Page 1
0.5A OUTPUTCURRENT
LOW SIDE OR HIGH SIDE SWITCH CON-
FIGURATION
6V TO 48V SUPPLYVOLTAGERANGE
OVERLOADAND SHORT CIRCUIT PROTEC-
TIONS
INTERNAL VOLTAGECLAMPING
SUPPLY AND OUTPUT REVERSAL PRO-
TECTION
THERMAL SHUTDOWN
GND AND V
ADJUSTABLEDELAY AT SWITCH ON
INDICATOR STATUSLED DRIVER
+5VREGULATED AUX. VOLTAGE
DESCRIPTION
The TDE1707 is a 0.5A IntegratedPower Switch
with up to 48V Power supply capability.
Two output configurationsare possible:
- Load to Gnd. (HighSide Mode)
- Load to V
Especiallydedicated to proximitydetectors,its in-
BLOCK DIAGRAM
OPENWIRE PROTECTION
S
(Low side Mode)
S
TDE1707
INTELLIGENT POWER SWITCH
ADVANCE DATA
SO8
ORDERING NUMBER: TDE1707FP
ternal +5V supply can be used to supply external
circuits (See also AN495/0692). A signal is internallygeneratedto 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 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 situationis present
when thesignal disappears. The delay(of the disapperance of the block signal; no delay at its on
set) can be further increased connecting a capacitor between pin3 and ground. It can drive resistiveor inductiveloads.
July 1992
This isadvanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1/6
Page 2
TDE1707
PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Supply Voltage 50 V
S
Supply Reverse Voltage 50 V
Sr
Output Current internally limited A
O
Regulated Voltage Pin 0 to 7 V
reg
Delay Cap. Surce Pin 0 to 5 V
Output Diff. Voltage 55 V
O
Input Voltage -10 to 50 V
i
Operating Temperature Range -25 to +85 °C
op
Storage Temperature -55 to 150 °C
stg
Power Dissipation internally limited W
tot
Energy Induct. Load 150 mJ
l
V
V
V
I
V
delay
V
V
T
T
P
E
THERMAL DATA
Symbol Description Value Unit
R
th j-amb
Thermal Resistance Junction-ambient Max. 150 °C/W
2/6
Page 3
TDE1707
ELECTRICALCHARACTERISTICS (VS= 24V; Tj=–25 to +85°C,unless otherwisespecified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
7 Supply Voltage 6 48 V
V
s
7 Supply Reverse Current VSR= –48V 1.5 mA
I
sr
7 Quiescent Current I
I
q
reg=Iled
V
8/2 Output Current Vs= 6V to 32V 500 mA
I
o
8/2 Output Current Vs = 32V to 48V 300 mA
I
o
8/2 Output Voltage Drop V
V
sat
8/2 Output Voltage Drop V8-2 Io = 300mA 1.5 V
V
sat
8/2 Short Circuit Current 0.5 0.8 2 A
I
sc
8/2 Internal Voltage Clamp ICL= 10mA 55 65 V
V
cl
8/2 Output Leakage 0 (Pin 2)
I
olk
8-2
Io= 500mA 1.1 1.6 V
V
5 Input Voltage Threshold 2 3 V
V
ith
5 Input Threshold Hysteresis 300 mV
V
ihis
5 Input Current Vi=5V 2 5 µA
I
lk
6 Regulated Output Voltage I
V
reg
6 Short Circuit Regulated 6 30 50 mA
I
scr
6 Ouput Regulator Current Vs= 35V
I
reg
reg
V
1 Current Surce Sink Led Driver Output ON (±)234mA
I
old
1 Voltage Drop Led Driver Ios= 2mA (±) 1.2 1.6 V
V
old
Oldlk 1 Lead Driver (off) Leak. V
3 Del. Cap. Charge Current TJ=25°C246µA
I
dch
3 Delay Voltage Trigger TJ=25°C4V
V
dth
= 6 to 48V
S
=0;Vi< 2V;
1.5 mA
100 300
< 2V; Vo= 0 to Vs(Pin 8)
i
100
< 5mA 4.5 5 5.5 V
6
= 48V
s
< 2V; RL<1KΩ 10 µA
i
4
µA
µA
mA
mA
APPLICATION INFORMATION (See Application
Circuit)
The LED driver tells the output status.
It can source or sink current (I
old typ
= 3mA), accordingto the output configurationchosen.
The thresholds, represented by the output comparator in the Block Diagram, are set at about
1.5V - 2V.
For instance, in the High Side Load case of the
ApplicationCircuit, when the voltage on pin 8 (the
output)differs from V
is sensed in ”OFF” state and the LED driver is
disabled.
If insteadpin 8 differs from V
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.
DYNAMICCHARACTERISTICS (VS= 24V; RL=48Ω;TJ=25°C)
t
t
t
don
t
d min
on
off
Propagation Turn on Time Vi= 0 to 5V 15 µs
Propagation Turn off Time Vi= 5 to 0V 15 µs
Delayed Turn on Time / nF
Delay Capacitor
Minimum Delayed t
on
Delay Capacitor = 0
less than 1.5V, the output
CC
more than 3V (the
CC
0.65 1 2 ms
25 µs
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Page 4
TDE1707
APPLICATIONCIRCUIT
Figure1: Input ThresholdsVoltage vs.
Temperature(V
=24V)
S
Figure2: SaturationVoltage vs. Temperature
=24V; IO= 500mA)
(V
S
Figure3: QuiescentCurrent) vs.Temperature
= 24V)
(V
S
4/6
Page 5
SO8 PACKAGE MECHANICAL DATA
TDE1707
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
a3 0.65 0.85 0.026 0.033
b 0.35 0.48 0.014 0.019
b1 0.19 0.25 0.007 0.010
C 0.25 0.5 0.010 0.020
c1 45° (typ.)
D 4.8 5.0 0.189 0.197
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 3.81 0.150
F 3.8 4.0 0.15 0.157
L 0.4 1.27 0.016 0.050
M 0.6 0.024
S8°(max.)
mm inch
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Page 6
TDE1707
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement ofpatents or other rights of third parties which may resultfrom its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.
1994 SGS-THOMSON Microelectronics - All Rights Reserved
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