LA-ISPPAC-POWR1014 Datasheet, PDF (1/45 Pages) Lattice Semiconductor – In-System Programmable Power Supply Supervisor, Reset Generator and Sequencing Controller

LA-ispPAC^®-POWR1014/A
Automotive Family
In-System Programmable Power Supply Supervisor,
Reset Generator and Sequencing Controller
June 2008
Data Sheet DS1018
Features
■ Monitor and Control Multiple Power Supplies
• Simultaneously monitors up to 10 power
supplies
• Provides up to 14 output control signals
• Programmable digital and analog circuitry
■ AEC-Q100 Tested and Qualified
■ Embedded PLD for Sequence Control
• 24-macrocell CPLD implements both state
machines and combinatorial logic functions
■ Embedded Programmable Timers
• Four independent timers
• 32µs to 2 second intervals for timing sequences
■ Analog Input Monitoring
• 10 independent analog monitor inputs
• Two programmable threshold comparators per
analog input
• Hardware window comparison
• 10-bit ADC for I²C monitoring (LA-ispPAC-
POWR1014A only)
■ High-Voltage FET Drivers
• Power supply ramp up/down control
• Programmable current and voltage output
• Independently configurable for FET control or
digital output
■ 2-Wire (I²C/SMBus™ Compatible) Interface
• Comparator status monitor
• ADC readout
• Direct control of inputs and outputs
• Power sequence control
• Only available with LA-ispPAC-POWR1014A
■ 3.3V Operation, Wide Supply Range 2.8V to
3.96V
• In-system programmable through JTAG
• Automotive temperature range: -40°C to +105°C
• 48-pin TQFP package, lead-free option
Application Block Diagram
Primary
Supply
3.3V
Primary
Supply
Primary
Supply
2.5V
1.8V
Primary
Supply
POL#1
Primary
Supply
POL#N
Other Control/Supervisory
Signals
12 Digital
Outputs
2 MOSFET
Drivers
ADC*
4 Timers
LA-ispPAC-POWR1014A
*LA-ispPAC-POWR1014A only.
CPLD
24 Macrocells
53 Inputs
4 Digital
Inputs
I²C
Interface
I²C
Bus*
CPU
Description
Lattice’s Power Manager II LA-ispPAC-POWR1014/A is
a general-purpose power-supply monitor and sequence
controller, incorporating both in-system programmable
logic and in-system programmable analog functions
implemented in non-volatile E²CMOS^® technology. The
LA-ispPAC-POWR1014/A device provides 10 indepen-
dent analog input channels to monitor up to 10 power
supply test points. Each of these input channels has
two independently programmable comparators to sup-
port both high/low and in-bounds/out-of-bounds (win-
dow-compare) monitor functions. Four general-purpose
digital inputs are also provided for miscellaneous con-
trol functions.
The LA-ispPAC-POWR1014/A provides 14 open-drain
digital outputs that can be used for controlling DC-DC
converters, low-drop-out regulators (LDOs) and opto-
couplers, as well as for supervisory and general-pur-
pose logic interface functions. Two of these outputs
(HVOUT1-HVOUT2) may be configured as high-voltage
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brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without
notice.
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