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TDE1707BFPSTN/a3290avaiINTELLIGENT POWER SWITCH


TDE1707BFP ,INTELLIGENT POWER SWITCHELECTRICAL CHARACTERISTICS (VS = 24V; Tj = –25 to +85°C, unless otherwise specified)Symbol Paramet ..
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TDE1707BFP
INTELLIGENT POWER SWITCH
TDE1707BFP
INTELLIGENT POWER SWITCH
PRODUCT PREVIEW

0.5A OUTPUT CURRENT
LOW SIDE OR HIGH SIDE SWITCH CON-
FIGURATION
6V TO 48V SUPPLY VOLTAGE RANGE
OVERLOAD AND SHORT CIRCUIT PROTEC-
TIONS
INTERNAL VOLTAGE CLAMPING
SUPPLY AND OUTPUT REVERSAL PRO-
TECTION
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 TDE1707BFP is a 0.5A 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 AN495/0692). A signal is inter-
nally generated to block the In signal, and prevent
activation of the output switch, as long as an ab-
normal condition is detected. The power-on tran-
sition, as well as the chip overtemperature and
the output overcurrent, concurr to the generation
of such signal. A minimum delay of 25μs (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 dis-
apperance of the block signal; no delay at its on
set) can be further increased connecting a ca-
pacitor between pin3 and ground. It can drive re-
sistive or inductive loads.
BLOCK DIAGRAM
PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
TDE1707BFP

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ELECTRICAL CHARACTERISTICS (VS = 24V; Tj = –25 to +85°C, unless otherwise specified)
DYNAMIC CHARACTERISTICS (VS = 24V; RL = 48Ω; TJ = 25°C)
APPLICATION INFORMATION (See Application

Circuit)
The LED driver tells the output status.
It can source or sink current (Iold typ = 3mA), ac-
cording to the output configuration chosen.
The thresholds, represented by the output com-
parator in the Block Diagram, are set at about
1.5V - 2V.
For instance, in the High Side Load case of the
Application Circuit, when the voltage on pin 8 (the
output) differs from VCC less than 1.5V, the output
is sensed in "OFF" state and the LED driver is
disabled.
If instead pin 8 differs from VCC more than 3V (the
output comparator threshold value plus the drop
voltage on the LED), then the output is sensed
"ON" and the driver will force the current on the
LED.
TDE1707BFP

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APPLICATION CIRCUIT Figure 1: Input Thresholds Voltage vs.
Temperature (VS = 24V)
Figure 2: Saturation Voltage vs. Temperature

(VS = 24V; IO = 500mA)
Figure 3: Quiescent Current) vs.Temperature

(VS = 24V)
TDE1707BFP

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(1) D and F do not include mold flash or protrusions. Mold flash or
potrusions shall not exceed 0.15mm (.006inch).
TDE1707BFP

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