TS34063A TSC [Taiwan Semiconductor Company, Ltd], TS34063A Datasheet

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TS34063A

Manufacturer Part Number
TS34063A
Description
Dc to Dc Converter Controller
Manufacturer
TSC [Taiwan Semiconductor Company, Ltd]
Datasheet
TS34063A
General Description
The TS34063A is a monolithic switching regulator and subsystem intended for use as DC to DC converter. It contains an
internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active peak current limit
circuit, drive and a high current output switch.
The TS34063A is specifically designed to be incorporated in step-up, step-down and voltage inverting converter
applications.
The TS34063A is offered in SOP-8 and DIP-8 package.
Features
Applications
Block Diagram
Power forward control circuit
Operating voltage form 3V to 40V
Low standby current
Current limit adjustable
Output switch current up to 1.5A
Variable oscillator frequency up to 100KHz (max)
Output voltage adjustable
Charger
xD-ROM, xDSL product
DC to DC converter s
Pin assignment:
1. SC
2. SE
3. CT
4. Gnd
5. Comp.
6. Vcc
7. Ipk
8. Vdriver
Dc to Dc Converter Controller
1-8
TS34063AA
Pin Descriptions
Ordering Information
TS34063ACD
TS34063ACS
Part No.
Vdriver
Name
Comp.
Oscillator Frequency up to 100KHz
Gnd
Vcc
Supply Voltage Range 3 V to 40V
SC
SE
CT
Ipk
Output Driving Current 1.5A
Switch Collector
Switch Emitter
Timing Capacitor
Ground
Comparator Inverting Input
Vcc Collector
Ipk Sense
Driver
Operating Temp.
-20 ~ +85
(Ambient)
2005/02 rev. A
Description
o
C
Package
SOP-8
DIP-8

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TS34063A Summary of contents

Page 1

... General Description The TS34063A is a monolithic switching regulator and subsystem intended for use converter. It contains an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active peak current limit circuit, drive and a high current output switch. The TS34063A is specifically designed to be incorporated in step-up, step-down and voltage inverting converter applications ...

Page 2

... Darlington configuration, since the output switch cannot saturate non-Darlington configuration is used, the following output drive condition is recommended: Forced Bata of output switch: Ic output / (Ic driver – 7mA*) > The 100ohm resistor in the emitter of the driver divide requires about 7mA before the output switch conducts. TS34063A ...

Page 3

... Circuit Description TS34063A 3-8 2005/02 rev. A ...

Page 4

... Typical Application Circuit Test LINE REGULATION Load Regulation Output Ripple Efficiency Output Ripple with Optional Filter TS34063A Figure 7. Step Up Converter Conditions Vin= 8V~16V, Io= 175mA Vin= 12V, Io= 75mA to 175mA Vin=12V, Io= 175mA Vin=12V, Io= 175mA Vin=12V, Io= 175mA 4-8 Results 30mV +/- 0.05% 10mV +/- 0.017% 400mVpp 87.7% 40mVpp 2005/02 rev. A ...

Page 5

... Typical Application Circuit (continues) Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple with Optional Filter TS34063A Figure 9. Step Down Converter Conditions Vin= 15V~25V, Io= 500mA Vin= 25V, Io= 50mA to 500mA Vin= 25V, Io= 500mA Vin= 25V, RL= 0.1ohm Vin= 25V, Io= 500mA ...

Page 6

... Typical Application Circuit (continues) Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple with Optional Filter TS34063A Figure 11. Voltage Inverting Converter Conditions Vin= 4.5V~6.0V, Io= 100mA Vin= 5V, Io= 10mA to 100mA Vin= 5V, Io= 100mA Vin= 5V, RL= 0.1ohm Vin= 5V, Io= 100mA ...

Page 7

... Vripple(p-p): Desired peak-to-peak output ripple voltage. in practice, the calculated capacitor value will need to be increased due to its equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the line and load regulation. TS34063A Step Down Vin ...

Page 8

... TS34063A SOP-8 Mechanical Drawing DIM DIP-8 Mechanical Drawing DIM 8-8 SOP-8 DIMENSION MILLIMETERS INCHES MIN MAX MIN A 4.80 5.00 0.189 B 3.80 4.00 0.150 1.35 1.75 0.054 0.35 0.49 0.014 F 0.40 1.25 0.016 1.27 (typ) 0.05 (typ) K 0.10 0.25 0.004 ...

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