HV441 Supertex, Inc., HV441 Datasheet

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HV441

Manufacturer Part Number
HV441
Description
High-voltage Ring Generator
Manufacturer
Supertex, Inc.
Datasheet
1.HV441.pdf (8 pages)
Ordering Information
Features
❏ 220V maximum operating voltage
❏ Integrated high voltage transistors
❏ Up to 70 V
❏ Adjustable AC and DC output voltage level
❏ Adjustable ring signal start phase angle
❏ Pulse by pulse output over current protection
❏ 5 REN output capability
❏ External MOSFETs enhance output rating to 20 REN
Applications
❏ Stand alone high voltage ring generator
❏ Set-top/Street box ring generator
❏ Pair gain ring generator
❏ Wireless local loops
❏ Fiber in the loop/to the curb
❏ Coax cable loop
Absolute Maximum Ratings
V
V
V
V
V
V
V
Storage temperature
Power dissipation
02/25/03
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
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.
PP1
PP1
PP2
NN1
NN2
DD1
DD2
, positive high voltage supply
, positive gate voltage supply
, negative high voltage supply
, negative gate voltage supply
, low voltage logic supply
, low voltage analog/logic supply
- V
Operating Voltage
NN1
, power supply voltage
V
RMS
PP1
220V
ring signal
- V
NN1
High-Voltage Ring Generator
Package Options
-65°C to +150°C
44-Pin PLCC
HV441PJ
1200mW
+240V
+120V
+120V
-170V
-170V
+7.5V
+18V
1
General Description
The Supertex HV441 is a monolithic integrated circuit capable of
generating up to a 70V RMS sine wave output at frequencies of
15Hz to 60Hz with a load of 5 North American RENs. Its output
rating can be enhanced to 20 North American RENs with the
addition of two Supertex MOSFETs: one N-Channel MOSFET,
the TN2524N8 and one P-Channel MOSFET, the TP2522N8. The
high voltage outputs have pulse by pulse over current protection
set by two external sense resistors.
The HV441 generates a low voltage reference sine wave by using
external passive components. An external sine wave signal can
be used if desired. The HV441 amplifies the reference sine wave
signal by pulse width modulating the high voltage output at a
nominal frequency of 100KHz. An error amplifier compares the
output sine wave with the reference sine wave and adjusts the
pulse width accordingly. Both the amplitude of the output sine
wave and the DC offset voltage are adjustable.
For detailed circuit and application information, please
refer to application not AN-H35.
HV441

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HV441 Summary of contents

Page 1

... The HV441 generates a low voltage reference sine wave by using external passive components. An external sine wave signal can be used if desired. The HV441 amplifies the reference sine wave signal by pulse width modulating the high voltage output at a nominal frequency of 100KHz. An error amplifier compares the output sine wave with the reference sine wave and adjusts the pulse width accordingly ...

Page 2

... Min Typ Max 4 500 V – 2 DD2 80 80 Min Typ Max 0 V DD2 0 V DD2 0 V DD1 120 0 V DD1 2 HV441 Unit Conditions Ω 100mA OUT Ω -100mA OUT % V = +60V -160V PP1 NN1 % V = +60V -160V PP1 NN1 -40°C to +85°C ...

Page 3

... Connect to V when not in use. DD1 DD1 PP1 NN1 3 HV441 Unit Conditions -40°C to +85° -40°C to +85° -40°C to +85° -40°C to +85° -40°C to +85°C ...

Page 4

... Zero Voltage Crossing Detection V DD2 High Ramp Voltage Generator Level Translator V DD2 op-amp3 + – Input3+ Input3- Output3 4 Current V psen Sense and Driver V pgate Linear V Reg PP2 DD2 Linear V NN2 Reg V ngate Current Sense and V Driver nsen V NN1 HV441 V PP1 OUT GND ...

Page 5

... Typical 5 REN Application Circuit 5 HV441 ...

Page 6

... Typical 20 REN Application Circuit 6 HV441 ...

Page 7

... Input1+ Output3 Input3- Input3+ N top view 44-pin PLCC 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 222-8888 • FAX: (408) 222-4895 www.supertex.com HV441 02/25/03 ...

Page 8

PLCC Package Outline (PJ) .048/.042 .150 MAX .075 MAX Note 2 0.20max 3 Places Note Pin 1 identifi er must be located in the index area indicated.The Pin 1 ...

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