MAX14525 19-4356 Rev 0 10/08 Battery Switch with Four Enable Inputs General Description Features The MAX14525 features a low R 35m (typ) load ON Low 35m (typ) R Load Switch ON switch with four unique enable inputs. The MAX14525 Ultra Low, 0.8A (typ) Supply Current is ideal for disconnecting the lithium-ion (Li+) battery from the loads in portable devices such as cell phones. Four Enable Inputs: The MAX14525 operates from a +2.2V to +5.5V supply TA: +28V (max) Capable voltage. ON K: Accurate +3V Trigger Enable The MAX14525 features an extremely low 0.8A (typ) JIG: Factory Mode Enable quiescent supply current to maximize battery life in S EN: Logically ANDed with IN portable devices. It is enabled from four possible inputs: external charger connection capable of high Space-Saving 8-Pin, 2mm x 2mm TDFN Package voltage up to +28V, travel adapter (TA), on key (ON K), Controlled Turn-On to Limit dI/dt Pulses Due to factory mode enable (JIG), and switch enable (S EN). Lead Inductance The S EN input is internally ANDed with the switched battery connection (IN). The MAX14525 is available in a small 8-pin, 2mm x 2mm TDFN package and operates over the -40C to +85C extended temperature range. Applications Ordering Information Cell Phones PART PIN-PACKAGE TOP MARK PDAs M AX 14525E TA+T 8 TDFN-EP* ACQ GPS Note: The device is specified over the -40C to +85C operating temperature range. UMPC Computers +Denotes a lead-free/RoHS-compliant package. Digital Cameras *EP = Exposed pad. Typical Application Circuit Pin Configuration TOP VIEW MAX14525 BAT IN AC CHARGER ADAPTER ON K Li-ION BATTERY ON BAT 1 + 8 IN PHONE BUTTON LOADS JIG IN 2 7 3.0V MAX14525 ON K 3 6 TA TA *EP SLEW RATE S EN 4 5 GND CONTROL 2V JIG P S EN GND TDFN-EP 2mm x 2mm *CONNECT EXPOSED PAD TO GND. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Battery Switch with Four Enable Inputs ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) Junction-to-Ambient Thermal Resistance IN, BAT, JIG, S EN, ON K ................................... -0.3V to +6.0V ( ) (Note 1) ...............................................................84C/W JA TA ...........................................................................-0.3V to +28V Operating Temperature Range .......................... -40C to +85C Continuous Power Dissipation (T = +70C) Junction Temperature..................................................... +150C A 8-Pin TDFN (derate 11.9 mW/C above +70C) .........954 mW Storage Temperature Range ............................ -65C to +150C Junction-to-Case Thermal Resistance Lead Temperature (soldering, 10s) .................................+300C ( ) (Note 1) ...............................................................37C/W JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. 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. ELECTRICAL CHARACTERISTICS (V = +2.2V to +5.5V, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.6V and T = +25C.) BAT A BAT A (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS Input Voltage Range V , V 2.2 5.5 V BAT IN On-Resistance R I = 100mA, V = +3.0V 35 90 m ON LOAD BAT V = +5.5V BAT Disable Supply Current I 1A BAT DIS (V = V = V = V = V = 0) JIG S EN ON K TA IN V Supply Current I V = V = V , V = V = 0 0.8 4.5 A BAT BAT JIG S EN BAT ON K TA Increase in Supply Current with I V = V = V or V 2A BAT JIG S EN IH IL V /V Voltage JIG S EN Increase in Supply Current with I V = V = +3.6V 4.5 A BAT BAT ON K V Voltage ON K Peak Current I V = +3.6V 5 A LIM BAT UVLO Undervoltage Lockout Ramping V 1.9 V BAT LOGIC INPUT TA Threshold Voltage V 1.15 1.7 2.5 V TA TH TA Threshold Hysteresis 1% TA Input Resistance V = 1V 50 100 180 k TA JIG, S EN Input Logic-High V 1.4 V IH JIG, S EN Input Logic-Low V 0.4 V IL JIG, S EN Input Leakage Current I V = +5.5V -200 +200 nA IN BAT 0.3 x 0.6 x IN AND Gate Threshold Voltage V V IN TH V V BAT BAT Low-to-high transition ON K Threshold Voltage V 2.94 3.0 3.06 V ON K TH (Figure 1) ON K Threshold Hysteresis 1% 2 MAX14525