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PDF VM149B Data sheet ( Hoja de datos )
| Número de pieza | VM149B | |
| Descripción | 10Bit Current Sinking VCM Driver | |
| Fabricantes | SiTI | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de VM149B (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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VM149B
Version
Issue Date
File Name
Total Page
: A.001
: 2010/06/08
: SP-VM149B-A.001.doc
: 13
110mA, 10Bit Current Sinking VCM Driver
with I2C Interface
新竹市科學園區展業一路 9 號 7 樓之 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
1 page  
VM149B
Electrical Characteristic
Unless otherwise noted, TA= 25℃, VDD = 2.8 V and VCM ≈ 18Ω, 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.
2.4
-
-
-
0.5*VDD
-0.4
Parameters
DAC Resolution
-
DNL
-
INL -
Maximum
Output Sink Current
Zero Code
Output Sink Current
IS,max D[9:0]=3FF(*2)
IS,min D[9:0]=000(*2)
-
Output Offset Current IOS PS = L, SPS(*1)= H
-
Voltage Drop
ΔV ΔV = VSINK − VMVSS (*3)
(@ISINK = 80 mA)
-
Limit
Typ.
2.8
35
0.2
1.6
-
-
10
+/-0.7
+/-1.5
102
0.1
0.1
0.35
Max.
5.5
50
0.4
2.3
VDD+0.4
0.2*VDD
±1
±1
-
+/-1
+/-4
1
1
0.44
Unit
V
uA
mA
mA
V
V
uA
uA
Bits
LSB
LSB
mA
uA
uA
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
110mA, 10Bit Current Sinking VCM Driver with I2C Interface Version：A.001
未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.
Page4
5 Page 
VM149B
Application Notes
z The VM149B is a constant current driving IC for applications in Auto-Focus. The
supply voltage range VDD of VM149B is from 2.4V to 5.5V. The input range of
digital control pin PS, and digital I/O pins SCL and SDA, are defined such that
logic “High” is from 0.5*VDD to VDD+0.4V and logic “Low” is from –0.4V to
0.2*VDD. Therefore, the three digital pins are suitable controlled by 1.8V ISP.
z In order to ensure the stability of output current, a capacitance CL is suggested to
be installed between the two terminals of VCM. The suggested value of CL is in
the range of 0.1~0.22uF to match different VCMs.
110mA, 10Bit Current Sinking VCM Driver with I2C Interface Version：A.001
未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任
Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.
Page10
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet VM149B.PDF ] | |
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