型号: 34063AD
厂商: IK Semicon Co., Ltd IK Semicon Co., Ltd
描述: DC-TO-DC converter control circuits
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TECHNICAL DATA  
DC-TO-DC CONVERTER CONTROL CIRCUITS  
IL34063A  
The IL34063A 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  
· 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  
Symbol  
VCC  
Value  
40  
Unit  
Vdc  
Comparator Input Voltage Range  
Switch Collector Voltage  
Switch Emitter Voltage (Vpin 1 = 40 V)  
Switch Collector to Emitter Voltage  
Driver Collector Voltage  
VIR  
-0.3 to +40 Vdc  
VC(switch)  
VE(switch)  
VCE(switch)  
IC(driver)  
IC(driver)  
ISW  
40  
Vdc  
Vdc  
Vdc  
Vdc  
mA  
A
40  
40  
40  
Driver Collector Current (Note 1)  
Switch Current  
100  
1.5  
Power Dissipation and Thermal Characteristics  
Ceramic Package, U Suffix TA = +25°C  
Thermal Resistance  
Plastic Package, P Suffix TA = +25°C  
Thermal Resistance  
PD  
RqJA  
PD  
RqJA  
PD  
RqJA  
TJ  
1.25  
100  
1.25  
100  
625  
160  
W
°C/W  
W
°C/W  
mW °C/W  
SOIC Package, D Suffix TA = +25°C  
Thermal Resistance  
Operating Junction Temperature  
Operating Ambient Temperature Range  
Storage Temperature Range  
+150  
0 to +70  
-65to+150 °C  
°C  
°C  
TA  
Tstg  
Rev. 01