ispPAC-POWR604

Monitor and Control Multiple Power Supplies
• Simultaneously monitors and sequences up to six power supplies
• Sequence controller for power-up conditions
• Provides four output control signals
• Programmable digital and analog circuitry
Embedded PLD for Sequence Control
• Implements state machine and input conditional events
• In-System Programmable (ISP™) through JTAG and on-chip E2CMOS^®
Embedded Programmable Timers
• Two Programmable 8-bit timers (32s to 524ms)
• Programmable time delay for pulse stretching or other power supply management
Analog Comparators for Monitoring
• Six analog comparators for monitoring
• 192 precise programmable threshold levels spanning 1.03V to 5.72V
• Each comparator can be independently configured around standard logic supply voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
• Other user-defined voltages possible
• Six direct comparator outputs
Embedded Oscillator
• Built-in clock generator, 250kHz
• Programmable clock frequency
• Programmable timer pre-scaler
• External clock support
Programmable Open-Drain Outputs
• Four digital outputs for logic and power supply control
• Expandable with ispMACH™ 4000 CPLD
2.25V to 5.5V Supply Range
• In-system programmable at 3.0V to 5.5V
• Industrial temperature range: -40 to +85
• Automotive temperature range: -40 to +125
• 44-pin TQFP package
• Lead-free package option

1. VDDINP is the supply pin that controls logic inputs IN1-IN4 only. Place 0.1F capacitor to ground and supply the VDDINP pin with appropriate supply voltage for the given input logic range.
2. Digital inputs are tolerant up to 5.5V, independent of the VDDINP voltage.

The Lattice ispPAC^®-POWR604 incorporates both insystem programmable logic and in-system programmable analog circuits to perform special functions for power supply sequencing and monitoring. The ispPACPOWR604 device has the capability to be configured through software to control up to four outputs for power supply sequencing and six comparators monitoring supply voltage limits, along with four digital inputs for interfacing to other control circuits or digital logic. Once configured, the design is downloaded into the device through a standard JTAG interface. The circuit configuration and routing are stored in non-volatile E2CMOS. PAC-Designer,^® an easy-to-use Windows-compatible software package, gives users the ability to design the logic and sequences that control the power supplies or regulator circuits. The user has control over timing functions, programmable logic functions and comparator threshold values as well as I/O configurations.