G2028 Global Mixed-mode Technology 5+1CH serial input motor driver IC for DSC Features General Description Built-in 4 full-swing/constant voltage drivers 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. 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 Ordering Information ORDER NUMBER MARKING G2028K11U 2028 Note: K1: TQFN4X4-32 1: Bonding Code U: Tape & Reel TEMP. RANGE PACKAGE (Green) -20°C to +85°C TQFN4X4-32 Applications Stepping motor driver/ DC motor driver for DSC OUT1B IN2A IN2B RESET OUT5A 28 26 25 GND 29 27 IN1A IN1B 31 30 OUT1A 32 Pin Configurations 1 24 RNF5 VM12 2 23 OUT5B OUT2A 3 22 VM45 OUT2B 4 Thermal Pad 21 OUT4A CH1~3: CV/FS 20 RNF4 CH4 :CC/CV/FS 16 PI3 SCLK 15 PI2 IN6 17 13 8 14 SDAT IN4 PI1 IN5 18 12 7 IN3 OUT3B 11 OUT4B 10 19 SLD 6 VCC OUT3A 9 VM3 5 CH5 :CC/FS G2028 TQFN4X4-32 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. Ver: 0.1 Jun 19, 2012 TEL: 886-3-5788833 http://www.gmt.com.tw 1