MAX17079 19-2812 Rev 1 3/10 4-Level or 2-Level Logic to High-Voltage Level Shifter for TFT LCD TV Display General Description Features 7-Channel Logic-Level Input to High-Voltage The MAX17079 is a 7-channel logic-level input to high- Output Level Shifter voltage output level shifter. Each channel has two inputs plus a shared enable input. Each channel has Complementary Outputs in Each Channel two outputs, which can be set to five output levels. Two VLS Input Range from 10V to 18V outputs are complementary to each other. The five out- VCC Input Range from 2.3V to 3.6V put levels are set by five supply rails that are common 2-Level or 4-Level Operation to all 14 outputs. Sequential or Combinational Logic The five supply rails include a typical TFT VCOM rail. 3 Output Switches Two upper rails are always greater than VCOM, with VH1 always greater than VH2. The two lower rails are 5-Level Output always less than VCOM, with VL1 always less than VL2. Short Propagation Delay (80ns typ) Other supply rails are VLS (the typical TFT AVDD sup- Fast Rise Time (30ns typ) ply) and VCC (the logic supply). The MAX17079 can Built-In Dead Time to Prevent Shoot-Through also be configured as a two-level voltage shifter. Thermal Shutdown When EN is low, all 14 outputs connect to VCOM, and VLS and VCC Undervoltage Lockout when EN is high, the outputs are determined by their inputs. The logic inputs are driven by the timing con- Ordering Information troller. The output switches are typically 3 with low PIN- PKG propagation delays and fast rise times. The MAX17079 PART TEMP RANGE PACKAGE CODE has a minimum dead time to prevent shoot-through cur- rents between supplies. The MAX17079 has thermal 40 TQFN-EP* MAX17079GTL+ -40C to +105C T4066+5 shutdown to protect against overheating, VCC under- (6mm x 6mm) voltage lockout (UVLO), and VLS UVLO. *EP = Exposed paddle. The MAX17079 is in a 40-pin, 6mm x 6mm, thin QFN Simplified Operating Circuit package, with exposed pad and a maximum height of 0.8mm. 3.3V 10V 7V 6V 5V 2V 15V Applications VCC VH1 VH2 VCOM VL2 VL1 VLS TFT LCD TV Panels OA1 Pin Configuration OB1 A1 OA2 TOP VIEW B1 OB2 30 29 28 27 26 25 24 23 22 21 A2 OA3 20 OB1 31 OA7 B2 19 OB7 OA1 32 OB3 A3 EP ST 33 18 VCOM B3 OA4 PANEL SYSTEM 34 17 VL1 VH1 A4 OB4 VH2 35 16 VL2 MAX17079 B4 MAX17079 15 DGND VLS 36 OA5 A5 37 14 B7 AGND OB5 B5 13 A7 VCC 38 A6 OA6 39 12 B6 EN B6 11 A6 CH 40 OB6 A7 12 3 45 6 7 89 10 OA7 B7 OB7 AGND EN DGND CH ST THIN QFN (6mm x 6mm) EP = EXPOSED PAD 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 AVAILABLE A1 OA2 B1 OB2 A2 OA3 OB3 B2 A3 OA4 OB4 B3 OA5 A4 OB5 B4 A5 OA6 OB6 B54-Level or 2-Level Logic to High-Voltage Level Shifter for TFT LCD TV Display ABSOLUTE MAXIMUM RATINGS VCC to AGND...........................................................-0.3V to +7V Continuous Power Dissipation (T = +70C) A Ax, Bx, CH, ST, EN to AGND....................................-0.3V to +7V 40-Pin, 6mm x 6mm TQFN DGND to AGND.....................................................-0.3V to +0.3V (derate 35.7mW/C above +70C) .........................2857.1mW VLS to DGND..........................................................-0.3V to +20V Operating Temperature Range .........................-40C to +105C VH1, VH2, VL1, VL2, VCOM to DGND ........-0.3V to (V + 0.3V) Junction Temperature......................................................+150C LS OAx, OBx to DGND ..........................(V - 0.3V) to (V + 0.3V) Storage Temperature Range .............................-65C to +150C L1 H1 OBx, OAx RMS Current.......................................................50mA Soldering Temperature (soldering, 10s)..........................+300C VH1, VH2, VL1, VL2 RMS Current.....................................300mA Soldering Temperature (reflow) .......................................+260C VH2, VL2, VCOM, to DGND.............(VL1 - 0.3V) to (VH1 + 0.3V) 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 (Circuit of Figure 1, V = 3.3V, V = 15V, V = 10V, V = 7V, V = 6V, V = 5V, V = 2V, T = -40C to +105C. VCC VLS VH1 VH2 VCOM VL2 VL1 A Typical values are at T = +25C, unless otherwise noted.) (Note 1) A PARAMETER CONDITIONS MIN TYP MAX UNITS GENERAL VCC Input Voltage Range 2.3 3.6 V VCC Input Undervoltage Lockout Rising edge, 200mV typical hysteresis 1.8 2.0 2.2 V VLS Input Voltage Range 10 18 V VLS Input Undervoltage Lockout Rising edge, 500mV typical hysteresis 8.0 8.5 9.0 V VH1 Input Voltage Range 4 V V VLS VH2 Input Voltage Range 0 V - 4 V VLS VL2 Input Voltage Range 0 V - 4 V VLS VL1 Input Voltage Range 0 V - 4 V VLS VCOM Input Voltage Range 4 V - 4 V VLS VCC Quiescent Current 50 A VLS Quiescent Current All channels in STATE 2 300 A VH1 Quiescent Current All channels in STATE 1 or STATE 3 150 A VH2 Quiescent Current All channels in STATE 2 or STATE 4 -125 A VL1 Quiescent Current All channels in STATE 1 or STATE 3 -90 A VL2 Quiescent Current All channels in STATE 2 or STATE 4 -130 A INPUTS AND OUTPUTS 0.3 x Logic-Input Low Voltage EN, CH, ST, Ax, Bx V V VCC 0.7 x Logic-Input High Voltage EN, CH, ST, Ax, Bx V V VCC Logic-Low Input Current EN, CH, ST, Ax, Bx to AGND -1 +1 A Logic-High Input Current VCC to EN, CH, ST, Ax, Bx 10.0 16.5 30.0 A VH1 - OAx, VH1 - OBx V = 10V, V = 5V, VLS VH1 3 On-Resistance I = 20mA (OAx, OBx) VH2 - OAx, VH2 - OBx V = 10V, V = 5V, VLS VH2 3 On-Resistance I = 20mA (OAx, OBx) 2 MAX17079