ISL6721_07 Datasheet, PDF (5/21 Pages) Intersil Corporation – Flexible Single Ended Current Mode PWM Controller

ISL6721
Absolute Maximum Ratings
Supply Voltage, V_CC, V_C . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
GATE . . . . . . . . . . . . . . . . GND - 0.3V to Gate Output Limit Voltage
PGND to LGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.3V
VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 5.3V
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to VREF
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
ESD Classification
Human Body Model (Per JESD22-A114C.01) . . . . . . . . . . .1250V
Charged Device Model (Per JESD22-C101-A) . . . . . . . . . .1000V
Thermal Information
Thermal Resistance (Typical)
θ_JA (°C/W)
16 Ld SOIC (Note 1) . . . . . . . . . . . . . . . . . . . . . . . .
80
16 Ld TSSOP (Note 1) . . . . . . . . . . . . . . . . . . . . . . .
105
Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C
(SOIC, TSSOP - Lead Tips Only)
Operating Conditions
Temperature Range
ISL6721Ax . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +105°C
Supply Voltage Range (Typical, Note 2) . . . . . . . . 9VDC to 18VDC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
+150°C max junction temperature is intended for short periods of time to prevent shortening the lifetime. Operation close to +150°C junction may trigger the shutdown of
the device even before +150°C.
NOTES:
1. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. All voltages are with respect to GND.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematicon page 2 and page 3. 9V < V_CC = V_C < 20V, R_T = 11kΩ, Ct = 330 pF, T_A = -40 to +105°C (Note 3),
Typical values are at T_A = +25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT
START Threshold
7.95
8.25
8.55
V
STOP Threshold
7.40
7.70
8.20
V
Hysteresis
0.50
0.55
1.00
V
Start-Up Current, I_CC
OC/OV Fault Operating Current, I_CC
Operating Current, I_CC
Operating Supply Current, I_C
REFERENCE VOLTAGE
Vcc < START Threshold
Includes 1nF GATE loading
-
100
175
μA
-
200
300
μA
-
4.5
10.0
mA
-
8.0
12.0
mA
Overall Accuracy
Line, load, 0 to +105°C
Line, load, -40 to +105°C
4.95
5.00
5.05
V
4.90
5.00
5.05
Long Term Stability
Fault Voltage
T_A = +125°C, 1000 hours (Note 5)
-
5
-
mV
4.50
4.65
4.75
V
VREF Good Voltage
4.65
4.80
4.95
V
Hysteresis
75
165
250
mV
Operational Current
-10
-
-
mA
Current Limit
-20
-
-
mA
CURRENT SENSE
Input Impedance
-
5
-
kΩ
Offset Voltage
0.08
0.10
0.11
V
Input Voltage Range
0
-
1.5
V
Blanking Time
(Note 5)
30
60
100
ns
5
FN9110.4
April 13, 2007