PN-3001P
PP-3001M
- 3 -
EXPLANATION OF IC
051-3396-90
NJM2386ADL3-33-TE1
Positive Voltage Regulator 3.3V
051-3517-90
impossible of exchange (LT3481EMSE#TRPBF)
Step-Down Switching Regulator
Terminal Description
BD (Pin 1):
This pin connects to the anode of the boost Schottky diode.
BOOST (Pin 2):
This pin is used to provide a drive voltage, higher than the input
voltage, to the internal bipolar NPN power switch.
SW (Pin 3):
The SW pin is the output of the internal power switch. Connect this
pin to the inductor, catch diode and boost capacitor.
VIN (Pin 4):
The VIN pin supplies current to the LT3481's internal regulator and
to the internal power switch. This pin must be locally bypassed.
RUN/SS (Pin 5):
The RUN/SS pin is used to put the LT3481 in shutdown mode. Tie
to ground to shut down the LT3481. Tie to 2.3V or more for nor-
mal operation. If the shutdown feature is not used, tie this pin to
the VIN pin.
PG (Pin 6):
The PG pin is the open collector output of an internal comparator.
PG remains low until the FB pin is within 10% of the final regula-
tion voltage. PG output is valid when VIN is above 3.5V and RUN/
SS is high.
BIAS (Pin 7):
The BIAS pin supplies the current to the LT3481's internal regula-
tor. Tie this pin to the lowest available voltage source above 3V
(typically VOUT). This architecture increases efficiency especially
when the input voltage is much higher than the output.
FB (Pin 8):
The LT3481 regulates the FB pin to 1.265V. Connect the feedback
resistor divider tap to this pin.
VC (Pin 9):
The VC pin is the output of the internal error amplifier. The volt-
age on this pin controls the peak switch current. Tie an RC net-
work from this pin to ground to compensate the control loop.
RT (Pin 10):
Oscillator Resistor Input. Connecting a resistor to ground from this
pin sets the switching frequency.
Exposed Pad (Pin 11):
Ground. The Exposed Pad must be soldered to PCB.
051-3518-90
NJM2846DL3-33-TE1
Positive Voltage Regurator 3.3V
051-3519-90
NJU7771F05-TE2
Positive Voltage Regurator 5.0V
051-9425-80
S-24CS64A0I-J8T1G
EEP-ROM
Terminal Description
pin
1: A 0
: IN : Address input.
pin
2: A 1
: IN : Address input.
pin
3: A 2
: IN : Address input.
pin
4: GND
: - : Ground.
pin
5: S DA
:I/O: Serial data input/output.
pin
6: S CK
: IN : Serial clock pulse input.
pin
7: Write Protect
: IN : Write protect signal input.
H = protect ON.
pin
8: VCC
: - : Positive voltage supply.
052-0320-00
M30876FJBGP
System Contoller
[ Note ] The program is not written in this IC. Therefore, you need to
write a program in this IC with the part exchange.
Terminal Description for PN-3001
pin
1: NU
: IN : Not in use.
pin
2: Speed Pulse
: IN : Speed pulse input.
pin
3: IMMOBI TX
: O : Serial data output for IMMOBI.
pin
4: IMMOBI RX
: IN : Serial data input for IMMOBI.
pin
5: BU DET
: IN : Backup detection signal input.
pin
6: GND
: - : Ground.
pin
7: CN VSS
: IN : Connect to VSS via a resistor.
pin
8: ILL ON
: IN : Illumination ON signal input.
pin
9: SYS ON
: O : System ON signal output.
pin 10: RESET
: IN : Reset signal input.
pin 11: X out
: O : Crystal connection.
pin 12: VSS
: - : Negative voltage supply.
pin 13: X in
: IN : Crystal connection.
pin 14: VDD
: - : Positive voltage supply.
pin 15: NMI
: IN : Nonmaskable interrupt. Connect to VDD
via a resistor.
pin 16: ACC IN
: IN : ACC ON flag input.
pin 17: PLL DO
: O : PLL serial data output.
5
4
3
2
1
Ground
N.C.
Power Outut
Control in, H = ON.
VCC
3
RT
VC
FB
BIAS
PG
10
9
8
7
6
BD
BOOST
SW
VIN
RUN/SS
1
2
3
4
5
TOP VIEW
11
5
4
3
2
1
N.C
Power Outut
Ground
VCC
Control in, H = ON.
3
1
2
3
5
4
Vin
Vout
Control (H= On)
Ground
N.C.
VCC
WP
SCL
SDA
8
7
6
5
A 0
A 1
A 2
GND
1
2
3
4
