LN4913SRB

LN4913 Low Current Consumption, High Sensitivity CMOS Hall IC ■ General Description ■ Applications The LN4913 is an integrated hall-effect sensor designed  Cover switch in clam-shell cellular phones specifically to meet the requirements of low-power devices.  Cover switch in Notebook PC/PDA e.g. as an On/Off switch in Cellular Flip-Phones, with  Contact-less switch in consumer products battery operating voltages of 1.65V-5.5V. ■ Features Precise magnetic switching points and high temperature stability are achieved through the unique design of the  Micro power design internal circuit. An onboard clock scheme is used to reduce  1.65 V to 5.5 V battery operation the average operating current of the IC. During the operate  High sensitivity and high stability of the magnetic phase the IC compares the actual magnetic field detected switching points with the internally compensated switching points. The  High resistance to mechanical stress output Voltage is switched at the end of each operating  Digital output signal phase. During the Stand-by phase the output stage is  Switching for both poles of a magnet (omnipolar) latched and the current consumption of the device reduced  Not suitable for automotive application to some µA. ■ Package The IC switching behavior is Omni polar; it can be switched  SOT-23-3 on with either the North or South pole of a magnet.  TSOT-23-3 ■ Typical Application Circuit  TO-92S  DFN2015-6  DFN2*2-3 10K VDD LN4913 VOUT GND 1µF ■ Ordering Information Package Code Package Lot Number LN4913MR M SOT-23-3 13XY LN4913NR N TSOT-23-3 LN4913TR T LN4913SRA S Part Number Rev.1.0 — Jun. 13, 2012 Package Code Package Lot Number LN4913SRB S TO-92S XXXX 13XY LN4913ZRA Z DFN2015-6 13XY TO-92S XXXX LN4913LR L DFN2*2-3 13XY TO-92S XXXX 1 Part Number www.natlinear.com LN4913 ■ Pin Configuration SOT-23-3/TSOT-23-3 (TOP VIEW) GND 3 2 XY LN4913MR NC 1 VDD 2 GND 3 13XY 1 DFN2015-6 (TOP VIEW) Date Code VOUT Pin Number 6 NC 5 VOUT 4 Pin Name VDD 1 VOUT 2 13XY 13 VDD DFN2*2-3 (TOP VIEW) Marking Sensitive Area (感应区） 3 GND NC Function Description SOT-23-3/TSOT-23-3 DFN2015-6 DFNWB2×2-3L 2 5 2 VOUT Output Pin 3 3 3 GND Ground 1 2 1 VDD Supply Voltage - 4,6 - NC No Connection TO-92S (Front View) Sensitive Area (感应区） LN4913TR XXXX Ordering Name Package 3 2 1 Pin Name 1 2 3 Marking LN4913TR TO-92S VDD VOUT GND 4913 LN4913SRA TO-92S VOUT GND VDD 4913A LN4913SRB TO-92S VDD GND VOUT 4913B Rev.1.0 — Jun. 13, 2012 2 www.natlinear.com LN4913 ■ Function Block Diagram VDD 1 Bias and compensation circuits Oscillator & Sequencer Active Error Compensation Threshold Generator 3 Comparator With Hysteresis Decision Hall Probe + Logic Chopped Amplifer GND 2 Latch VOUT Values Unit -0.3-6.0 V -1-4.5 mA ■ Absolute Maximum Ratings Symbol Characteristics VDD Supply voltage IDD Operating current VOUT Output voltage -0.3-6.0 V IOUT Output current -1-2.0 mA -40～+150 °C TS Storage temperature range TJ Maximum junction temperature 150 °C ESD Protection 4000 V - ■ Electrical Characteristics AC/DC Characteristics Symbol (TA=+25℃,VDD=3.0V,Unless otherwise specified) Characteristic VDD Supply voltage ISAVG Averaged supply current ISOPAVG Conditions Min Type Max Unit — 1.65 — 6.0 V 1 3 10 uA 0.5 2.0 3.5 mA 4.5 mA 1.9 8 uA 0.13 0.4 V 0.01 1 uA Averaged current during operating time ISOPT Peak current during operating time ISSTB Supply current during standby time VQSAT Output Saturation Voltage IQLEAK Output on Leakage Current 1 IQ=1mA tr Output rise time RL=2.7KΩ CL=10pF 0.5 1 us rf Output fall time RL=2.7KΩ CL=10pF 0.1 1 us top Operating time 25 100 160 us tstb Standby time 60 140 240 ms top/tstb tstu Duty cycle 0.071 Start-up time of IC Rev.1.0 — Jun. 13, 2012 12 3 % 20 us www.natlinear.com LN4913 ■ Magnetic Characteristics (TA=+25℃,VDD=2.7V, Unless otherwise specified) Symbol Min Type Max Unit BOPS 2 3.5 5 mT BOPN -5 -3.5 -2 mT BRPS 1.2 2.7 4.2 mT BRPN -4.2 -2.6 -1.2 mT BHYS 0.2 0.8 1.6 mT Is Operating Time Isopavg Standby Time Isavg Isstb top tstb 100µs 130ms Latch Output t VOUT Output OFF VOUTH Output ON VOUTL BOPN 0 BRPN BRPS BOPS B VOUT as function of the applied B-Field Rev.1.0 — Jun. 13, 2012 4 www.natlinear.com LN4913 ■ Typical Operating Characteristics Rev.1.0 — Jun. 13, 2012 5 www.natlinear.com LN4913 Rev.1.0 — Jun. 13, 2012 6 www.natlinear.com LN4913 ■ Package  SOT-23-3 Rev.1.0 — Jun. 13, 2012 7 www.natlinear.com LN4913  TSOT-23-3 Rev.1.0 — Jun. 13, 2012 8 www.natlinear.com LN4913  TO-92S Rev.1.0 — Jun. 13, 2012 9 www.natlinear.com LN4913  DFN2015-6  DFN2*2-3 Rev.1.0 — Jun. 13, 2012 10 www.natlinear.com