1

Feedback

Max

BV

DSS

R

DS(ON)

Min

Max

Voltage

Duty Cycle

14 Pin Plastic DIP

20 Pin Plastic PLCC

200V

5.0

Ω

10V

120V

±1%

49%

HV9105P

HV9105PJ

200V

5.0

Ω

10V

120V

±1%

99%

HV9108P

HV9108PJ

Standard temperature range for all parts is industrial (-40

° to +85°C).

High-Voltage Switchmode Controllers with MOSFET

Ordering Information

General Description

The Supertex HV9105 and HV9108 are high-efficiency high

voltage SMPS ICs intended for use in power converters requiring

extreme efficiency at output power levels of 5.0W or less. The low

supply current (0.5mA max) allows them to be used to build

supplies which meet CCITT I.430 performance recommenda-

tions (60% efficiency at .025W out).

The HV9105/08 provides all the functions necessary to build a

single-switch current-mode converter of any common topology,

with a minimum of external parts.

In addition to high efficiency, because it uses Supertex’s propri-

etary high voltage BiCMOS/DMOS technology, the HV9105/08

offers numerous performance advantages when compared to

conventional PWM ICs. Dynamic range is approximately 8 times

wider than with bipolar ICs, both response speed and maximum

clock rate are faster, and no external power resistors or zeners are

necessary for high voltage starting.

Accessory circuits are included to provide either latching or

nonlatching shutdown. When shut down, device dissipation is

less than 4mW.

The HV9105/08 is intended for operation with input voltages from

10 to 120VDC.

Features

❏ 10 to 120V input range

❏ 200V, 5Ω output MOSFET

❏ Current-Mode Control

❏ High Efficiency

❏ CCITT Compatible

❏ Internal Start-up Circuit

Applications

❏ DC/DC Converters

❏ Distributed Power Systems

❏ ISDN Equipment

❏ PBX Systems

❏ Modems

Absolute Maximum Ratings

+V

120V

V

DS

200V

V

15.0V

Control Inputs

-0.3V to V

I

2.5A

Storage Temperature

-65

°C to 150°C

Power Dissipation, Plastic DIP

750mW

Power Dissipation, PLCC

1400mW

Package Outlines

MOSFET Switch

+V

IN

For detailed circuit and application information, please refer

to application notes AN-H13 and AN-H21 to AN-H24.

HV9105

HV9108

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 products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.