MAX4885AE 19-5022 Rev 0 10/09 High-Bandwidth, VGA 2:1 Switch with 15kV ESD Protection General Description Features The MAX4885AE integrates high-bandwidth analog S Low 5I (typ) On-Resistance (R , G , B Signals) switches, level-translating buffers, and level-translating S Low 5.5pF (typ) On-Capacitance (R , G , B FET switches to implement a complete 2:1 multiplexer Signals) for VGA signals. The device provides three very high- S Independent, Selectable Logic Inputs for frequency 900MHz (typ) SPDT switches for RGB signals, Switching two low-frequency clamping switches for the DDC sig- nals, a pair of level-translating buffers for the H and V S Similar Pin Configuration to MAX4885 signals, and integrated extended ESD protection. S Ultra-Small, 28-Pin (4mm x 4mm) TQFN Package Horizontal and vertical synchronization (H /V ) inputs S Q15kV ESD HBM feature level-shifting buffers to support low-voltage controllers and standard 5V-TTL-compatible monitors, Ordering Information meeting the VESA requirement. Display Data Channel PART TEMP RANGE PIN-PACKAGE (DDC), consisting of SDA and SCL , are FET switches that protect the low-voltage VGA source from potential MAX4885AEETI+ -40NC to +85NC 28 TQFN-EP* damage from high-voltage presence on the monitor +Denotes a lead(Pb)-free/RoHS-compliant package. while reducing capacitive load. *EP = Exposed pad. All seven output terminals of the MAX4885AE feature high-ESD protection to Q15kV Human Body Model Typical Operating Circuit (HBM) (see the Pin Description). All other pins are pro- tected to Q2kV Human Body Model (HBM). +3.3V +5V The MAX4885AE is specified over the extended -40NC to +85NC temperature range, and is available in a space- 1F 1F V V L CC saving, 28-pin, 4mm x 4mm TQFN package. MAX4885AE Applications 3 3 R1, G1, B1 R0, G0, B0 Notebook ComputerMXM/Switchable Graphics MXM 2 2 VGA H1, V1 H0, V0 MODULE PORT 2 2 KVM for Servers SDA0, SCL0 SDA1, SCL1 3 R2, G2, B2 INTERNAL 2 H2, V2 GRAPHICS 2 SDA2, SCL2 SEL1 CPU SEL2 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. EVALUATION KIT AVAILABLEHigh-Bandwidth, VGA 2:1 Switch with 15kV ESD Protection ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND unless otherwise noted.) Continuous Power Dissipation (T = +70NC) A V ..........................................................................-0.3V to +6V 28-Pin TQFN (derate 28.6mW/NC above +70NC) ....2285.7mW CC V .............................................................. -0.3V to (V + 0.3V) Junction-to-Ambient Thermal Resistance (B ) (Note 1) L CC JA R , G , B , H0, V0, SDA0, SCL0 ............. -0.3V to (V + 0.3V) 28-Pin TQFN .................................................................35NC/W CC H1, H2, V1, V2, SDA1, SDA2, SCL1, Junction-to-Case Thermal Resistance (B ) (Note 1) JC SCL2, SEL1, SEL2 ................................... -0.3V to (V + 0.3V) 28-Pin TQFN ...................................................................3NC/W L Continuous Current through R , G , B Switches ..........Q50mA Operating Temperature Range .......................... -40NC to +85NC Continuous Current through SDA , SCL Switches ......Q50mA Storage Temperature Range ............................ -65NC to +150NC Continuous Current into SEL1, SEL2, H1, H2, V1, V2 ....Q20mA Junction Temperature ................................................... +150NC Peak Current through all Switches Lead Temperature (soldering, 10s) ................................+300NC (pulsed at 1ms, 10% duty cycle) ...............................Q100mA 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 = +4.5V to +5.5V, V = +2.2V to V , T = T to T , unless otherwise noted. Typical values are at T = +25NC.) CC L CC A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V +4.5 +5.5 V CC Logic Supply Voltage V V P V +2.2 V V L L CC CC V = +5.5V, V = +3.6V, CC L V Supply Current I 2 5 FA CC CC SEL = H1 = H2 = V1 = V2 = GND V = +5.5V, V = +3.6V, CC L V Supply Current I 1 FA L L SEL = H1 = H2 = V1 = V2 = GND ANALOG SWITCHES On-Resistance (R , G , B ) R-HF- V = +0.7V, I = Q10mA 5 8 I ON IN IN On-Resistance Match (R , G , DR 0 P V P +0.7V, I = -10mA 1 I ON IN IN B ) On-Resistance Flatness R 0 P V P +0.7V, I = -10mA 0.5 1 I FLAT(ON) IN IN (R , G , B ) Off Leakage Current (R , G , B ) I V , V , V = 0V or V -1 +1 FA OFF R G B CC On-Resistance (SDA , SCL ) R-DDC V = +0.7V, I = Q10mA 15 I ON IN IN Off-Leakage Current V , V = 0V or V , SDA SCL L I -1 +1 FA OFF (SDA , SCL ) V = V = +5V CC L 2 MAX4885AE