PAC2514x Users Guide Preview
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Rev. 1.3 12 December 2023 © 2023 Qorvo US, Inc.
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8.3
Driver Manager
Features
•
High-Side gate drivers for CHG and DSG FET
•
Low-side gate driver for external FUSE
8.3.1 Block Diagram
DRIVER MANAGER
SOC BUS
CHG
HSD
APPLICATION SPECIFIC
POWER DRIVERS
DSG
HSD
FUSE
VCP
VCP
LSD
VP
DRVEN.DRVEN
FUSE.FUSEEN
ICBCTL0
ICBCTL1
DRVEN.DRVEN
PROT
PROT
Functional Description
The Application Specific Power Drivers
TM
(ASPD) module drives the gate of the external CHG and DSG
FETs and external protection fuse FET for the battery pack.
The CHG and DSG FET gates are driven from the CHG and DSG pins. The gate drive voltage for the
CHG and DSG FETs is VCP (BAT + 9V). The FUSE output is a low-side switch supplied by VP which is
intended for driving the gate on an external FET, which is used to blow an external fuse in series with
PACK+ and the battery stack.
Source Follower Mode can be selected for lower current operations
and not require enabling the charge pump. In this mode, CHG drive is off and DSG is on with a
pull up to BAT. These modes are control by the DRVMODE control bits (see
SOC.DRVCTL
(Driver Control, SOC 0x02)
The FUSE output is a low-side switch supplied by VP which is intended for driving the gate on
an external FET which is typically used to below an external fuse in series with PACK+ and the
battery stack. The FUSE could support another low-side driver need such as driving an LED.
The ASPD also integrates gate driver over-current, under-voltage and over-voltage protection. Over
current and battery over voltage protections can be enabled using the SIGMGRCTL1 register and the
