TS34063_B13

TS34063
Dc to Dc Converter Controller
SOP-8
DIP-8
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
Pin Description
●
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
Charger
●
xD-ROM, xDSL products
●
DC to DC converter
Description
SC
SE
CT
GND
COMP.
VCC
IPK
VDRIVER
Switch Collector
Switch Emitter
Timing Capacitor
Ground
Comparator Inverting Input
VCC Collector
IPK Sense
Driver
Ordering Information
Applications
●
Name
Part No.
TS34063CD C3
TS34063CS RL
Package
Packing
DIP-8
SOP-8
50pcs / Tube
2.5Kpcs / 13” Reel
Absolute Maximum Rating
Parameter
Symbol
Maximum
Unit
Supply Voltage
VCC
40
V
Comparator Input Voltage Range
VFB
- 0.3 ~ 40
V
Switch Collector Output Voltage
VC(SW)
40
V
Switch Emitter Voltage
VE(SW)
40
V
Switch Collector to Emitter Voltage
VCE(SW)
40
V
Driver Collector Voltage
VC(DRIVER)
40
V
Driver Collector Current (note 1)
IC(DRIVER)
100
mA
ISW
1.5
A
Output Switching Current
Power Dissipation
DIP-8
PD
SOP-8
Operating Ambient Temperature Range
TOPR
Junction Temperature Range
TJ
Storage Temperature Range
TSTG
Note: Maximum package power dissipation limits must be observed
1/10
1.0
0.5
W
-40 ~ +85
o
0 ~ +125
o
C
-65 ~ +150
o
C
C
Version: B13
TS34063
Dc to Dc Converter Controller
Electrical Characteristics (VCC =5V, Ta =25oC; unless otherwise noted.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
CT = 1nF, Vpin5= 0V
24
33
42
KHz
ICHARGE
VCC = 5V ~ 40V
24
30
42
uA
Discharge Current
IDISCHARGE
VCC = 5V ~ 40V
140
200
260
uA
Discharge to Charge current ratio
IDISCHARGE
/ ICHARGE
Pin7 to VCC
5.2
6.5
7.5
--
Current Limit Sense Voltage
VIPK(SENSE)
IDISCHARGE = ICHARGE
250
--
350
mV
Oscillator (OSC)
Frequency
Charge Current
FOSC
Output switch (note1)
Saturation Voltage
VCE(SAT)
ISW = 1A, pin1, 8 connected
--
1.0
1.3
V
Saturation Voltage
VCE(SAT)
ISW = 1A, Id=50mA
--
0.45
0.7
V
ISW = 1A, VCE= 0.5V
50
75
--
--
VCE = 40V
--
0.01
100
uA
1.225
1.25
1.275
V
--
--
6
mV
DC current gain
Collector off-state current
HFE
IC(OFF)
Comparator
Threshold Voltage
Line regulation
VREF
REGLINE
VCC = 3V ~ 40V
Total device
VCC = 5V ~ 40V, CT = 1nF,
pin7= VCC, pin5> VTH,
Supply Current
ICC
-3
5
mA
pin2=Gnd, remaining pins
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 nondarlington 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
TS34063
Dc to Dc Converter Controller
Electrical Characteristics Curve
Fig 1. Output Switch ON-OFF TIME vs.
Oscillator Timing Capacitor
Fig 2. Timing Capacitor Wave Form
Fig 3. Oscillator Frequency vs. Timing Capacitor
Fig 4. Standby Supply Current vs. Supply Voltage
Fig 5. Current Limit Sense Voltage vs. Temperature
3/10
Version: B13
TS34063
Dc to Dc Converter Controller
Typical Application Circuit
Test
Conditions
Results
Line Regulation
Load Regulation
Output Ripple
Efficiency
Output Ripple with Optional Filter
VIN= 8V~16V, Io= 175mA
VIN = 12V, Io= 75mA to 175mA
VIN =12V, Io= 175mA
VIN =12V, Io= 175mA
VIN =12V, Io= 175mA
30mV = ± 0.05%
10mV = ± 0.017%
400mVpp
87.7%
40mVpp
Figure 7. Step Up Converter
4/10
Version: B13
TS34063
Dc to Dc Converter Controller
Typical Application Circuit (Continue)
Test
Conditions
Results
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple with Optional Filter
VIN= 15V~25V, Io= 500mA
VIN = 25V, Io= 50mA to 500mA
VIN =25V, Io= 500mA
VIN =25V, RL= 0.1mΩ
VIN =25V, Io= 500mA
VIN =25V, Io= 500mA
12mV = ±12%
3mV = ±0.03%
120mVpp
1.1A
83.7%
40mVpp
Figure 9. Step Down Converter
5/10
Version: B13
TS34063
Dc to Dc Converter Controller
Typical Application Circuit (Continue)
Test
Conditions
Results
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple with Optional Filter
VIN= 4.5V~6V, Io= 100mA
VIN = 5V, Io= 10mA to 100mA
VIN =5V, Io= 100mA
VIN =5V, RL= 0.1Ω
VIN =5V, Io= 100mA
VIN =5V, Io= 100mA
3mV = ±120.012%
0.022V = ±0.09%
500mVpp
910mA
62.2%
70mVpp
Figure 11. Voltage Inverting Converter
6/10
Version: B13
TS34063
Dc to Dc Converter Controller
Design Formula Table
Test
ton
toff
( ton+ toff )
CT
Ipk(switch)
Rsc
L(min)
Co
Step Up
Step Down
Voltage Inverting
Vout + Vf − Vin (min)
Vcc (min) − Vsat
1
f min
Vout + Vf
Vcc − Vsat − Vout
1
f min
| Vout | +Vf
Vcc − Vsat
1
f min
4.0 x 10
–5
ton
 ton

+ 1
toff


2Iout(max) 

4.0 x 10
–5
ton
2Iout(max)
4.0 x 10
–5
ton
 ton

+ 1
toff


2Iout(max) 



0.3


 Ipk ( switch) 


0.3


 Ipk ( switch) 


0.3


 Ipk ( switch) 
 Vin( min ) − Vsat 

 * ton( max )
 Ipk(switch) 
 Vin(min) − Vsat − Vout 

 * ton(max)
Ipk ( switch )


 Vin(min) − Vsat 

 * ton(max)
 Ipk ( switch) 
 Iout * ton 
 9

 Vripple( pp) 
 Ipk ( switch)(ton + toff ) 


8Vripple( pp)


 Iout * ton 
 9

 Vripple( pp) 
Terms and Definitions
Vsat = Saturation Voltage of the output switch.
Vf = Forward Voltage drop of the rectifier.
The following power supply characteristics must be chosen:
Vin= Normal input voltage
Vout: Desied Output voltage, |Vout| =1.25 (1+R2 / R1)
Iout : Desired output current.
fmin : Minimum desired output switching frequency at the selected values for Vin and Io.
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.
7/10
Version: B13
TS34063
Dc to Dc Converter Controller
SOP-8 Mechanical Drawing
DIM
A
B
C
D
F
G
K
M
P
R
SOP-8 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX.
4.80
5.00
0.189
0.196
3.80
4.00
0.150
0.157
1.35
1.75
0.054
0.068
0.35
0.49
0.014
0.019
0.40
1.25
0.016
0.049
1.27BSC
0.05BSC
0.10
0.25
0.004
0.009
0º
7º
0º
7º
5.80
6.20
0.229
0.244
0.25
0.50
0.010
0.019
Marking Diagram
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
L = Lot Code
8/10
Version: B13
TS34063
Dc to Dc Converter Controller
DIP-8 Mechanical Drawing
DIM
A
B
C
D
G
J
K
L
M
DIP-8 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
9.07
9.32
0.357
0.367
6.22
6.48
0.245
0.255
3.18
4.45
0.125
0.135
0.35
0.55
0.019
0.020
2.54 (typ)
0.10 (typ)
0.29
0.31
0.011
0.012
3.25
3.35
0.128
0.132
7.75
8.00
0.305
0.315
o
o
10
10
Marking Diagram
Y = Year Code
M = Month Code
(A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
L = Lot Code
9/10
Version: B13
TS34063
Dc to Dc Converter Controller
Notice
Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf,
assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, to
any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of
sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty,
relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose,
merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify TSC for any damages resulting from such improper use or sale.
10/10
Version: B13