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  Taiwan Semiconductor (TSMC) Electronic Components Datasheet  

TS34063 Datasheet

Dc to Dc Converter Controller

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SOP-8
DIP-8
TS34063
Dc to Dc Converter Controller
Pin Definition:
1. SC
5. Comp
2. SE
6. Vcc
3. CT
7. Ipk
4. Gnd
8. Vdriver
General Description
TS34063 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 TS34063 is specifically designed to be
incorporated in step-up, step-down and voltage inverting converter applications. TS34063 is offered in SOP-8 and
DIP-8 package
Features
Power forward control circuit
Operating voltage from 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
Pin Description
Name
SC
SE
CT
GND
COMP.
VCC
IPK
VDRIVER
Description
Switch Collector
Switch Emitter
Timing Capacitor
Ground
Comparator Inverting Input
VCC Collector
IPK Sense
Driver
Applications
Charger
xD-ROM, xDSL products
DC to DC converter
Ordering Information
Part No.
TS34063CD C3
TS34063CS RL
Package
DIP-8
SOP-8
Packing
50pcs / Tube
2.5Kpcs / 13” Reel
Absolute Maximum Rating
Parameter
Symbol
Supply Voltage
Comparator Input Voltage Range
Switch Collector Output Voltage
Switch Emitter Voltage
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (note 1)
Output Switching Current
Power Dissipation
DIP-8
SOP-8
VCC
VFB
VC(SW)
VE(SW)
VCE(SW)
VC(DRIVER)
IC(DRIVER)
ISW
PD
Operating Ambient Temperature Range
TOPR
Junction Temperature Range
TJ
Storage Temperature Range
TSTG
Note: Maximum package power dissipation limits must be observed
1/10
Maximum
40
- 0.3 ~ 40
40
40
40
40
100
1.5
1.0
0.5
-40 ~ +85
0 ~ +125
-65 ~ +150
Unit
V
V
V
V
V
V
mA
A
W
oC
oC
oC
Version: B13


  Taiwan Semiconductor (TSMC) Electronic Components Datasheet  

TS34063 Datasheet

Dc to Dc Converter Controller

No Preview Available !

TS34063
Dc to Dc Converter Controller
Electrical Characteristics (VCC =5V, Ta =25oC; unless otherwise noted.)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Oscillator (OSC)
Frequency
Charge Current
Discharge Current
Discharge to Charge current ratio
Current Limit Sense Voltage
Output switch (note1)
FOSC
ICHARGE
IDISCHARGE
IDISCHARGE
/ ICHARGE
VIPK(SENSE)
CT = 1nF, Vpin5= 0V
VCC = 5V ~ 40V
VCC = 5V ~ 40V
Pin7 to VCC
IDISCHARGE = ICHARGE
24 33 42 KHz
24 30 42 uA
140 200 260
uA
5.2 6.5 7.5
--
250 -- 350 mV
Saturation Voltage
Saturation Voltage
DC current gain
Collector off-state current
VCE(SAT) ISW= 1A, pin1, 8 connected
--
1.0 1.3
V
VCE(SAT) ISW= 1A, Id=50mA
-- 0.45 0.7
V
HFE ISW = 1A, VCE= 0.5V
50 75
--
--
IC(OFF)
VCE = 40V
-- 0.01 100 uA
Comparator
Threshold Voltage
Line regulation
Total device
VREF
REGLINE
VCC = 3V ~ 40V
1.225 1.25 1.275
-- -- 6
V
mV
VCC = 5V ~ 40V, CT = 1nF,
Supply Current
ICC
pin7= VCC, pin5> VTH,
pin2=Gnd, remaining pins
--
3
5 mA
open
Notes1: Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible
Note 2: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents
(<=300mA) and high driver currents (>=30mA), it may take up to 2uS for it to come out of saturation. This
condition will shorten the off time at frequencies >= 30KHz, and is magnified at high temperature. This
condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non-
darlington configuration is used, the following output drive condition is recommended: Forced Bata of
output switch: Ic output / (Ic driver – 7mA*) >= 10
* The 100ohm resistor in the emitter of the driver divide requires about 7mA before the output switch
conducts.
Block Diagram
2/10 Version: B13


Part Number TS34063
Description Dc to Dc Converter Controller
Maker Taiwan Semiconductor Company
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TS34063 Datasheet PDF






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