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LA-ISPPAC-POWR1014 Scheda tecnica(PDF) 2 Page - Lattice Semiconductor

Il numero della parte LA-ISPPAC-POWR1014
Spiegazioni elettronici  In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller
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Produttore elettronici  LATTICE [Lattice Semiconductor]
Homepage  http://www.latticesemi.com
Logo LATTICE - Lattice Semiconductor

LA-ISPPAC-POWR1014 Scheda tecnica(HTML) 2 Page - Lattice Semiconductor

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Lattice Semiconductor
LA-ispPAC-POWR1014/A Automotive Family Data Sheet
5-2
MOSFET drivers. In high-voltage mode these outputs can provide up to 8V for driving the gates of n-channel MOS-
FETs so that they can be used as high-side power switches controlling the supplies with a programmable ramp rate
for both ramp up and ramp down.
The LA-ispPAC-POWR1014/A incorporates a 24-macrocell CPLD that can be used to implement complex state
machine sequencing for the control of multiple power supplies as well as combinatorial logic functions. The status
of all of the comparators on the analog input channels as well as the general purpose digital inputs are used as
inputs by the CPLD array, and all digital outputs may be controlled by the CPLD. Four independently programmable
timers can create delays and time-outs ranging from 32µs to 2 seconds. The CPLD is programmed using Logi-
Builder™, an easy-to-learn language integrated into the PAC-Designer
® software. Control sequences are written to
monitor the status of any of the analog input channel comparators or the digital inputs.
The on-chip 10-bit A/D converter is used to monitor the VMON voltage through the I
2C bus of the LA-ispPAC-
POWR1014A device.
The I
2C bus/SMBus interface allows an external microcontroller to measure the voltages connected to the VMON
inputs, read back the status of each of the VMON comparator and PLD outputs, control logic signals IN2 to IN4 and
control the output pins (LA-ispPAC-POWR1014A only).
Figure 5-1. LA-ispPAC-POWR1014/A Block Diagram
CPLD
24 MACROCELLS
53 INPUTS
JTAG LOGIC
CLOCK
OSCILLATOR
TIMERS
(4)
I2C
INTERFACE
ADC*
MEASUREMENT
CONTROL LOGIC*
*LA-ispPAC-POWR1014A only.
VMON1
VMON2
VMON3
VMON4
VMON5
VMON6
VMON7
VMON8
VMON9
VMON10
IN1
IN2
IN3
IN4
OUT3/(SMBA*)
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
HVOUT1
HVOUT2


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