The HIP2103 and HIP2104 are half bridge drivers designed for
applications using DC motors, three-phase brushless DC
motors, or other similar loads.
Two inputs (HI and LI) are provided to independently control
the high side driver (HO) and the low side driver (LO).
Furthermore, the two inputs can be configured to
enable/disable the device, thus lowering the number of
connections to a microcontroller and lowering costs.
The very low IDD bias current in the Sleep Mode prevents
battery drain when the device is not in use, thus eliminating
the need for an external switch to disconnect the driver from
the battery.
A fail-safe mechanism is included to improve system reliability
and to minimize the possibility of catastrophic bridge failures
due to controller malfunction. Internal logic prevents both
outputs from turning on simultaneously when HI and LI are
both high simultaneously. Dead-time is still required on the
rising edge of the HI (or LI) input when the LI (or HI) input
transitions low.
Integrated pull-down resistors on all of the inputs (LI, HI, VDen
and VCen) reduces the need for external resistors. An active
low resistance pull-down on the LO output ensures that the low
side bridge FET remains off during the Sleep Mode or when
VDD is below the undervoltage lockout (UVLO) threshold.
The HIP2104 has a 12V linear regulator and a 3.3V linear
regulator with separate enable pins. The 12V regulator
provides internal bias for VDD and the 3.3V regulator provides
bias for an external microcontroller (and/or other low voltage
ICs), thus eliminating the need for discrete LDOs or DC/DC
converters.
The HIP2103 is available in a 3x3mm, 8 Ld TDFN package and
the HIP2104 is available in a 4x4mm, 12 Ld DFN package.

Features
• 60V maximum bootstrap supply voltage
• 3.3V and 12V LDOs with dedicated enable pins (HIP2104)
• 5µA sleep mode quiescent current
• 4V undervoltage lockout
• 3.3V or 5V CMOS compatible inputs with hysteresis
• Integrated bootstrap FET (replaces traditional boot strap diode)

Applications
• Half bridge, full bridge and BLDC motor drives
(see Figures 21, 22, 23)
• UPS and inverters
• Class-D amplifiers
• Any switch mode power circuit requiring a half bridge driver