PAC5253 Datasheet, PDF (37/68 Pages) Active-Semi, Inc – Power Application Controller

PAC5253
Power Application Controller
12. APPLICATION SPECIFIC POWER DRIVERS (ASPD)
12.1. Features
 4 low-side and 3 ultra-high-voltage high-side gate drivers
 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
HS1
FAULT
PROTECT _LS2
LS1
ENDRV
DELAY
LEVEL
SHIFT
PRE-
DRIVER
DELAY
LOW-SIDE GATE DRIVERS
V
P
PRE-
DRIVER
DXBx
DXHx
DXSx
DRLx
12.3. Functional Description
The Application Specific Power Drivers (ASPD, Figure 12-1) module handles power driving for power control
applications. PAC5253 has four low-side gate drivers (DRLx), three ultra-high-voltage high-side gate drivers (DXHx).
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 20 shows the ASPD resources available on PAC5253.
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Rev 1.10‒January 28, 2016