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Details, datasheet, quote on part number:HV450WG
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| Part: | HV450WG |
| Category: | Multimedia => Audio => Sound Generators => Ring Generator |
| Description: | High Voltage Telecommunication Ring Generator |
| Company: | Supertex, Inc. |
| Datasheet: | Download HV450WG datasheet File size : 86 kB |
| Request For quote: | Find where to buy HV450WG
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Datasheet text preview:
HV450 High-Voltage Ring Generator
Ordering Information
Operating Voltage
VNN1 -220V
Package Options
SOW-16 HV450WG
Features
Integrated high voltage transistors 67VRMS ring signal Output over current protection Can drive external MOSFETs for larger loads
General Description
The Supertex HV450 is a PWM high voltage ring generator. The high voltage output P- and N-channel transistors are controlled independently by the logic inputs PIN and NIN. For application where a single control pin (NIN) is desired, the mode pin should be connected to Gnd. This adds a 200ns deadband on the control logic to avoid cross conduction on the high voltage output. A logic high on NIN will turn the high voltage P-Channel on and the N-Channel off. The outputs can drive up to 5 RENs. The HV450 can drive external MOSFETs for applications requiring larger loads. The IC can be powered down by connecting the enable pin to VDD. The high voltage outputs have pulse by pulse over current protection.
Applications
High voltage ring generator Set-top/Street box ring generator Pair gain ring generator
Pin Configuration
N/C PG N D GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VPP PGATE VPSEN HVOUT V NSEN NGATE VNN2 VNN1
Absolute Maximum Ratings*
VNN1, power supply voltage VPP, P-channel gate voltage supply VNN2, N-channel gate voltage supply VDD, logic supply Storage temperature Power dissipation
* All voltages referenced to ground
Mode PI N
-240V -20V VNN1+20V +7.5V -65°C to +150°C 600mW
NIN EN VD D
top view SOW-16
12/13/01
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the 1 Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
HV450
Electrical Characteristics
(Over operating supply voltages unless otherwise specified, TA = -40°C to +85°C.) Symbol Parameters VPP VNN1 VNN2 VDD INN1Q IDDQ INN1 IDD IIL VIL VIH
P-channel linear regulator output voltage
Min -10 - 220 4.5
Typ
Max -18 -110 VNN1 + 10.0 5.5
Unit V V V V µA µA mA
Conditions
High voltage negative supply Logic supply voltage VNN1 quiescent current VDD1 quiescent current VNN1 operating current VDD operating current Mode logic input low current Logic input low voltage Logic input high voltage
Negative linear regulator output voltage VNN1 + 6.0 300 90 35 1.4
500 25 200 100
PIN = NIN = EN = L PIN = NIN = L, EN = H PIN = NIN = EN = L PIN = NIN = L, EN = H No load, VOUTP and VOUTN switching at 100KHz Mode = 0V VDD = 5.0V VDD = 5.0V
1.0 25 0 4.0 1.0 5.0
mA µA V V
High Voltage Output
Symbol Parameters RSOURCE VOUTP source resistance RSINK td(ON) trise t d(OFF) tfall tdb Vpsen Vnsen tshortP tshortN twhout twlout VOUTP sink resistance HVOUT delay time HVOUT rise time HVOUT delay time HVOUT fall time Logic deadband time HVOUT current source sense voltage HVOUT current sink sense voltage HVOUT off delay time when current source sense is activiated HVOUT off delay time when current sink sense is activated Minimum pulse width for HVOUT at PGND Minimum pulse width for HVOUT at VNN1 -1.2 VNN1 + 0.8 70 70 Min Typ 65 65 150 50 200 50 250 -0.8 VNN1 + 1.2 150 150 500 500 Max Unit ns ns ns ns ns V V ns ns ns ns Conditions IOUT = 100mA IOUT = -100mA PIN = high to low, Mode = high PIN = high to low NIN = low to high, Mode = high NIN = low to high Mode = low
Truth Table
NIN L L H* H L H X P IN L H L* H X X X Mode H H H H L L X EN L L L L L L H H VOUT Pgnd High Z * V NN1 V NN1 Pgnd High Z
*This state will short VNN1 to Pgnd and should therefore be avoided.
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HV450
Block Diagram
PGND
Current S ense a D nd river LR ear in eg
Vpsen
VDD PIN NIN EN Mode GND
VHigh L ltage o T evel ranslator
Pgate VPP HVOUT
Logic VDD
VHigh L ltage o T evel ranslator LR ear in eg
VNN2 Ngate
Current S ense a D nd river
Vnsen
VNN1
Pin Description
VPP VNN1 VNN2 VDD GND PGND PIN NIN EN Mode HVOUT Vpsen Vnsen Pgate Ngate P-channel gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should be connected between PGND and VPP. Negative high voltage supply. N-channel gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should be connected between VNN2 and VNN1. Logic supply voltage. Low voltage ground. High voltage power ground. Logic control input. When mode is high, logic input high turns OFF output high voltage P-Channel. Logic control input. When mode is high, logic input high turns ON output high voltage N-Channel. Logic enable input. Logic low enables IC. Logic mode input. Logic low activates 200nsec deadband. When mode is low, NIN turns on and off the high voltage N- and P-Channels. Pin is not used and should be connected to VDD or ground. High voltage output. Voltage swings from PGND to VNN1. Pulse by pulse over current sensing for P-Channel MOSFET. Pulse by pulse over current sensing for N-Channel MOSFET. Gate drive for external P-channel MOSFET. Gate drive for external N-channel MOSFET.
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