ILE4270G INTEGRAL | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

IC OF 5 V/550MA POWER VOLTAGE REGULATOR WITH LOW RESIDUAL VOLTAGE (ANALOG OF TLE4270G BY SIEMENS) ILE4270G (analog TLE4270G by Siemens) – an integrated circuit of 5V/550 mA power voltage regulator with low residual voltage, implemented in 5-pin plastic package of P-ТО263-5-1 type in accordance with Siemens specification. IC of 5V/550 mA power voltage regulator is purposed for producing 5V constant voltage with 2% accuracy with residual voltage less than 0.7V at load current 550 mA and input voltage up to 26V. It is suitable for use in power supply in electronic equipment including automotive electronics. Maximum input voltage is 42V. IC has a protection against overvoltage of positive and negative polarity, internal limitation of max load current with temperature reset of output voltage. It has a reset function. Features:

  • High precision of output voltage 5V ± 2%
  • Low residual voltage
  • Imbedded overtemperature protection
  • Reverse polarity protection
  • Very low consumption current
  • Input voltage up to 42V
  • Overvoltage protection up to 65V (≤400mc)
  • Short-circuit proof
  • Suitable for use in automotive electronics
  • Junction temperature range from minus 40 to +125°С
  • Adjustable reset time

Вход Ground Control amplifier Buffer

Pin № Symbol

Description

I Input Input RO Reset Output Reset oscillator output GND Ground Common D Reset delay Output of reset signal delay Q 5-V Output Output TYPICAL ELECTRICAL CHARACTERISTICS (UI =13.5V, -40 oC ≤ TJ ≤ 125 oC, unless otherwise specified) Parameter, unit Symbol Test conditions Typical value Switching delay time, mc td Cd = 100 nF Low reset voltage, mV UROL Rintern = 30 kOhm 1.0 V ≤ UQ ≤ 4.5 V Pulsation smoothing rate, dB PSRR fr = 100 Hz, Ur = 0.5 USS Notes: Testing of electrical characteristics is carried out in compliance with connection circuit given in Annex А ABSOLUTE MAXIMUM RATINGS Limit ratings Maximum ratings Parameter Unit min max min max Die temperature, ТJ -40 125 150 Storage temperature, Тstg -50 150 Input voltage, UI В UQ + 0.7 -42 Input voltage, UI В 65** Input current, II А Internally limited Internally limited Output voltage, UQ, В 4.9 5.1 -1.0 Output current, IQ А Internally limited Internally limited Current on output "Ground", IM мА -0.5 Voltage on output Reset Output, UR В -0.3 Current on output Reset Output, IR A Internally limited Internally limited Reset Delay, UD В -0.3 Voltage of reset delay output Reset Delay, UD В -0.3 Current of reset delay output Reset Delay, ID A Internally limited Internally limited Thermal resistance junction-ambient, Rth ja °С/Вт 70* 70* Thermal resistance junction-case, Rthjc (P- °С/Вт

Note – Absolute maximum power Ptot,W, dissipated by IC at the ambient temperature TA, is to be determined as Ptot = (125 - TA) / Rth ja , (1) where 125 – junction absolute maximum operating temperature, °С * Rth ja - thermal resistance “junction – ambient” (for IC without additional external heat sink), °С /W. Rating of this parameter in analog IC makes Rth ja = 70 °С /W (according to the data by “Siemens”). For IC with additional external heat sink Rth ja = Rth jc + Rth ca , (2) where Rth jc – IC thermal resistance “junction-case”, °С /W. Rating of this parameter in analog IC makes Rth jc = 3 °С /W (according to the data by “Siemens”). Thermal Rth jc and Rth ja of the IC is determined in the course of experimental development. Thermal resistance “case-ambient” Rth ca of the designed IC is determined by the design of heat sink and specified by IC consumer. Used heat sink, switching mode (consumed power) and ambient temperature have to ensure junction temperature nor more than TJ ≤ +125 °С. ** Effect time t ≤ 400 mc ELECTRICAL PARAMETERS Table 1 – Electrical parameters (UI=13.5V, -40 oC ≤ TJ ≤ 125 oC , unless otherwise specified) Target Parameter, unit Symbol Test conditions min max 5 mA ≤ IQ ≤ 550 mA

6 V ≤ UI ≤ 26 V

4.9 5.1 Output voltage, V UQ IQ ≤ 300 mA

26 V ≤ UI ≤ 36 V

4.9 5.1 Maximum output current, mA IQ max UQ = 0 V 650 Consumption current, mA Iq = II - IQ Iq IQ = 5 mA 1.5 IQ = 550 mA IQ = 550 mA; UI = 5 V Residual voltage, mV Udr IQ = 550 mA 700 Output voltage versus load current, mV ∆UQ(I) 5mA ≤ IQ ≤ 550mA UI = 6 V Output voltage versus input voltage, mV ∆UQ(U) 6V≤ UI ≤ 26V IQ=5mA Reset oscillator parameters Switching threshold voltage, V URT 4.5 4.8 High reset voltage, V UROH 4.5 Low reset voltage, mV UROL IR = 3 mA UQ = 4.4 В 400 Circuit resistance, kOhm R Connection directly to Q Switching threshold of “Reset” output into low level, V UDRL UQ < URT 0.2 0.8 Switching threshold of “Reset” output into high level, V UDU 1.4 2.3 Charge current, mkA Id UD = 1.0 V “Reset” output actuation time, mks tRR CD = 100 nF Overvoltage protection Switching voltage, V UI, OV Notes 1 Measurement of electrical parameters is carried out with connection of input capacitors CI = 1000 mkF, С2 = 470 nF and output capacitor CQ = 22 mkF. 2 Parameters specified in Table 1 are guaranteed for the constant junction temperature Tj. Measurement of parameters should be conducted by means of pulse technique.

IC ILE4270G APPLICATION BLOCK DIAGRAM ILE 4270G 22mkF 1000 mkF II 470nF UI CD UD ID IGND IQ UR IR UQ Вход II 470 нФ 100 нФ 22 мкФ Сброс Выход 5 В ILE 4270G IC CONNECTION CIRCUIT WHEN TESTING ELECTRICAL PARAMETERS

TIMING DIAGRAM OF IC LE4270G FUNCTION