mic2563a

MIC2563AMicrelMIC2563ADual Slot PCMCIA/CardBus Power ControllerFinal InformationGeneral DescriptionThe MIC2563A Dual Slot PCMCIA (Personal ComputerMemory Card International Association) and CardBus PowerController handles all PC Card slot power supply pins, bothVCC and VPP. The MIC2563A switches between the three VCCvoltages (0V, 3.3V and 5.0V) and the VPP voltages (OFF, 0V,3.3V, 5V, or 12.0V) required by PC Cards. The MIC2563Aswitches voltages from the system power supply to VCC andVPP. Output voltage is selected by two digital inputs each andoutput current ranges up to 1A for VCC and 250mA for VPP.The MIC2563A provides power management capability con-trolled by the PC Card logic controller. Voltage rise and falltimes are well controlled. Medium current VPP and highcurrent VCC output switches are self-biasing: no +12V supplyis required for 3.3V or 5V output.The MIC2563A is designed for efficient operation. In standby(sleep) mode the device draws very little quiescent current,typically 0.3µA. The device and PCMCIA port is protected bycurrent limiting and overtemperature shutdown. Full cross-conduction lockout protects the system power supplies.The MIC2563A is an improved version of the MIC2563,offering lower ON-resistances and a VCC pulldown clamp inthe OFF mode. It is available in a 28-pin SSOP.Applications••••••••••Dual Slot PC Card Power Supply Pin Voltage SwitchCardBus Slot Power Supply ControlData Collection SystemsMachine Control Data Input SystemsWireless CommunicationsBar Code Data Collection SystemsInstrumentation Configuration/DataloggingDocking Stations (portable and desktop)Power Supply ManagementPower Analog SwitchingFeatures•••••••••••••Single Package Controls Two PC Card SlotsHigh Efficiency, Low Resistance Switches Require No12V Bias SupplyNo External Components RequiredOutput Current Limit and Overtemperature ShutdownUltra Low Power ConsumptionComplete Dual Slot PC Card/CardBus VCC and VPPSwitch Matrix in a Single PackageLogic Compatible with Industry Standard PC Card LogicControllersNo Voltage Shoot-Through or Switching TransientsBreak-Before-Make SwitchingDigital Selection of VCC and VPP VoltagesOver 1A VCC Output Current for Each SectionOver 250mA VPP Output Current for Each Section28-Pin SSOP PackageOrdering InformationPart NumberMIC2563A-0BSMMIC2563A-1BSMTemperature Range–40°C to +85°C–40°C to +85°CPackage28-pin SSOP28-pin SSOPTypical Application5VSystemPower3.3VSupply12V(opt)VPPINVCC3INVCC5IN(opt)(opt)Note:see the logic table inside for a description of the differencesbetween the logic optionsVPP1VPP2PCMCIACard SlotAVCCEN0EN1VCC5_ENPCMCIACard SlotControllerVCC3_ENMIC2563VPP1EN0EN1VCC5_ENVCC3_ENPCMCIAVPP2PCMCIACard SlotCard SlotBVCCMicrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com19971MIC2563AMIC2563AMicrelSupply Voltage, VPP IN......................................................15VVCC3 IN................................................................7.5VVCC5 IN................................................................7.5VLogic Input Voltages.....................................–0.3V to +10VOutput Current (each Output)VPP OUT............................>200mA, Internally LimitedVCC OUT......................................>1A, Internally LimitedAbsolute Maximum Ratings (Notes 1 and 2)Power Dissipation, TAMBIENT ≤ 25°C......Internally LimitedSSOP..............................................................800 mWDerating Factors (To Ambient)SSOP.............................................................4 mW/°CStorage Temperature..............................–65°C to +150°COperating Temperature (Die)...................................125°CLead Temperature (5 sec)........................................260°CPin ConfigurationA VCC5 INA VCC OUTA VCC5 INGNDA VCC5_ENA VCC3_ENA EN0A EN1B VPP INB VPP OUTNCB VCC OUTB VCC3 INB VCC OUT28234567101112131427262524232221201918171615Logic Block DiagramA VPP IN(optional)A EN1A EN0 MIC2563Section AControlLogicAVCC OUTA VCC3 INA VCC OUTNCA VPP OUTA VPP INB EN1B EN0B VCC3_ENB VCC5_ENGNDB VCC5 INB VCC OUTB VCC5 INA VPP OUTA VCC5_ENA VCC3_ENA VCC OUTA VCC3 IN28 Pin SSOP PackageA VCC5 INILimit / ThermalShut DownGate DriveGeneratorConnect all pins with the same name together forproper operation.B VPP IN(optional)B EN1B EN0 MIC2563Section BControlLogicB VPP OUTB VCC5_ENMIC2563A-1 Redefined Pin AssignmentFunctionVPP_VCCVPP_PGMPin NumberSlot ASlot B721822B VCC3_ENB VCC OUTVCC3 INVCC5 INSome pin names for the MIC2563A-1 are different from theMIC2563A-0. This table shows the differences. All other pinnames are identical to the MIC2563A-0 as shown in the PinConfiguration, above.MIC2563A2ILimit / ThermalShut DownGate DriveGeneratorGND1997MIC2563AMicrelElectrical Characteristics: (Over operating temperature range with VCC3 IN = 3.3V, VCC5 IN = 5.0V, VPP IN = 12V, unlessotherwise specified.)Symbol

DIGITAL INPUTSVIHVILIIN

Logic 1 Input VoltageLogic 0 Input VoltageInput Current

0 V < VIN < 5.5V

2.2–0.3

7.50.8±1

VVµA

Parameter

Conditions

Min

Typ

Max

Units

VPP OUTPUTIPP OUTHi-ZIPPSCRO

High Impedance OutputLeakage Current

Short Circuit Current LimitSwitch Resistance

Shutdown Mode0 ≤ VPP OUT ≤ 12VVPP OUT = 0

Select VPP OUT = 5VSelect VPP OUT = 3.3V

IPP OUT = –100mA (Sourcing)VPP IN = 12V

IPP OUT = –100 mA (Sourcing)Select VPP OUT = clamped to groundIPP OUT = 50µA (Sinking)

0.2

1

10

µA

0.31.83.3

2.55

AΩ

RO

Switch Resistance,Select VPP OUT = 12VSwitch Resistance,Select VPP OUT = 0V

0.61Ω

RO

25003900Ω

VPP SWITCHING TIME (See Figure 1)t1t2t3t4t5t6t7t8t9t10t14t15t16t11t12t13

Output Turn-ON Delay(Note 3)

VPP OUT = Hi-Z to 10% of 3.3VVPP OUT = Hi-Z to 10% of 5VVPP OUT = Hi-Z to 10% of 12VVPP OUT = 10% to 90% of 3.3VVPP OUT = 10% to 90% of 5VVPP OUT = 10% to 90% of 12VVPP OUT = 3.3V to 90% of 12VVPP OUT = 5V to 90% of 12VVPP OUT = 12V to 90% of 3.3VVPP OUT = 12V to 90% of 5VVPP OUT = 3.3V to Hi-ZVPP OUT = 5V to Hi-ZVPP OUT = 12V to Hi-ZVPP OUT = 90% to 10% of 3.3VVPP OUT = 90% to 10% of 5VVPP OUT = 90% to 10% of 12V

100100100100100100100

510702003002252502002003502002002005050300

5050250800100080010008008001200100010001000100010002000

µs

Output Rise Time(Note 3)

µs

Output Transition Timing(Note 3)

µs

Output Turn-Off Delay Time(Notes 3, 5)

ns

Output Turn-OFF Fall Time(Note 3)

ns

19973MIC2563A

MIC2563AMicrelElectrical Characteristics (continued)

SymbolVCC OUTPUTICCSCRO

Short Circuit Current LimitSwitch Resistance

VCC OUT = 0

Select VCC OUT = 3.3VICC OUT = –1A (Sourcing)Select VCC OUT = 5V

ICC OUT = –1A (Sourcing)

Select VCC OUT = clamped to groundICC OUT = 0.1mA (Sinking)

VCC SWITCHING TIME (See Figure 2)t1t2t3t4t7t8t5t6

POWER SUPPLYICC5

VCC5 IN Supply Current (5V)

VCC OUT = 5V or 3.3V, ICC OUT = 0VCC OUT = 0V (Sleep Mode)

ICC3

VCC3 IN Supply Current (3.3V)(Note 6)

IPP IN

VPP IN Supply Current (12V)(Note 7)

VCC OUT = 5V or 3.3V, ICC OUT = 0VCC OUT = 0V (Sleep Mode)VPP OUT = 3.3V or 5V. IPP OUT = 0VPP OUT = Hi-Z, 0 or VPP

80.2400.10.30.3

50101001044

µAµAµA

Output Fall Time(Note 4)

Output Turn-Off Delay(Notes 4, 5)

Output Turn ON Delay Time(Note 4)

Output Rise Time(Note 4)

VCC OUT = 0V to 10% of 3.3VVCC OUT = 0V to 10% of 5.0VVCC OUT = 10% to 90% of 3.3VVCC OUT = 10% to 90% of 5VVCC OUT = 3.3VVCC OUT = 5V

VCC OUT = 90% to 10% of 3.3VVCC OUT = 90% to 10% of 5.0V

100100200200

30075070015002.42.8240600

15003000250060008810002000

µsmsµsµs

1

1.5100

150

AmΩ

Parameter

Conditions

Min

Typ

Max

Units

70100mΩ

5003900Ω

VCC5VCC3VPP IN

Operating Input Voltage (5V)Operating Input Voltage (3.3V)Operating Input Voltage (12V)

VCC5 IN not required for operation(Note 6)

VPP IN not required for operation(Note 8)

—3.0—

5.03.312.0

6614.5

VVV

MIC2563A41997

MIC2563AMicrelElectrical Characteristics (continued)SymbolParameterConditionsMinTypMaxUnitsTHERMAL SHUTDOWNTSDThermal Shutdown Temperature130°CNOTE 1:NOTE 2:NOTE 3:NOTE 4:NOTE 5:NOTE 6:NOTE 7:NOTE 8:Functional operation above the absolute maximum stress ratings is not implied.Static-sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded toprevent damage from static discharge.RL = 100Ω connected to ground.RL = 10Ω connected to ground.Delay from commanding Hi Z or 0V to beginning slope. Does not apply to current limit or overtemperature shutdownconditions.The MIC2563A uses VCC3 IN for operation. For single 5V supply systems, connect 5V to both VCC3 IN and VCC5IN. See Applica-tions Information for further details.VPP IN is not required for operation.VPP IN must be either high impedance or greater than or approximately equal to the highest voltage VCC in the system. Forexample, if both 3.3V and 5V are connected to the MIC2563A, VPP IN must be either 5V, 12V, or high impedance.AVPPEnable0BCDEFGHJKVPP to 3.3VVPP to 12VVPP to 3.3VVPPOFFVPP to 5VVPP to 12VVPP to 5VVPP OFFVPP to 12VVPP OFFt13t7t9t8t10t6t1612VVPPOutputt1t3t2t4t11t5t15t125Vt143.3V0Figure 1. MIC2563A VPP Timing Diagram. VPP Enable is shown generically: refer to the timing tables (below). Attime “A” VPP = 3.3V is selected. At B, VPP is set to 12V. At C, VPP = 3.3V (from 12V). At D, VPP is disabled. At E, VPP isprogrammed to 5V. At F, VPP is set to 12V. At G, VPP is programmed to 5V. At H, VPP is disabled. At J, VPP is set to12V. And at K, VPP is again disabled. RL = 100Ω for all measurements. Load capacitance is negligible.19975MIC2563AMIC2563AAVCCEnable0MicrelBCDVCC to 3.3VVCC OFFVCC to 5VVCC OFFt15Vt2t4t3t7t5t8t63.3VVCCOutput0Figure 2. MIC2563A VCC Timing Diagram. VCC Enable is shown generically: refer to the timing tables (below) forspecific control logic input. At time A, VCC is programmed to 3.3V. At B, VCC is disabled. At C, VCC is programmedto 5V. And at D, VCC is disabled. RL = 10ΩMIC2563A-0 Control Logic Table VCC5_EN0000000011111111VCC3_EN0000111100001111EN10011001100110011EN00101010101010101VCC OUTClamped to GroundClamped to GroundClamped to GroundClamped to Ground3.33.33.33.355553.33.33.33.3VPP OUTHigh ZHigh ZHigh ZClamped to GroundHigh Z3.312Clamped to GroundHigh Z512Clamped to GroundHigh Z3.35Clamped to GroundMIC2563A61997MIC2563AMicrelMIC2563A-1 Control Logic (compatible with Cirrus Logic CL-PD6710 & PD672x-seriesControllers) VCC5_EN0000000011111111VCC3_EN0000111100001111VPP_PGM0011001100110011VPP_VCC0101010101010101VCC OUTClamped to GroundClamped to GroundClamped to GroundClamped to Ground55553.33.33.33.3Clamped to GroundClamped to GroundClamped to GroundClamped to GroundVPP OUTClamped to GroundHigh ZHigh ZHigh ZClamped to Ground512High ZClamped to Ground3.312High ZClamped to GroundHigh ZHigh ZHigh ZMIC2563A-2 Logic (Compatible with Databook Controllers)Pin 501010101VCCSEL0(1)VPPSEL0(1)VCCSEL2(3)1100110000001111Pin 6Pin 7Pins 2 & 14VCC OUTVPP OUTPin 13Clamped to GroundClamped to Ground3.3V3.3V3.3V12V3.3VClamped to GroundClamped to GroundClamped to Ground5V5V5V12V5VClamped to GroundThe Databook DB86184 PCMCIA controller requires two 100kΩ pull-down resistors from pins 5 and 7 toground and a 100kΩ pull-up resistor from pin 6 to +3.3V (or +5V). Connect MIC2560-2 pin 8 to ground.19977MIC2563AMIC2563AMicrelApplications Information

PC Card power control for two sockets is easily accom-plished using the MIC2563A PC Card/CardBus Slot VCC &VPP Power Controller IC. Four control bits per socket deter-mine VCC OUT and VPP OUT voltage and standby/operatemode condition. VCC outputs of 3.3V and 5V at the maximumallowable PC Card current are supported. VPP OUT outputvoltages of VCC (3.3V or 5V), VPP, 0V, or a high impedancestate are available. When the VCC clamped to ground condi-tion is selected, the device switches into “sleep” mode anddraws only nanoamperes of leakage current. Full protectionfrom hot switching is provided which prevents feedback fromthe VCC OUT (from 5V to 3.3V, for example) by locking out thelow voltage switch until the initial switch’s gate voltage dropsbelow the desired lower VCC.

The MIC2563A operates from the computer system mainpower supply. Device logic and internal MOSFET drive isgenerated internally by charge pump voltage multiplierspowered from VCC3 IN. Switching speeds are carefully con-trolled to prevent damage to sensitive loads and meet all PCCard Specification timing requirements.Supply Bypassing

External capacitors are not required for operation. TheMIC2563A is a switch and has no stability problems. For bestresults however, bypass VCC3 IN, VCC5 IN, and VPP INinputs with 1µF capacitors to improve output ripple. As allinternal device logic and comparison functions are poweredfrom the VCC3 IN line, the power supply quality of this line isthe most important, and a bypass capacitor may be neces-sary for some layouts. Both V and V pins may

CC OUTPP OUT

use 0.01µF to 0.1µF capacitors for noise reduction andelectrostatic discharge (ESD) damage prevention.PC Card Slot Implementation

The MIC2563A is designed for full compatibility with thePersonal Computer Memory Card International Associa-tion’s (PCMCIA) PC Card Specification, (March 1995), in-cluding the CardBus option.

When a memory card is initially inserted, it should receiveV — either 3.3V ± 0.3V or 5.0V ±5%. The initial voltage isCC

determined by a combination of mechanical socket “keys”and voltage sense pins. The card sends a handshaking datastream to the controller, which then determines whether ornot this card requires V and if the card is designed for dual

PP

V. If the card is compatible with and desires a different VCCCClevel, the controller commands this change by disabling V,

CC

waiting at least 100ms, and then re-enabling the other V

CC

voltage.

V switches are turned ON and OFF slowly. If commandedCC

to immediately switch from one V to the other (without

CC

turning OFF and waiting 100ms first), enhancement of thesecond switch begins after the first is OFF, realizing break-before-make protection. V switches are turned ON slowly

PP

and OFF quickly, which also prevents cross conduction.

If no card is inserted or the system is in sleep mode, the slot

IN, V IN) = (0,0) to thelogic controller outputs a (VCC3CC5

MIC2563A, which shuts down V. This also places the

CC

switch into a high impedance output shutdown (sleep) mode,where current consumption drops to nearly zero, with onlytiny CMOS leakage currents flowing.

Internal device control logic and MOSFET drive and bias

IN. The high voltage bias isvoltage is powered from V

CC3

generated by an internal charge pump quadrupler. Systemswithout 3.3V may connect VIN to 5V. Input logic thresh-CC3

old voltages are compatible with common PC Card logiccontrollers using either 3.3V or 5V supplies.

The PC Card Specification defines two V supply pins per

PP

card slot. The two V supply pins may be programmed to

PP

different voltages. V is primarily used for programming

PP

FLASH memory cards. Implementing two independent V

PP

voltages is easily accomplished with the MIC2563A and aMIC2557 PCMCIA V Switching Matrix. Figure 3 shows this

PP

full configuration, supporting independent V and both 5.0V

PP

and 3.3V V operation. However, few logic controllers

CC

support multiple V—most systems connect V to V

PPPP1PP2

and the MIC2557 is not required. This circuit is shown inFigure 4.

During Flash memory programming with standard (+12V)Flash memories, the PC Card slot logic controller outputs a(0 , 1) to the EN0, EN1 control pins of the MIC2563A, whichconnects V IN (nominally +12V) to V. The low ON

PPPP OUT

resistance of the MIC2563A switch allows using a smallbypass capacitor on the V pins, with the main filtering

PP OUT

action performed by a large filter capacitor on V IN (usually

PP

the main power supply filter capacitor is sufficient). Using asmall-value capacitor such as 0.1µF on the output causeslittle or no timing delays. The V transition from V to

PP OUTCC

12.0V typically takes 250µs. After programming is com-pleted, the controller outputs a (EN1, EN0) = (0,1) to theMIC2563A, which then reduces V to the V level.

PP OUTCC

Break-before-make switching action and controlled rise timesreduces switching transients and lowers maximum currentspikes through the switch.

Figure 5 shows MIC2563A configuration for situations whereonly a single +5V V is available.

CC

Output Current and Protection

MIC2563A output switches are capable of passing the maxi-mum current needed by any PC Card. The MIC2563A meetsor exceeds all PCMCIA specifications. For system and cardprotection, output currents are internally limited. For fullsystem protection, long term (millisecond or longer) outputshort circuits invoke overtemperature shutdown, protectingthe MIC2563A, the system power supplies, the card socketpins, and the PC Card.

MIC2563A81997

MIC2563A5VSystemPower3.3VSupply12V(opt)VPPINVCC3INVCC5IN(opt)Micrel5VSystemPower3.3VSupply12V(opt)(opt)(opt)VPP1VPP2PCMCIACard SlotAVCCPCMCIACard SlotControllerVPP1VPPINVCC3INVCC5IN(opt)(opt)VPP1VPP2PCMCIACard SlotAVCCEN0EN1VCC5_ENVCC3_ENA EN0A EN1A VCC5_ENA VCC3_ENMIC2563PCMCIACard SlotControllerMIC2563VPP1B EN0B EN1B VCC5_ENB VCC3_ENPCMCIAVPP2PCMCIACard SlotCard SlotBVCCEN0EN1VCC5_ENVCC3_ENPCMCIAVPP2PCMCIACard SlotCard SlotBVCCEN0EN1MIC2558EN0EN1Figure 3. PC Card slot power control application withdual VCC (5.0V or 3.3V) and separate VPP1 and VPP2.Figure 4. Typical PC Card slot power control applicationwith dual VCC (5.0V or 3.3V). Note that VPP1 and VPP2 aredriven together.5VSystemPowerSupply12V(opt)VPPINVCC3INVCC5IN(opt)VPP1VPP2PCMCIACard SlotAVCCA EN0A EN1A VCC5_ENPCMCIACard SlotControllerA VCC3_ENMIC2563VPP1B EN0B EN1B VCC5_ENB VCC3_ENPCMCIAVPP2PCMCIACard SlotCard SlotBVCCFigure 5. PC Card slot power control application without a 3.3V VCC supply. Note that VCC3 IN and VCC5 IN lines are driventogether. The MIC2563A is powered from the VCC3 IN line. In this configuration, VCC OUT will be 5V when either VCC3 or VCC5is enabled.19979MIC2563AMIC2563ARST#VCCMicrel20SER_DATA2DQ191 CLR474x175DQ9 CLK2A_VPP_PGM (Pin 8)3DQ185DQ7A_VPP_VCC (Pin 7)4DQ1712DQ10A_VCC5_EN (Pin 5)5DQ1613DQ15A_VCC3_EN (Pin 6)6DQ154DQ2B_VPP_PGM (Pin 22)7DQ145DQ7B_VPP_VCC (Pin 21)8DQ1312DQ10B_VCC3_EN (Pin 19)9DQ1210113DQ15B_VCC5_EN (Pin 20)SER_CLK1174x5741 CLR74x1759 CLKSER_LATCHFigure 6. Interfacing the MIC2563A with a serial-output data controller. Pinouts shown are for the MIC2563A-1and a three-wire serial controller.Serial ControlFigure 6 shows conversion from a three-wire serial interface,such as used by the Cirrus Logic CL-PD6730, to the standardeight-line parallel interface used by the MIC2563A-1. Thisinterface requires three common, low cost 7400-series logicICs:• 74x574 Octal D Flip-Flop• 74x175 Quad Flip-Flop with Latches (two needed)Either 3.3V or 5V logic devices may be used, depending uponthe control voltage employed by the slot logic controller. Pinnumbers in parenthesis refer to the MIC2563A-1BSM.Gerber™ files for this P.C. board layout are available to Micrelcustomers. Please contact Micrel directly.Another serial-to-parallel solution for this application is the74HC594, 8-bit shift register with output registers. This de-vice contains the eight D flip-flops plus has latched outputssuitable for this purpose.Component KeyU1.............MIC2563U2, U3......74x175U4.............74x574Serial Control Adapter P.C. Board LayoutMIC2563A101997MIC2563AMicrel199711MIC2563A

MIC2563AMicrelPackage Information5.40 (0.213)5.20 (0.205)7.90 (0.311)7.65 (0.301)DIMENSIONS:MM (INCH)0.875 (0.034) REF10.33 (0.407)10.07 (0.396)2.00 (0.079)1.73 (0.068)10°4°0.22 (0.009)0.13 (0.005)0.38 (0.015)0.25 (0.010)0.65 (0.0260) BSC0.21 (0.008)0.05 (0.002)COPLANARITY:0.10 (0.004) MAX0°–8°1.25 (0.049) REF0.95 (0.037)0.55 (0.022)28-Pin SSOP (SM)MICREL INC.1849 FORTUNE DRIVESAN JOSE, CA95131USATEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.comThis information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents orother rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.© 1997 Micrel IncorporatedMIC2563A121997