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KK34063AN Datasheet

  • KK34063AN

  • DC-TO-DC CONVERTER CONTROL CIRCUITS

  • 11頁

  • KODENSHI

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TECHNICAL DATA
DC-TO-DC CONVERTER CONTROL CIRCUITS
KK34063A
The
KK34063A
is a monolithic control circuit containing the primary functions required for DC-to-DC converters.
These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator
with an active current limit circuit, driver and high current output switch. This series was specifically designed to be
incorporated in Step-Down and Step-Up and Voltage-Inverting applications with a minimum number of external
components.
FEATURES
FUNCTIONAL BLOCK DIAGRAM
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Operation from 3.0 V to 40 V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5 A
Output Voltage Adjustable
Frequency Operation to 100 kHz
Precision 2% Reference
MAXIMUM RATINGS
Rating
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (Vpin 1 = 40 V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (Note 1)
Switch Current
Power Dissipation and Thermal Characteristics
Ceramic Package, U Suffix T
A
= +25擄C
Thermal Resistance
Plastic Package, P Suffix T
A
= +25擄C
Thermal Resistance
SOIC Package, D Suffix
TA
= +25擄C
Thermal Resistance
Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
Symbol
V
CC
V
IR
V
C(switch)
V
E(switch)
V
CE(switch)
I
C(driver)
I
C(driver)
I
SW
P
D
R
胃JA
P
D
R
胃JA
P
D
R
胃JA
TJ
Value
40
-0.3 to +40
40
40
40
40
100
1.5
1.25
100
1.25
100
625
160
+150
-40 to +85
-65to+150
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
A
W
擄C/W
W
擄C/W
mW 擄C/W
擄C
擄C
擄C
T
A
Tstg
1

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