ISL6420A Intersil, ISL6420A Datasheet - Page 6

• Manufacturer Part Number: ISL6420A
• Description: Advanced Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
• Manufacturer: Intersil

www.DataSheet4U.com
Absolute Maximum Ratings
Bias Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+30V
BOOT and Ugate Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +36V
ESD Classification
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.
NOTES:
Electrical Specifications
VIN SUPPLY
Input Voltage Range
VIN SUPPLY CURRENT
Shutdown Current (Note 4)
Operating Current (Notes 4, 5)
VCC5 SUPPLY (Notes 5, 6)
Input Voltage Range
Output Voltage
Maximum Output Current
POWER-ON RESET
Rising V
Falling V
UVLO Threshold Hysteresis
PWM CONVERTERS
Min Output Voltage (Note 7)
Max Output Voltage (Note 7)
Maximum Duty Cycle
Minimum Duty Cycle
FB Pin Bias Current
Undervoltage Protection
Overvoltage Protection
OSCILLATOR
Free Running Frequency
Total Variation
Frequency Range (Set by RT)
Ramp Amplitude (Note 7)
1. All voltages are with respect to GND.
2. θ
3. For θ
Human Body Model (JESD22 - A114) . . . . . . . . . . . . . . . . . 2000V
Charged Device Model (JESD22 - C101) . . . . . . . . . . . . . . 1000V
Tech Brief TB379.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
CC5
JC
CC5
, the “case temp” location is the center of the exposed metal pad on the package underside.
Threshold
Threshold
PARAMETER
6
Operating Conditions, Unless Otherwise Noted: VIN = 12V, PV
(Note 1)
SYMBOL
∆V
V
V
OVP1
UV1
OSC
ENSS = GND
VIN = VCC5 for 5V configuration
VIN = 5.6V to 28V, I
VIN = 12V
VIN connected to VCC5, 5V input
operation
F = 300kHz
F = 300kHz
Fraction of the set point; ~3µs noise filter
Fraction of the set point; ~1µs noise filter
RT = VCC5, T
T
external resistor at RT
VIN = 12V
A
ISL6420A
= -40°C to 85°C, with frequency set by
TEST CONDITIONS
A
Thermal Information
Thermal Resistance (Typical)
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Ambient Temperature Range. . . . . . . . . -40°C to 85°C (for “I” suffix)
Junction Temperature Range. . . . . . . . . . . . . . . . . . . -40°C to 125°C
= -40°C to 85°C
QFN Package (Notes 2, 3). . . . . . . . . .
QSOP Package (Note 2) . . . . . . . . . . .
L
= 3mA to 50mA
CC
shorted with V
4.310
4.090
MIN
0.16
112
270
100
5.6
4.5
4.5
50
90
75
-
-
-
-
-
-
-
-
V
CC5
±10%
4.400
4.100
IN
TYP
1.25
300
1.4
2.0
5.0
5.0
0.6
12
96
80
-
-
-
-
-
-
- 0.5
, T
θ
JA
A
(°C/W)
47
90
= 25°C
4.475
4.250
MAX
1400
120
330
3.0
5.5
5.5
28
85
0
-
-
-
-
-
-
-
-
-
October 13, 2005
θ
JC
UNITS
V
FN9169.1
8.5
NA
(°C/W)
kHz
kHz
mA
mA
mA
nA
%
%
%
%
%
P-P
V
V
V
V
V
V
V
V