ISL6740 INTERSIL [Intersil Corporation], ISL6740 Datasheet - Page 8

• Manufacturer Part Number: ISL6740
• Description: Flexible Double Ended Voltage and Current Mode PWM Controllers
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
PULSE WIDTH MODULATOR
V
Minimum Duty Cycle
Maximum Duty Cycle
V
(ISL6741)
V
V
C
SS to PWM Comparator Input Gain (ISL6740)
SS to PWM Comparator Input Gain (ISL6741)
OSCILLATOR
Frequency Accuracy
Frequency Variation with V
Temperature Stability
Charge Current Gain
Discharge Current Gain
C
C
RTD, RTC Voltage
SYNCHRONIZATION
Input High Threshold (VIH), Minimum
Input Low Threshold (VIL), Maximum
Input Impedance
Input Frequency Range
High Level Output Voltage (VOH)
Low Level Output Voltage (VOL)
SYNC Output Current
SYNC Output Pulse Duration (minimum)
SYNC Advance
SOFTSTART
Charging Current
SS Clamp Voltage
Sustained Over Current Threshold Voltage
(ISL6740)
ERROR
ERROR
ERROR
ERROR
T
T
T
to PWM Comparator Input Gain (ISL6740)
Valley Voltage
Peak Voltage
Input Impedance
to PWM Comparator Input Offset
to PWM Comparator Input Gain (ISL6741) (Note 4)
to PWM Comparator Input Gain (ISL6740) (Note 4)
PARAMETER
DD
8
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. 9V < V
values are at T
A
= +25°C (Continued)
V
V
V
(Note 4)
(Note 4)
(Note 4)
(Note 4)
T
T = +105°C (f
T = -40°C (f
(Note 4)
R
(Note 4)
I
I
VOH > 2.0V (Note 4)
(Notes 4, 5)
SYNC rising edge to GATE falling edge,
C
(Note 4)
SS = 2V
Charged Threshold minus:
DD
LOAD
LOAD
A
ERROR
ERROR
ERROR
LOAD
GATE
= +25°C
< 20 V, R
ISL6740, 1SL6741
= -1mA
= 10μA
= 0
= C
< CS Offset (ISL6741)
< C
> 4.75V (Note 6)
SYNC
20V
TEST CONDITIONS
T
TD
20V
Valley Voltage (ISL6740)
- - f
= 51.1kΩ, R
- - f
= 100pF
9V
9V
)/f
)/f
9V
9V
TC
= 10kΩ, C
T
= 470pF, T
Running
Free
MIN
1.88
0.75
2.70
0.6x
4.35
0.20
250
400
333
4.0
-10
-45
0.4
45
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A
= -40°C to +105°C (Note 3), Typical
2.000
TYP
0.25
0.80
2.80
0.25
351
-55
1.0
0.4
0.4
0.5
0.2
2.0
4.5
4.5
4.5
83
55
2
2
8
5
-
-
-
-
-
-
-
-
-
Free Running
MAX
1.25
2.12
0.85
2.90
4.65
0.30
369
100
400
0.8
-75
65
0
0
3
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
July 13, 2007
UNITS
μA/μA
μA/μA
FN9111.4
kHz
V/V
V/V
V/V
V/V
mV
mA
kΩ
kΩ
Hz
μA
ns
ns
%
%
%
%
%
%
V
V
V
V
V
V
V
V
V