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PDF TDE1708DFT Data sheet ( Hoja de datos )
| Número de pieza | TDE1708DFT | |
| Descripción | Intelligent power switch | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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TDE1708DFT
Intelligent power switch
Features
■ Low side or high side switch configuration
■ 6V to 48V supply voltage range
■ Overload and short circuit protections
■ Internal voltage clamping
■ Supply and output reversal protection
■ Thermal shutdown
■ GND and vs open wire protection
■ Adjustable delay at switch on
■ Indicator status led driver
■ +5V regulated aux. voltage
■ High burst immunity
Description
The TDE1708DFT is an Integrated Power Switch
with up to 48V Power supply capability. Two output
configurations are possible:
● Load to Gnd. (High Side Mode)
● Load to VS (Low side Mode)
Especially dedicated to proximity detectors, its in-
ternal +5V supply can be used to supply external
circuits (See also AN495).
DFN (4x4)
A signal is internally generated to block the In
signal, and prevent activation of the output switch,
as long as an abnormal condition is detected. The
power-on transition, as well as the chip over
temperature and the output overcurrent, concur to
the generation of such signal. A minimum delay of
25ms (Typ.value) is added to the trailing edge of
such signal to ensure that a stable normal
situation is present when the signal disappears.
The delay (of the disappearance of the block
signal; no delay at its on set) can be further
increased connecting a capacitor between pin3
and ground. It can drive resistive or inductive
loads.
Order codes
Part number
TDE1708DFT
Temp range, °C
-25°C to +85°C
Package
DFN(4x4)
Packing
Tape and reel
January 2007
Rev 3
1/14
www.st.com
14
1 page  
TDE1708DFT
2 Electrical specifications
2.1
Thermal data
Table 2. Thermal data
Symbol
Description
RthJA Thermal resistance junction-ambient
RthJC Thermal resistance junction-case
1. Soldered to a 4 layer board with 4 vias in the pad.
2.2
Absolute maximum ratings
Table 3. Absolute maximum ratings
Symbol
Parameter
VS
VS
Io
Vreg
Vdelay
Vo
Vi
TJ
Tstg
Ptot
Ei
Supply voltage
Supply reverse voltage
Output current
Regulated voltage pin
Delay cap. source pin
Output diff. voltage
Input voltage
Junction operating temperature
Storage temperature range
Power dissipation
Energy inductive load
Electrical specifications
Max.
Max.
Value
32(1)
1.2
Unit
°C/W
°C/W
Value
50
50
internally limited
0 to 7
0 to 5
55
-10 to 50
Internally limited
-55 to 150
internally limited
100
Unit
V
V
A
V
V
V
V
°C
°C
mW
mJ
5/14
5 Page 
TDE1708DFT
5 Package information
5.1 Foot print recommended
Figure 6. Foot print
Package information
11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet TDE1708DFT.PDF ] | |
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