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TL496CP Datasheet(PDF) 1 Page - Texas Instruments

Part # TL496CP
Description  9-V POWER-SUPPLY CONTROLLERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TL496CP Datasheet(HTML) 1 Page - Texas Instruments

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TL496C, TL496Y
9-V POWER-SUPPLY CONTROLLERS
SLVS012B – AUGUST 1978 – REVISED AUGUST 1995
Copyright
© 1995, Texas Instruments Incorporated
4–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Internal Step-Up Switching Regulator
Fixed 9-V Output
Charges Battery Source During
Transformer-Coupled-Input Operation
Minimum External Components Required
(1 Inductor, 1 Capacitor, 1 Diode)
1- or 2-Cell-Input Operation
description
The TL496C power-supply control circuit is designed to provide a 9-V regulated supply from a variety of input
sources. Operable from a 1- or 2-cell battery input, the TL496C performs as a switching regulator with the
addition of a single inductor and filter capacitor. When ac coupled with a step-down transformer, the TL496C
operates as a series regulator to maintain the regulated output voltage and, with the addition of a single catch
diode, time shares to recharge the input batteries.
The design of the TL496C allows minimal supply current drain during standby operation (125
µA typical). With
most battery sources, this allows a constant bias to be maintained on the power supply. This makes power
instantly available to the system, thus eliminating power-up sequencing problems.
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
TA
SURFACE MOUNT
(D)
PLASTIC DIP
(P)
FORM
(Y)
0
°C to 70°C
TL496CD
TL496CP
TL496Y
functional block diagram
Switching
Voltage
Regulator
Control
9-V
Series
Regulator
2
2C INPUT
T INPUT
1C INPUT
3
4
GND
GND
5
7
See Note 1
OUTPUT
FEEDBACK
SW
1
6
8
NOTE 1: Terminals 5 and 7, though connected together internally, must both be terminated to ground to ensure proper circuit operation.
1
2
3
4
8
7
6
5
FEEDBACK
2C INPUT
1C INPUT
T INPUT
OUTPUT
GND
SW
GND
D OR P PACKAGE
(TOP VIEW)
Terminals 5 and 7 are connected together internally.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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