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HV853, HV856, HV8571

HV853, HV856, HV8571 Selling Leads, Datasheet

MFG:SUPERTEX  D/C:07+

HV853, HV856, HV8571 Picture

HV853, HV856, HV8571 Datasheet download

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Part Number: HV853

 

MFG: SUPERTEX

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D/C: 07+

 

 

 
 
 
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HV853 Suppliers

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  • HV803

  • Vendor: Supertex Pack: SMD Qty: 901 Note: original,in stock"  Adddate: 2024-03-29
  • Inquire Now
  • AMASS ELETRONICS LIMITED   China
    Contact: Ms.tinahou   MSN:tinaaec@hotmail.com
    Tel: 86-755-82265120
    Fax: 86-755-82265220
    (0)
  • HV803LG

  • Vendor: Supertex D/C: 02+& Qty: 3000  Adddate: 2024-03-29
  • Inquire Now
  • extra technology limited   China
    Contact: Mr.BecksBao   MSN:baoyaming221@hotmail.com
    Tel: 86-010-62670478
    Fax: 86-010-62670458
    (0)
  • HV823

  • Vendor: Supertex Pack: SMD Qty: 1101 Note: original,in stock"  Adddate: 2024-03-29
  • Inquire Now
  • AMASS ELETRONICS LIMITED   China
    Contact: Ms.tinahou   MSN:tinaaec@hotmail.com
    Tel: 86-755-82265120
    Fax: 86-755-82265220
    (0)

About HV803

PDF/DataSheet Download

Datasheet: HV803

File Size: 82657 KB

Manufacturer: SUTEX [Supertex, Inc]

Download : Click here to Download

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HV856 Suppliers

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  • HV803

  • Vendor: Supertex Pack: SMD Qty: 901 Note: original,in stock"  Adddate: 2024-03-29
  • Inquire Now
  • AMASS ELETRONICS LIMITED   China
    Contact: Ms.tinahou   MSN:tinaaec@hotmail.com
    Tel: 86-755-82265120
    Fax: 86-755-82265220
    (0)
  • HV803LG

  • Vendor: Supertex D/C: 02+& Qty: 3000  Adddate: 2024-03-29
  • Inquire Now
  • extra technology limited   China
    Contact: Mr.BecksBao   MSN:baoyaming221@hotmail.com
    Tel: 86-010-62670478
    Fax: 86-010-62670458
    (0)
  • HV823

  • Vendor: Supertex Pack: SMD Qty: 1101 Note: original,in stock"  Adddate: 2024-03-29
  • Inquire Now
  • AMASS ELETRONICS LIMITED   China
    Contact: Ms.tinahou   MSN:tinaaec@hotmail.com
    Tel: 86-755-82265120
    Fax: 86-755-82265220
    (0)

About HV803

PDF/DataSheet Download

Datasheet: HV803

File Size: 82657 KB

Manufacturer: SUTEX [Supertex, Inc]

Download : Click here to Download

Related PDF Download

Related Part Number

HV8571 Suppliers

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  • HV803

  • Vendor: Supertex Pack: SMD Qty: 901 Note: original,in stock"  Adddate: 2024-03-29
  • Inquire Now
  • AMASS ELETRONICS LIMITED   China
    Contact: Ms.tinahou   MSN:tinaaec@hotmail.com
    Tel: 86-755-82265120
    Fax: 86-755-82265220
    (0)
  • HV803LG

  • Vendor: Supertex D/C: 02+& Qty: 3000  Adddate: 2024-03-29
  • Inquire Now
  • extra technology limited   China
    Contact: Mr.BecksBao   MSN:baoyaming221@hotmail.com
    Tel: 86-010-62670478
    Fax: 86-010-62670458
    (0)
  • HV823

  • Vendor: Supertex Pack: SMD Qty: 1101 Note: original,in stock"  Adddate: 2024-03-29
  • Inquire Now
  • AMASS ELETRONICS LIMITED   China
    Contact: Ms.tinahou   MSN:tinaaec@hotmail.com
    Tel: 86-755-82265120
    Fax: 86-755-82265220
    (0)

About HV803

PDF/DataSheet Download

Datasheet: HV803

File Size: 82657 KB

Manufacturer: SUTEX [Supertex, Inc]

Download : Click here to Download

Related PDF Download

Related Part Number

HV853 General Description

The Supertex HV853 is a high voltage, low noise EL (electroluminescent) lamp driver. It is the low noise version of the HV852 with improved EMI performance, operating over an input voltage range of 3.2V to 5.0V. It is designed to drive EL lamps of up to 1.5in2 , with capacitive values up to 5.3nF. The HV853 converts a low voltage DC input to a high voltage AC output across an EL lamp. A nominal regulated output voltage of 80V is applied to the EL lamp. It uses a charge pump scheme to boost the input voltage eliminating the need for an external inductor, diode, and high voltage capacitor commonly found in conventional topologies.

The charge pump circuit discharges its energy into an EL lamp through a high voltage H-bridge. Once the voltage reaches its regulated limit, it is turned off to conserve power. The EL lamp is then discharged to ground and the H-bridge changes state to allow the charge pump to charge the EL lamp in the opposite direction.

The EL lamp frequency can be set either by an external resistor REL or by applying an external clock where the clock frequency is divided by 128 to set the EL lamp frequency.

HV853 Maximum Ratings

Parameter Value
VDD , supply voltage
Storage temperature
Power dissipation
Power dissipation (8-Lead MSOP)
-0.5V to 6.5V
-65 to +150
1.6W
300mW


Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground.

HV853 Features

·No external components required when using an external EL clock frequency
·Audible noise reduction with improved EMI
·EL frequency can be set by an external resistor
·DC to AC converter
·Drives up to 5.3nF (approx. 1.5in2  lamp) load
·Output voltage regulation
·Enable function
·Available in 8-Lead DFN and MSOP packages

HV853 Typical Application

·Cellular phone keypad
·Watches
·Small handheld wireless devices
·MP3 Players

HV853 Connection Diagram

HV856 General Description

The Supertex HV856 is a high voltage, triple EL lamp driver designed for driving combined EL lamps of up to 3.0in2 (1.0 in2 each). It is a higher voltage version of the HV858. The input supply voltage range is from 1.8V to 6.5V. The device is designed so that the input voltage to the inductor can differ from the input voltage to the device (split supply). The device uses a single inductor and a minimum number of passive components.

The nominal regulated output voltage that is applied to the EL lamp is ±105V. The HV856 has two internal oscillators; one for the internal switching MOSFET and the other for the high voltage EL lamp driver. The EL lamp frequency is fi xed internally at 500Hz. The power converter oscillator runs 256 times faster than the EL lamp driver at 128kHz. An external inductor is connected between the LX and VDD pins (or between the LX pin and separate voltage source in the case of a split supply application). A 0.002-0.01F, 200V capacitor is connected between the CS pin and ground.

The switching MOSFET charges the external inductor and discharges it into the capacitor at the CS pin. The voltage at CS will start to increase. Once the voltage at CS reaches a nominal value of 105V, the switching MOSFET is turned OFF to conserve power.

One side of the three EL lamps is connected to the COM pin of the HV856 and the other side to the EL1, EL2, and EL3 pins of the HV856. Each EL lamp output may be independently controlled to have one of the seven brightness levels or can be completely turned OFF by a 10-bit serial data input register.

The 10-bit control code has three bits to control the brightness level of each EL lamp and one bit to optionally control the power converter. The 3-bit binary brightness control code controls the number of 500Hz cycles (from 0 to 7) in a group of seven cycles.

HV856 Maximum Ratings

VDD............ -0.5 to +7V
SDI, SDK ........... -0.5 to +7V
ISW ..............  0.7A peak
VCS............. 0.5 to +120V
Power dissipation ........1.6W
Storage temperature .. -65 to +150
Operating temperature.. -40 to +85

HV856 Features

·High voltage, Tri-EL lamp driver with common terminal
·Independent brightness control for all three lamps
·210VPP output voltage for higher brightness
·1.8V to 6.5V operating supply voltage
·Output voltage regulation
·Two-pin serial data communication for control
·Linear brightness control with seven steps at constant effi ciency
·128kHz fi xed switching frequency
·Split supply capability
·Patented high effi ciency EL lamp driver
·Single miniature inductor drives all three lamps
·Only four external components
·Burst mode power converter for best effi ciency
·CMOS compatible serial interface with noise rejection
·150nA max. leakage current when disabled
·Power-on reset causes all outputs to be off when fi rst powered up
·Available in 10-Lead DFN package (0.8mm thickness)

HV856 Typical Application

·Multi-segment, variable displays
·Cell phone keypads and displays
·MP3 players

HV856 Connection Diagram

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