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VM149F Dataheets PDF



Part Number VM149F
Manufacturers SiTI
Logo SiTI
Description 10Bit Current Sinking VCM Driver
Datasheet VM149F DatasheetVM149F Datasheet (PDF)

VM149F Version Issue Date File Name Total Page : A.002 : 2013-10-14 : SP-VM149F-A.002.doc : 12 120mA, 10Bit Current Sinking VCM Driver with I2C Interface 9 7 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 VM149F 120mA, 10-Bit Current Sinking VCM Driver with I2C Interface General Specifications The VM149F is a VCM (Voice Coil Motor) driver IC with I2C interface control that is capab.

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VM149F Version Issue Date File Name Total Page : A.002 : 2013-10-14 : SP-VM149F-A.002.doc : 12 120mA, 10Bit Current Sinking VCM Driver with I2C Interface 9 7 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Tel:886-3-5645656 Fax:886-3-5645626 VM149F 120mA, 10-Bit Current Sinking VCM Driver with I2C Interface General Specifications The VM149F is a VCM (Voice Coil Motor) driver IC with I2C interface control that is capable of programmable sinking output current. It has a built-in internal voltage reference and operates with a supply voltage range from 2.3V to 3.6V. The DAC is controlled by a signal transmit through a 2-wire I2C serial interface which operates in an I2C fast mode (400 kHz). The VM149F is designed for applications such as image stabilization, autofocus in camera phones, and other portable devices. Features and Benefits z Programmable sinking output current z I2C serial interface z DAC with 10-bit resolution z 2.3V – 3.6V power source z Selective Output Slew Rate Control (SRC) z Low voltage control for digital pin PS, SDA, and SCL z Power saving mode z Automatic power on reset z Ultra small package: WLCSP (0.805mm*1.295mm*0.35mm) Ordering Information Part Number VM149F Package WLCSP, 6Pin Marking TBD 120mA, 10Bit Current Sinking VCM Driver with I2C Interface Version:A.002 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page1 VM149F Terminology Resolution The DAC resolution is defined by the power factor of 2, which defines the number of distinct digitized levels. N-bit resolution -> 2N distinct digitized levels Differential Nonlinearity (DNL) error The variation in digitized step value away from 1 LSB by any two adjacent digitized levels, gain and offset errors removed. 120mA, 10Bit Current Sinking VCM Driver with I2C Interface Version:A.002 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page2 Pin Assignment TOP View VM149F Pin Number 1 2 3 4 5 6 Pin Name SINK VSS VDD SDA SCL PS Description Analog Output : Current Sink Pin Ground Pin Power Input Pin I2C Interface Data Line (Serial Data Line) I2C Interface Clock Line (Serial Clock Line) Digital Input: Power Saving Control (When PS=High, chip is disabled) (When PS=Low, chip is enabled) Absolute Maximum Ratings Unless otherwise noted, TA= 25℃ Characteristic Supply Voltage Input Signal Voltage Maximum Sink Current Operating Temperature Storage Temperature Symbol VDD VIN ISINK TOPR TSTG Rating -0.4 ~ 3.6 -0.4 ~ VDD+0.4 130 -40 ~ 85 -55 ~ 150 Unit V V mA °C °C 120mA, 10Bit Current Sinking VCM Driver with I2C Interface Version:A.002 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page3 VM149F Electrical Characteristic Unless otherwise noted, TA= 25℃, VDD = 2.8 V and VCM ≈ 32Ω, 460uH. Item Sym. Condition Power Supply Supply Voltage Supply Current ( IDD ) VDD IPS IDD0 IDD1 PS, SDA, SCL digital pin Input Voltage High Input Voltage Low VIH VIL Input Current High IIH Input Current Low IIL PS = High (chip is disabled) PS = Low, SPS(*1)= High PS = Low, SPS(*1)= Low - Min. 2.3 - 1.26 -0.4 Parameters DAC Resolution DNL INL - - Maximum Output Sink Current IS,max D[9:0]=3FF(*2) Zero Code Output Sink Current IS,min D[9:0]=000(*2) - Output Offset Current IOS PS = L, SPS(*1)= H - Voltage Drop ΔV ΔV = VSINK − VMVSS (*3) (@ISINK = 85 mA) - Limit Typ. Unit Max. 2.8 3.6 V < 1 uA < 1 uA 1.8 2.3 mA - VDD+0.4 V - 0.54 V ±1 uA ±1 uA 10 - Bits +/-0.7 +/-1 LSB +/-1.5 +/-4 LSB 120 mA 0.1 1 uA 0.1 1 uA 0.08 V Note: (*1): SPS (Soft Power Saving, 2nd standby mode): IC power saving mode, controlled by software. (*2): The value of sink current through pin SINK is set by D[9:0] linearly. (*3): VSINK is the voltage of SINK pin, and VMVSS is the voltage of motor driver VSS pin 120mA, 10Bit Current Sinking VCM Driver with I2C Interface Version:A.002 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page4 Block Diagram VM149F 120mA, 10Bit Current Sinking VCM Driver with I2C Interface Version:A.002 、、, Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. Page5 VM149F Data Format VM149F Write Mode In the writing mode, data is written to the VM149F and shifted into a 16-bit input register. After all 16 bits of data have been shifted in, a STOP signal is generated by master controller. The data in the input register is transferred to the DAC at the same time. 1 91 91 9 SCL SDA 0 0 0 1 1 0 0 W SPS 0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 S3 S2 S1 S0 START by MASTER FRAME 1 Serial Bus Address Byte ACK by 11-VM149 FRAME 2 Most Significant Data Byte ACK by 11-VM149 FRAME 3 Least Significant Data Byte ACK by STOP by 11-VM149 MASTER VM149F Read M.


VM149E VM149F 11-VM148


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