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FAN5235 Datasheet(PDF) 3 Page - Fairchild Semiconductor

No. de pieza FAN5235
Descripción Electrónicos  System Electronics Regulator for Mobile PCs
Download  15 Pages
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5235 Datasheet(HTML) 3 Page - Fairchild Semiconductor

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FAN5235
REV. 1.3.3 1/3/02
3
Absolute Maximum Ratings1
Note:
1. Stresses beyond "Absolute Maximum Ratings" may cause permanent device damage. Continuous exposure to absolute
maximum rating conditions may affect device reliability. Functional operation of the device at these or any other conditions
beyond those indicated in the operational sections of the specification is not implied.
Recommended Operating Conditions
Thermal Information
ISEN5
21
Current Sense for 5V. This pin should be connected to the drain of the bottom
Mosfet using appropriate resistor and RC filter. See Application Section.
SW5
22
High Side Driver Source and Low Side Driver Drain Switching Node.
Switching node for 5V.
HSD5
23
High side FET driver for 5V. Connect this pin directly to the gate of an N-channel
MOSFET. The trace from this pin to the MOSFET gate should be < 1".
CPUMP5
24
Charge Pump 5V. High side Gate drive voltage for 5V. High side Gate drive
voltage for 5V. This pin is to be connected to SW5 through a 100nF cap. and to
5V-ALWAYS through a diode.
Parameter
Conditions
Min.
Typ.
Max.
Units
VIN
-0.3
27
V
SW, ISEN Pins,SDWN Pin
-0.3
27
V
CPUMP, HSD Pins
-0.3
33
V
SDN, VFB, V_always pins
-0.3
6.5
V
CPUMP to SW pins, and all other pins
-0.3
6.5
V
The sum of the load currents on pins 2 and 6 must not exceed 60mA total
Input Voltage, VIN
+5.4V to 24V
Ambient Temperature, TA
-20°C to 85°C
Thermal Resistance,
θ
JA
88°C/W
Thermal Resistance,
θ
JC
QSOP
28.5°C/W
TSSOP
16°C/W
Maximum Junction Temperature
150°C
Storage Temperature Range
-65°C to 150°C
Maximum Lead Temperature, Soldering 10 Sec
300°C
Pin Description (Continued)
Pin Name
Pin Number Pin Function Description


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