參數(shù)資料
型號(hào)： MIC2585-2MBTS TR
廠商： Micrel Inc
文件頁(yè)數(shù)： 3/28頁(yè)
文件大?。?/td> 273K
描述： IC CTRLR HOT SWAP DUAL 24-TSSOP
標(biāo)準(zhǔn)包裝： 2,500
類型： 熱交換控制器
應(yīng)用： 通用
內(nèi)部開(kāi)關(guān)： 無(wú)
電源電壓： 1 V ~ 13.2 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 24-TSSOP
包裝： 帶卷 (TR)
其它名稱： MIC2585-2MBTSTR
MIC2585-2MBTSTR-ND
March 2005
3
MIC2584/2585
MIC2584/2585
Micrel
Pin Configuration
1
VCC2
SENSE2
GATE2
OUT2
FB2
ON
CPOR
CFILTER
16  VCC1
SENSE1
GATE1
OUT1
FB1
/POR
/FAULT
GND
15
14
13
12
11
10
9
2
3
4
5
6
7
8
MIC2584
16-Pin TSSOP (TS)
CDLY
GND
13
12
CFILTER
/FAULT
14
11
1
VCC2
SENSE2
GATE2
OV2
OUT2
DIS2
FB2
ON
TRK
CPOR
24  VCC1
SENSE1
GATE1
OV1
OUT1
DIS1
FB1
PG1
PG2
/POR
23
22
21
20
19
18
17
16
15
2
3
4
5
6
7
8
9
10
MIC2585
24-Pin TSSOP (TS)
Pin Description
Pin Number
Pin Number
Pin Name
Pin Function
MIC2584
MIC2585
16
24
VCC1
Positive Supply (Input), Channel 1:  This input is the main supply to the
internal circuitry and must be in the range of 2.3V to 13.2V. The GATE1 pin
is held low by an internal undervoltage lockout circuit until V
CC1
 and V
CC2
exceed their respective undervoltage lockout threshold of 2.165V and 0.8V.
This input is protected up to 20V.
1
1
VCC2
Positive Supply (Input), Channel 2:  The GATE2 pin is held low by an
internal undervoltage lockout circuit until V
CC1
 and V
CC2
 exceed their
respective undervoltage lockout threshold of 2.165V and 0.8V. This input
must be in the range of 1.0V to 13.2V and less than or equal to V
CC1
. This
input is protected up to 20V.
2, 15
2, 23
SENSE2, SENSE1    Circuit Breaker Sense (Inputs): A resistor between this pin and VCC1 and
VCC2 sets the current limit threshold for each channel. Whenever the
voltage across either sense resistor exceeds the slow trip current limit
threshold (V
TRIPSLOW
), the GATE voltage is adjusted to ensure a constant
load current. If V
TRIPSLOW
 (50mV) is exceeded for longer than time period
t
OCSLOW
, then the circuit breaker is tripped and both GATE outputs are
immediately pulled low. If the voltage across either sense resistor exceeds
the fast trip circuit breaker threshold, V
TRIPFAST
, at any point due to fast,
high amplitude power supply faults, then both GATE outputs are immediately
brought low without delay. To disable the circuit breaker for either channel,
the SENSE and VCC pins can be tied together.
The default V
TRIPFAST
 for either device is 100mV. Other fast trip thresholds
are available: 150mV, 200mV, or OFF (V
TRIPFAST
 disabled). Please contact
factory for availability of other options.
6
8
ON
Enable (Input):  Active High. The ON pin, an input to a Schmitt-triggered
comparator used to enable/disable the controller, is compared to a 1.235V
reference with 25mV of hysteresis. When a logic high is applied to the ON
pin (V
ON
 > 1.235V), a start-up sequence begins when the GATE1 and
GATE2 pins begin ramping up towards their final operating voltage. When
the ON pin receives a logic low signal (V
ON
 < 1.21V), the GATE pins are
grounded and /FAULT remains high if both inputs are above their respective
UVLO thresholds. The ON pin must be low for at least 20祍 in order to
initiate a start-up sequence. Additionally, toggling the ON pin LOW to HIGH
resets the circuit breaker.
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