19-0188; Rev 0; 11/93 Dual-Slot PCMCIA Analog Power Controllers ____________________________Features ♦ Logic Compatible with Industry-Standard PCMCIA Digital Controllers: Intel 82365SL Intel 82365SL DF Vadem VG-365 Vadem VG-465 Vadem VG-468 Cirrus Logic CL-PD6710 Cirrus Logic CL-PD6720 ♦ 0V/VCC/+12V/High-Impedance VPP Outputs ♦ Internal 1.6Ω VPP Power Switches ♦ 10mA Quiescent Supply Current ♦ Break-Before-Make Switching ♦ VCC Switch Control ________________________Applications Notebook and Palmtop Computers Personal Organizers ______________Ordering Information Digital Cameras Handiterminals PART Bar-Code Readers _________________Pin Configurations TOP VIEW GND 1 14 VPPIN AVPP1 2 13 VCCIN PIN-PACKAGE 0°C to +70°C 14 Plastic DIP MAX613CSD MAX613EPD MAX613ESD MAX614CPA MAX614CSA MAX614EPA MAX614ESA 0°C to +70°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C 14 SO 14 Plastic DIP 14 SO 8 Plastic DIP 8 SO 8 Plastic DIP 8 SO 12 AVPP AVPP0 3 BVPP1 4 TEMP. RANGE MAX613CPD MAX613 11 BVPP _________Typical Operating Circuit 10 SHDN BVPP0 5 VCC1 6 9 DRV3 VCC0 7 8 DRV5 +5V +12V VCCIN VPPIN DIP/SO VCC 8 VPPIN GND 1 7 VCCIN AVPP1 2 AVPP0 3 MAX614 6 AVPP 5 DRV VCC0 4 PC CARD SOCKET CONTROLLER 5 DRV3 MAX613 AVPP BVPP VCC PCMCIA SLOT VPP1 VPP2 DIP/SO ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. 1 MAX613/MAX614 _______________General Description The MAX613/MAX614 contain switches for the VPP supply-voltage lines for Personal Computer Memory Card International Association (PCMCIA) Release 2.0 card slots. These ICs also contain level-translator outputs to switch the PCMCIA card VCC. The MAX613 allows digital control of two separate VPP lines that can be switched between 0V, VCC, +12V, and high impedance. It also includes level shifters that allow the control of N-channel power MOSFETs for connecting and disconnecting the slot VCC supply voltage. The MAX614 controls a single VPP supply-voltage line and includes one level shifter in an 8-pin package. MAX613/MAX614 Dual-Slot PCMCIA Analog Power Controllers ABSOLUTE MAXIMUM RATINGS VCCIN to GND.............................................................+7V, -0.3V VPPIN to GND ........................................................+13.2V, -0.3V DRV5, DRV3, DRV to GND ........................(VPPIN + 0.3V), -0.3V AVPP, BVPP to GND ..................................(VPPIN + 0.3V), -0.3V All Other Pins to GND ...............................(VCCIN + 0.3V), -0.3V Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW 8-Pin SO (derate 5.88mW/°C above +70°C).......................471mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C).......800mW 14-Pin SO (derate 8.33mW/°C above +70°C) ..............667mW Operating Temperature Ranges: MAX61_C__ ........................................................0°C to +70°C MAX61_E__ .....................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C 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 (VCCIN = +5V, VPPIN = +12V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS POWER REQUIREMENTS VCCIN Input Voltage Range 2.85 5.5 V VPPIN Input Voltage Range 0 12.6 V VPPIN Supply Current (12V Mode) AVPP = BVPP = VPPIN =12.6V MAX613 –——— SHDN = 0V –——— SHDN = VCCIN MAX614 VPPIN Supply Current (5V Mode) VPPIN = 12.6V, AVPP = BVPP= VCCIN MAX613 –——— SHDN = 0V –——— SHDN = VCCIN AVPP = BVPP = 0V MAX613 –——— SHDN = 0V –——— SHDN = VCCIN AVPP = BVPP = VPPIN MAX613 –——— SHDN = 0V –——— SHDN = VCCIN AVPP = BVPP = VCCIN MAX613 –——— SHDN = 0V –——— SHDN = VCCIN MAX614 VCCIN Supply Current (0V Mode) AVPP = BVPP = 0V MAX613 MAX614 2 10 0.05 1 µA 0.05 µA 2 0.05 µA 2.25 3.5 µA 20 3.5 MAX614 VCCIN Supply Current (5V Mode) 2.25 0.05 MAX614 VCCIN Supply Current (12V Mode) 1 0.05 MAX614 VPPIN Supply Current (0V Mode) 0.05 –——— SHDN = 0V –——— SHDN = VCCIN 3.5 10 22 50 3.5 10 µA 3.5 20 3.5 _______________________________________________________________________________________ µA Dual-Slot PCMCIA Analog Power Controllers MAX613/MAX614 ELECTRICAL CHARACTERISTICS (continued) (VCCIN = +5V, VPPIN = +12V, TA = TMIN to TMAX, unless otherwise noted.) CONDITIONS PARAMETER MIN TYP MAX UNITS DC CHARACTERISTICS VPPIN = 11.4V, 0mA < ILOAD < 120mA (12V mode) AVPP, BVPP Switch Resistance 1.60 2.45 VCCIN = 4.5V, 0mA < ILOAD < 1mA (5V mode) 30 50 VPPIN = 11.4V, 0mA < ILOAD < 1mA (0V mode) 135 300 DRV, DRV3, DRV5 Leakage Current High-impedance mode DRV, DRV3, DRV5 Output Voltage Low ILOAD = 1mA Ω 1 75 nA 0.1 0.4 V 1 µA LOGIC SECTION Logic Input Leakage Current Logic Input High 2.4 V Logic Input Low 0.8 _VCC_ to DRV_ Propagation Delay V 50 ns __________________________________________Typical Operating Characteristics (Circuit of Figure 1, TA = +25°C, unless otherwise noted.) 2.2 +85°C 1.8 +25°C 1.4 VCCIN = +5.0V AVPP0 = 0V AVPP1 = +5.0V 70 +125°C 50 +25°C 30 -55°C 1.0 10.0 10.5 VPPIN = +12.0V AVPP1 = 0V AVPP0 = VCCIN 90 SWITCH RESISTANCE (Ω) SWITCH RESISTANCE (Ω) +125°C 110 MAX931-24-01 2.6 AVPP SWITCH RESISTANCE (5V MODE) MAX613/14-02 AVPP SWITCH RESISTANCE (12V MODE) -55°C 10 11.0 11.5 12.0 VPPIN (V) 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 VCCIN (V) 12.5 13.0 13.5 AVPP SWITCHING 5V TO 12V AVPP SWITCHING 12V TO 5V +5V AVPP1 0V +5V AVPP1 0V +12V +12V AVPP AVPP +5V 1µs/div CVPPIN = 1µF, AVPP0 = AVPP1, CAVPP = 0.1µF +5V 2µs/div CVPPIN = 1µF, AVPP0 = AVPP1, CAVPP = 0.1µF _______________________________________________________________________________________ 3 MAX613/MAX614 Dual-Slot PCMCIA Analog Power Controllers ______________________________________________________________Pin Description PIN NAME FUNCTION MAX613 MAX614 1 1 GND 2 2 AVPP1 3 3 AVPP0 4 — BVPP1 5 — BVPP0 6 — VCC1 Logic input that controls the state of DRV3 and DRV5 (see Table 3 in Detailed Description). 7 4 VCC0 Logic input that controls the state of DRV on the MAX614. On the MAX613, both VCC0 and VCC1 control the state of DRV3 and DRV5 (see Table 3 in Detailed Description). — 5 DRV Open-drain power MOSFET gate-driver output used to switch the slot VCC supply voltage. DRV sinks current when VCC0 is high and goes high impedance when VCC0 is low. 8 — DRV5 Open-drain power MOSFET gate-driver output used to switch the slot VCC supply voltage (see Table 3 in Detailed Description). 9 — DRV3 10 — –——— SHDN 11 — BVPP Switched output, controlled by BVPP1 and BVPP0, that outputs 0V, +5V, or +12V. BVPP can also be programmed to go high impedance (see Table 2 in Detailed Description). 12 6 AVPP Switched output, controlled by AVPP1 and AVPP0, that outputs 0V, +5V, or +12V. AVPP can also be programmed to go high impedance (see Table 1 in Detailed Description). 13 7 VCCIN +5V power input 14 8 VPPIN +12V power input. VPPIN can have 0V or +5V applied as long as VCCIN > 2.85V. Ground Logic inputs that control the voltage on AVPP (see Table 1 in Detailed Description). Logic inputs that control the voltage on BVPP (see Table 2 in Detailed Description). Open-drain power MOSFET gate-driver output used to switch the slot VCC supply voltage (see Table 3 in Detailed Description). –——— Logic-level shutdown input. When SHDN is low, DRV3 and DRV5 sink current regardless of the state of –——— VCC0 and VCC1. When SHDN is high, DRV3 and DRV5 are controlled by VCC0 and VCC1. _______________Detailed Description VPP Switching The MAX613/MAX614 allow simple switching of PCMCIA card VPP to 0V, +5V, and +12V. On-chip power MOSFETs connect AVPP and BVPP to either GND, VCCIN, or VPPIN. The AVPP0 and AVPP1 control logic inputs determine AVPP’s state. Likewise, BVPP0 and BVPP1 control BVPP. AVPP and BVPP can also be programmed to be high impedance. Each PCMCIA card slot has two VPP voltage inputs labeled VPP1 and VPP2. Typically, VPP1 supplies the flash chips that store the low-order byte of the 16-bit words, and VPP2 supplies the chips that contain the high-order byte. Programming the high-order bytes separately from the low-order bytes may be necessary to minimize +12V current consumption. A single 8-bit flash chip typically requires at most 30mA of +12V VPP current during erase or programming. 4 Thus, systems with less than 60mA current capability from +12V cannot program two 8-bit flash chips simultaneously, and need separate controls for VPP1 and VPP2. Figure 1 shows an example of a power-control circuit using the MAX613 to control VPP1 and VPP2 separately. Figure 1’s circuit uses a MAX662 charge-pump DC-DC converter to convert +5V to +12V at 30mA output current capability without an inductor. When higher VPP current is required, the MAX734 can supply 120mA. Use the MAX614 for single-slot applications that do not require a separate VPP1 and VPP2. Figure 2 shows the MAX614 interfaced to the Vadem VG-465 single-slot controller. To prevent VPP overshoot resulting from parasitic inductance in the +12V supply, the VPPIN bypass capacitor’s value must be at least 10 times greater than the capacitance from AVPP or BVPP to GND; the AVPP and BVPP bypass capacitors must be at least 0.01µF. _______________________________________________________________________________________ Dual-Slot PCMCIA Analog Power Controllers MAX613/MAX614 +5V 1⁄2 100k Si9956DY VPPIN VCCIN VCC1 M1 PCMCIA SLOT A VCC DRV3 VPP1 MAX613 AVPP0 A: VPP1_EN0 (A_VPP1EN0) AVPP1 A:VPP1_EN1 (A_VPP1EN1) BVPP0 A:VPP2_EN0 (A_VPP2EN0) BVPP1 A:VPP2_EN1 (A_VPP2EN1) AVPP 1µF VPP2 BVPP 0.1µF A:VCC_EN (A_VCCEN) VCC0 0.1µF GND INTEL 82365SL VADEM VG-365 or VADEM VG-468) 1⁄2 100k Si9956DY VPPIN VCCIN VCC1 M2 PCMCIA SLOT B VCC DRV3 MAX613 VPP1 AVPP 1µF AVPP0 B:VPP1_EN0 (B_VPP1EN0) AVPP1 B:VPP1_EN1 (B_VPP1EN1) BVPP0 B:VPP2_EN0 (B_VPP2EN0) BVPP1 B:VPP2_EN1 (B_VPP2EN1) B:VCC_EN (B_VCCEN) VCC0 VPP2 BVPP VCC 0.1µF 0.1µF GND VSS 4.7µF 0.1µF VCC GND VOUT 4.7µF C1+ 0.22µF C1- MAX662 SHDN C2+ 0.22µF C2- Figure 1. MAX613 Dual Slot, Separate VPP1 and VPP2, 5V Only VCC Operating Circuit +12V +5V 32.76kHz 50% DUTY CYCLE 100k VPPIN PCMCIA SLOT VCC VPP1 VPP2 VCCIN DRV 1µF MAX614 AVPP0 AVPP1 AVPP VCC0 4.5V MIN 9.97V (WITH 100kΩ LOAD) 10nF VADEM VG-465 0.1µF 10nF VPP1EN0 VPP1EN1 VPP2EN0 VPP2EN1 VCCEN NOTE: 1. ALL DIODES 1N4148. 2. OSCILLATOR FREQUENCY CAN BE INCREASED FOR HIGHER OUTPUT POWER. 0.1µF 4.5V MIN GND Figure 2. MAX614 Single-Slot Application Figure 3. Charge Pump _______________________________________________________________________________________ 5 MAX613/MAX614 Dual-Slot PCMCIA Analog Power Controllers VCC Switching The MAX613/MAX614 contain level shifters that simplify driving external power MOSFETs to switch PCMCIA card VCC. While a PCMCIA card is being inserted into the socket, the VCC pins on the card edge connector should be powered down to 0V to prevent “hot insertion” that may damage the PCMCIA card. The MAX613/MAX614 MOSFET drivers are open drain. Their rise time is controlled by an external pull-up resistor, allowing slow turnon of VCC power to the PCMCIA card. The DRV3 and DRV5 pins on the MAX613 and the DRV pin on the MAX614 are open-drain outputs pulled down with internal N-channel devices. The gate drive to these internal N-channel devices is powered from VCCIN, regardless of VPPIN’s voltage. If VCCIN is left unconnected or less than 2V is applied to VCCIN, the DRV3/DRV5/DRV gate drivers will not sink current. To switch VCC (M1 and M2 in Figure 1), use external N-channel power MOSFETs. M1 and M2 should be logic-level N-channel power MOSFETs with low on resistance. The Motorola MTP3055EL and Siliconix Si9956DY MOSFETs are both good choices. Turn on M1 and M2 by pulling their gates above +5V. With the gates pulled up to VPPIN as shown in Figure 1, VPPIN should be at least 10V so that with VCC = 5.5V, M1 and M2 have at least 4.5V of gate drive. OUTPUT AVPP1 AVPP0 0 0 0V 0 1 VCCIN 1 0 VPPIN 1 1 HI-Z AVPP Table 2. BVPP Control Logic LOGIC INPUT 6 LOGIC INPUT OUTPUT VCC1 VCC0 DRV3 DRV5 0 0 0 0V 0V 1 HI-Z 0V 1 0 0V HI-Z 1 1 0V 0V The gates of M1 and M2 can be pulled up to any 10V to 20V source, and do not need to be pulled up to VPPIN. Typically, the +12V used for VPPIN is supplied from a +5V to +12V switching regulator. To save power, the +5V to +12V switching regulator can be shut down when not using the VPP programming voltage, allowing VPPIN to fall below +5V. In this case, M1 and M2 should not be pulled up to VPPIN, since M1 and M2 cannot be turned on reliably when VPPIN falls below +10V. Any clock source can be used to generate a high-side gate-drive voltage by using capacitors and diodes to build an inexpensive charge pump. Figure 3 shows a charge-pump circuit that generates 10V from a +5V logic clock source. __________Applications Information Table 1. AVPP Control Logic LOGIC INPUT Table 3. MAX613 DRV3 and DRV5 Control –——— Logic ( SHDN = VCCIN) OUTPUT BVPP1 BVPP0 BVPP 0 0 0V 0 1 VCCIN 1 0 VPPIN 1 1 HI-Z The MAX613 contains all the gate drivers and switching circuitry needed to support a +3.3V/+5V VCC PCMCIA slot with minimal external components. Figure 4 shows the analog power control necessary to support two dual voltage PCMCIA slots. The A:VCC and B:VCC pins on the Intel 82365SL DF power the drivers for the control signals that directly connect to the PCMCIA card. A 3.3V card needs 3.3V logic-level control signals and the capability to program VPP1 and VPP2 to 3.3V. The MAX613’s VCCIN is switched with slot VCC, so AVPP0 = 1 and AVPP1 = 0 causes AVPP = slot VCC. Likewise, A:VCC and B:VCC are connected to VCCIN, so the Intel 82365SL DF control signals to the PCMCIA card are the right logic levels. PCMCIA card interface controllers other than the Intel 82365SL DF can be used with Figure 4’s circuit. Table 4 shows the pins on the Cirrus Logic CL-PD6720 that perform the same function as the Intel 82365SL DF pins. _______________________________________________________________________________________ Dual-Slot PCMCIA Analog Power Controllers MAX613/MAX614 +5V +3.3V 1M MOTOROLA 2N7002LT1 Si9956DY NIHON E10QS03 1M A:VCC 1⁄2 SILICONIX Si9956DY VCCIN VPPIN DRV3 PCMCIA SLOT A DRV5 AVPP0 A:VPP_EN0 AVPP1 A:VPP_EN1 BVPP0 VCC BVPP1 VPP1 AVPP MAX613 VCC0 A:VCC_EN0 VPP2 BVPP VCC1 A:VCC_EN1 GND GND INTEL 82365SL DF +5V SUMIDA CD54 18µH +3.3V T1 2N7002LT1 E10QS03 1M E10QS03 LX V+ VOUT SHDN Si9956DY 1M 1nF B:VCC 33µF 33µF 1⁄2 CC MAX734 VREF GND Si9956DY VCCIN SS DRV3 PCMCIA SLOT B DRV5 VCC VPPIN AVPP0 B:VPP_EN0 AVPP1 B:VPP_EN1 BVPP0 BVPP1 VPP1 AVPP MAX613 VCC0 B:VCC_EN0 VPP2 BVPP VCC1 B:VCC_EN1 GND GND Figure 4. Mixed 3.3V/5V VCC Application Circuit _______________________________________________________________________________________ 7 MAX613/MAX614 Dual-Slot PCMCIA Analog Power Controllers Table 4. Interchangeable Interface Controllers INTEL _________________Chip Topographies MAX613 CIRRUS LOGIC 82365SL DF CL-PD6720 A:VCC A_SLOT_VCC A:VPP_EN0 A_VPP_VCC A:VPP_EN1 A_VPP_PGM A:VCC_EN0 A_-VCC_5 A:VCC_EN1 A_-VCC_3 B:VCC B_SLOT_VCC V:VPP_EN0 B_VPP_VCC B:VPP_EN1 B_VPP_PGM B:VCC_EN0 B_-VCC_5 B:VCC_EN1 B_-VCC_3 GND VPPIN VCCIN AVPP1 AVPP AVPP0 BVPP BVPP1 BVPP0 SHDN VCC1 VCC0 DRV5 DRV3 TRANSISTOR COUNT: 982; SUBSTRATE CONNECTED TO GND. MAX614 GND VPPIN VCCIN AVPP AVPP1 AVPP0 VCC0 DRV TRANSISTOR COUNT: 982; SUBSTRATE CONNECTED TO GND. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1993 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.