UNIVERSAL DC/DC CONVERTER
FSP34063
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
IR
V
C(switch)
V
E(switch)
V
CE(switch)
V
C(driver)
I
C(driver)
I
SW
P
D
θ
JA
P
D
θ
JA
T
J
T
A
Parameter
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage(VPin1=40V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current(Note1)
Switch Current
SOP8L: T
A
=25℃
Thermal Resistance
Power Dissipation and Thermal
Characteristics
PDIP8L: T
A
=25℃
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
Rating
40
-0.3~+40
40
40
40
40
100
1.6
600
160
1.25
100
+150
0~+70
-40~+85
-65~+150
Unit
V
V
V
V
V
V
mA
A
mW
℃/W
W
℃/W
℃
℃
℃
Tstg
Storage Temperature Range
Notes: 1.Maximum package power dissipation limits must be observed.
2.ESD data available upon request.
ELECTRICAL CHARACTERISTICS(V
CC
=5V, UNLESS OTHERWISE NOTED)
Symbol
Parameter
Oscillator section
fosc
Frequency
Ichg
Charge Current
Idischg
Discharge Current
Discharge to Charge
Idischg/Ichg
Current Ratio
Current Limit Sense
Vipk(sense)
Voltage
Output switch section
Saturation Voltage,
V
CE(sat)
Darlington Connection
Saturation Voltage,
V
CE(sat)
Darlington Connection
hFE
DC Current Gain
Collector Off-State
I
C(off
)
Current
Comparator section
Threshold Voltage
Vth
Reg(line)
Total device
V
CC
=5.0V to 40V, C
T
=1.0nF,
3.5
mA
I
CC
Supply Current
Pin7=V
CC
, VPin5＞Vth, Pin2=Gnd,
remaining pins open
Note: 3.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient
temperature as possible.
4.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 2.0µs for it to come out of saturation. This condition will
shorten the off time at frequencies≥30kHz, 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
2/10
2007-1-25
Test Conditions
VPin 5=0V, C
T
=1.0nF, T
A
=25℃
V
CC
=5.0V to 40V, T
A
=25℃
V
CC
=5.0V to 40V, T
A
=25℃
Pin7 to Vcc, T
A
=25℃
Ichg=Idischg, T
A
=25℃
I
SW
=1.0A, Pins 1,8 connected
I
SW
=1.0A, I
D
=50mA, Forced
β120
I
SW
=1.0A, V
CE
=5.0V, T
A
=25℃
V
CE
=40V
T
A
=25℃
T=0℃~75℃
V
CC
=3.0V to 40V
Min.
24
24
140
5.2
300
Typ.
33
30
200
6.5
400
1.0
0.45
Max.
42
42
260
7.5
450
1.3
0.7
100
1.275
1.29
6.0
Unit
kHz
µA
µA
mV
V
V
µA
V
mV
50
75
0.01
1.225
1.21
1.25
1.4
Threshold Voltage Line
Regulation
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