2
System Logic
Semiconductor
SLS
SL34063A
ORDERING INFORMATION
Device Temperature Range
Package
34063AD 0° to +70°C SO-8
34063AP1 Plastic DIP
ELECTRICAL CHARACTERICISTICS
(V
CC
= 5.0 V, T
A
= 0 to +70
o
C unless otherwise specified.)
Characteristics Symbol Min Typ Max Unit
OSCILLATOR
Frequency (V
Pin 5
= 0 V, C
T
= 1.0 nF, T
A
= 25°C) fosc 24 33 42 kHz
Charge Current (V
CC
= 5.0 V to 40 V, T
A
= 25°C) Ichg 24 33 42 µA
Discharge Current (V
CC
= 5.0 V to 40 V, T
A
= 25°C) Idischg 140 200 260 µA
Discharge to Charge Current Ratio (Pin7 to Vcc, T
A
=25°C)
Idischg/Ichg 5.2 6.2 7.5 —
Current Limit Sense Voltage (Ichg = Idischg, T
A
= 25°C)
Vlpk(sense) 250 300 350 mV
OUTPUT SWITCH (Note 3)
Saturation Voltage, Darlington Connection (I
SW
= 1.0 A,
Pins 1, 8 connected)
V
CE
(sat) — 1.0 1.3 V
Saturation Voltage (I
SW
= 1.0 A, R
Pin 8
= 82 Ω to V
CC
.
Forced β = 20)
V
CE
(sat) — 0.45 0.7 V
DC Current Gain (I
SW
= 1.0 A, V
CE
=
5.0 V, T
A
= 25°C) h
FE
50 120 — —
Collector Off-State Current (V
CE
= 40V) I
C
(off) — 0.01 100 µA
COMPARATOR
Threshold Voltage (T
A
= 25°C)
(T
A
= T
LOW
to T
HIGH
)
Vth 1.225
1.21
1.25
—
1.275
1.29
V
Threshold Voltage (T
A
= 25°C) **
Vth 1.2375
1.25
1.2625 V
Threshold Voltage Line Regulation (V
CC
= 3 0 V to 40 V)
Regime 1.4 5.0 mV
Input Bias Current (Vin=0V)
I
IB
— -40 -400 nA
TOTAL DEVICE
Supply Current (V
CC
= 5 0 V to 40 V, C
T
= 1 0 nF, V
pin7
= V
CC
.
V
Pin5
> Vth, Pin 2 = Gnd, Remaining pins open)
I
CC
2.5 4.0 mA
NOTES:
1. Maximum package power dissipation limits must be observed.
2.Low duty cycle pulse techniques are used during test to maintain Junction temperature as close to ambient temperature as
possible
3.If the output switch is driven into hard saturation (non Darlington configuration) at low switch currents (< 300 mA) and high
driver currents (>30 mA), it may take up to 2.0 µs to come out of saturation This condition will shorten the off' time at
frequencies > 30 kHz, and is magnified at high temperatures 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 β of output switch = I
C
, output/(Ic, driver -7.0 mA*) > 10
*The 100 Ω. resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts
**Possible version for shipment
Pin connection
