MAX17121 19-4936 Rev 0 9/09 Dual High-Voltage Scan Drivers for TFT LCD General Description Features The MAX17121 includes two high-voltage level-shifting S +40V to -30V Output Swing Range scan drivers for TFT panel integrated gate logic. Each S Fast Slew Rate for High Capacitive Load scan driver has two channels that switch complementa- S Load Charge Sharing for Power Saving rily. The scan-driver outputs swing from +40V to -30V and can swiftly drive capacitive loads. In order to save power, S 24-Pin, 4mm x 4mm, Thin QFN Package the scan drivers complementary outputs share the charge of their capacitive load before they change states. The MAX17121 is available in a 24-pin, 4mm x 4mm, thin QFN package with a maximum thickness of 0.8mm for ultra-thin LCD panels. Applications Ordering Information Notebook Computer Displays LCD Monitor and Small TV Panels PART TEMP RANGE PIN-PACKAGE MAX17121ETG+ -40C to +85C 24 TQFN-EP* *EP = Exposed pad. Simplified Operating Circuit Pin Configuration V = 25V V = -15V VON VOFF TOP VIEW 24 23 22 21 20 19 CKVB1 N.C. CKVB1 1 18 VOFF N.C. STVP 17 N.C. STVP 2 N.C. CKVB2 VDD CKVB2 3 16 200I N.C. CKVBCS2 MAX17121 MAX17121 CKVBCS2 4 15 DISH CKVCS2 CKVCS2 5 14 GND 200I *EP CKV2 6 13 N.C. CKV2 STV V = 3.3V VDD 7 8 9 10 11 12 STV EN *EP = EXPOSED PAD T-CON CPV1 CPV2 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 EQUIVALENT LOAD OF DISPLAY PANEL EN CKVBCS1 CPV1 CKVCS1 CPV2 CKV1 DLY VON GND GND VOFF DISH VDD STV CKVBCS1 CPV1 CKVCS1 CPV2 CKV1 N.C. GND EN N.C. DLY VONDual High-Voltage Scan Drivers for TFT LCD ABSOLUTE MAXIMUM RATINGS VDD to GND ............................................................-0.3V to +4V STVP to VOFF ......................................... -0.3V to (V + 0.3V) VON CPV1, CPV2, STV, EN to GND ................................-0.3V to +4V CKVCS1, CKVCS2 to VOFF ................... -0.3V to (V + 0.3V) VON DLY to GND .............................................-0.3V to (V + 0.3V) CKVBCS1, CKVBCS2 to VOFF .............. -0.3V to (V + 0.3V) VDD VON DISH to GND ..............................................-6V to (V + 0.3V) Continuous Power Dissipation (T = +70NC) VDD A VON to GND ..........................................................-0.3V to +45V 24-Pin, 4mm x 4mm Thin QFN VOFF to GND .......................................................-35V to + 0.3V (derate 27.8mW/NC above +70NC)..........................2222.2mW VON to VOFF ...................................................................... +65V Operating Temperature Range .......................... -40NC to +85NC CKV1, CKV2, CKVB1, CKVB2, Junction Temperature .....................................................+150NC to VOFF ............................................... -0.3V to (V + 0.3V) Storage Temperature Range ............................ -65NC to +150NC VON Lead Temperature (soldering, 10s) ................................+300NC 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 = V = +3.3V, V = 25V, V = -15V, STV = CPV1 = CPV2 = GND, T = 0NC to +85NC, unless otherwise noted. VDD EN VON VOFF A Typical values are at T = +25NC.) A PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Input Voltage Range 2.2 3.6 V VDD UV Lockout Rising, hysteresis = 150mV 2 2.15 V V = 3.3V 250 400 EN VDD Quiescent Current FA EN = GND 250 400 Thermal Shutdown +160 Rising edge, hysteresis = 15NC NC VON Input Voltage Range 15 40 V V = 3.3V 300 600 EN VON Supply Current FA EN = GND 300 600 VOFF Input Voltage Range -30 -3 V V = 3.3V 200 300 EN VOFF Supply Current FA EN = GND 200 300 VON-to-VOFF Voltage Range 65 V VON rising 12 13 VON UV Lockout V VON falling 10 11 CKV , CKVB Output Low I(CKV ) = -20mA 5 10 I CKV , CKVB Output High I(CKV ) = 20mA 9 18 I CPV Rising to CKV Rising t , Figure 4, V = 0V 100 150 ns R STV CPV Rising to CKV Falling t , Figure 4, V = 0V 100 150 ns F STV CPV Rising to CKVB Rising t , Figure 4, V = 0V 100 150 ns R STV CPV Rising to CKVB Falling t , Figure 4, V = 0V 100 150 ns F STV CPV Falling to CKVCS Rising t , Figure 4, V = 0V 100 150 ns CSR STV CPV Falling to CKVCS Falling t , Figure 4, V = 0V 100 150 ns CSF STV CPV Falling to CKVCBS Rising t , Figure 4, V = 0V 100 150 ns CSR STV CPV Falling to CKVBCS Falling t , Figure 4, V = 0V 100 150 ns CSF STV 2 MAX17121