TS34063

2-8

2003/12 rev. C

Absolute Maximum Rating

Supply Voltage

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

Vc(driver)

40

V

Driver Collector Current (note 1)

Ic(driver)

100

mA

Output Switching Current

1.5

A

Power Dissipation

DIP-8

SOP-8

Pd

1.0

0.5

W

Operating Junction Temperature Range

-0 ~ +125

Storage Temperature Range

-65 ~ +150

Note: Maximum package power dissipation limits must be observed

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Oscillator (OSC)

Frequency

24

33

42

KHz

Charge Current

--

30

--

uA

Discharge Current

--

200

--

uA

Discharge to Charge current ratio

Pin7 to Vcc

--

6.5

--

--

Current Limit Sense Voltage

250

--

350

mV

Output switch (note1)

Saturation Voltage

--

1.0

1.3

V

Saturation Voltage

--

0.45

0.7

V

DC current gain

--

75

--

--

Collector off-state current

Vce= 40V

--

0.01

100

uA

Comparator

Threshold Voltae

1.225

1.25

1.275

V

Line regulation

RegLine

--

--

6

mV

Total device

Supply Current

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.