TCM853 Просмотр технического описания (PDF) - TelCom Semiconductor Inc => Microchip
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TCM853 Datasheet PDF : 7 Pages
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REGULATED GaAs FET BIAS SUPPLY
1 TCM850
TCM851
TCM852
TCM853
PIN CONFIGURATIONS
8-Pin SOIC
C1+
C1–
NEGOUT
SHDN
1
8 IN
C1+
2
7 GND
C1–
3
TCM850COA
TCM850EOA
6
OUT NEGOUT
4
5 FB
SHDN
1
8
2
7
3
TCM851COA
TCM851EOA
6
4
5
IN
C1+
GND
C1–
OUT NEGOUT
FB
OSC
1
8
2
7
3
TCM852COA
TCM852EOA
6
4
5
IN
GND
OUT
FB
C1+ 1
8
C1– 2
7
TCM853COA
NEGOUT 3 TCM853EOA 6
SHDN 4
5
IN
GND
OUT
CONT
2
Figure 2.
3
PIN DESCRIPTION
Pin No
(TCM850)
1
2
3
4
—
—
5
Pin No
(TCM851)
1
2
3
—
4
—
5
Pin No
(TCM852)
1
2
3
—
—
4
5
Pin No
(TCM853)
1
2
3
4
—
—
—
Symbol
C1+
C1–
NEGOUT
SHDN
SHDN
OSC
FB
—
—
—
5
CONT
6
6
7
7
8
8
6
6
OUT
7
7
GND
8
8
IN
Description
C1 positive input terminal.
C1 negative input terminal.
Negative (unregulated) output voltage.
4
Shutdown input (TTL active LOW).
Shutdown input (TTL active HIGH).
External oscillator input.
Feedback input. OUT is preset to – 4.1V when FB is
grounded. OUT may be adjusted to other voltages by
connecting a resistor divider as shown in Figure 4.
Control input. VOUT is adjusted with a positive control
voltage (0V to 10V) applied to this input through a resistive
5
divider (Figure 5).
Output voltage terminal.
Ground.
Positive power supply input voltage (4.5V to 10V).
6
7
TELCOM SEMICONDUCTOR, INC.
8
4-29
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