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TLE4258

Features: · Low-drop voltage· Low quiescent current· Reset output· Protection against reverse polarity· Overvoltage protection 70 V· Short-circuit proof· Suited for automotive electronics· Inhibit input· Wide temperature rangePinoutSpecifications Parameter Symbol Limit Values Unit min. ...

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SeekIC No. : 004520970 Detail

TLE4258: Features: · Low-drop voltage· Low quiescent current· Reset output· Protection against reverse polarity· Overvoltage protection 70 V· Short-circuit proof· Suited for automotive electronics· Inhibit i...

TLE4258 Data Sheet

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Part Number:
TLE4258
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Low-drop voltage
· Low quiescent current
· Reset output
· Protection against reverse polarity
· Overvoltage protection 70 V
· Short-circuit proof
· Suited for automotive electronics
· Inhibit input
· Wide temperature range


Pinout

Connection Diagram


Specifications

Parameter Symbol Limit Values Unit
min. max.
Input (Pin 1)
Supply voltage
Polarity reversal with test pulse
t 2  100 ms
see test circuit
Load-dump with pulse shape
t 2   400 ms
see test circuit
Slew rate
0 V   VI 24 V
Slew rate
24 V VI  70 V
Current

VI
VI

VI


SR


SR
I I

15
70

36



70

100

10

2.5

 VV
V



V/ms

V/ms

A
Reset Output (Pin 2)
Voltage
Current		 VR
I R
8
10		 V
mA
Standby Output (Pin 3)
Voltage
Current		 VST
I ST
6
50		 V
Standby Output (Pin 4)
Current I GND - 1.8 A
Inhibit (main regulator on/off), (Pin 5)
Current		 I INH - ± 7.5 mA
Reset delay (Pin 6)
Voltage		 VC - VQ V
Main regulator output (Pin 7)
Voltage
VI VQ
Current		 VQ

I Q		 - 18

1.8		 V

A
Temperature
Junction temperature
Storage temperature		 Tj
Tstg
50		 150
150		 K/W
Operating Range
Input voltage VI    
Junction temperature T j 40 150 °C
Thermal resistance system air
system case		 R th SA
R th SC
65
4		 K/W
K/W


 




Description

The TLE4258 incorporates a main and standby-control regulator: The amplifiers regulate the output voltage by comparing the output voltage (from the voltage divider) with a highly precise reference voltage. The standby regulator directly controls the base of a PNP series transistor and the main regulator via a buffer that can be turned off with inhibit pulse at pin 5. If the output voltage VQ at pin 7 drops below 4.5 V, a reset signal is released which can only be disabled after a delay time to be set at pin 6. The main output of TLE4258 is current-limited and remains active up to the input voltage VI OFF.




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