FAN1655 Просмотр технического описания (PDF) - Fairchild Semiconductor
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FAN1655 Datasheet PDF : 9 Pages
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Pin Assignments
VDD 1
VDD 2
VTTFORCE 3
VSS 4
VSS 5
VTTFORCE 6
VDD 7
VSS 8
16 NC
15 VDDQ
14 VREFOUT
FAN1655 13 VSSQ
12 SHDN
11 VREFIN
10 VTTSENSE
9 NC
16-Lead Plastic eTSSOP-16
θJC = 4˚C/W*
*Thermal impedance is measured with the power
pad soldered to a 0.5 square inch copper area.
The copper area should be connected to Vss
(ground) and positioned over an internal power
or ground plane to assist in heat dissipation.
VDD 1
VDD 2
VTTFORCE 3
VSS 4
VSS 5
VTTFORCE 6
VDD 7
14 VDDQ
13 VREFOUT
12 VSSQ
FAN1655M 11 SHDN
10 VREFIN
9 VTTSENSE
8 VSS
14-Lead Plastic SOIC
θJC = 37˚C/W, θJA = 88˚C/W
VDD 1
VTTFORCE 2
VTTFORCE 3
VDD 4
8 VDDQ
7 VREFOUT
6 SHDN
5 VTTSENSE
GND
8-Lead MLP Package (5x6mm)
θJC = 4˚C/W, θJA = 34˚C/W
as measured on FAN1655MP Eval Board
Pin Definitions
MLP
1, 4
2, 3
PAD
5
Pin
eTSSOP
1, 2, 7
3, 6
4, 5, 8
10
11
6
12
13
7
14
8
15
9, 16
PAD
PAD
SOIC-14
1, 2, 7
3, 6
4, 5, 8
9
10
11
12
13
14
Pin Name
VDD
VTTFORCE
VSS
VTTSENSE
VREFIN
SHDN
VSSQ
VREFOUT
VDDQ
NC
Pin Function
Input power for the LDO.
The VTT output voltage.
IC Ground.
Feedback for remote sense of the VTT voltage.
Alternative input for direct control of VTTOUT and
VREFOUT.
Shutdown. This active low shutdown turns off both VTT and
VREFOUT. This pin has an internal pull-down, and must be
externally driven high for the IC to be on.
Signal Ground.
Buffered Voltage Reference Output.
VDDQ Input. Attach this pin to the VDDQ supply to generate
VTT and VREFOUT.
No Internal Connection
Connect PAD to Vss Ground Plane
2
FAN1655 Rev. 1.1.5
www.fairchildsemi.com
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