AT5510 AIMTRON | Alldatasheet

Document overview

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Technical content

Features

  • 120mA current sink.
  • 2-wire (I 2C-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

Applications

  • Auto-focus of camera modules
  • Shutters
  • Lens covers
  • Image stabilization General Description 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 (I 2C-compatible) serial interface that operates at clock rates up to 400KHz. The A T5510 provides a power-down mode. The power-down mode can be enabled by PD pin or I 2C 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.

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Pin Configuration DFN-8 AGND SINK VCC PD DGND SDA SCL DGND WLCSP AGND VCC PD SDA SCL SINK

Ordering Information

Part number Package Marking AT5510N_GRE DFN-8, Green 5510,▲▲▲▲▲▲ AT5510G_PBF WLCSP-6, PBF MA△ △:serial number *For more marking information, contact out sales representative directly

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Pin Description DFN-8 WLCSP-6 Symbol Pin No. Descript PD 1 Power down control pin DGND 2 Digital power ground SDA 3 I 2C interface signal input SCL 4 I 2C interface signal input DGND 5 Digital power ground VCC 6 Power supply AGND 7 Analog power ground SINK 8 Output current sink Symbol Pin No. Descript PD A1 Power down control pin SDA A2 I 2C interface signal input SCL A3 I 2C interface signal input SINK B1 Output current sink AGND B2 Analog power ground VCC B3 Power supply

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Absolute Maximum Ratings *1 (Ta=+250C) Rated Value Parameter Condition Min. Max. Unit Power Supply V oltage, VCC — -0.3 +6.0 V AGND to DGND — -0.3 +0.3 V SCL, SDA to DGND — -0.3 VCC V PD to DGND — -0.3 VCC V SINK to AGND — -0.3 VCC+0.3 V Output Sink Current — -- 120 mA DFN-8 -- 50 0C/W Thermal Resistance from Junction to Ambient θJA *2 WLCSP(4-Layer PCB) -- TBD 0C/W Operating temperature TA — -40 +85 0C Storage temperature — -65 +150 0C Junction temperature TJ, MAX — -- 150 0C HBM 2 KV ESD Susceptibility *3 MM 200 V 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) Values Parameter Symbol Min. Typ. Max. Unit Power supply voltage VCC 2.5 -- 5.5 Ｖ SCL, SDA voltage VSCL VSDA -- -- VCC Ｖ PD voltage VPD -- -- VCC Ｖ Operating temperature* T A -20 +25 +85 °C *Using X5R or X7R input capacitors.

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw

Electrical Characteristics

(VCC= 2.7~3.6V,Ta =+25℃ , unless otherwise noted. ) Values Parameter Symbol Condition Min. Typ. Max. Unit Power Supply Power supply *1 VCC 2.7 -- 3.6 V ICC 2.3 3 mA Input current *2 ICCPD PD=1 0.5 2 µA Output Characteristics Min. sink current I SINK,MIN -- 3 -- mA Max. sink current I SINK,MAX -- 120 -- mA Output current during PD ISINK,PD PD=1 -- 80 -- nA Power-up time t PU To 10% of FS, coming out o f power-down mode -- 200 -- µs PD Input Input current I PD -- -- ±1 µA H level input voltage V PDH 1.26 -- VCC +0.3 V L level input voltage V PDL -0.3 -- 0.54 V SCA, SDL Input *3 H level input voltage V INH 1.26 -- VCC +0.3 V L level input voltage V INL -0.3 -- 0.54 V Input current I IN -- -- ±1 µA Input hysteresis V SYST 0.05* VCC -- -- V Glitch rejection -- -- 50 ns DC Performance Least significant bit LSB 10 bits resolution -- 117 -- µA Resolution -- 117uA/LSB -- 10 -- Bits Integral nonlinearity INL ±1.5 ±4 LSB Differential nonlinearity DNL Guaranteed monotonic over all codes -- -- ±1 LSB Zero code error -- All 0s loads to DAC -- 0 -- mA Offset error @Code 16 Ios -- 0.5 -- mA Gain error -- -- ±0.6 -- % of Offset error drift *3 -- -- 10 -- µA/°C Gain error drift *3 -- -- ±0.2 -- LSB/°C 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.

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Typical Application Circuit VCC 2.7V~3.6V 6 10uF /6.3V 1ENABLE AT5510 SINK 8 VCM AGND DGNDSDA PD VCC 0.1uF 2DGNDSCL4 I2C MASTER DEVICE I2C SLAVE DEVICE SDA SCL 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 33 252 765 1023 Serial Data Bit 0x180210 0x180FC0 0x182FD0 0x183FF0 ISINK (mA) 4.36 29.98 90.01 120.19 * Ios=0.5mA, LSB=117µA.

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw 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 (0x00 00) 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 (I SINK) and ideal output current (Io). It is measured on the AT5510 with Code 16 loaded into the DAC register.

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw

Application Information

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 PD = H PD = L DATA BYTE Bit 15 = 1 Power-down Power-down DATA BYTE Bit 15 = 0 Power-down Power-up Serial Interface Data Form The AT5510 is controlled using I 2C 2-wire serial protocol. Data can be written to or read from the DAC at data rates up to 400 KHz. 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.

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Package Outline : DFN-8 MILLIMETERS SYMBOL MIN MAX NOTES A 0.75 0.90 - A3 0.203 BSC. - b 0.25 0.35 - D 3.00 BSC. - D1 2.20 2.40 - E 3.00 BSC. - E1 1.40 1.60 - e 0.65 BSC. - L 0.30 0.40 -

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Package Outline : WLCSP DIMENSION(mm) SYMBOL MIN NOM MAX NOTES A 0.45 0.5 0.55 A1 0.09 0.1 0.11 A2 0.35 0.4 0.45 b 0.29 0.3 0.31 E 1.38 1.42 1.46 D 1.2 1.24 1.28 D1 0.5 E1 0.5 ZD 0.35 ZE 0.19

Preliminary Product Information 120mA, Current Sinking, 10-bit I2C DAC for VCM Driver Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 9 / 2 0 / 2 0 0 7 R E V : 0 . 2 E m a i l : service@aimtron.com.tw Reflow Profiles Sn-Pb Eutectic Assembly Pb-Free Assembly Profile Feature Large Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm3 Small Body Pkg. thickness <2.5mm or Pkg. volume <350mm3 Large Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm3 Small Body Pkg. thickness <2.5mm or Pkg. volume <350mm3 Average ramp-up rate (TL to TP) 3°C/second max. 3 °C/second max. Preheat -Temperature Min(Tsmin) -Temperature Max (Tsmax) -Time (min to max)(ts) 100°C 150°C 60-120 seconds 150°C 200°C 60-180 seconds Tsmax to TL -Ramp-up Rate 3°C/second max. Time maintained above: -Temperature (TL) -Time (t L) 183°C 60-150 seconds 217°C 60-150 seconds Peak Temperature(TP) 225+0/-5°C 240+0/-5 °C 245+0/-5 °C 250+0/-5 °C Time within 5 °C of actual Peak Temperature (tP) 10-30 seconds 10-30 seconds 10-30 seconds 20-40 seconds Ramp-down Rate 6°C/second max. 6 °C/second max. Time 25 °C to Peak Temperature 6 minutes max. 8 minutes max. *All temperatures refer to topside of the package, measured on the package body surface.