FAN6555 Ver la hoja de datos (PDF) - Fairchild Semiconductor
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FAN6555 Datasheet PDF : 12 Pages
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PRODUCT SPECIFICATION
FAN6555
Absolute Maximum Ratings
Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum
ratings are stress ratings only and functional device operation is not implied.
Parameter
Min.
Max.
Units
PVDD
Voltage on Any Other Pin
Average Switch Current (IAVG)
Junction Temperature
4.5
V
GND – 0.3
VIN + 0.3
V
2.0
A
150
°C
Storage Temperature Range
-65
150
°C
Lead Temperature (Soldering, 10 sec)
300
°C
Thermal Resistance: Junction to Case (θJC)
Junction to Ambient (θJA)
Output Current, Source or Sink (peak)
30
°C/W
88
3.0
A
Operating Conditions
Parameter
Temperature Range
PVDD Operating Range
VCCQ Operating Range
Min.
-40
2.0
1.4
Max.
+85
4.0
4.0
Units
°C
V
V
Electrical Characteristics
Unless otherwise specified, AVCC = VDD = PVDD = 3.3V ±10%, TA = Operating Temperature Range (Note 1)
Symbol
Parameter
Conditions
Min. Typ. Max. Units
Switching Regulator
VTT
Output Voltage, VTT
(See Figure 1)
IOUT = 0,
VREF = open
Note 2
IOUT = ±2A,
VREF = open
TA = 25°C
Note 2
VCCQ = 2.3V 1.12 1.15 1.18 V
VCCQ = 2.5V 1.22 1.25 1.28 V
VCCQ = 2.7V 1.32 1.35 1.38 V
VCCQ = 2.3V 1.09 1.15 1.21 V
VCCQ = 2.5V 1.19 1.25 1.31 V
VCCQ = 2.7V 1.28 1.35 1.42 V
VREFOUT Internal Resistor Divider
ZIN
VREF Reference Pin Input
Impedance
IOUT = 0
Note 2
Note 2
VCCQ = 2.3V 1.139 1.15 1.162 V
VCCQ = 2.5V 1.238 1.25 1.263 V
VCCQ = 2.7V 1.337 1.35 1.364 V
VCCQ = 0
100
kΩ
Switching Frequency
650
kHz
∆VOFFSET Offset Voltage VTT – VREFOUT AVCC = 2.5V No Load VCCQ = 2.5 –20
Supply
20 mV
IQ
Quiescent Current
Buffer
IOUT = 0, no load
VCCQ = 2.5V
IVCCQ
IAVCC
IAVCC SD
IVDD
IVDD SD
IPVDD
6 10 µA
0.5 1.0 mA
0.2 0.5 mA
0.25 1.0 mA
0.2 1.0 mA
100 250 µA
IREF
Output Current Capability
3
mA
Notes
1. Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
2. AVCC, PVDD = 3.3V ±10%
REV. 1.1.3 8/4/03
3
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