HT45B1S Datasheet, PDF (1/9 Pages) Holtek Semiconductor Inc – IGBT Driver with LDO and Voltage Detector

HT45B1S
IGBT Driver with
LDO and Voltage Detector
Features
• Integrated Low Dropout Voltage Regulator – LDO
♦♦ _{Output driving capability: 150mA (max)}
♦♦ _{Low quiescent current: 7μA (typ)}
♦♦ _{Low drop voltage}
• Integrated Level Shifter
• Voltage detect protection for level shift output
enable control
♦♦ _{Detect VDD}
♦♦ _{Detect VCC2}
• Package: 8-SOP
Applications
• Battery powered systems
• Communication equipments
• Audio/video equipment
• Home appliances
General Description
This IGBT driver device is specifically designed for
applications which require low level logic levels
such as those from microcontrollers to interface to
power insulated gate bipolar transistors. As the device
includes an internal LDO, a level shifter and voltage
detector circuits, it integrates into a single package
the external components usually required by these
applications. This functional integration enables the
device to offer the advantages of reduced circuitry
and consequently reduced costs in these applications.
The device contains all the level shifting circuitry
required match the high voltage and high current
requirements of IGBT devices. To prevent
malfunctions and possible system damage, an internal
voltage detector monitors the system voltage level to
determine if the level shifter can be enabled or not.
Block Diagram
VCC1
VDD
VSS1
VSS2
A
LDO
VSS1
VDD
VCC2
VDET
RDY
VSS1 VSS2
VDD
RDY
VCC2
LS
A
AX
VCC2
AX
VSS1 VSS2
Rev. 1.10
1
January 06, 2016