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.

特性 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