SI6924EDQ Datasheet | Vishay

Vishay Siliconix N-Channel 2.5-V (G-S) Battery Switch, ESD Protection PRODUCT SUMMARY VDS (V) 28 r DS(on) (W) 0.033 @ VGS = 4.5 V 0.038 @ VGS = 3.0 V 0.042 @ VGS = 2.5 V ID (A) "4.6 "4.3 "4.1 ESD Protected 2000 V Features D D D D Low r DS(on) VGS Max Rating: 14 V Exceeds 2-k V ESD Protection Low Profile TSSOP-8 Package D r DS(on) Rating at 2.5-V VGS D 28-V VDS Rated D Symetrical Voltage Blocking (Off Voltage) DESCRIPTION The Si6924EDQ is a dual n-channel MOSFET with ESD protection and gate over-voltage protection circuitry incorporated into the MOSFET. The device is designed for use in Lithium Ion battery pack circuits. The mon-drain contsruction takes advantage of the typical battery pack topology, allowing a further reduction of the device’s on-resistance. The 2-stage input protection circuit is a unique design, consisting of two stages of back-to-back zener diodes separated by a resistor. The first stage diode is designed to absorb most of the ESD energy. The second stage diode is designed to protect the gate from any remaining ESD energy and over-voltages above the gates inherent safe operating range. The series resistor used to limit the current through the second stage diode during over voltage conditions has a maximum value which limits the input current to v 10 m A @ 14 V and the maximum toff to 12 ms. The Si6924EDQ has been optimized as a battery or load switch in Lithium Ion applications with the advantage of both a 2.5-V r DS(on) rating and a safe 14-V gate-to-source maximum rating. APPLICATION CIRCUITS D ESD and Overvoltage Protection ESD and Overvoltage Protection R- - G - - R typical value is 1.8 k W by design. Battery Protection Circuit See Typical Characteristics, Gate-Current vs. Gate-Source Voltage, Page 3. - Thermal connection to drain pins is required to achieve specific performance. FIGURE 1. Typical Use In a Lithium Ion Battery Pack Document Number: 70814 S-59522- Rev. C, 30-Nov-98 FIGURE 2. Input ESD and Overvoltage Protection...