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ISPPAC-POWR1014-01T48I Datasheet(PDF) 2 Page - Lattice Semiconductor |
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ISPPAC-POWR1014-01T48I Datasheet(HTML) 2 Page - Lattice Semiconductor |
2 / 45 page Lattice Semiconductor ispPAC-POWR1014/A Data Sheet 2 MOSFET drivers. In high-voltage mode these outputs can provide up to 10V 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. The 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 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 (ispPAC-POWR1014A only). Figure 1. ispPAC-POWR1014/A Block Diagram CPLD 24 MACROCELLS 53 INPUTS JTAG LOGIC CLOCK OSCILLATOR TIMERS (4) I2C INTERFACE ADC* MEASUREMENT CONTROL LOGIC* *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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