LT1509 Linear Technology, LT1509 Datasheet - Page 3

• Manufacturer Part Number: LT1509
• Description: Power Factor and PWM Controller
• Manufacturer: Linear Technology

PARAMETER
Current Amplifier (PFC Section)
Current Amp Offset Voltage
I
Current Amp Voltage Gain
Current Amp Unity-Gain Bandwidth
Current Amp Output High
Current Amp Output Low
Current Amp Short-Circuit Current
Input Range, I
Reference
Reference Output Voltage
V
V
V
V
Current Limit
PK
PK
PK
Multiplier
Multiplier Output Current
Multiplier Output Current Offset
Multiplier Maximum Output Current
Multiplier Gain Constant (Note 1)
I
Oscillator
Oscillator Frequency
C
C
Overvoltage Comparator (PFC Section)
Comparator Trip Voltage Ratio (V
Hysteresis
OVP Bias Current
OVP Propagation Delay
Gate Drivers (GTDR1 and GTDR2)
Max Output Voltage
Output High
Output Low (Device Unpowered)
Output Low (Device Active)
Peak Output Current
Rise and Fall Time
Max Duty Cycle (PFC)
Max Duty Cycle (PWM) (Note 2)
ELECTRICAL C
Maximum operating voltage (V
VA
SENSE
AC
REF
REF
REF
REF
SET
SET
LIM
LIM
LIM
OUT
Input Resistance
Load Regulation
Line Regulation
Short-Circuit Current
Worst Case
Ramp Peak-to-Peak Amplitude
Ramp Valley Voltage
Offset Voltage
Input Current
to GTDR Propagation Delay
Bias Current
= 5V, OVP = V
SENSE
, M
OUT
REF
(Linear Operation)
. No load on any outputs unless otherwise noted.
HARA TERISTICS
TRIP
MAX
/ V
REF
) = 25V, V
C
)
CC
CONDITIONS
CA
I
– 5mA < I
11.5V < V
V
Load, Line, Temperature
PK
PK
I
R
I
I
R
R
OVP = 7.5V
0mA Load, 18V < V
– 200mA Load, 11.5V V
V
200mA Load (Sinking)
10mA Load
10nF from GTDR to GND
1nF from GTDR to GND
REF
AC
AC
AC
REF
CC
AC
SET
SET
= 18V, R
OUT
LIM
LIM
= 100 A, R
= 450 A, R
from 50 A to 1mA
= 0V, 50mA Load (Sinking)
= 0mA, T
= 1M from I
= 0V
= 15k, C
= 15k, C
= – 0.1V
Falling from 50mV to – 50mV
= 0V
REF
CC
SET
< V
< 0mA
A
SET
SET
SET
SET
= 25 C
= 15k to GND, C
MAX
AC
= 1000pF
= 1500pF
= 15k
= 15k, VA
to GND
CC
CC
OUT
15V
= 7V, M
SET
= 1nF to GND, I
OUT
= 0V
AC
= 100 A, I
V
CC
– 286
– 0.3
MIN
7.39
– 20
7.32
– 25
4.35
1.15
1.04
7.2
80
12
15
85
58
12
90
44
3
– 3.0
SENSE
– 0.05
0.035
– 260
7.50
1.05
0.35
TYP
– 25
– 50
110
400
100
100
8.5
1.1
7.5
4.7
1.3
0.2
0.9
0.5
0.2
28
35
25
68
15
25
96
3
8
5
5
2
1
= 0V, CA
– 250
– 100
– 235
MAX
– 0.5
7.60
7.68
1.55
1.06
17.5
115
5.0
1.5
1.0
0.4
17
20
50
25
35
78
50
2
1
1
LT1509
4
OUT
= 3.5V,
UNITS
3
MHz
V
kHz
kHz
mV
mA
mV
mV
mA
mV
k
nA
dB
ns
ns
ns
–2
%
%
V
V
V
V
V
A
A
A
A
V
V
V
A
V
V
V
V
V
A