ISL8845A Intersil Corporation, ISL8845A Datasheet - Page 9

• Manufacturer Part Number: ISL8845A
• Description: (ISL8840A - ISL8845A) High Performance Industry Standard Single-Ended Current Mode PWM Controller
• Manufacturer: Intersil Corporation

Electrical Specifications
NOTES:
Typical Performance Curves
10. Adjust V
Amplitude, Peak to Peak
RTCT Discharge Voltage (Valley Voltage)
Discharge Current
OUTPUT
Gate VOH
Gate VOL
Peak Output Current
Rise Time
Fall Time
GATE VOL UVLO Clamp Voltage
PWM
Maximum Duty Cycle
(ISL8840A, ISL8842A, ISL8843A)
Maximum Duty Cycle
(ISL8841A, ISL8844A, ISL8845A)
Minimum Duty Cycle
7. Specifications at -55°C and +125°C are guaranteed by +25°C test with margin limits.
8. This is the V
9. These parameters, although guaranteed, are not 100% tested in production.
1.01
1.00
0.99
0.98
FIGURE 1. FREQUENCY vs TEMPERATURE
-60 -40 -20
DD
above the start threshold and then lower to 15V.
DD
PARAMETER
current consumed when the device is active but not switching. Does not include gate drive current.
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
0
TEMPERATURE (°C)
20
9
ISL884xAM
Typical Application schematic. V
are at T
40
60
A
= +25°C (Continued)
80 100 120 140
- Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
Static Test
Static Test
RTCT = 2.0V
V
OUT - GND, I
C
C
C
V
COMP = VREF
COMP = VREF
COMP = GND
DD
DD
OUT
OUT
OUT
- OUT, I
= 5V, I
= 1nF (Note 9)
= 1nF (Note 9)
= 1nF (Note 9)
TEST CONDITIONS
LOAD
DD
OUT
OUT
= 15V, RT = 10kΩ, CT = 3.3nF, T
= -200mA
= 1mA
= 200mA
FIGURE 2. REFERENCE VOLTAGE vs TEMPERATURE
1.001
1.000
0.999
0.998
0.997
0.996
0.995
-60 -40 -20
MIN
94.0
47.0
6.2
-
-
-
-
-
-
-
-
-
A
= -55 to +125°C (Note 7), Typical values
0
TEMPERATURE (°C)
TYP
1.75
96.0
48.0
20
1.0
8.0
1.0
1.0
1.0
20
20
-
-
40
60
MAX
80 100
8.5
2.0
2.0
1.2
40
40
0
-
-
-
-
-
120
April 18, 2007
UNITS
140
mA
ns
ns
%
%
%
FN6320.3
V
V
V
V
A
V