Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
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ISPnano Series Programmer - User Manual – V1.11 – 12
th
May 2011
58
4.2 Typical applications of each power supply
The table below gives an overview of the typical applications of the different ISPnano programmer
power supplies.….
# Power Supply
Voltage
range
(V DC)
Features / typical application of power supply
1
Programmer Controlled
Target Vcc (TVCC)
Power Supply
1.8 – 5.0
•
Used to power the internal
‘Programmer Line
Driver Circuitry’
which sets the signal levels for
the
‘Programmer Target I/O’
pins.
•
Used to apply controlled power to any Target System
(UUT) which can be powered at 1.8 to 5.0V.
•
Can also be used to power up the UUT at a specified
voltage for target testing and / or voltage calibration
purposes.
•
This power supply also features current / over-
current monitoring.
2
Programmer Controlled
Target Vpp (TVPP)
Power Supply
6.5 – 13.5
•
This power supply should only be used for devices
which require a
‘Vpp’
programming voltage to force
the device into
‘programming mode’
.
•
The voltage is defined by the programming
algorithm and is not user-definable.
3
Programmer controlled
EXTERNAL VCC Switch
1.2 – 30.0
•
Allows an
‘External power supply’
to be
switched under programmer control to a Target
System (UUT)
•
Typically used to power a UUT which requires
an input voltage of >5.0V
•
Can also be used if the
‘Target I/O Signal
Voltage’
needs to be different to the actual
‘Target Voltage’
e.g. an IC is powered at 3.3V
but the main UUT circuitry must be powered at
e.g. 5.0V.
•
Used to power the relay coils at +12V on the
‘ISPnano Series 3 ATE’
programmer
The following sections describe the various power supplies in more detail.
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