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TL103WAIDR
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TL103WAIDR Benutzerreferenzhandbuch - TI

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TL103WAIDR Benutzerreferenzhandbuch

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SMPS
_
+
OP AMP2
_
+
OP AMP1
TL103W/A
Current
Sense
AC
Line
Opto
Isolator
Battery
R6
R3 R4 R5
R8
R2
R1
R7
R9
Constant Voltage Control
Constant Current Control
2.5 V
V
REF
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TL103W
,
TL103WA
SLOS437M APRIL 2004REVISED OCTOBER 2016
TL103W Dual Operational Amplifiers
With Internal Reference
1
1 Features
1
Operational Amplifier
Low Offset Voltage Max of:
TL103WA…3 mV (25°C) and 5 mV
(Full Temperature)
TL103W…4 mV (25°C) and 5 mV
(Full Temperature)
Low Supply Current…350 μA/Channel (Typ)
Unity Gain Bandwidth…0.9 MHz (Typ)
Input Common-Mode Range Includes GND
Large Output-Voltage Swing…
0 V to V
CC
1.5 V
Wide Supply-Voltage Range…3 V to 32 V
2.5-kV ESD Protection (HBM)
Voltage Reference
Fixed 2.5-V Reference
Tight Tolerance Max of:
TL103WA…0.4% (25°C) and 0.8%
(Full Temperature)
TL103W . . . 0.7% (25°C) and 1.4%
(Full Temperature)
Low Temperature Drift…7 mV (Typ) Over
Operating Temperature Range
Wide Sink-Current Range . . .
0.5 mA (Typ) to 100 mA
Output Impedance …0.2 (Typ)
2 Applications
Battery Chargers
Switch-Mode Power Supplies
Linear Voltage Regulation
Data-Acquisition Systems
3 Description
The TL103W and TL103WA combine the building
blocks of a dual operational amplifier and a fixed
voltage reference both of which often are used in
the control circuitry of both switch-mode and linear
power supplies. OP AMP1 has its noninverting input
internally tied to a fixed 2.5-V reference, while OP
AMP2 is independent, with both inputs uncommitted.
For the A grade, especially tight voltage regulation
can be achieved through low offset voltages for both
operational amplifiers (typically 0.5 mV) and tight
tolerances for the voltage reference (0.4% at 25°C
and 0.8% over operating temperature range).
The TL103W and TL103WA are characterized for
operation from –40°C to 105°C.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TL103W
TL103WA
SOIC (8) 4.90 mm x 3.91 mm
WSON (8) 4.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Circuit
Figure 1. TL103W/A in a Constant-Current and
Constant-Voltage Battery Charger
Verzeichnis

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