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Document overview
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Technical content
Features
Built-in 4 full-swing/constant voltage drivers switched by serial control with brake function Built-in 2 constant current drivers for shutter or IRIS Low on-resistance (1.2Ω, sum of on-resistance of up side and bottom side) Output current：IOUT<=0.8A(max.) for each channel Built-in thermal shutdown (TSD, 150 °C) Built-in CC mode weak excitation CH1/2 corresponds to STM control of 2-2 phase or 1-2 phase Built-in exclusive control mode: CH13/23 Æ the combination control mode of 6CH is set All power supply systems (VCC, VM12, VM3, VM45) can be set up with an independent power supply Power save mode corresponds by serial control setup PI (photo interrupter drive) 3 channel built-in. Small 32TQFN (4 ×4mm) is adopted
Applications
Stepping motor driver/ DC motor driver for DSC General Description G2028 is a 5+1-channel H-Bridge motor drivers IC for the digital camera and so on. It has four full-swing/constant voltage drivers and two full-swing/constant current drivers. G2028 can be operated in serial control mode or partial exterior control mode. When operating in partial exterior control mode, the mode of each CH is fixed by initial serial control setting. When operating in serial control mode, the mode of each driver can be setting by serial control.
Ordering Information
NUMBER MARKING TEMP. RANGE PACKAGE (Green) G2028K11U 2028 -20 °C to +85°C TQFN4X4-32 Note: K1: TQFN4X4-32 1: Bonding Code U: Tape & Reel Pin Configurations CH1~3: CV/FS CH4 :CC/CV/FS CH5 :CC/FS OUT1A IN1A IN1B IN2B Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. G2028 TQFN4X4-32 Thermal Pad OUT1B VM12 OUT2A OUT2B VM3 OUT3A OUT3B SDAT OUT5B VM45 OUT4A RNF4 OUT4B PI1 PI2 IN2A RESET OUT5A SCLK SLD VCC IN3 IN4 IN5 IN6 PI3 RNF5 GND OUT1A IN1A IN1B IN2B Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. G2028 TQFN4X4-32 Thermal Pad OUT1B VM12 OUT2A OUT2B VM3 OUT3A OUT3B SDAT OUT5B VM45 OUT4A RNF4 OUT4B PI1 PI2 IN2A RESET OUT5A SCLK SLD VCC IN3 IN4 IN5 IN6 PI3 RNF5 GND