isl6721a Intersil Corporation, isl6721a Datasheet - Page 9

• Manufacturer Part Number: isl6721a
• Description: Flexible Single-ended Current Mode Pwm Controller
• Manufacturer: Intersil Corporation

Electrical Specifications
NOTES:
Typical Performance Curves
10. This parameter, although guaranteed by characterization or correlation testing, is not 100% tested in production.
12. This is the maximum duty cycle achievable using the specified values of RT and CT. Larger or smaller maximum duty cycles may be obtained
11. This is the V
Undervoltage Clear Threshold
Undervoltage Hysteresis Voltage
UV Bias Current
OV Bias Current
THERMAL PROTECTION
Thermal Shutdown
Thermal Shutdown Clear
Hysteresis
9. Parameters with MIN and/or MAX limits are 100% tested at 25°C, unless otherwise specified. Temperature limits established by characterization
FIGURE 3. OSCILLATOR FREQUENCY vs TEMPERATURE
FIGURE 1. EA REFERENCE VOLTAGE vs TEMPERATURE
and are not production tested.
using other values for RT and CT. See Equations 1, 2, 3 and 4.
1.002
0.998
0.995
0.993
0.991
1.002
0.996
0.989
0.983
0.976
0.970
1.002
1.000
0.998
0.995
0.993
0.991
CC
1
-40
-40
PARAMETER
current consumed when the device is active but not switching. Does not include gate drive current.
-10
-10
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
9
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic on page 3 and page 4. 9V < V
T
A
= +25°C. Boldface limits apply over the operating temperature range, -40°C to +105°C. (Continued)
50
50
80
80
110
110
V
V
(Note 10)
(Note 10)
(Note 10)
UV
OV
= 2.10 V
= 2.00 V
TEST CONDITIONS
ISL6721A
CC
FIGURE 4. RESISTANCE FOR CT CAPACITOR VALUES GIVEN
FIGURE 2. VREF REFERENCE VOLTAGE vs TEMPERATURE
= V
C
< 20V, RT = 11kΩ, CT = 330 pF. Typical values are at
1.002
0.998
0.995
0.993
0.991
1.002
1.000
0.998
0.995
0.993
0.991
100
10
10
1
-40
3
10 20
(Note 9)
MIN
1.96
-1.0
-1.0
120
105
20
-
-10
30
TEMPERATURE (°C)
40 50 60 70
20
TYP
2.01
RT (kΩ)
130
120
10
50
-
-
50
(Note 9)
80
80 90 100
MAX
2.10
100
140
135
1.0
1.0
-
110
100pF
220pF
330pF
470pF
680pF
1000pF
2000pF
August 23, 2011
UNITS
mV
µA
µA
°C
°C
°C
FN6797.0
V