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Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
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4.4 Programmer Controlled 'Target Vcc (TVCC) Power Supply'
The 'Programmer controlled Target Vcc Power Supply' is a very accurate user-programmable
power supply which has been designed to be able to provide controlled power to most Target
Systems (UUTs) which require a voltage between 1.8 and 5.0V. This power supply also features
'target current monitoring' so a current-limit can be set up to automatically shut down the power
supply in the event of a short-circuit.
Power supply features:
User programmable power supply – user can set up both Voltage and Current settings
•
The power supply can switch 1.2 to 5.0V @ 480mA to the Target System (UUT)
•
The power supply also generates the 'Programmer Line Driver Voltage' which sets the
•
Target I/O signal levels.
The voltage is output on the 'TVCC' pin of the programmer
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Voltage accuracy: +/- 1% using factory calibrated voltages
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Voltage accuracy: +/- 20 mV is possible at user-defined 'spot calibrated' voltages
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Fast voltage slew-rate on switch-on
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Power supply 'Voltage measurement' and 'Target Voltage validation' (checks that target
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voltage is within pre-set limits)
User-definable 'voltage stabilisation' settings before / after target switch on
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Target Voltage can also be measured if the programmer is not supplying power
•
Power supply by source up to 2 Amps continuously (before going into current limit) allowing it
•
to charge up the 'target system capacitance' at high speed
Target current monitoring with over-current detection at switch on
•
User-definable current stabilisation settings before / after target switch on
•
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ISPnano Series Programmer - User Manual – V1.11 – 12
th
May 2011
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