TLE4267 Datasheet | Siemens Semiconductor Group

Features q q q q q q q q q q q q q q Output voltage tolerance ≤ ± 2 % Low-drop voltage Very low standby current consumption Input voltage up to 40 V Overvoltage protection up to 60 V (≤ 400 ms) Reset function down to 1 V output voltage ESD protection up to 2000 V Adjustable reset time On/off logic Overtemperature protection Reverse polarity protection Short-circuit proof Wide temperature range Suitable for use in automotive electronics Ordering Code Package Q67000-A9153 P-TO220-7-3 P-TO220-7-180 (SMD) P-TO220-7-230 P-TO220-7-3 P-TO220-7-180 Type TLE 4267 TLE 4267 G Q67006-A9169 TLE 4267 S Q67000-A9246 Functional Description P-TO220-7-230 TLE 4267 is a 5-V low-drop voltage regulator in a TO220-7 package. It supplies an output current of > 400 m A. The IC is shortcircuit-proof and incorporates temperature protection that disables the IC at overtemperature. Application The IC regulates an input voltage VI in the range 5.5 V < VI < 40 V to VQrated = 5.0 V. A reset signal is generated for an output voltage VQ of < 4.5 V. The reset delay can be set with an external capacitor. The device has two logic inputs. It is turned-ON by a voltage of > 4 V on E2 by the ignition for example. It remains active as a function of the voltage on E6, even if the voltage on E2 goes Low. This makes it possible to implement a selfholding circuit without external ponents. When the device is turned-OFF, the output voltage drops to 0 V and current consumption tends towards 0 µA. Semiconductor Group 1 1998-11-01 TLE 4267 Design Notes for External ponents The input capacitor CI is necessary for pensation line influences. The resonant circuit consisting of lead inductance and input capacitance can be damped by a resistor of approx. 1 Ω in series with CI. The output capacitor is necessary for the stability of the regulating circuit. Stability is guaranteed at values of ≥ 22 µF and an ESR of ≤ 3 Ω within the operating temperature range. Circuit Description The control amplifier pares a...