MIC2566 [MIC]
Single-Slot PC Card/CardBus Power Controller Preliminary; 单槽PC卡/ CardBus的电源控制器初步
| 型号： | MIC2566 |
| 厂家： | 
MIC GROUP RECTIFIERS |
| 描述： | Single-Slot PC Card/CardBus Power Controller Preliminary |
| 文件： | 总10页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MIC2566
Single-Slot PC Card/CardBus Power Controller
Preliminary
General Description
Features
TheMIC2566single-slotPCCard/CardBuspowercontroller
is a V and V power switch matrix that supports 3.3V and
• Complete single-slot power switch solution
• No external components required
CC
PP
5V PC Card (PCMCIA) slot power supply pins.
• Output current limit and thermal shutdown
• Ultra-low power consumption
TheMIC2566canswitchPCCardslotV voltagesbetween
CC
• Compatible with standard PC Card logic controllers
• Break-before-make switching (no transients)
• Digital V and V voltage selection
0V (ground), 3.3V and 5.0V and V voltages between 0V
PP
(ground), 3.3V, 5V, or high impedance at output currents of
up to 1A for V and 200mA for V . The MIC2566 features
CC
PP
CC
PP
• > 1A V output current per slot
well-controlled voltage rise and fall times. Each MIC2566
output voltage is switched by two digital inputs, typically
controlled from a separate PC Card logic controller.
CC
• > 120mA V output current per slot
PP
• 14-pin SOP and TSSOP package
• Pb-free SO package
• UL recognized, file #179633
The MIC2566 is designed for efficient operation. In standby
(sleep) mode the device draws very little quiescent current,
typically only 0.3µA. The power controller includes thermal
shutdown and protects itself and its PC Card ports with
current limiting. Full cross-conduction lockout protects the
system power supplies.
Applications
• Single-slot PC Card power supply voltage switch
• CardBus slot power supply control
• Data collection systems
The MIC2566 is available in 14-pin SOP and TSSOP
packages.
• Machine control data input systems
• Wireless communications
• Bar code data collection systems
• Instrumentation configuration/datalogging
• Portable and desktop computer docking stations
• Power supply management
• Power analog switching
Typical Application
5V
System
Power
Supply
3.3V
V
IN
V
IN
CC3
CC5
(optional)
V
V
PP1
EN0
EN1
PP2
PCMCIA
Card Slot
MIC2566
V
CC
V
PCMCIA
Card Slot
Controller
CC5_EN
V
CC3_EN
UL Recognized Component
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
May 2003
1
MIC2566
MIC2566
Micrel
Ordering Information
Operating
Part Number
Temp. Range
Package
14-pin SOP
14-pin SOP
14-pin SOP
14-pin SOP
14-pin TSSOP
14-pin TSSOP
Pb-Free
MIC2566-0BM
MIC2566-1BM
MIC2566-0YM
MIC2566-1YM
MIC2566-0BTS
MIC2566-1BTS
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
X
X
Pin Configuration
Pin Description
Pin Number
MIC2566-0
Pin Number
MIC2566-1
Pin Name
Pin Function
1
2
3
1
2
VCC5 EN
VCC3 EN
EN0
VCC 5V Enable (Input).
VCC 3.3V Enable (Input).
Enable 0: Micrel standard logic-control signal. MIC2566-0 only.
3
VPP_VCC
VPP_VCC Control: Cirrus Logic logic-controller compatible control signal.
MIC2566-1 only.
4
5
EN1
Enable 1: Micrel standard logic-control signal. MIC2566-0 only.
Program: Cirrus Logic-compatible control signal. MIC2566-1 only.
4
5
VPP_PGM
/FLAG
Error Flag: This pin requires a pull-up resistor (10kΩ recommended) to
VCC3IN or VCC5IN.
6
7
9
6
7
9
NC
Not internally connected.
VPP OUT
VCC3 IN
VPP Output: 0V (ground), 3.3V, 5V, or high-impedance output.
3.3V-Nominal Supply Input: Mandatory supply, switchable to VCC and VPP
outputs. Also powers MIC2566 internal circuitry.
8, 10, 12
11, 13
8, 10, 12
11, 13
14
V
CC OUT
VCC Output: 0V (ground), 3.3V, 5V, or high-impedance output. Pins 8, 10,
and 12 must be externally connected.
VCC5 IN
GND
5V-Nominal Supply Input: Optional supply, switchable to VCC and VPP
outputs. Pins 11 and 13 must be externally connected.
14
Ground.
MIC2566
2
May 2003
MIC2566
Micrel
Absolute Maximum Ratings (Note 1)
Operating Ratings (Note 2)
V
V
V
V
V
V
IN.......................................................................+6.0V
IN.......................................................................+6.0V
V
V
V
V
V
IN........................................................ +3.0V to +5.5V
IN............................................................. 0V to +5.5V
CC3
CC5
EN0
FLAG
CC3
CC5
EN0
, V
, V
, V
............................–0.3V to +6.0V
, V
, V
, V
.................................. 0V to +5.5V
EN1
CC5EN
CC3EN
EN1
CC5EN
CC3EN
.........................................................................+6.0V
OUT............................................................0 to 120mA
OUT ..................................................................0 to 1A
PP
CC
OUT................................... >120mA, Internally Limited
OUT ......................................... >1A, Internally Limited
PP
Clock Frequency .................................................0 to 2MHz
CC
Power Dissipation at T ≤ 25°C (P ) ....... Internally Limited
Ambient Temperature (T ) ......................... –40°C to +85°C
A
D
A
Storage Temperature ............................... –65°C to +150°C
Lead Temperature (5 sec.)...................................... +260°C
ESD Rating, Note 3
Junction Temperature (T ) ...................................... +125°C
J
Package Thermal Resistance (θ
)
JA
SOP .................................................................90°C/W
TSSOP ............................................................83°C/W
Electrical Characteristics (Note 4)
Specified over operating ambient temperature range of –40°C to +85°C with VCC3 IN = 3.3V, VCC5 IN = 5.0V, unless otherwise
specified.
Symbol
Parameter
Condition
Min
Typ
Max
Units
DIGITAL INPUTS (VEN0, VEN1, VCC3EN, VCC5EN
)
VIH
Logic 1 Input Voltage
Logic 0 Input Voltage
Input Current
0.7xV IN
CC3
5.5
V
V
VIL
–0.3
0.3xV IN
CC3
IIN
0 V < VIN < 5.5V
±2
µA
VPP OUTPUT
IPP OUT
Hi-Z
High Impedance Output
Leakage Current
Shutdown Mode
0 ≤ VPP OUT ≤ 5V
1
10
µA
IPPSC
RO
Short Circuit Current Limit
Switch Resistance
VPP OUT = 0V
0.12
0.4
A
Select VPP OUT = 5V
Select VPP OUT = 3.3V
IPP OUT = –100mA (Sourcing)
1.4
1.5
3
4
Ω
Ω
RO
Switch Resistance,
Select VPP OUT = 0V
Select VPP OUT = clamped to ground
IPP OUT = 50µA (Sinking)
1300
3900
Ω
VPP SWITCHING TIME (See Figure 1)
t1
t2
Output Turn-On Delay
Note 5
VPP OUT = Hi-Z to 10% of 3.3V
VPP OUT = Hi-Z to 10% of 5V
5
10
50
50
µs
µs
t3
t4
Output Rise Time
Note 5
VPP OUT = 10% to 90% of 3.3V
VPP OUT = 10% to 90% of 5V
100
100
200
300
800
1000
µs
µs
t5
t6
Output Turn-Off Delay Time
Note 5
VPP OUT = 3.3V to Hi-Z
VPP OUT = 5V to Hi-Z
400
400
1000
1000
ns
ns
t7
t8
Output Turn-Off Fall Time
Note 5
VPP OUT = 90% to 10% of 3.3V
VPP OUT = 90% to 10% of 5V
50
50
1000
1000
ns
ns
VCC OUTPUT
ICCSC
RO
Short Circuit Current Limit
Switch Resistance
VCC OUT = 0V
1
1.5
A
Select VCC OUT = 3.3V
120
180
135
mΩ
I
CC OUT = –1A (Sourcing)
Select VCC OUT = 5V
CC OUT = –1A (Sourcing)
90
mΩ
I
Select VCC OUT = clamped to ground
ICC OUT = 1mA (Sinking)
1800
3900
Ω
May 2003
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MIC2566
MIC2566
Micrel
Electrical Characteristics (continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
VCC SWITCHING TIME (See Figure 2)
t9
t10
Output Turn On Delay Time
Note 6
VCC OUT = 0V to 10% of 3.3V
VCC OUT = 0V to 10% of 5.0V
200
350
1500
3000
µs
µs
t11
Output Rise Time
Note 6
VCC OUT = 10% to 90% of 3.3V
200
200
700
2500
t12
t13
VCC OUT = 10% to 90% of 5V
VCC OUT = 3.3V
1500
0.65
6000
2
µs
Output Turn-Off Delay
ms
Notes 6, 7
t14
t15
VCC OUT = 5V
0.7
2
ms
Output Fall Time
Note 6
VCC OUT = 90% to 10% of 3.3V
100
100
300
1000
µs
t16
VCC OUT = 90% to 10% of 5.0V
600
2000
µs
POWER SUPPLY
ICC5 VCC5 IN Supply Current (5V)
VCC OUT = 5V or 3.3V, ICC OUT = 0
VCC OUT = 0V (Sleep Mode)
8
0.2
50
10
µA
µA
ICC3
VCC3 IN Supply Current (3.3V)
Note 8
VCC OUT = 5V or 3.3V, ICC OUT = 0
VCC OUT = 0V (Sleep Mode)
40
0.1
100
10
µA
µA
VCC5
VCC3
Operating Input Voltage (5V)
Operating Input Voltage (3.3V)
VCC5 IN not required for operation
5.0
3.3
5.5
5.5
V
V
Note 8
3.0
THERMAL SHUTDOWN
TSD
Thermal Shutdown Temperature
130
°C
FLAG OUTPUT
IFLAGLK
VOL
Error FLAG Off Current
VFLAG = 5V
4
µA
FLAG Output Low Voltage
VCCx IN – VCC OUT > 1V
1mA pull-up from FLAG to VCCx IN
0.4
V
Note 1. Exceeding the absolute maximum rating may damage the device.
Note 2. The device is not guaranteed to function outside its operating rating.
Note 3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Note 4. Specification for packaged product only.
Note 5. R = 100Ω connected to ground.
L
Note 6. R = 10Ω connected to ground.
L
Note 7. Delay from commanding Hi Z or 0V to beginning slope. Does not apply to current limit or overtemperature shutdown conditions.
Note 8. The MIC2566 uses V
for operation. For single 5V supply systems, connect 5V to both V
and V
. See “Applications Informa-
CC5IN
CC3 IN
CC3 IN
tion” for further details.
MIC2566
4
May 2003
MIC2566
Micrel
Timing Diagram
A
B
C
D
VPP
Enable
0
VPP
OFF
VPP
OFF
VPP to 3.3V
VPP to 5V
t5
t2
t6
VPP
OUT
t4
t8
t3
t7
t1
5V
3.3V
0
FLAG
0
Figure 1. MIC2566 V Timing Diagram
PP
Note.
V
PP
Enable is shown generically. Refer to the logic tables on the next page for specific control logic input. At time A, V = 3.3V. At B, V is
PP
PP
disabled. At C, V is programmed to 5V. At D, V is disabled. R = 100Ω for all measurements. Load capacitance is negligible.
PP
PP
L
A
B
C
D
VCC
Enable
VCC OFF
VCC to 3.3V
VCC to 5V
VCC OFF
0
t9
t10
t16
t12
t14
5V
t11
t15
t13
3.3V
VCC
OUT
0
FLAG
0
Figure 2. MIC2566 V Timing Diagram
CC
Note.
V
CC
Enable is shown generically. Refer to the logic tables on the next page for specific control logic input. At time A, V is programmed to
CC
3.3V. At B, V is disabled. At C, V is programmed to 5V. And at D, V is disabled. R = 100Ω. FLAG pull-up resistor is 10kΩ to V IN.
CC
CC
CC
L
CC3
May 2003
5
MIC2566
MIC2566
Micrel
MIC2566-0 Control Logic Table
V
V
EN1
EN0
V
V
PP OUT
CC5_EN
CC3_EN
CC OUT
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Clamped to Ground
Clamped to Ground
Clamped to Ground
High Z
High Z
High Z
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Clamped to Ground Clamped to Ground
3.3
3.3
3.3
3.3
5
High Z
3.3
High Z
Clamped to Ground
High Z
5
5
5
High Z
5
Clamped to Ground
3.3
3.3
3.3
3.3
High Z
3.3
5
Clamped to Ground
MIC2566-1 Control Logic
(Compatible with Cirrus Logic CL-PD6710 & PD672x-Series Controllers)
V
V
V
V
V
V
PP OUT
CC5_EN
CC3_EN
PP_PGM
PP_VCC
CC OUT
0
0
0
0
Clamped to Ground Clamped to Ground
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Clamped to Ground
High Z
Clamped to Ground
High Z
Clamped to Ground
High Z
5
5
Clamped to Ground
5
High Z
5
5
High Z
3.3
3.3
3.3
3.3
Clamped to Ground
3.3
High Z
High Z
Clamped to Ground Clamped to Ground
Clamped to Ground
Clamped to Ground
Clamped to Ground
High Z
High Z
High Z
MIC2566
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May 2003
MIC2566
Micrel
Functional Diagram
EN1
EN0
VPP OUT
MIC2566
Control
Logic
VCC5_EN
VCC OUT
VCC5_EN
FLAG
VCC3 IN
VCC5 IN
I
/ Thermal
Limit
Shut Down
Gate Drive
Generator
May 2003
7
MIC2566
MIC2566
Micrel
stream to the controller, which then determines whether or
Applications Information
not this card requires V and if the card is designed for dual
PP
PC Card V and V control is easily accomplished using
CC
PP
V
. If the card is compatible with and desires a different V
CC
CC
the MIC2566 PC Card/CardBus Slot V
Controller IC. Four control bits determine V
and V Power
CC
PP
CC OUT
level, the controller commands this change by disabling V
,
CC
and
waiting at least 100ms, and then re-enabling the other V
voltage.
CC
V
voltage and standby/operate mode condition. V
PP OUT
CC
outputs of 3.3V and 5V at the maximum allowable PC Card
current are supported. V output voltages of V (3.3V
V
switches are turned ON and OFF slowly. If commanded
CC
PP OUT
CC
to immediately switch from one V
to the other (without
CC
or 5V), 0V or a high impedance state are available. When the
clamped to ground condition is selected, the device
turning OFF and waiting 100ms first), enhancement of the
second switch begins after the first is OFF, realizing break-
V
CC
switches into “sleep” mode and draws only nanoamperes of
leakage current. An error flag alerts the user if the output
voltage is too low because of overtemperature or overcurrent
faults. Protection from hot switching is provided which pre-
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
logic controller outputs a (V
MIC2566, which shuts down V . This also places the switch
into a high impedance output shutdown (sleep) mode, where
current consumption drops to nearly zero, with only tiny
CMOS leakage currents flowing.
IN, V
IN) = (0,0) to the
CC5
vents feedback from the V
example) by locking out the low voltage switch until the initial
switch’s gate voltage drops below the desired lower V
(from 5V to 3.3V, for
CC3
CC OUT
CC
.
CC
The MIC2566 operates from the computer system main
power supply. Device logic and internal MOSFET drive is
generated internally by charge pump voltage multipliers
Internal device control logic and MOSFET drive and bias
voltage is powered from V
IN. The high voltage bias is
powered from V
IN. Switching speeds are carefully con-
CC3
CC3
generated by an internal charge pump quadrupler. Systems
without3.3VmayconnectV INto5V.Inputlogicthreshold
trolled to prevent damage to sensitive loads and meet all PC
Card Specification speed requirements.
CC3
voltages are compatible with common PC Card logic control-
lers using either 3.3V or 5V supplies.
Supply Bypassing
External capacitors are not required for operation. The
MIC2566 is a switch and has no stability problems. For best
resultshowever, bypassV
capacitorstoimproveoutputripple.Asallinternaldevicelogic
andcomparisonfunctionsarepoweredfromtheV INline,
the power supply quality of this line is the most important, and
Figure 3 shows MIC2566 configuration for situations where
only a single +5V V is available.
CC
INandV
INinputswith1µF
CC3
CC5
Output Current and Protection
MIC2566 output switches are capable of passing the maxi-
mum current needed by any PC Card. For system and card
protection, output currents are internally limited. For full
system protection, long term (millisecond or longer) output
short circuits invoke overtemperature shutdown, protecting
the MIC2566, the system power supplies, the card socket
pins, and the PC Card. A final protective feature is the error
FLAG, which signals the PC Card slot logic controller when
a fault condition exists, allowing the controller to notify the
user that the card inserted has a problem. The open-drain
CC3
a bypass capacitor may be necessary for some layouts. Both
V
and V
pins may use 0.01µF to 0.1µF capaci-
CC OUT
PP OUT
tors for noise reduction and electrostatic discharge (ESD)
damage prevention. Larger values of output capacitors are
not necessary.
PC Card Slot Implementation
TheMIC2566isdesignedforPCCardapplications, including
the CardBus option, that do not require a 12V bias. One
MIC2566 is required for each PC Card slot.
FLAG monitors the voltage level on both V
and
CC OUT
V
and activates (pulls low) when either output is 1V
PP OUT
When a memory card is initially inserted, it should receive
below its programmed level or an overtemperature fault
exists.
V
— either 3.3V ± 0.3V or 5.0V ±5%. The initial voltage is
CC
determined by a combination of mechanical socket “keys”
and voltage sense pins. The card sends a handshaking data
This FLAG signals output voltage transitions as well as fault
conditions. Refer to Figures 1 and 2 for details.
MIC2566
8
May 2003
MIC2566
Micrel
System
Power
Supply
5V
V
IN
V
IN
CC3
CC5
V
V
PP1
EN0
EN1
PCMCIA
Card Slot
PP2
MIC2566
V
CC
V
PCMCIA
Card Slot
Controller
CC5_EN
V
CC3_EN
Figure 3. PC Card Slot Power Control Application Without an Available 3.3V V
CC
Note that V
when either V
and V
or V
are driven together. The MIC2566 is powered by the V
is enabled from the logic table. Take advantage of the lower switch resistance of the V
line. In this configuration, V
will be 5V
CC OUT
CC3 IN
CC5 IN
CC3 IN
switch by using the
CC3
CC5
CC5
V
control as your main V switch.
CC5_EN
CC
May 2003
9
MIC2566
MIC2566
Micrel
Package Information
PIN 1
DIMENSIONS:
INCHES (MM)
0.154 (3.90)
0.026 (0.65)
MAX)
0.193 (4.90)
0.050 (1.27) 0.016 (0.40)
TYP TYP
45°
0.006 (0.15)
3°–6°
0.244 (6.20)
0.228 (5.80)
0.344 (8.75)
0.337 (8.55)
SEATING
PLANE
0.057 (1.45)
0.049 (1.25)
14-Pin SOP
4.50 (0.177)
4.30 (0.169)
DIMENSIONS:
MM (INCH)
6.4 BSC (0.252)
0.30 (0.012)
0.19 (0.007)
5.10 (0.200)
4.90 (0.193)
0.20 (0.008)
0.09 (0.003)
1.10 MAX (0.043)
0.65 BSC
(0.026)
1.00 (0.039) REF
8°
0°
0.15 (0.006)
0.05 (0.002)
0.70 (0.028)
0.50 (0.020)
14-Pin TSSOP
MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.com
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2003 Micrel, Incorporated.
MIC2566
10
May 2003
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