Supertex inc.
High Voltage
Ring Generator IC
Features
►
►
►
►
►
►
220V maximum operating voltage
Integrated high voltage transistors
Up to 70V
RMS
ring signal
Pulse by pulse output over current protection
5 REN output capability
External MOSFETs enhance output rating to 20 REN
HV440
General Description
The Supertex HV440 is a monolithic integrated circuit capable
of generating up to 70V RMS sine wave output at frequencies
of 15 to 60Hz with a load of 5 North American RENs. Its
out putrating 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
controlled independently by the logic inputs PIN and NIN.
Connecting the mode pin to ground will enable the device
to be controlled with a single input, NIN. 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 high voltage
outputs have pulse by pulse overcurrent protection set by two
external sense resistors. Nominal PWM logic input frequency
is 100KHz.
Applications
►
Microcontroller or microprocessor controlled high
voltage ring generator
►
Set-top/street box ring generator
►
Pair gain ring generator
►
Wireless local loops
►
Fibre in the loop/to the curb
►
Coax cable loop
Typical Application Circuit
VPP1
4.3Ω
High
Voltage
Level
Translator
Current
Sense
and
Driver
VPSEN
0.1µF
PGATE
VPP2
HVOUT
Sine Wave
Ring Output
1.5mH
VDD
PIN
NIN
m-Controller
Linear
Reg
EN
Mode
Logic
PGND
V
DD
High
Voltage
Level
Translator
Linear
Reg
0.22µF
GND
VNN2
NGATE
Current
Sense
and
Driver
0.1µF
VNSEN
HV440
Supertex inc.
4.3Ω
VNN1
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
HV440
Ordering Information
Device
HV440
-G indicates package is RoHS compliant (‘Green’)
10.30x7.50mm body
2.65mm height (max)
1.27mm pitch
16-Lead SOW
Pin Configuration
1
16
HV440WG-G
16-Lead SOW (WG)
(top view)
Absolute Maximum Ratings
Parameter
V
PP1
- V
NN1
, power supply voltage
V
PP1
, positive high supply voltage
V
PP2
, positive gate supply voltage
V
NN1
, negative high voltage
V
NN2
, negative gate voltage
V
DD
, logic supply voltage
Storage temperature
Power dissipation
Value
+240V
+120V
+120V
-170V
-170V
+7.5V
-65°C to +150°C
800mW
Product Marking
Top Marking
HV440WG
YYWW AAA
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
16-Lead SOW (WG)
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.
Electrical Characteristics
(over operating supply voltage unless otherwise specified. T = 25°C)
A
Sym
V
PP1
V
PP2
V
NN1
V
NN2
V
DD
I
PP1Q
I
NN1Q
I
DDQ
Parameter
High voltage positive supply
Positive linear regulator output
High voltage negative supply
Negative linear regulator output
Logic supply
V
PP1
quiescent current
V
NN1
quiescent current
V
DD1
quiescent current
Min
15
V
PP1
-9.9
V
PP1
-220
V
PP1
+5.6
4.5
-
-
-
-
-
Typ
-
-
-
-
-
250
250
-
-
-
Max
110
V
PP1
-19.1
-110
V
NN1
+10.5
5.5
400
550
150
60
1.7
Units
Conditions
V
T
A
= -40°C to +85°C
µA
µA
P
IN
= N
IN
= 0V,
T
A
= -40°C to +85°C
P
IN
= N
IN
= 0V, MODE = 0
P
IN
= N
IN
= 0V, MODE = 1
No load, V
OUTP
and V
OUTN
switching at 100KHz,
T
A
= -40°C to +85°C
I
PP1
V
PP1
operating current
mA
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
2
HV440
Electrical Characteristics
(cont.)
(over operating supply voltage unless otherwise specified. T = 25°C)
A
Sym
I
NN1
I
DD
I
IL
V
IL
V
IH
Parameter
V
NN1
operating current
V
DD
operating current
Mode logic input low current
Logic input low voltage
Logic input high voltage
Min
-
-
-
0
4.0
Typ
-
-
25
-
-
Max
1.9
1.0
-
1.0
5.0
Units
mA
mA
µA
V
V
Conditions
No load, V
OUTP
and V
OUTN
switching at 100KHz,
T
A
= -40°C to +85°C
---
MODE = 0V
V
DD
= 5.0V
V
DD
= 5.0V
High Voltage Output
R
SOURCE
R
SINK
ΔR/ΔT
t
D(ON)
t
RISE
t
D(OFF)
t
FALL
t
DB
V
PSEN
V
OUT
P source resistance
V
OUT
P sink resistance
Change in source/sink resistance
over temperature
HV
OUT
delay time
HV
OUT
rise time
HV
OUT
delay time
HV
OUT
fall time
Logic deadband time
HV
OUT
current source sense
voltage
-
-
-
-
-
-
-
-
V
PP1
-0.75
V
PP1
-0.67
V
NN1
+0.75
V
NN1
+0.65
-
-
-
-
60
60
0.33
150
-
200
-
-
V
PP1
-1.00
-
V
NN1
+1.00
-
-
-
-
-
80
80
-
-
50
-
50
200
V
PP1
-1.25
V
PP1
-1.31
V
NN1
+1.25
V
NN1
+1.33
100
100
500
500
Ω
Ω
Ω/°C
ns
ns
ns
ns
ns
V
I
OUT
= 100mA
I
OUT
= -100mA
T
A
= -40°C to +85°C
P
IN
= high to low,
Mode = high
P
IN
= high to low
N
IN
= low to high,
Mode = high
N
IN
= low to high
Mode = low
T
A
= -40°C to +85°C
V
NSEN
t
SHORTP
t
SHORTN
t
WHOUT
t
WLOUT
HV
OUT
current sink sense voltage
HV
OUT
off time when current
source sense is activated
HV
OUT
off time when current sink
sense is activated
Minimum pulse width for
HV
OUT
at V
PP1
Minimum pulse width for
HV
OUT
at V
NN1
V
ns
ns
ns
ns
T
A
= -40°C to +85°C
---
---
T
A
= -40°C to +85°C
T
A
= -40°C to +85°C
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
3
HV440
Truth Table
N
IN
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
HV
OUT
VPP1
High Z
–
VNN1
VNN1
VPP1
High Z
This state will short V
PP1
to V
NN1
and should therefore be avoided.
Block Diagram
Current
Sense
and
Driver
VPP1
VDD
PIN
NIN
EN
MODE
GND
High
Voltage
Level
Translator
VPSEN
Linear
Reg
PGATE
VPP2
HVOUT
Logic
V
DD
PGND
High
Voltage
Level
Translator
Linear
Reg
VNN2
Current
Sense
and
Driver
NGATE
VNSEN
VNN1
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
4
HV440
Pin Description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
VPP1
PGND
GND
MODE
PIN
NIN
EN
VDD
VNN1
VNN2
NGATE
VNSEN
HVOUT
VPSEN
PGATE
VPP2
Description
Positive high voltage supply.
High voltage power ground.
Low voltage ground.
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.
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.
Active low enable input.
Logic supply voltage.
Negative high voltage supply.
Negative gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should
be connected between VNN2 and VNN1.
Gate drive for external N-channel MOSFET.
Pulse by pulse over current sensing for internal N-Channel MOSFET.
High voltage output. Voltage swings from VPP1 to VNN1.
Pulse by pulse over current sensing for internal P-Channel MOSFET.
Gate drive for external P-channel MOSFET.
Positive gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should
be connected between VPP2 and VPP1.
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
5
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