PJ34063
Dc To Converter Controller
T
h e P J 3 4 0 6 3 S eri es i s a m o n l t h i c co n t ro l circuit
containing the primary functions required for DC to
of
an
internal
circuit,
step-
DIP -8
SOP -8
DC onverters. These devices consist
duty cycle oscillator with an active current limit
specifically designed to be incorporated in step-up,
drive and a high current output switch. This series was
down and voltage-inverting applications with a minimum
number of external components. temperature compensated
reference,comparator,controlled
P in : 1. Switch Collector
3. Timing Capacitor
5. Comparator Inverting Input
7. IP K Sense
2. Switch Emitter
4. Gnd
6. Vcc
8. Driver Collector
FEATURES
•
•
•
Operation from 3 to 40V input
Low standby current
Current limiting
Output switch current to 1.5A
Precision 2% reference
Output - voltage adjustable
Frequency of operation from 100Hz to 100KH
ORDERING INFORMATION
Device
PJ34063CD
PJ34063CS
Operating temperature
-20℃½+85℃
Packagge
DIP-8
SOP-8
•
•
•
•
BLOCK DIAGRAM
1-8
2002/01.rev.A
PJ34063
Dc To Converter Controller
ABSOLUTE MAXIMUM RATINGS
Characte ristic
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage
Switch Collector to Emitter Voltage
Driver Collector Voltage
Drive Collector Current (Note 1)
Switch Current
Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
Symbol
V
CC
V
IR
V
C(SW)
V
E(SW)
V
CE(SW)
V
C(drive)
I
C(drive)
Isw
T
J
T
A
Tstg
Value
40
-0.3 ~ +40
40
40
40
40
100
1.5
+150
-20 to +85
-65 to +150
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
A
℃
℃
℃
ELECTRICAL CHARACTERISTICS
(V
CC
= 5.0V. Ta= Tlow to Thigh. unless otherwise specified)
Characte ristic
OSCILLATOR
Frequency
Charging Current
Discharge Current
Discharge To Charge Current
Ratio
Current Limit Sense Voltage
OUTPUT SWITCH(NOTE 2)
Saturation Voltage , Darlington
Connection
Saturation Voltage , Darlington
Connection
DC Current Gain
Collector Off- State Current
COMPARATOR
Threshold Voltage
Threshold Voltage
Line Regulation
Input Bias Current
TOTAL DEVICE
Supply Current
Symbol
fosc
I
chg
I
dischg
I
dischg/
I
chg
V
IPK(sense)
V
CE(sat)
V
CE(sat)
h
FE
I
C(off)
V
TH
Regline
I
IB
I
CC
Te st Condition
V
PIN5
=0V, C
T
=1.0nF , T
A
=25℃
V
CC
=5 to 40V, T
A
=25℃
V
CC
=5 to 40V, T
A
=25℃
Pin7 to V
CC
, T
A
=25℃
I
chg
= I
dischg,
T
A
=25℃
Isw=1.0A, Pins1,8 connected
Isw=1.0A, R
PIN8
=82Ω to Vcc,
Forced
β≌20
Isw=1.0A, V
CE
= 5.0V, T
A
=25℃
V
CE
=40V
T
A
=25℃
V
CC
= 3 to 40V
V
IN
=0V
V
CC
=5 to 40V, C
T
=1.0nF,
Pin7=Vcc ,V
PIN
5>Vth
Pin 2 =GND, remaining pins
open
Min
24
24
140
5.2
250
Typ
33
35
220
6.5
300
Max
42
42
260
7.5
350
Unit
KHz
μA
μA
-
mV
-
-
50
-
1.23
1.0
0.45
75
40
1.25
1.4
-20
1.3
0.7
-
100
1.27
5.0
-400
4.0
V
V
-
μA
V
mV
nA
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.
2-8
2002/01.rev.A
PJ34063
Dc To Converter Controller
FIGURE 1.OUTPUT SWITCH ON-OFF TIME versus
OSCILLATOR TIMING CAPACITOR
FIGURE 2.TIMING CAPACITOR WAVEFORM
FIGURE 3.EMITTER FOLLOWER CONFIGURATION
OUTPUT SATURATION VOLTAGE versus EMITTER
CURRENT
FIGURE 4.COMMON EMITTER CONFIGURATION
OUTPUT SWITCH SATURATION VOLTAGE versus
COLLECTOR CURRENT
FIGURE 5.CURRENT LIMIT SENSE VOLTAGE
versus TEMPERATURE
FIGURE 6.STANDBY SUPPLY CURRENT versus
SUPPLY VOLTAGE
3-8
2002/01.rev.A
PJ34063
Dc To Converter Controller
FIGURE 1.STEP-UP CONVERTER
FIGURE 2.EXTERNAL CURRENT BOOST CONNECTIONS FOR Ic PEAK GREATER THAN 1.5A
2a.EXTERNAL NPN SWITCH
2b.EXTERNAL NPN SATURATED SWITCH
4-8
2002/01.rev.A
PJ34063
Dc To Converter Controller
FIGURE 3.STEP-DOWN CONVERTER
FIGURE 4.EXTERNAL CURRENT BOOST CONNECTIONS FOR Ic PEAK GREATER THAN 1.5A
4a.EXTERNAL NPN SWITCH
4b.EXTERNAL NPN SWITCH
5-8
2002/01.rev.A
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