ISL6420A Datasheet, PDF (9/21 Pages) Intersil Corporation – Advanced Single Synchronous Buck Pulse-Width Modulation PWM Controller

ISL6420A
Electrical Specifications Operating Conditions: VIN = 12V, PVCC shorted with VCC5, T_A = +25°C. Boldface limits
apply over the operating temperature range, -40°C to +85°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
(Note 12) TYP (Note 12) UNITS
Current Drive Capability
VOLTAGE MARGINING
C_REFOUT = 2.2µF
20
-
-
mA
Voltage Margining Range
(Note 10)
-10
-
+10
%
CDEL Current for Voltage
Margining
-
100
-
µA
Slew Time
CDEL = 0.1µF, VMSET = 330kΩ
-
2.5
-
ms
ISET1 on FB Pin
VMSET = 330k,
GPIO1 = L
GPIO2 = H
-
7.48
-
µA
ISET2 on FB Pin
VMSET = 330k,
GPIO1 = H
GPIO2 = L
-
7.48
-
µA
THERMAL SHUTDOWN
Shutdown Temperature
(Note 10)
-
150
-
°C
Thermal Shutdown Hysteresis
(Note 10)
-
20
-
°C
NOTES:
7. The operating supply current and shutdown current specifications for 5V input are the same as VIN supply current specifications,
i.e., 5.6V to 28V input conditions. These should also be tested with part configured for 5V input configuration, i.e., VIN = VCC5
= PVCC = 5V.
8. This is the V_CC current consumed when the device is active but not switching. Does not include gate drive current.
9. When the input voltage is 5.6V to 28V at VIN pin, the VCC5 pin provides a 5V output capable of 50mA (max) total from the
internal LDO. When the input voltage is 5V, VCC5 pin will be used as a 5V input, the internal LDO regulator is disabled and the
VIN must be connected to the VCC5. In both cases the PVCC pin should always be connected to VCC5 pin (refer to “Pin
Descriptions” on page 11 for more details).
10. Limits established by characterization and are not production tested.
11. It is recommended to use VCC5 as the pull-up source.
12. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established
by characterization and are not production tested.
9
FN9169.4
December 4, 2009