TS34063
2-8
2003/12 rev. C
Absolute Maximum Rating
Supply Voltage
V
CC
V
FB
V
C(SW)
V
E(SW)
V
CE(SW)
Vc(driver)
40
V
Comparator Input Voltage Range
- 0.3 ~ 40
V
Switch Collector Output Voltage
40
V
Switch Emitter Voltage
40
V
Switch Collector to Emitter Voltage
40
V
Driver Collector Voltage
40
V
Driver Collector Current (note 1)
Ic(driver)
100
mA
Output Switching Current
I
SW
1.5
A
Power Dissipation DIP-8
SOP-8
Pd
1.0
0.5
W
Operating Junction Temperature Range
T
J
T
STG
-0 ~ +125
o
C
Storage Temperature Range
-65 ~ +150
o
C
Note: Maximum package power dissipation limits must be observed
Electrical Characteristics
(V
CC
=5V, Ta =25
o
C; unless otherwise specified.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Oscillator (OSC)
Frequency
Charge Current
Discharge Current
F
OSC
I
CHARGE
I
DISCHARGE
I
DISCHARGE
/ I
CHARGE
V
IPK(SENSE)
C
T
= 1nF, Vpin5= 0V
V
CC
= 5V ~ 40V
V
CC
= 5V ~ 40V
24
--
--
33
30
200
42
--
--
KHz
uA
uA
Discharge to Charge current ratio
Pin7 to Vcc
--
6.5
--
--
Current Limit Sense Voltage
Output switch (note1)
I
DISCHARGE
= I
CHARGE
250
--
350
mV
Saturation Voltage
V
CE(SAT)
I
SW
= 1A, pin1,8 connected)
--
1.0
1.3
V
Saturation Voltage
V
CE(SAT)
H
FE
I
C(OFF)
I
SW
= 1A, Id=50mA
I
SW
= 1A, Vce= 0.5V
Vce= 40V
--
0.45
0.7
V
DC current gain
Collector off-state current
Comparator
Threshold Voltae
--
--
75
0.01
--
--
uA
100
V
REF
RegLine
1.225
1.25
1.275
V
Line regulation
V
CC
= 3V ~ 40V
--
--
6
mV
Total device
Supply Current
I
CC
V
CC
= 5V ~ 40V, C
T
= 1nF,
pin7=Vcc, pin5>Vth,
pin2=Gnd, remaining pins
open
--
3
5
mA
Note: 1. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible
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.