ISL6844 INTERSIL [Intersil Corporation], ISL6844 Datasheet - Page 5

• Manufacturer Part Number: ISL6844
• Description: Improved Industry Standard Single Ended Current Mode PWM Controller
• Manufacturer: INTERSIL [Intersil Corporation]

Electrical Specifications
NOTES:
Gain, A
CS to OUT Delay
ERROR AMPLIFIER
Open Loop Voltage Gain
Unity Gain Bandwidth
Reference Voltage
FB Input Bias Current
COMP Sink Current
COMP Source Current
COMP VOH
COMP VOL
PSRR
OSCILLATOR
Frequency Accuracy
Frequency Variation with V
Temperature Stability
Amplitude, Peak to Peak
RTCT Discharge Voltage
Discharge Current
OUTPUT
Gate VOH
Gate VOL
Peak Output Current
Rise Time
Fall Time
PWM
Maximum Duty Cycle
Minimum Duty Cycle
3. Specifications at -40
4. This is the V
5. Guaranteed by design, not 100% tested in production.
6. Adjust V
CS
= ∆V
DD
above the start threshold and then lower to 15V.
COMP
DD
PARAMETER
current consumed when the device is active but not switching. Does not include gate drive current.
/∆V
o
C are guaranteed by design, not production tested.
CS
DD
5
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. V
T
A
= 25
o
ISL6842, ISL6843, ISL6844, ISL6845
C (Continued)
DD
= 15V (Note 6), Rt = 10kΩ, Ct = 3.3nF, T
0 < V
(Note 5)
(Note 5)
(Note 5)
(Note 5)
V
V
V
V
V
V
Frequency = 120Hz, V
18V (Note 5)
Initial, T
T = 25
(Note 5)
RTCT = 2.0V
V
OUT - GND, I
C
C
C
ISL6842, ISL6843
ISL6844, ISL6845
ISL6842, ISL6843
ISL6844, ISL6845
FB
FB
COMP
COMP
FB
FB
DD
OUT
OUT
OUT
= V
= 0V
= 2.3V
= 2.7V
- OUT, I
CS
o
= 1nF (Note 5)
= 1nF (Note 5)
= 1nF (Note 5)
TEST CONDITIONS
C (F
J
COMP
= 1.5V, V
= 1.5V, V
< 910mV, V
= 25
18V
OUT
OUT
o
C
- F
FB
FB
= -200mA
= 200mA
12V
FB
= 2.7V
= 2.3V
DD
)/F
= 0V
12V
= 12V to
A
= -40 to 105
2.475
MIN
4.80
-1.0
-0.4
2.5
3.5
1.0
0.4
7.2
60
60
49
94
47
-
-
-
-
-
-
-
-
-
-
-
-
o
C (Note 3), Typical values are at
2.500
TYP
-0.2
3.0
0.2
1.9
0.7
8.4
1.0
1.0
1.0
90
48
25
80
52
20
20
96
5
-
-
-
-
-
-
-
VREF
2.525
MAX
3.5
1.0
1.0
1.0
9.5
2.0
2.0
40
55
40
40
5
0
0
-
-
-
-
-
-
-
-
-
-
UNITS
MHz
kHz
V/V
mA
mA
mA
nS
dB
µA
dB
nS
nS
%
%
%
%
%
%
V
V
V
V
V
V
V
A