ISL6420A 查看數據表（PDF） - Intersil
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ISL6420A Datasheet PDF : 20 Pages
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ISL6420A
Electrical Specifications
PARAMETER
Operating Conditions, Unless Otherwise Noted: VIN = 12V, PVCC shorted with VCC5, TA = 25°C (Continued)
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNITS
Buffered Output Voltage - External Reference
Current Drive Capability
VOLTAGE MARGINING
VREFOUT
VREFIN = 1.25V, IREFOUT = 20mA,
VMSET2/MODE = High,
CREFOUT = 2.2µF
CREFOUT = 2.2µF
1.219 1.238 1.257
V
20
-
-
mA
Voltage Margining Range (Note 7)
-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 7)
-
150
-
°C
Thermal Shutdown Hysteresis (Note 7)
-
20
-
°C
NOTES:
4. 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.
5. This is the VCC current consumed when the device is active but not switching. Does not include gate drive current.
6. 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 the Pin Descriptions sections for more details.)
7. Guaranteed by design. Not production tested.
Typical Performance Curves
0.604
0.602
0.600
0.598
0.596
0.594
-40
-15
10
35
60
85
TEMPERATURE (°C)
FIGURE 1. VREF vs TEMPERATURE
320
310
300
290
280
270
-40
-15
10
35
60
85
TEMPERATURE (°C)
FIGURE 2. VSW vs TEMPERATURE
8
FN9169.1
October 13, 2005
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