MC34933EP

• Product Introduction

MC34933EP Dual H-bridge drivers, charge pumps

The 34933 is a dual-channel H-bridge driver designed to be used in the digital camera market. There are many applications, including automatic focus control of lenses for digital cameras. The 34933 uses Freescale's patented SMOS8 bidirectional CMOS process to provide a low-power device with a maximum quiescent current of 100uA for motor drive power and 400UA for control logic power. The 34933 uses a VCC detection circuit to detect the shutdown state with a maximum current of 1uA when the logic power switch is switched to extend the life of the battery. The 34933 also has an internal power MOSFET circuit for the H-bridge driver IC with thermal protection circuitry to avoid damage. --------------------------------------------------------------------------------Peculiarity-------------------------------------------------------------------------------- Built-in 2-channel H-bridge driver H-bridge operating voltage 2.0V to 7.0V output current 1.0A @ TA=25°C Low total RDS(ON) 0.8Ω (typical), 1.0Ω (max) @TA=25°C dual-channel parallel driver, RDS(ON) 0.4Ω (typical). Maximum DC current: 1.4APWM, control input frequency up to 200 kHz, built-in pass-through current protection circuit, built-in charge pump circuit (external cap type), logic supply voltage, VCC low voltage detection, thermal detection of H-bridge driver

Microchip Centennial Electronic Technology---specializedsensorexpert