mA
mA
mA
IC Operating
IC Operating
1nF Load on GATE
No switching
ꢀ Reference Voltage
Total Accuracy
0mA < IREF < 2mA
0mA < IREF < 2mA
3.2
3.3
3.4
V
Line Regulation
Load Regulation
6
6
20
15
mV
mV
Noise Voltage
Op Life Shift
Fault Voltage
10Hz < F < 10kHz (Note 1)
T = 1000Hrs. (Note 1)
50
µV
mV
V
4
20
2.8
2.9
2.95
3.05
3.1
3.2
VREF(OK) Voltage
V
V
REF(OK) Hysteresis
30
2
100
40
150
100
mV
mA
Current Limit
ꢀ Error Amp
Reference Voltage
V
FB = COMP
1.234
1.263
1.3
1.285
2
V
VFB Input Current
VFB = 1.2V
µA
Open Loop Gain
(Note 1)
60
1.5
3
dB
Unity Gain Bandwidth
COMP Sink Current
(Note 1)
MHz
mA
COMP = 1.4V, VFB = 1.45V
12
32
COMP Source Current
COMP High Voltage
COMP Low Voltage
COMP = 1.4V, VFB = 1.15V
1
1.6
3.1
125
2.0
3.4
300
mA
V
V
V
FB = 1.15V
FB = 1.45V
2.8
75
mV
PSRR
Freq = 120Hz (Note 1)
60
85
dB
V
SS Clamp, VCOMP
SS = 1.4V, VFB = 0V, ISET = 2V
1.3
1.4
1.5
1.9
COMP Max Clamp
Note 1
1.7
1.8
V
3
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
