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PDF HV9605C Data sheet ( Hoja de datos )
| Número de pieza | HV9605C | |
| Descripción | High Voltage Current Mode PWM Controller | |
| Fabricantes | Supertex Inc | |
| Logotipo |  |
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HV9605C
Preliminary
High Voltage Current Mode PWM Controller
Ordering Information
+VIN
Min Max
15V 250V
Feedback
Accuracy
< ± 1%
Max
Duty Cycle
49%
14 Pin
Plastic DIP
HV9605CP
Package Options
14 Pin
Narrow Body SOIC
HV9605CNG
Die
HV9605CX
Features
❏ BiCMOS/DMOS technology
❏ Current mode control
❏ 49% duty cycle operation
❏ Programmable START/STOP capability
❏ 15V to 250V input range internal start-up regulator
❏ 6.0µA standby supply current for +VIN <20V
❏ 0.9mA operating supply current
❏ 5.0V VDD supply operation
❏ 30KHz to 300KHz internal oscillator
❏ 15KHz to 150KHz converter output frequency
❏ 1.0MHz low offset error amplifier
❏ 1.25V 2% band gap reference
❏ Output driver optimized for under 10W applications
❏ Low driver output impedance with VDD = 0V
❏ Fast (90nsec) over current shutdown
❏ All pins are ESD protected
General Description
The Supertex HV9605C is a BiCMOS/DMOS single-output,
current mode, pulse width modulator IC designed to meet the
requirements of ETR-080 for ISDN applications. In a 14 pin
package, it provides all the necessary functions to implement a
single-switch PWM with a minimum of external parts.
Utilizing Supertex’s proprietary BiCMOS/DMOS technology, it
requires less than one tenth of the operating power of conventional
bipolar PWM ICs. Dynamic range for regulation is also increased
to approximately 8 times that of similar bipolar parts. It operates
directly from any DC input voltage between 15 and 250 VDC.The
START and STOP input voltage thresholds can be programmed
within the operating input voltage range by means of a resistor
divider, provided +VIN(START) > +VIN(STOP). The output stage is
push-pull CMOS, eliminating the need for external clamping
diodes. The clock frequency is set with a single external resistor.
Applications
❏ ISDN network terminations
❏ ISDN terminals
❏ ISDN terminal adapters
❏ Feature phones
❏ SLIC circuits
❏ PBX systems
❏ Modems
❏ Distributed power systems
❏ DC/DC converters
Absolute Maximum Ratings*
+VIN, Input Voltage
Supply Voltage, VDD
Operating Temperature Range
Storage Temperature Range
Power Dissipation @ 25°C, SOIC
Power Dissipation @ 25°C, Plastic DIP
-0.5V to +250V
-0.5V to +10V
-40°C to +85°C
-65°C to +150°C
750mW
1000mW
*All voltages referenced to GND
11/12/01
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 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 produ1cts, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
1 page  
Functional Block Diagram
+VIN
STOP
Enable
H
L
START
+
C
—
VSTART
Start-Up
Regulator
+ UVLO
C
VREF —
VDD
Bootstrap Good
PWM Good
STATUS
Clock
Oscillator
CLK Q
DQ
CLR
MOSFET Driver
VDD
SQ
+
A-
— CR
+
OUT
CS
PGND
VDD
Bandgap
Reference
Generator
RT
REF
NI
FB
COMP
Typical Application Circuit
SGND
HV9605C
+
48V INPUT
-
+
HV9605C
+VIN
STOP
VDD
STATUS
START
OUT
CS
PGND
SGND
RT REF NI FB COMP
++
TN2124K1
or
TN2524N8
+
+
40V
ISOLATED
OUTPUT
-
RESET
+5.0V
REFERENCED
TO INPUT (-)
TERMINAL
©2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
5
11/12/01
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet HV9605C.PDF ] | |
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