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HV461FG-GのメーカーはSupertexです、この部品の機能は「Ring Generator Controller IC」です。 |
部品番号 | HV461FG-G |
| |
部品説明 | Ring Generator Controller IC | ||
メーカ | Supertex | ||
ロゴ | |||
このページの下部にプレビューとHV461FG-Gダウンロード(pdfファイル)リンクがあります。 Total 14 pages
Supertex inc.
HV461
Ring Generator Controller IC
Features
►► 3.3V operation, logic inputs 3.3V & 5.0V compatible
►► Digital control of ring frequency, amplitude, and offset
►► Control via 8-bit bus or via individual inputs
►►
8 built-in ring
50, 60Hz
frequencies:
12,
162/3,
20,
25,
331/3,
40,
►► External ring frequency input
►► Low distortion sine wave synthesizer
►► AC-only, AC+DC, or DC-only ringer output
►► Adjustable over-current protection
►► Internal precision voltage references
►► Power-on reset and undervoltage lockout for hotswap
capability
►► Sync output with adjustable lead time for synchronizing
ringing relays
►► Fault output for problem detection
►► Open or closed loop operation
►► Efficient 4-quadrant operation
►► Zero-cross turn-on with zero-cross turn-off option
Applications
►► PBX
►► DLC
►► Key Systems
►► Remote Terminal
►► Wireless Loop Systems
General Description
The HV461FG is a highly integrated ring generator controller
IC, designed to work with a patented four-quadrant inverter
topology, with synchronous rectifiers on the secondary side to
achieve higher efficiencies. The inverter delivers the desired
ring voltage from a standard -48V Telecom power supply.
The HV461 consists of a sine wave synthesizer that can provide
eight different ring frequencies for universal applications. Any
other frequency in the 12 to 63Hz range can be obtained by
applying an external logic signal to the IC. A transparent latch
permits control of the ringer output individually or through the
8-bit bus. The output amplitude and DC offset can be digitally
controlled providing high flexibility to the designers. The
patented inverter topology using the HV461 controller IC is
capable of achieving higher efficiencies, typically over 80%,
and drive up to a 40 REN load.
The controller allows ring generators to provide a floating
94VAC (rms) waveform that can be referenced to either the
-48V or any other offset level by using the programmable
offset pins of the IC. Output offset may be achieved by directly
generating the offset within the power stage, or by floating the
output stage on a DC source, or both.
The HV461 also has an internal boost converter that can be
used to provide the gate drive voltages for the two MOSFETS
on the primary side and the two secondary rectifiers on the
secondary side.
Typical Application Circuit
+3.3V
I/O
-48V
Current Sense
Xtal
VDD Gate Drive
Out
HV461
-48V
0V
-48V
OR
94VAC(rms)
Doc.# DSFP - HV461
C071913
Supertex inc.
www.supertex.com
1 Page Voltage Reference
Sym Parameter
VREF1
TCREF1
∆Vref1
VREF2
TCREF2
∆Vref2
Reference voltage 1
Temperature coefficient
Output regulation
Reference voltage 2
Temperature coefficient
Output regulation
Logic Inputs
Sym Parameter
VIN(lo)
VIN(hi)
IIN(lo)
IIN(hi)
CIN
tS
tH
Input voltage low
Input voltage high
Input current low
Input current high
Input capacitance
Set-up time
Hold time
Reset
Sym
Parameter
VRESET(ON)
VRESET(OFF)
VRESET (HYS)
IP-UP
RESET on voltage
RESET off voltage
RESET hysteresis
RESET pull-up current
Undervoltage Lockout
Sym Parameter
VDD(ON)
VDD(OFF)
VDD(HYS)
VGD(ON)
VGD(OFF)
VGD(HYS)
VDD on voltage
VDD off voltage
VDD hysteresis
VGD on voltage
VGD off voltage
VGD hysteresis
HV461
Min
1.213
-
-6.25
2.425
-
-12.5
Typ
1.250
200
-
2.500
500
-
Max
1.288
-
+6.25
2.575
-
0
Units Conditions
V Ta = 25ºC
µV/ºC ---
mV
V
µV/ºC
Iout = ±100µA
TA = 25ºC
---
mV Iout = 0 - 100µA source
Min
-
0.7·VDD
-
-
-
-
-
Typ
-
-
-
-
-
-
-
Max
0.3·VDD
-
-1
1
10
100
100
Units
V
V
µA
µA
pF
ns
ns
Conditions
---
---
VIN = 0V
VIN = 5.0V
---
---
---
Min
1.200
1.000
0.150
7.0
Typ
1.325
1.125
0.200
10.0
Max
1.450
1.250
0.250
13.0
Units
V
V
V
µA
Conditions
---
---
---
---
Min Typ Max
2.75 2.85 2.95
2.50 -
-
- 0.10 -
same as VGD regulation point
7.0 -
-
0.20 -
-
Units
V
V
V
V
V
V
Conditions
---
---
---
---
---
---
Doc.# DSFP - HV461
C071913
Supertex inc.
3 www.supertex.com
3Pages PWM Controller
Sym Parameter
PWM Frequency
fPWM PWM frequency
tPWMSYNC(OUT)
PWM sync output pulse
width
tPWMSYNC(IN)
fPWMSYNC(IN)
VPWMSYNC(lo)
PWM sync input pulse width
PWM sync input frequency
range
PWM sync output low
voltage
IPWMSYNC PWM sync pull-up current
Switch Driver Outputs
VOUT(lo)
VOUT(hi)
tRISE
tFALL
Output voltage, low
Output voltage, high
Rise time
Fall time
Timing
D Duty cycle
Dlimit Duty cycle limit
IDCL VDCL input current
tDB Primary switch deadband
tDLY Secondary switch delay
Min
21.25
127.5
30
25
25
-
-
-
VGD-0.2
-
-
23
48
73
12
72
22
62
-
0
0.95
0
0.95
Typ
25.00
150.0
50
-
-
-
100
-
-
-
-
25
50
75
20
80
30
70
-
100
1.00
100
1.00
HV461
Max Units Conditions
28.75
172.5
70
-
150
0.2
-
kHz RPWM = 500kΩ
kHz RPWM = 83kΩ
ns ---
ns ---
kHz ---
V IOUT = 1.0mA sink
µA ---
0.2 V IOUT = 20mA sink
- V IOUT = 20mA source
50 ns CL = 4nF
50 ns CL = 4nF
27
52
77
28
88
38
78
1.0
150
1.05
150
1.05
%
%
%
PWMIN = 0.625V
PWMIN = 1.250V
PWMIN = 1.875V
VDCL = 0V
% VDCL = 0.50V, PWMIN = 0V
% VDCL = 0.50V, PWMIN = 2.5V
% VDCL = 0.75V, PWMIN = 0V
% VDCL = 0.75V, PWMIN = 2.5V
µA VDCL = 0 - 1.0V
ns CDB = 0pF
µs RDB = 14kΩ, CDB = 100pF
ns CDLY= 0pF
µs RDLY = 14kΩ, CDLY = 100pF
Doc.# DSFP - HV461
C071913
Supertex inc.
6 www.supertex.com
6 Page | |||
ページ | 合計 : 14 ページ | ||
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部品番号 | 部品説明 | メーカ |
HV461FG-G | Ring Generator Controller IC | Supertex |