15V to 250V input range internal start-up regulator
6.0碌A(chǔ) standby supply current for +V
IN
<20V
0.9mA operating supply current
5.0V V
DD
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 V
DD
= 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鈥檚 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 +V
IN(START)
> +V
IN(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
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ISDN network terminations
ISDN terminals
ISDN terminal adapters
Feature phones
SLIC circuits
PBX systems
Modems
Absolute Maximum Ratings*
+V
IN
, Input Voltage
Supply Voltage, V
DD
Operating Temperature Range
Storage Temperature Range
Power Dissipation @ 25擄C, SOIC
Power Dissipation @ 25擄C, Plastic DIP
*All voltages referenced to GND
-0.5V to +250V
-0.5V to +10V
-40擄C to +85擄C
-65擄C to +150擄C
750mW
1000mW
Distributed power systems
DC/DC converters
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
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Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
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