ISL8845A Intersil Corporation, ISL8845A Datasheet - Page 8

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

Electrical Specifications
UNDERVOLTAGE LOCKOUT
START Threshold (ISL8840A, ISL8841A)
START Threshold (ISL8843A, ISL8845A)
START Threshold (ISL8842A, ISL8844A)
STOP Threshold (ISL8840A, ISL8841A)
STOP Threshold (ISL8843A, ISL8845A)
STOP Threshold (ISL8842A, ISL8844A)
Hysteresis (ISL8840A, ISL8841A)
Hysteresis (ISL8843A, ISL8845A)
Hysteresis (ISL8842A, ISL8844A)
Startup Current, I
Operating Current, I
Operating Supply Current, I
REFERENCE VOLTAGE
Overall Accuracy
Long Term Stability
Current Limit, Sourcing
Current Limit, Sinking
CURRENT SENSE
Input Bias Current
CS Offset Voltage
COMP to PWM Comparator Offset Voltage
Input Signal, Maximum
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
CS
= ΔV
COMP
DD
PARAMETER
DD
ISL8840A, ISL8841A, ISL8842A, ISL8843A, ISL8844A, ISL8845A
/ΔV
CS
DD
D
8
ISL884xAM
Typical Application schematic. V
are at T
A
= +25°C
- Recommended operating conditions unless otherwise noted. Refer to Block Diagram and
(Note 10)
V
(Note 8)
Includes 1nF GATE loading
Over line (V
temperature
T
V
V
V
0 < V
(Note 9)
(Note 9)
V
V
V
V
V
V
Frequency = 120Hz, V
30V (Note 9)
Initial, T
T
(Note 9)
A
A
DD
CS
CS
CS
FB
FB
COMP
COMP
FB
FB
= +125°C, 1000 hours (Note 9)
= +25°C, (f
= V
= 0V
= 2.3V
= 2.7V
= 1V
= 0V (Note 9)
= 0V (Note 9)
< START Threshold
CS
TEST CONDITIONS
A
COMP
= 1.5V, V
= 1.5V, V
< 910mV, V
= +25°C
DD
DD
30V
= 12V to 30V), load,
= 15V, RT = 10kΩ, CT = 3.3nF, T
FB
FB
- f
FB
10V
= 2.7V
= 2.3V
DD
= 0V
)/f
= 12V to
30V
4.900
2.460
MIN
13.3
0.80
0.97
4.80
-1.0
-1.0
-0.4
6.5
8.0
6.1
7.3
8.0
-20
2.5
1.0
1.0
0.4
95
60
60
48
5
-
-
-
-
-
-
-
-
-
-
A
= -55 to +125°C (Note 7), Typical values
5.000
2.500
TYP
14.3
4.75
1.15
1.00
-0.2
100
7.0
8.4
6.6
7.6
8.8
0.4
0.8
5.4
2.9
3.0
1.5
0.2
90
90
35
80
51
5
-
-
-
-
-
-
-
-
VREF
5.050
2.535
MAX
15.3
1.30
1.03
125
105
7.5
9.0
6.9
8.0
9.6
4.0
5.5
1.0
3.5
1.0
1.0
1.0
60
53
5
-
-
-
-
-
-
-
-
-
-
-
April 18, 2007
UNITS
MHz
kHz
mA
mA
mV
mA
mA
mV
V/V
mA
mA
μA
μA
dB
μA
dB
ns
%
%
FN6320.3
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V