Microchip HV9150 Handleiding

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2017-2019 Microchip Technology Inc.DS20005689B-page 1

HV9150

Features

•6V to 500V Wide Output Voltage Range

•2.7V Low Input Voltage

•5W Maximum Output Power with External

MOSFET Driver

•Built-in Charge Pump Converter for the Gate

Driver

•Programmable Switching Frequency from 40 kHz

to 400 kHz

•Four Programmable Duty Cycles from 50% to

87.5%

•FB Return Ground Switch for Power-Saving

Applications

•Built-In Delay Timer for Internal Protection

•Non-Isolated DC/DC Converter

Applications

•Portable Electronic Equipment

• MEMS

• Printers

General Description

The HV9150 is a high output voltage Hysteretic mode

step-up DC/DC controller that has a built-in charge

pump converter and a linear regulator for a wide range

of input voltage. The Charge Pump Converter mode is

ideal for battery-powered applications. The internal

converter can provide a minimum of 5V gate driver

output voltage (at VIN= 2.7V) to the external N-channel

MOSFET. The range of 2.7V to 4.5V input supply

voltage is ideal for battery-powered applications, such

as portable electronic equipment. The internal linear

regulator is selected when a higher supply voltage rail

is available in the system.

A feedback return ground path switch is also integrated

into the device to minimize the quiescent current during

the controller shutdown. This feature provides power

savings for energy-critical applications.

In addition, a built-in timer is available to protect the

internal circuit and help dissipate the energy from the

external high-voltage storage capacitor. This device is

designed for systems requiring high-voltage and

low-current applications such as MEMS devices.

Package Type

Pads are at the bottom of the package. Center heat slug is at ground potential. See Table 3-1 for pin information.

16-lead QFN

(Top View)

VDD

GATE

FB_RTN

FB

VCONTROL

FREQ_ADJ

EXT_REF

CT

VLL

GND

EN

CP_EN

CCP1-

CCP1+

CCP2-

CCP2+

1

16

High-Voltage Output Hysteretic-Mode Step-Up DC/DC Controller

Product specificaties