PAC5220_17 Datasheet, PDF (37/69 Pages) Active-Semi, Inc – Power Application Controller

PAC5220
Power Application Controller
12. APPLICATION SPECIFIC POWER DRIVERS (ASPD)
12.1. Features
 3 low-side and 3 high-side gate drivers
 1A gate driving capability
 Open-drain drivers with input capability
 Configurable delays and fast fault protection
12.2. Block Diagram
Figure 12-1. Application Specific Power Drivers
APPLICATION SPECIFIC POWER DRIVERS
HIGH-SIDE GATE DRIVERS
HS
FAULT
PROTECT
LS
ENDRV
DELAY
LEVEL
SHIFT
PRE-
DRIVER
DELAY
LOW-SIDE GATE DRIVERS
V
P
PRE-
DRIVER
DRBx
DRHx
DRSx
DRLx
DINOHIx DOUTOHIx
OHI DRIVERS
CONFIG
OHIx
12.3. Functional Description
The Application Specific Power Drivers (ASPD, Figure 12-1) module handles power driving for power control
applications. The PAC5220 has three low-side gate drivers (DRLx), three high-side gate drivers (DRHx), and
two high-voltage open-drain drivers (OHIx). Each gate driver can drive an external MOSFET or IGBT switch in
response to high-speed control signals from the microcontroller ports, and a pair of high-side and low-side gate
drivers can form a half-bridge driver. The open-drain drivers provide activation control for relays, LEDs, buffers,
and other loads.
Figure 12-2 below shows typical gate driver connections and Table 12-1 shows the ASPD resources available
on different PAC part numbers. The PAC5220 gate drivers support up to a 52V supply.
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Rev 1.5‒April 17, 2016