HV440 Datasheet, PDF (1/4 Pages) Supertex, Inc – High-Voltage Ring Generator

HV440
High-Voltage Ring Generator
Ordering Information
Operating Voltage
V_PP1 - V_NN1
220V
Package Options
SOW-16
HV440WG
Features
❏ 220V maximum operating voltage
❏ Integrated high voltage transistors
❏ Up to 70 V_RMS ring signal
❏ Pulse by pulse output over current protection
❏ 5 REN output capability
❏ External MOSFETs enhance output rating to 20 REN
Applications
❏ Microcontroller or microprocessor controlled 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_PP1 - V_NN1, power supply voltage
V_PP1, positive high voltage supply
V_PP2, positive gate voltage supply
V_NN1, negative high voltage supply
V_NN2, negative gate voltage supply
V_DD, logic supply
Storage temperature
Power dissipation
+240V
+120V
+120V
-170V
-170V
+7.5V
-65°C to +150°C
800mW
General Description
The Supertex HV440 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 output P- and N-Channel transistors are con-
trolled independently by the logic inputs P_IN and N_IN. Connecting
the mode pin to ground will enable the device to be controlled with
a single input, N_IN. This adds a 200ns deadband on the control
logic to avoid cross conduction on the high voltage output. A logic
high on N_IN will turn the high voltage P-Channel on and the N-
Channel off. The high voltage outputs have pulse by pulse over
current protection set by two external sense resistors. Nominal
PWM logic input frequency is 100KHz.
Pin Configuration
V_PP1
1
P_GND
2
GND
3
Mode
4
P_IN
5
N_IN
6
EN
7
V_DD
8
top view
SOW-16
16
V_PP2
15
P_GATE
14
V_PSEN
13
HV_OUT
12
V_NSEN
11
N_GATE
10
V_NN2
9
V_NN1
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
Supertex website:
responsibility is assumed for possible omissions or inaccuracies.
http://www.supertex.com. For complete liability information on all
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are
the
subject to change without notice. For the latest product specifications, refer to the
most current databook or to the Legal/Disclaimer page on the Supertex website.