Hot-selling and scarce ISPPAC-POWR1220AT8-01TN100I Power Supply Support Circuit Adjustable QFP spot stock

Product Descriptions

The Lattice Power Manager II ispPAC-POWR1220AT8  is a general-purpose power-supply monitor, sequence  and margin controller, incorporating both in-system programmable logic and in-system programmable analog  functions implemented in non-volatile E2 CMOS® technology. The ispPAC-POWR1220AT8 device provides 12  independent analog input channels to monitor up to 12  power supply test points. Each of these input channels  offers a differential input to support remote ground  sensing, and has two independently programmable  comparators to support both high/low and in-bounds/ out-of-bounds (window-compare) monitor functions. Six  general-purpose digital inputs are also provided for miscellaneous control functions.

The ispPAC-POWR1220AT8 provides 20 open-drain  digital outputs that can be used for controlling DC-DC  converters, low-drop-out regulators (LDOs) and optocouplers, as well as for supervisory and general-purpose logic interface functions. Four of these outputs ​(HVOUT1-HVOUT4) may be configured as high-voltage MOSFET drivers. In high-voltage mode these outputs can  provide up to 12V for driving the gates of n-channel MOSFETs 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.

Product Features

 Monitor, Control, and Margin Multiple Power Supplies

• Simultaneously monitors up to 12 power supplies

• Provides up to 20 output control signals

• Provides up to eight analog outputs for margining/trimming power supply voltages

• Programmable digital and analog circuitry

 Power Supply Margin and Trim Functions

• Trim and margin up to eight power supplies

• Dynamic voltage control through I2C

• Four hardware selectable voltage profiles

• Independent Digital Closed-Loop Trim function for each output

 Embedded PLD for Sequence Control

• 48-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

• 12 independent analog monitor inputs

• Differential inputs for remote ground sense

• Two programmable threshold comparators per analog input

• Hardware window comparison

• 10-bit ADC for I2C monitoring

 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

• Dynamic trimming/margining control

 3.3V Operation, Wide Supply Range 2.8V to 3.96V

• In-system programmable through JTAG

• Industrial temperature range: -40°C to +85°C

• 100-pin TQFP package, lead-free option

Product Photos

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