Ring Generator. HV430 Datasheet

HV430 Generator. Datasheet pdf. Equivalent

Part HV430
Description High Voltage Ring Generator
Feature Supertex inc. HV430 High-Voltage Ring Generator Features ► 105Vrms ring signal ► Output overcurre.
Manufacture Supertex Inc
Datasheet
Download HV430 Datasheet




HV430
Supertex inc.
HV430
High-Voltage Ring Generator
Features
105Vrms ring signal
Output overcurrent protection
5.0V CMOS logic control
Logic enable/disable to save power
Adjustable deadband in single-control mode
Power-on reset
Fault output for problem detection
Applications
Line access cards
Set-top/Street box
The RESET input functions as a power-on reset when
connected to an external capacitor. The FAULT output
indicates an overcurrent condition and is cleared after 4
consecutive cycles with no overcurrent condition. A logic low
on RESET or ENABLE clears the FAULT output. It is active-
low and open-drain to allow wire OR’ing of multiple drivers.
PGATE and NGATE are controlled independently by logic inputs
PIN and NIN when the MODE pin is at logic high. A logic high on
PIN will turn on the external P-channel MOSFET. Similarly, a
logic high on NIN will turn on the external N-channel MOSFET.
Lockout circuitry prevents the N and P switches from turning
on simultaneously. A pulse width limiter restricts pulse widths
to no less than 100 - 200ns.
General Description
The Supertex HV430 is a high voltage PWM ring generator
integrated circuit. The high voltage outputs, VPGATE and
VNGATE, are used to drive the gates of external high voltage
N-channel and P-channel MOSFETs in a push-pull
configuration. Overcurrent protection is implemented for
both the P-channel and N-channel MOSFETs. External
sense resistors set the over-current trip point.
For applications where a single control input is desired, the
MODE pin should be connected to SGND. The PWM control
signal is then input to the NIN pin. A user-adjustable deadband
in the control logic ensures break-before-make on the outputs,
thus avoiding cross conduction on the high voltage output
during switching. A logic high on NIN will turn the external P-
Channel MOSFET on and the N-Channel off, and vice versa.
The IC can be powered down by applying a logic low on the
ENABLE pin, placing both external MOSFETs in the off state.
Functional Block Diagram
VDD
FAULT
De-glitcher
clk reset
PIN
MODE
DEADBAND
NIN
Control
Logic
+5.0V
VDD
VPP2
VPP2
Regulator
VPP1
Down
Translator
Up
Translator
Current
Trip
P
Driver
Up
Translator
N
Driver
VPSEN
VPGATE
VNGATE
VPP1
RSENSE
Ringer
Output
ENABLE
RESET
VDD
10µA
Doc.# DSFP-HV430
A031414
Down
Translator
Current
Trip
SIG PWR
GND GND
VNN2
Regulator
VNN2
VNSEN
VNN1
RSENSE
VNN1
Supertex inc.
www.supertex.com



HV430
Ordering Information
Part Number
Package Option Packing
HV430WG-G
20-Lead SOW 1000/Reel
-G denotes a lead (Pb)-free / RoHS compliant package
Pin Configuration
1
HV430
20
Absolute Maximum Ratings
Parameter
Value
VPP1 - VNN1, power supply voltage
VPP1, positive high voltage supply
VPP2, positive gate voltage supply
VNN1, negative high voltage supply
VNN2, negative gate voltage supply
VDD, logic supply
Operating temperature range
+340V
+220V
+220V
-220V
-220V
+7.5V
-40OC to +85OC
Storage temperature range
-65OC to +150OC
Power dissipation
600mW
Stresses beyond those listed under “Absolute Maximum Ratings” may
cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions
beyond those indicated in the operational sections of the specifications is
not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
20-Lead SOW
(top view)
Product Marking
Top Marking
YYWW AAA
HV430WG
LLLLLLLLLL
Bottom Marking
CCCCCCCCCCC
YY = Year Sealed
WW = Week Sealed
A = Assembler ID
L = Lot Number
C = Country of Origin*
= “Green” Packaging
*May be part of top marking
Package may or may not include the following marks: Si or
20-Lead SOW
Typical Thermal Resistance
Package
20-Lead SOW
θja
66OC/W
Electrical Characteristics (Over operating supply voltage unless otherwise specified. TA = -40°C to +85°C)
Sym Parameter
Min Typ Max Units Conditions
External Supplies
VPP1 High voltage positive supply
IPP1Q
VPP1 quiescent current
IPP1 VPP1 operating current
50 - 200 V ---
- 250 500 µA PIN = NIN = 0V
-
-
2.0
mA
No load, VOUTP and VOUTN
switching at 100KHz
VNN1
INN1Q
INN1
High voltage negative supply
VNN1 quiescent current
VNN1 operating current
VPP1 -325
-
-
-
250
-
-50 V ---
500 µA PIN = NIN = 0V, RDB = 18kΩ
1.0
mA
No load, VOUTP and VOUTN
switching at 100KHz
VDD Logic supply voltage
IDDQ VDD quiescent current
IDD VDD operating current
4.50 - 5.50 V ---
- 300 400 µA PIN = NIN = 0V, RDB = 18kΩ
-
-
1.0
mA
PIN = NIN = 100KHz,
RDB = 18kΩ
Doc.# DSFP-HV430
A031414
Supertex inc.
2 www.supertex.com







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