AIMTRON AT5510N-GRE

AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Features
General Description
• 120mA current sink.
• 2-wire (I2C-compatible) serial interface
• 10-bit resolution
• Integrated current sense resistor
• 2.7V to 3.6V power supply
• Power-down mode
• Power-down to 0.5µA typical
• Power-on reset
• DFN-8 & WLCSP package
The AT5510 is a single 10-bit DAC with 120mA
output current sink capability. It operates from
2.7V to 5.5V supply. The DAC is controlled via
2-wire (I2C-compatible) serial interface that
operates at clock rates up to 400KHz.
Applications
• Auto-focus of camera modules
• Shutters
• Lens covers
• Image stabilization
The AT5510 provides a power-down mode. The
power-down mode can be enabled by PD pin or
I2C interface. At power-down mode, the output
current reduces to 1µA maximum.
The AT5510 is designed for autofocus, image
stabilization, and optical zoom applications in
camera modules.
The AT5510 is available in DFN-8 or WLCSP
package.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
1
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Pin Configuration
AGND
VCC
DGND
DGND
SDA
SCL
PD
SINK
DFN-8
SDA
SCL
AGND
VCC
SINK
PD
WLCSP
Ordering Information
Part number
AT5510N_GRE
AT5510G_PBF
Package
DFN-8, Green
WLCSP-6, PBF
Marking
5510,▲▲▲▲▲▲
MA△
▲▲▲▲▲▲: Date Code
△:serial number
*For more marking information, contact out sales representative directly
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
2
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Pin Description
DFN-8
Symbol
Pin No.
PD
DGND
SDA
SCL
DGND
VCC
AGND
SINK
1
2
3
4
5
6
7
8
Descript
Power down control pin
Digital power ground
I2C interface signal input
I2C interface signal input
Digital power ground
Power supply
Analog power ground
Output current sink
WLCSP-6
Symbol
Pin No.
PD
SDA
SCL
SINK
AGND
VCC
A1
A2
A3
B1
B2
B3
Descript
Power down control pin
I2C interface signal input
I2C interface signal input
Output current sink
Analog power ground
Power supply
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
3
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Absolute Maximum Ratings *1
(Ta=+250C)
Parameter
Condition
Power Supply Voltage, VCC
AGND to DGND
SCL, SDA to DGND
PD to DGND
SINK to AGND
Output Sink Current
Thermal Resistance from Junction
to Ambient θJA *2
—
—
—
—
—
—
DFN-8
Rated Value
Min.
Max.
-0.3
+6.0
-0.3
+0.3
-0.3
VCC
-0.3
VCC
-0.3
VCC+0.3
-120
-50
WLCSP(4-Layer PCB)
--
TBD
—
—
—
HBM
MM
-40
-65
--
+85
+150
150
Operating temperature TA
Storage temperature
Junction temperature TJ, MAX
ESD Susceptibility *3
2
200
Unit
V
V
V
V
V
mA
0
C/W
0
C/W
0
C
C
0
C
KV
V
0
1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other
conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure
to absolute maximum rating conditions for extended periods may affect device reliability.
2. The accuracy of θJA will be based on PC board layout. See details of “Thermal Considerations” in
Application Information.
3. Devices are ESD sensitive. Handling precaution recommended. The Human Body model is a 100pF
capacitor discharged through a 1.5KΩ resistor into each pin.
Recommended Operating Conditions
(Ta=+250C)
Parameter
Power supply voltage
SCL, SDA voltage
PD voltage
Operating temperature*
Symbol
VCC
VSCL
VSDA
VPD
TA
Values
Unit
Min.
2.5
Typ.
--
Max.
5.5
V
--
--
VCC
V
--20
-+25
VCC
+85
V
°C
*Using X5R or X7R input capacitors.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
4
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Electrical Characteristics
(VCC= 2.7~3.6V,Ta =+25℃ , unless otherwise noted. )
Parameter
Power Supply
Power supply *1
Input current *2
Symbol
VCC
ICC
ICCPD
Condition
ISINK,PD PD=1
To 10% of FS, coming out of
power-down mode
Unit
Min.
Typ.
Max.
2.7
-2.3
0.5
3.6
3
2
V
mA
µA
---
3
120
---
mA
mA
--
80
--
nA
--
200
--
µs
PD=1
Output Characteristics
Min. sink current
ISINK,MIN
Max. sink current
ISINK,MAX
Output current during
PD
Values
Power-up time
tPU
PD Input
Input current
IPD
--
--
±1
µA
H level input voltage
VPDH
1.26
--
VCC
+0.3
V
L level input voltage
SCA, SDL Input *3
VPDL
-0.3
--
0.54
V
H level input voltage
VINH
1.26
--
VCC
+0.3
V
L level input voltage
Input current
VINL
IIN
-0.3
--
---
0.54
±1
V
µA
Input hysteresis
VSYST
0.05*
VCC
--
--
V
--
--
50
ns
10 bits resolution
117uA/LSB
---
117
10
±1.5
--±4
µA
Bits
LSB
Guaranteed monotonic over
all codes
--
--
±1
LSB
------
0
0.5
±0.6
10
±0.2
------
mA
mA
% of
µA/°C
LSB/°C
Glitch rejection
DC Performance
Least significant bit
Resolution
Integral nonlinearity
LSB
-INL
Differential nonlinearity
DNL
Zero code error
Offset error @Code 16
Gain error
Offset error drift *3
Gain error drift *3
-Ios
----
All 0s loads to DAC
1. The maximum of VCC can achieve up to 5.5V. But if VCC is over 3.6V, the total electrical characteristics
may not meet the specification above.
2. ICC specification is valid for all DAC codes.
3. Guaranteed by design and characterization.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
5
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Typical Application Circuit
VCC
2.7V~3.6V
6
10uF
/6.3V
VCM
VCC
SINK
0.1uF
1
ENABLE
PD
AT5510
SDA
3
SCL
4
I2C MASTER
DEVICE
AGND
SDA
DGND
SCL
DGND
8
7
5
2
I2C SLAVE
DEVICE
Figure 1
The output current can be set as
ISINK = Ios + CODE * LSB,
where ISINK is output driving current, Ios is the offset error and CODE is the data bits
(D0-D9) shown in Table 2.
The popular examples are shown in Table 1.
Table 1: Code transfers to ISINK
CODE
Serial Data Bit
ISINK (mA)
33
0x180210
4.36
252
0x180FC0
29.98
765
0x182FD0
90.01
1023
0x183FF0
120.19
* Ios=0.5mA, LSB=117µA.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
6
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Terminology
z
Resolution
Resolution of DAC is the number of bits to present the analog output signal.
z
Integral nonlinearity (INL)
Integral nonlinearity is a measurement of the maximum deviation, in LSB, from a straight line
passing through the endpoints of the DAC transfer function. A typical INL vs. code plot is shown in
Figure 3.
z
Differential nonlinearity (DNL)
Differential nonlinearity is the difference between the measured and ideal 1 LSB change by any
two adjacent code. A typical DNL vs. code plot is shown in Figure 4.
z
Zero-code error
Zero-code error is a measurement of the output error when zero code (0x0000) is loaded to the
DAC register. The zero-code error is positive in AT5510.
z
Gain error
Gain error is a measurement of the span error of the DAC. It is the deviation in slope of the DAC
transfer characteristic from the ideal, expressed as percent of the full-scale range.
z
Offset error
Offset error is a measurement of the difference between actual output current (ISINK) and ideal
output current (Io). It is measured on the AT5510 with Code 16 loaded into the DAC register.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
7
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Application Information
Power-down mode
AT5510 can be operated in power-down mode when PD pin is at high voltage level
(1.26V~VCC) or soft power-down enable. The PD bit (R15) of input register in serial
data can be written 1 to power down or 0 to enable AT5510.
Table 2: Power-down mode
DATA BYTE
Bit 15 = 1
DATA BYTE
Bit 15 = 0
PD = H
PD = L
Power-down
Power-down
Power-down
Power-up
Serial Interface Data Form
The AT5510 is controlled using I2C 2-wire serial protocol. Data can be written to or
read from the DAC at data rates up to 400KHz. The address byte consists of a 7-bit
address plus a read/write bit shown in Figure 5. The address of the AT5510 is 0001100.
The read/write bit is 0 if data is written to the AT5510, and 1 if data is read from the
AT5510.
The data byte has 16-bit shown in table 3, but not all bits of the input register data are
used. The Bit 15 is power-down function; Bit 14 is unused; Bit 13 to Bit 4 correspond
to the DAC data bits; Bit 3 to Bit 0 are unused.
The details about write and read operation are shown in Figure 5 and 6, respectively.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
8
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Figure 5: Write operation
Figure 6: Read operation
Table 3: Data format
Serial Data-Words
Serial Data Bits
Input Register
Function
Serial Data-Words
Serial Data Bits
Input Register
Function
SD7
R15
PD
SD6
R14
--
SD5
R13
D9
SD7
R7
D3
SD6
R6
D2
SD5
R5
D1
High Byte
SD4
SD3
R12
R11
D8
D7
Low Byte
SD4
SD3
R4
R3
D0
--
SD2
R10
D6
SD1
R9
D5
SD0
R8
D4
SD2
R2
--
SD1
R1
--
SD0
R0
--
* PD = soft power-down; -- = don’t care; D9 to D0 =DAC data.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
9
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Package Outline : DFN-8
SYMBOL
A
A3
b
D
D1
E
E1
e
L
MILLIMETERS
MIN
MAX
0.75
0.90
0.203 BSC.
0.25
0.35
3.00 BSC.
2.20
2.40
3.00 BSC.
1.40
1.60
0.65 BSC.
0.30
0.40
NOTES
-
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
10
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Package Outline : WLCSP
SYMBOL
A
A1
A2
b
E
D
D1
E1
ZD
ZE
DIMENSION(mm)
MIN
NOM MAX
0.45
0.5
0.55
0.09
0.1
0.11
0.35
0.4
0.45
0.29
0.3
0.31
1.38
1.42
1.46
1.2
1.24
1.28
0.5
0.5
0.35
0.19
NOTES
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
11
AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Reflow Profiles
Profile Feature
Sn-Pb Eutectic Assembly
Large Body
Small Body
Pkg. thickness
Pkg. thickness
<2.5mm or Pkg.
≥2.5mm or Pkg.
3
volume ≥350mm3 volume <350mm
Average ramp-up rate
(TL to TP)
Preheat
-Temperature Min(Tsmin)
-Temperature Max (Tsmax)
-Time (min to max)(ts)
Tsmax to TL
-Ramp-up Rate
Time maintained above:
-Temperature (TL)
-Time (tL)
Peak Temperature(TP)
Time within 5°C of actual Peak
Temperature (tP)
Ramp-down Rate
Time
25°C
to
Peak
Temperature
3°C/second max.
3°C/second max.
100°C
150°C
60-120 seconds
150°C
200°C
60-180 seconds
3°C/second max.
183°C
60-150 seconds
217°C
60-150 seconds
225+0/-5°C
10-30 seconds
240+0/-5°C
10-30 seconds
6°C/second max.
6 minutes max.
Pb-Free Assembly
Large Body
Small Body
Pkg. thickness
Pkg. thickness
<2.5mm or Pkg.
≥2.5mm or Pkg.
3
volume ≥350mm3 volume <350mm
245+0/-5°C
10-30 seconds
250+0/-5°C
20-40 seconds
6°C/second max.
8 minutes max.
*All temperatures refer to topside of the package, measured on the package body surface.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
9/20/2007 REV:0.2
Email: service@aimtron.com.tw
12