參數(shù)資料
型號： MIC2592B-3YTQ
廠商： MICREL INC
元件分類： 電源管理
英文描述： Dual-Slot PCI Express Hot-Plug Controller
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48
封裝： LEAD FREE, TQFP-48
文件頁數(shù)： 7/31頁
文件大小： 1916K
代理商： MIC2592B-3YTQ
March 2005
7
M9999-033105
MIC2592B
Absolute Maximum Ratings
(1)
Supply Voltages
12VIN[A/B] ...............................................................14V
3VIN[A/B], VSTBY[A/B] ...............................................7V
Any Logic Pin ........................ –0.5V (min) to 3.6V (max)
Output Current (/FAULT[A/B], /INT, SDA) .................. 10mA
Power Dissipation ....................................Internally Limited
Lead Temperature
(IR Reflow, Peak Temperature) .......240°C +0°C/–5°C
Pb-Free Package (-xYTQ)
(IR Reflow, Peak Temperature) .......260°C +0°C/–5°C
Storage Temperature ............................... –65°C to +150°C
ESD Rating
(
3)
Micrel
Operating Ratings
(2)
Supply Voltages
12VIN[A/B] ................................................11.0V to 13.0V
3VIN[A/B] ......................................................3.0V to 3.6V
VSTBY[A/B] ..................................................3.0V to 3.6V
Ambient Temperature (T ) ............................. 0°C to + 70°C
Junction Temperature (T
J
) ......................................... 125°C
Package Thermal Resistance
TQFP
(θ
JA
)
......................................................................
56.5°C/W
Electrical Characteristics
(4)
12V
IN[A/B]
= 12V, 3V
IN[A/B]
= 3.3V, V
STBY[A/B]
full operating temperature range from 0°C to +70°C.
Power Control and Logic Sections
I
CC12
I
CC3.3
I
CCSTBY
V
V
UVLO(3V)
V
UVLO(STBY)
V
HYSUV
IN
, 3V
IN
V
HYSSTBY
STBY[A/B]
Power-Good Undervoltage Thresholds
V
V
UVTH(3V)
V
UVTH(VAUX)
V
HYSPG
V
GATE(12V)
I
GATE(12VSINK)
12VGATE Sink Current
I
V
GATE(3V)
I
GATE(3VCHARGE)
I
GATE(3VSINK)
CFILTER[A/B] Overcurrent Delay Time, Pin 20 (RFILTER[A&B]) Floating or NC
V
FILTER
I
FILTER
CFILTER[A/B] Charging Current
Delay ms
I
FILTER
= 3.3V, T = 25°C, unless otherwise noted.
Bold
indicates specification applies over the
Condition
Min
Typ
Max
Units
IN[A/B]
increasing
IN[A/B]
increasing
STBY[A/B]
increasing
180
5
1
5
10
2.75
3.0
mA
8
V
UVLO(12V)
2.2
2.8
mV
50
mV
OUT[A/B]
decreasing
OUT[A/B]
decreasing
AUX[A/B]
decreasing
Start Cycle
10.2
2.7
2.7
0
15
–20
30
10.8
2.9
2.9
1.5
35
V
UVTH(12V)
mA
GATE
= 2.5V
V
GATE(12VPULLUP)
DD
–V
GATE
) = 2.5V
12V
IN
–1.5
15
40
12V
IN
35
mA
12VIN
– V
12VSENSE
> V
THILIMIT
and/or
V
3VIN
– V
3VSENSE
> V
THILIMIT
1.20
1.80
2.5
1.30
5.0
V
μA
C
F
V
(V)
A
FILTER
FILTER
10
3
Notes:
1.
2.
3.
4.
Exceeding measurements given within the “Absolute Maximum Ratings” section may damage the device.
The device is not guaranteed to function outside of the measurements given in the “Operating Ratings" section.
Devices are ESD sensitive. Employ proper handling precautions. The human body model is 1.5kΩ in series with 100pF.
Specification for packaged product only.
Symbol
Parameter
CFILTER[A/B] Threshold Voltage
V
1.25
3VIN[A/B]
VSTBY[A/B]
3V
V
9
2.5
2.9
Undervoltage Lockout Hysteresis
12V
V
3VOUT[A/B]
VAUX[A/B]
3V
V
12VGATE Voltage
12VGATE Pull-up Current (Fault Off) Any fault condition
3VGATE Voltage
3VGATE Charge Current
3VGATE Sink Current (Fault Off)
mV
V
μA
Any fault condition
12VIN[A/B]
12V
2.5
Undervoltage Lockout Hysteresis
12VOUT[A/B]
12V
(V
Start Cycle
Undervoltage Lockout Thresholds
0.5
Power-Good Detect Hysteresis
Supply Current
2.5
10.5
2.8
2.8
25
25
mA
mA
V
V
V
V
V
μA
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