National Semiconductor LM32, Руководство пользователя

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Copyright 2004 National Semiconductor Corporation 13 www.national.com
3.1.2 LM40 Evaluation Board Connections Only
Connector
Label
Pin
Number
Description
J1 N/A
USB Cable Input. Connect the USB cable to this jack
after the SensorEval software has been loaded on the
PC.
1,2 NC On the evaluation board this is jumpered to ground.
3,4 GND On the evaluation board this is jumpered to ground.
5,6
3.3_SBY This is the +3.3V voltage supplied by the on-
board voltage regulator.
7,8
SWD This is the Single wire interface signal created by
the on-board microcontroller.
9,10
ADD This is the address select signal created by the on-
board microcontroller.
11,12
VCCP_IN This is the +1.2V voltage monitoring input to
the LM40. On the evaluation board this input is jumpered
to a +1.1V (typical) source.
J2
Output header
provides user with
signals for test
purposes only.
Do not apply any
external power or
signals to any of
the pins on these
headers!
13,14
+2.5VIN This is the +2.5V voltage monitoring input to the
LM40. On the evaluation board this input is jumpered to a
+1.1V (typical) source.
1,2 NC On the evaluation board this is jumpered to ground.
3,4
+12VIN This is the +12V voltage monitoring input to the
LM40. On the evaluation board this is jumpered to +3.3V
for test purposes.
5,6
+5VIN This is the +5V voltage monitoring input to the
LM40. On the evaluation board this is jumpered to +3.3V
for test purposes.
7,8
D2+ This is the anode of the second remote diode input to
the LM40. A jumper connects to the base-collector
(anode) of Q1, a MMBT3904 transistor.
9,10
D2- This is the cathode of the second remote diode input
to the LM40. A jumper connects to the emitter (cathode)
of Q1, a MMBT3904 transistor.
11,12
D1+ This is the anode of the second remote diode input to
the LM40. A jumper connects to the base-collector
(anode) of Q2, a MMBT3904 transistor.
J3
Output header
provides user with
signals for test
purposes only.
Do not apply any
external power or
signals to any of
the pins on these
headers!
13,14
D1- This is the cathode of the second remote diode input
to the LM40. A jumper connects to the emitter (cathode)
of Q1, a MMBT3904 transistor.
J4, J5
These Headers are not used for evaluation board
purposes. They are not stuffed or used.
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