MC34163

Features:

* Output Switch Current in Excess of 3.0 A
* Operation from 2.5 V to 40 V Input
* Low Standby Current
* Precision 2% Reference
* Controlled Duty Cycle Oscillator
* Driver with Bootstrap Capability for Increased Efficiency
* CyclebyCycle Current Limiting
* Internal Thermal Shutdown Protection
* Low Voltage Indicator Output for Direct Microprocessor Interface
* Heat Tab Power Package


Pinout




Specifications

Rating	Symbol	Value	Unit
Power Supply Voltage	VCC	40	V
Switch Collector Voltage Range	VC(switch)	1.0 to + 40	V
Switch Emitter Voltage Range	VE(switch)	2.0 to VC(switch)	V
Switch Collector to Emitter Voltage	VCE(switch)	40	V
Switch Current (Note 1)	ISW	3.4	A
Driver Collector Voltage	VC(driver)	1.0 to +40	V
Driver Collector Current	IC(driver)	150	mA
Bootstrap Input Current Range (Note 1)	IBS	100 to +100	mA
Current Sense Input Voltage Range	VIpk (Sense)	(VCC7.0) to (VCC+1.0)	V
Feedback and Timing Capacitor Input Voltage Range	Vin	1.0 to + 7.0	V
Low Voltage Indicator Output VoltageRange	VC(LVI)	1.0 to + 40	V
Low Voltage Indicator Output Sink Current	IC(LVI)	10	mA
Thermal Characteristics P Suffix, DualInLine Case 648C Thermal Resistance, JunctiontoAir Thermal Resistance, JunctiontoCase(Pins 4, 5, 12, 13) DW Suffix, Surface Mount Case 751G Thermal Resistance, JunctiontoAir Thermal Resistance, JunctiontoCase(Pins 4, 5, 12, 13)	RJA RJC RJA RJC	80 15 94 18	/W
Operating Junction Temperature	TJ	+150	°C
Operating Ambient Temperature (Note 3)                                        MC34163                                        MC33163	TA	0 to +70 40 to + 85	°C
Storage Temperature Range	Tstg	65 to +150	°C

Description

The MC34163 series are monolithic power switching regulators that contain the primary functions required for dctodc converters. MC34163 series is specifically designed to be incorporated in stepup, stepdown, and voltageinverting applications with a minimum number of external components.

MC34163 series consist of two high gain voltage feedback comparators, temperature compensated reference, controlled duty cycle oscillator, driver with bootstrap capability for increased efficiency, and a high current output switch. Protective features consist of cyclebycycle current limiting, and internal thermal shutdown. MC34163 series also include a low voltage indicator output designed to interface with microprocessor based systems.

MC34163 series are contained in a 16 pin dualinline heat tab plastic package for improved thermal conduction.