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TLE4307

Features: • High Current Capability• Short Circuit Protection• Overtemperature Protection• Active Zener Circuit• 3.3 V or 3.8 V output voltage• Low Output Voltage Tolerance• High Current Capability 800 mA• Short Circuit Protection• Overtemperat...

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SeekIC No. : 004521005 Detail

TLE4307: Features: • High Current Capability• Short Circuit Protection• Overtemperature Protection• Active Zener Circuit• 3.3 V or 3.8 V output voltage• Low Output Voltage...

TLE4307 Data Sheet

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Part Number:
TLE4307
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:

• High Current Capability
• Short Circuit Protection
• Overtemperature Protection
• Active Zener Circuit
• 3.3 V or 3.8 V output voltage
• Low Output Voltage Tolerance
• High Current Capability 800 mA
• Short Circuit Protection
• Overtemperature Protection
• Optimized SMD Package


Application

The IC is meant to be used with a DC power supply. The power charge pump limits the energy that is needed to drive the load at the output Q of the IC. The energy is stored to a capacity CC, connected to pin C. When pin C reaches VC,off, the power charge pump is
switched off. Since the power supply consists of the inductance and a parasitic series resistance, the remaining available energy is dissipated in the external power supply and therefore does not stress the IC with this dispensable energy. The very low drop regulator is provided with the energy, stored in CC. The regulator requires an output capacitor CQ for the stability of the regulating circuit. Stability is guaranteed at values above 22 µF and an ESR 1 Ω within the operating temperature range.


Pinout

Connection Diagram


Specifications

Parameter Symbol Limit Values Unit Notes
min. max.
Input
Input voltage VI 0.3 VICL V VICL = zener
clamp voltage
Input current (during
pump cycle)		 II 5 mA internally limited
Input current (during
active zener operation)		 II 5 1000 mA tp < 1 ms;
duty cycle 10%
Charge-Pump Output
Voltage VC 0.3 20 V
Current IC mA internally limited
Slewrate Input
Voltage VSL 0.3 4.0 V
Current ISL 0.5 0.5 mA
Regulator Output
Voltage VQ 0.3 25 V
Current IQ mA internally limited
Temperature
Junction temperature Tj 40 150 °C
Storage temperature TStg 50 150 °C
Thermal Data
Junction-ambient Rthj-a 70 K/W
Rthj-c 4 K/W
ESD
All pins to GND VESD 2 2 kV HBM Model
Operating Range
Input voltage VI 0 VICL V
Output current II 0 600 mA
Junction temperature Tj 40 150 °C



Description

The TLE4307 is a monolithic integrated power charge pump with a Low Drop Voltage Regulator. The power charge pump loads an energy storage capacitor at pin C. The voltage regulator supplies 3.3 V or 3.8 V out of this storage capacitor with up to 800 mA output current. The TLE4307 is intended for use with DC supplies for consumer or industrial applications.

The TLE4307 consists of 2 stages, the charge pump and the very low drop voltage regulator.




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