TS34063A TSC [Taiwan Semiconductor Company, Ltd], TS34063A Datasheet - Page 2

• Manufacturer Part Number: TS34063A
• Description: Dc to Dc Converter Controller
• Manufacturer: TSC [Taiwan Semiconductor Company, Ltd]

Note: 1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
TS34063A
Absolute Maximum Rating
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
Operating Junction Temperature Range
Storage Temperature Range
Note: Maximum package power dissipation limits must be observed
Electrical Characteristics
Oscillator (OSC)
Frequency
Charge Current
Discharge Current
Discharge to Charge current ratio
Current Limit Sense Voltage
Output switch (note1)
Saturation Voltage
Saturation Voltage
DC current gain
Collector off-state current
Comparator
Threshold Voltae
Line regulation
Total device
Supply Current
2. If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (<=300mA)
* The 100ohm resistor in the emitter of the driver divide requires about 7mA before the output switch conducts.
Forced Bata of output switch: Ic output / (Ic driver – 7mA*) >= 10
temperature as possible
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:
Parameter
V
I
I
(V
Symbol
DISCHARGE
DISCHARGE
/ I
RegLine
V
V
I
IPK(SENSE)
CHARGE
I
CC
F
CHARGE
CE(SAT)
CE(SAT)
V
C(OFF)
H
I
OSC
REF
CC
FE
=5V, Ta =25
DIP-8
SOP-8
2-8
C
V
V
Pin7 to Vcc
I
I
I
I
Vce= 40V
V
V
pin7=Vcc, pin5>Vth,
pin2=Gnd, remaining pins
open
DISCHARGE
SW
SW
SW
T
CC
CC
CC
CC
= 1nF, Vpin5= 0V
= 1A, pin1,8 connected)
= 1A, Id=50mA
= 1A, Vce= 0.5V
= 5V ~ 40V
= 5V ~ 40V
= 3V ~ 40V
= 5V ~ 40V, C
Test Conditions
o
C; unless otherwise specified.)
= I
Vc(driver)
Ic(driver)
CHARGE
V
V
V
T
CE(SW)
V
V
C(SW)
E(SW)
I
Pd
T
SW
STG
CC
FB
J
T
= 1nF,
1.225
Min
250
24
-65 ~ +150
--
--
--
--
--
--
--
--
--
-0 ~ +125
- 0.3 ~ 40
2005/02 rev. A
100
1.5
1.0
0.5
40
40
40
40
40
Typ
0.45
0.01
1.25
200
6.5
1.0
1.6
33
30
75
--
--
1.275
Max
350
100
1.3
0.7
42
--
--
--
--
6
3
mA
o
o
W
V
V
V
V
V
V
A
C
C
Unit
KHz
mV
mV
mA
uA
uA
uA
--
V
V
--
V