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TDE1707BFP
INTELLIGENT POWER SWITCH
PRODUCT PREVIEW
0.5A OUTPUT CURRENT 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 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 inBLOCK DIAGRAM
SO8 ORDERING NUMBER: TDE1707BFP
ternal +5V supply can be used to supply external circuits (See also AN495/0692). 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 overtemperature and the output overcurrent, concurr to the generation of such signal. A minimum delay of 25s (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 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 resistive or inductive loads.
September 2003
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This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
TDE1707BFP
PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol VS VSr IO Vreg Vdelay VO Vi Top Tstg Ptot El Parameter Supply Voltage Supply Reverse Voltage Output Current Regulated Voltage Pin Delay Cap. Surce Pin Output Diff. Voltage Input Voltage Operating Temperature Range Storage Temperature Power Dissipation Energy Induct. Load Value 50 50 internally limited 0 to 7 0 to 5 55 -10 to 50 -25 to +85 -55 to 150 internally limited 150 Unit V V A V V V V C C W mJ
THERMAL DATA
Symbol Rth j-amb Description Thermal Resistance Junction-ambient Max. Value 150 Unit C/W
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TDE1707BFP
ELECTRICAL CHARACTERISTICS (VS = 24V; Tj = -25 to +85C, unless otherwise specified)
Symbol Vs 7 Isr 7 Iq 7 Io 8/2 Io 8/2 Vsat 8/2 Vsat 8/2 Isc 8/2 Vcl 8/2 Iolk 8/2 Vith 5 Vihis 5 Ilk 5 Vreg 6 Iscr 6 Ireg 6 Iold 1 Vold 1 Oldlk 1 Idch 3 Vdth 3 Parameter Supply Voltage Supply Reverse Current Quiescent Current Output Current Output Current Output Voltage Drop V8-2 Output Voltage Drop V8-2 Short Circuit Current Internal Voltage Clamp Output Leakage Input Voltage Threshold Input Threshold Hysteresis Input Current Regulated Output Voltage Short Circuit Regulated Ouput Regulator Current Current Surce Sink Led Driver Voltage Drop Led Driver Lead Driver (off) Leak. Del. Cap. Charge Current Delay Voltage Trigger Vi = 5V Ireg < 5mA Vs = 35V Vs = 48V Output ON () Ios = 2mA () Vi < 2V; RL < 1K TJ = 25C TJ = 25C 2 2 3 1.2 4 4 4.5 6 VSR = -48V Ireg = Iled = 0; Vi < 2V; VS = 6 to 48V Vs = 6V to 32V Vs = 32V to 48V Io = 500mA Io = 300mA ICL = 10mA 0 (Pin 2) Vi < 2V; Vo = 0 to Vs (Pin 8) 2 300 2 5 30 5 5.5 50 6 4 4 1.6 10 6 0.7 55 100 1.1 Test Condition Min. 6 Typ. Max. 48 1.5 1.5 500 300 1.6 1.5 1.5 70 300 100 3 Unit V mA mA mA mA V V A V A A V mV A V mA mA mA mA V A A V
APPLICATION INFORMATION (See Application Circuit) The LED driver tells the output status. It can source or sink current (Iold typ = 3mA), according to the output configuration chosen. 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
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.
DYNAMIC CHARACTERISTICS (VS = 24V; RL = 48; TJ = 25C)
ton toff tdon td min Propagation Turn on Time Propagation Turn off Time Delayed Turn on Time / nF Delay Capacitor Minimum Delayed ton Delay Capacitor = 0 Vi = 0 to 5V Vi = 5 to 0V 0.65 15 15 1 25 2 s s ms s
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TDE1707BFP
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)
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TDE1707BFP
mm MIN. A a1 a2 a3 b b1 C c1 D (1) E e e3 F (1) L M S 3.8 0.4 4.8 5.8 1.27 3.81 4.0 1.27 0.6 8 (max.) 0.15 0.016 0.65 0.35 0.19 0.25 0.1 TYP. MAX. 1.75 0.25 1.65 0.85 0.48 0.25 0.5 0.026 0.014 0.007 0.010 0.004 MIN. inch TYP. MAX. 0.069 0.010 0.065 0.033 0.019 0.010 0.020
DIM.
OUTLINE AND MECHANICAL DATA
45 (typ.) 5.0 6.2 0.189 0.228 0.050 0.150 0.157 0.050 0.024 0.197 0.244
SO8
(1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch).
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TDE1707BFP
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners (c) 2003 STMicroelectronics - All rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com
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