Product Overview
The LN4913 is a low-power, high-sensitivity CMOS Hall-effect sensor IC designed for battery-operated devices. It functions as an On/Off switch, ideal for applications like cellular flip-phones, notebook PCs, and PDAs requiring contact-less switching. The device operates with a wide battery voltage range of 1.65V to 5.5V and features an omnipolar switching behavior, responding to both North and South poles of a magnet. Its micro-power design, with an onboard clock scheme, reduces average operating current by utilizing an operate and a standby phase, with the output stage latched during standby to achieve low microampere consumption. The internal circuit design ensures precise magnetic switching points and high temperature stability.
Product Attributes
- Brand: NatLinear
- Product Type: CMOS Hall-Effect Sensor IC
- Switching Behavior: Omnipolar (responds to North or South pole)
- Not suitable for automotive applications.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | LN4913 |
| Revision | 1.0 |
| Publication Date | June 13, 2012 |
| Supply Voltage (VDD) | 1.65 V to 5.5 V |
| Average Supply Current (ISAVG) | 1 A (Typ: 3 A, Max: 10 A) |
| Average Supply Current during Operating Time (ISOPAVG) | 0.5 mA (Typ: 2.0 mA, Max: 3.5 mA) |
| Peak Current during Operating Time (ISOPT) | 4.5 mA (Max) |
| Supply Current during Standby Time (ISSTB) | 1 A (Typ: 1.9 A, Max: 8 A) |
| Output Saturation Voltage (VQSAT) at IQ=1mA | 0.13 V (Typ: 0.4 V) |
| Output on Leakage Current (IQLEAK) | 0.01 A (Typ: 1 A) |
| Output Rise Time (tr) at RL=2.7K, CL=10pF | 0.5 s (Typ: 1 s) |
| Output Fall Time (tf) at RL=2.7K, CL=10pF | 0.1 s (Typ: 1 s) |
| Operating Time (top) | 25 s (Typ: 100 s, Max: 160 s) |
| Standby Time (tstb) | 60 ms (Typ: 140 ms, Max: 240 ms) |
| Duty Cycle (top/tstb) | 0.071 % |
| Start-up Time of IC (tstu) | 12 s (Typ: 20 s) |
| Magnetic Switching Point - Positive Operating Point (BOPS) | 2 mT (Typ: 3.5 mT, Max: 5 mT) |
| Magnetic Switching Point - Negative Operating Point (BOPN) | -5 mT (Typ: -3.5 mT, Max: -2 mT) |
| Magnetic Release Point - Positive (BRPS) | 1.2 mT (Typ: 2.7 mT, Max: 4.2 mT) |
| Magnetic Release Point - Negative (BRPN) | -4.2 mT (Typ: -2.6 mT, Max: -1.2 mT) |
| Hysteresis (BHYS) | 0.2 mT (Typ: 0.8 mT, Max: 1.6 mT) |
| Absolute Maximum Supply Voltage (VDD) | -0.3 to 6.0 V |
| Absolute Maximum Operating Current (IDD) | -1 to 4.5 mA |
| Absolute Maximum Output Voltage (VOUT) | -0.3 to 6.0 V |
| Absolute Maximum Output Current (IOUT) | -1 to 2.0 mA |
| Storage Temperature Range | -40 to +150 C |
| Maximum Junction Temperature (TJ) | 150 C |
| ESD Protection | 4000 V |
| Available Packages | SOT-23-3, TSOT-23-3, TO-92S, DFN2015-6, DFN2*2-3 |
| Typical Applications | Cover switch in clam-shell cellular phones, Cover switch in Notebook PC/PDA, Contact-less switch in consumer products |
2410121231_NATLINEAR-LN4913SRB_C236385.pdf
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