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HT7660

Features: · Simple conversion of VDD to -VDD· Cascade connection (two devices are connected, VOUT= -2 VDD)· Boost pin for higher switching frequency· Easy to use· Requires only two external capacitors· No external diode required· Typically with no load voltage conversion,99.9% efficiency· Typical ...

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SeekIC No. : 004366990 Detail

HT7660: Features: · Simple conversion of VDD to -VDD· Cascade connection (two devices are connected, VOUT= -2 VDD)· Boost pin for higher switching frequency· Easy to use· Requires only two external capacito...

HT7660 Data Sheet

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Part Number:
HT7660
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:

· Simple conversion of VDD to -VDD
· Cascade connection (two devices are connected, VOUT= -2 VDD)
· Boost pin for higher switching frequency
· Easy to use
· Requires only two external capacitors
· No external diode required
· Typically with no load voltage conversion,99.9% efficiency
· Typical power efficiency is 98%
· Wide operating voltage range: 3V to 12V




Application

· RS-232 power supply
· On board negative supply for dynamic RAMS
· Supply voltage splitter, VO= ± VDD/2
· Operation amplifier supply
· Data acquisition systems
· Positive voltage doubler




Pinout

Connection Diagram




Specifications

Supply Voltage ............................-0.3V to 13V
Operating Temperature ..............-40 to 85
Storage Temperature...............-50 to 125

Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.






Description

HT7660 is a monolithicCMOSswitched-capacitor voltage converter.It is designed to complete a voltage conversion from positive to negative. The only required external components are two low cost electrolytic capacitors.

HT7660 includes a voltage regulator, an RC oscillator and four output power MOS switches.

The frequency of an RC oscillator HT7660 can be lowered by adding an external capacitor between VDD and the OSC pin, or an external clock can be connected to the OSC pin to replace the original oscillator. The LV terminal may be tied to VSS to disable the voltage regulator. By doing this, low voltage operation can be improved.






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