TLE4263

TLE4263 SIEMENS | Alldatasheet

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Technical content

Features

l Output voltage tolerance £ – 2 % l Low-drop voltage l Very low standby current consumption l Overtemperature protection l Reverse polarity protection l Short-circuit proof l Settable reset threshold l Watchdog l Wide temperature range l Suitable for use in automotive electronics t New type Type Ordering Code Package TLE 4263 G Q67006-A9095 P-DSO-20-6 (SMD) t TLE 4263 GM Q67006-A9357 P-DSO-14-4 (SMD) Functional Description TLE 4263 G is a 5-V low-drop voltage regulator in a P-DSO-20-6 SMD package. The maximum input voltage is 45 V. The maximum output current is more than 200 mA. The IC is short-circuit proof and incorporates temperature protection that disables the IC at overtemperature. The IC regulates an input voltage VI in the range of 6 V < VI < 45 V to VQrated = 5.0 V. A reset signal is generated for an output voltage of VQ < 4.5 V. This voltage threshold can be decreased to 3.5 V by external connection. The reset delay can be set externally by a capacitor. The integrated watchdog logic controls the connected microcontroller. The IC can be switched off via the inhibit input, which causes the current consumption to drop from 800mA to < 50mA.

Semiconductor Group 2 1998-11-01 Dimensioning Information on External Components The input capacitor C I is necessary for compensating line influences. Using a resistor of approx. 1W in series with C I, the oscillating circuit consisting of input inductivity and input capacitance can be damped. The output capacitor is necessary for the stability of the regulating circuit. Stability is guaranteed at values ‡ 22 mF and an ESR of £ 3 W within the operating temperature range. For small tolerances of the reset delay the spread of the capacitance of the delay capacitor and its temperature coefficient should be noted. Pin Configuration (top view) TLE 4263 G TLE 4263 GM IV AEP02587 QRES GND GND GND GND GND GND DRES WSRES N.C. VQ INH

Semiconductor Group 3 1998-11-01 Pin Definitions and Functions Pin Symbol Function 1, 2, 19, 13 N.C. Not connected 3Q R E S Reset output; open-collector output connected to the output via a resistor of 30 kW . 4-7, 14-17 GND Ground 9 DRES Reset delay; connected to ground with a capacitor.

10 SRES Reset threshold; for setting the switching threshold

connect with a voltage divider from output to ground. If this input is connected to GND, reset is triggered at an output voltage of 4.5 V.

11 W Watchdog; positive edge triggered input for monitoring a

microcontroller.

12 VQ 5-V output voltage; block to ground with a 22-mF

capacitor.

18 VI Input voltage; block to ground directly at the IC with a

ceramic capacitor. 20 INH Inhibit; TTL-compatible, low-active input.

Semiconductor Group 4 1998-11-01 Circuit Description The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. If the externally scaled down output voltage at the reset threshold input drops below 1.35 V, the external reset delay capacitor is discharged by the reset generator. If the voltage on the capacitor reaches the lower threshold VST , a reset signal is issued on the reset output and not cancelled again until the upper threshold VdT is exceeded. If the reset threshold input is connected to GND, reset is triggered at an output voltage of 4.5 V. A connected microcontroller is controlled by the watchdog logic. If pulses are missing, the reset output is set to low. The pulse sequence time can be set within a wide range with the reset delay capacitor. The IC can be switched at the TTL-compatible, low-active inhibit input. The IC also incorporates a number of internal circuits for protection against: l Overload l Overtemperature l Reverse polarity Block Diagram Input 18 AEB01100 GND 4-7, 14-17 Output12 Reset Delay Reset Output Reset Threshold Watchdog Temperature Sensor Generator ResetReference Bandgap Adjustment Buffer Control Amplifier Saturation Control and Protection Circuit Inhibit

Semiconductor Group 5 1998-11-01 Absolute Maximum Ratings Tj = – 40 to 150 °C Parameter Symbol Limit Values Unit Remarks min. max. Input Input voltage Input current VI II –4 2 V internally limited Reset Output Voltage Current VR IR – 0.3 V internally limited Reset Input Reset threshold VRE – 0.3 6 V – Reset Delay Voltage Current Vd Id –0 . 3 V internally limited Output Voltage Current VQ IQ –0 . 3 V internally limited Inhibit Voltage Ve –4 2 4 5 V – Watchdog Voltage VW –0 . 3 6 V – Ground Current IGND –0 . 5 – A –

Semiconductor Group 6 1998-11-01 Temperature Junction temperature Storage temperature Tj Tstg –5 0 150 150 Operating Range Input voltage VI –4 5 V – Junction temperature Tj – 40 150 °C– Thermal resistance junction-ambient junction-case Rth JA Rth JC K/W K/W soldered Absolute Maximum Ratings (cont’d) Tj = – 40 to 150 °C Parameter Symbol Limit Values Unit Remarks min. max.

Semiconductor Group 7 1998-11-01 Characteristics VI = 13.5 V; Tj = 25 °C; Ve > 3.5 V; (unless specified otherwise) Parameter Symbol Limit Values Unit Test Condition min. typ. max. Normal Operation Output voltage VQ 4.90 5.00 5.10 V 5 mA £ IQ £ 150 mA;

6 V £ VI £ 28 V;

– 40 °C £ Tj £ 125 °C Output voltage VQ 4.95 5.00 5.05 V 6 V £ VI £ 32 V; IQ = 100 mA; Tj = 100 °C Output current IQ 200 250 – mA – Current consumption; Iq = Ii – IQ Iq Iq Iq Iq 800 1100 mA mA mA mA Ve = 0 IQ = 0 mA IQ = 150 mA IQ = 150 mA; Vi = 4.5 V Drop voltage VDr – 0.35 0.6 V IQ = 150 mA *) Load regulation DVQ ––2 5 m V IQ = 5 mA to 150 mA Supply-voltage regulation DVQ –1 5 2 5 m V VI = 6 V to 28 V; IQ = 150 mA Ripple rejection SVR –5 4 –d B fr = 100 Hz; Vr = 0.5 Vpp Reset Generator Switching threshold VRT 4.2 4.5 4.8 V VRE = 0 V Switching voltage VRE 1.28 1.35 1.42 V VQ > 3.5 V Reset low voltage VR – 0.10 0.40 V IR = 1 mA Note: The reset output is low within the range VQ = 1 V to VRT *) Drop voltage = Vi – VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.5 V input)

Semiconductor Group 8 1998-11-01 Saturation voltage VC –5 0 1 0 0 m V VQ < VRT Delay switching threshold VdT 1.5 1.7 2.1 V – Switching threshold VST 0 . 2 0 . 3 50 . 5 5V – Charge current Id 40 60 80 mA– Delay time td –2 . 8 –m s C d = 100 nF Delay time tt –2– ms C d = 100 nF Watchdog Discharge current ICd 4.4 6.25 8.2 mA VC = 1.5 V Switching voltage VCd 1.5 1.7 2.1 V – Pulse time TW –2 2 . 5 –m s C d = 100 nF Inhibit Switching voltage Ve ON 3.5 – – V IC turned on Turn-OFF voltage Ve OFF – – 0.8 V IC turned off Input current Ie 51 0 1 5 mA Ve = 5 V Note: The reset output is low within the range VQ = 1 V to VRT Characteristics (cont’d) VI = 13.5 V; Tj = 25 °C; Ve > 3.5 V; (unless specified otherwise) Parameter Symbol Limit Values Unit Test Condition min. typ. max.

Semiconductor Group 9 1998-11-01 Application Circuit Test Circuit TLE 4263G to MC Reset 3 KL 15 6 V ... 45 V Input 470 nF 56 k AES01102 W 22 F 100 nF m 100 kW Output Watchdog from MC TLE 4263G V *) Outside Control Range V SVR = 20 log DrVV = I - DV Q V r Q *) VVI + r eV Ie Id 100 nF C C d I V GND W 9 IR AES01101 5.6 k RV V W Q 470 nF1000 Fm II 12 IQ 22 Fm REV

Semiconductor Group 10 1998-11-01 Time Response, Watchdog with High-Frequency Clock UndervoltagePower-on-Reset VR temperature Over- at Input Voltage Drop d Vcd V Q STV V dT t V RT V I tt Spike Secondary Bounce Load AET01085 t d d tt IV d= dC

Semiconductor Group 11 1998-11-01 TLE 4263 Reset Threshold versus Output Voltage Reset Switching Threshold versus Temperature Switching Voltage V Cd , V dT and V ST versus Temperature Current Consumption of Inhibit versus Temperature 0.8 0.4 0.6 0.2 10 2 1.6 1.2 1.4 1.0 REV V V43 5 V Q AED01098 IV = 13.5 V 0.2 -40 0.6 0.4 0 160 j 80 120 T C 1.0 0.8 1.4 1.2 V 1.6 AED01088 V RE ST 1.2 0-40 0.8 0.4 3.2 2.8 2.4 2.0 V 1.6 V V I T 12080 C j 160 = 13.5 V AED01087 ,dTVV cd V AED01089 eV = 5 V Ie m A -40 0 80 40 120 T j 160 C

Semiconductor Group 12 1998-11-01 TLE 4263 Drop Voltage versus OutputCurrent Current Consumption versus Input Voltage Current Consumption versus Output Current Output Voltage versus Input Voltage 400 200 300 100 500 100 800 600 700 500 DrV mA200150 300 IQ AED01094 mV jT = 125 C 25 C 2001 0 mA qI = 25R L 50V30 40 V I AED01096 W 150 10005 0 mA 300200 mA IQ AED01095 IV = 13.5 V Iq R 40 2 QV V 10V68 V I AED01097 = 25L W

Semiconductor Group 13 1998-11-01 TLE 4263 Charge Current and Discharge Current versus Temperature Pulse Time versus Temperature Output Voltage versus Temperature Input Response 0-40 40 I A C12080 160 T j AED01104 m = 13.5 V = 1.5 V IV V C Id CdI 0-40 40 WT C12080 160 T j AED01106 ms V I = 13.5 V = 100 nFC d V 0-40 4.6 4.7 4.8 5.1 5.2 V 5.0 4.9 T 12080 C j 160 = 13.5 Ve AED01090 V Q -10 -20 -40 3020100 V I AED01092 t Q mV V VD D m s40 C Q = 22 Fm ft m1 s=tr

Semiconductor Group 14 1998-11-01 TLE 4263 Output Current versus Input Voltage Load Response T 100 100 250 300 QI mA 200 150 V 4030 V I = 25 Cj AED01091 = 22 F 200 mV 100 -200 -100 D QV 01 0-10 C Q D QI 150 mA 295 40 sm 5030 t m AED01093

Semiconductor Group 15 1998-11-01 Package Outlines Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package Information”. Dimensions in mmSMD = Surface Mounted Device 11 0 1120 Index Marking 1) Does not include plastic or metal protrusions of 0.15 max per side 2) Does not include dambar protrusion of 0.05 max per side GPS05094 2.65 max 0.1 0.2-0.1 2.45-0.2 +0.150.35 1.27 0.2 24x -0.27.6 1) 0.35 x 45˚ 0.238˚ max +0.09 +0.8 ±0.310.3 0.4 12.8-0.2 P-DSO-20-6 (Plastic Dual Small Outline) Weight approx. 0.6 g

Semiconductor Group 16 1998-11-01 Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package Information”. Dimensions in mmSMD = Surface Mounted Device 1.27 1.45-0.2 8.75-0.2 14 8 1.75 max 0.2 6 ±0.2 0.35 x 45˚ -0.24 0.1 -0.1 0.4+0.8 Index Marking +0.150.35 2) 2) Does not include dambar protrusion of 0.05 max. per side 1) Does not include plastic or metal protrusion of 0.15 max. per side 0.2 14x 0.19 +0.06 8˚ max. GPS05093 P-DSO-14-1 (Plastic Dual Small Outline)