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PDF TC43 Data sheet ( Hoja de datos )

Número de pieza TC43
Descripción LINEAR BUILDING BLOCK
Fabricantes TelCom Semiconductor 
Logotipo TelCom Semiconductor Logotipo



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No Preview Available ! TC43 Hoja de datos, Descripción, Manual

wwwL.daItNasEheAet4Ru.coBmUILDING BLOCK –
VOLTAGE REFERENCE, DUAL OP AMP,
DUAL COMPARATOR WITH SHUTDOWENVALMUAOTDIOEN
KIT
AVAILABLE
PRELIMINARY INFORMATION
TTC4433
LINEAR BUILDING BLOCK – VOLTAGE REFERENCE, DUAL OP AMP,
DUAL COMPARATOR WITH SHUTDOWN MODE
FEATURES
s Combines Two Op Amps, Two Comparators and a
Voltage Reference into a Single Package
s Optimized for Single Supply Operation
s Small Package .......... 16-Pin SOIC or DIP (Narrow)
s Ultra Low Input Bias Current ...... Less than 100pA
s Low Quiescent
Current ..................... 10µA, 5µA in Shutdown Mode
s Reference and One Comparator Remain Active in
Shutdown to Provide Supervisory Functions
APPLICATIONS
s Power Supply Circuits
s Embedded Systems
s Instrumentation
s Portable Equipment
s Consumer Products
s Replacements for Discrete Components
GENERAL DESCRIPTION
The TC43 is a mixed-function device combining two
general purpose op amps, two general purpose compara-
tors and a voltage reference in a single 16-pin package.
This increased integration allows the user to replace
two or three packages, saving space, lowering supply
current, and increasing system performance. A Shutdown
input, SHDN, disables the op amps and one of the compara-
tors, placing their outputs in a high-impedance state. The
reference and one comparator stay active in Shutdown
Mode. Standby power consumption is typically 5µA.
The TC43 is designed specifically for operation from a
single supply, however, operation from dual supplies is also
possible, and the power supply current drain is independent
of the magnitude of the power supply voltage.
Packaged in a 16-pin narrow SOIC (0.150 wide) or
16-pin DIP, the TC43 is ideal for applications requiring high
integration, small size and low power.
FUNCTIONAL BLOCK DIAGRAM
PIN CONFIGURATIONS (DIP and SOIC)
A1IN+
A1IN–
A2IN+
A2IN–
C1OUT
C2OUT
SHDN
VSS
+
AMP 1
+
AMP 2
–+
CMPTR 1
+
CMPTR 2
VDD
A1OUT
A2OUT
C1IN+
C1IN–
C2IN+
C2IN–
VREF+
A1IN+ 1
16 VDD
A1IN– 2
15 A1OUT
A2IN+ 3
14 A2OUT
A2IN– 4 TC43CPR 13 C1IN+
C1OUT 5 TC43EPR 12 C1IN–
C2OUT 6
11 C2IN+
SHDN 7
10 C2IN–
VSS 8
9 VREF
A1IN+ 1
A1IN– 2
A2IN+ 3
A2IN– 4
C1OUT 5
C2OUT 6
SHDN 7
VSS 8
16 VDD
TC43COR
TC43EOR
15 A1OUT
14 A2OUT
13 C1IN+
12 C1IN–
11 C2IN+
10 C2IN–
9 VREF
ORDERING INFORMATION
Part No.
Package
Temp. Range
TC43COR
TC43CPR
TC43EOR
TC43EPR
TC43EV
16-Pin SOIC (Narrow)
16-Pin Plastic DIP (Narrow)
16-Pin SOIC (Narrow)
16-Pin Plastic DIP (Narrow)
Evaluation Kit for TC43
0°C to +70°C
0°C to +70°C
– 40°C to +85°C
– 40°C to +85°C
1
TC43-1 3/12/97 TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.

1 page




TC43 pdf
wwwL.daItNasEheAet4Ru.coBmUILDING BLOCK –
VOLTAGE REFERENCE, DUAL OP AMP,
DUAL COMPARATOR WITH SHUTDOWN MODE
PRELIMINARY INFORMATION
TC43
3V
ALKALINE
TO SYSTEM DC/DC
CONVERTER
R4, 470k, 1%
+
AMP1
R2, 330k, 1%
R5, 7.5M
+
CMPTR1
BATTLOW
TC43
R1, 270k, 1%
Vr
+5V
CMPTR2
+
R6, 7.5M
R3, 470k, 1%
BATTFAIL
Figure 2. Precision Battery Monitor
VIN
SHDN
+
AMP1
2N2222
VOUT1
+
AMP2
2N2222
VOUT2
Vr
RA C1, 1µF
RA C2, 1µF
RB
TC43
VOUT = Vr x (RA + RB)/RB
Figure 3. Dual Low Dropout Regulator
5
RB

5 Page










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