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參數(shù)資料
| 型號： | LTC4223CDHD-2#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 290K |
| 描述： | IC CNTRLR HOT SWAP DUAL 16-DFN |
| 標(biāo)準(zhǔn)包裝： | 73 |
| 類型： | 熱交換控制器 |
| 應(yīng)用： | ATCA，MicroTCA? |
| 內(nèi)部開關(guān)： | 無 |
| 電源電壓： | 2.7 V ~ 6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 16-DFN（5x4） |
| 包裝： | 管件 |
LTC4223-1/LTC4223-2
16
422312f
APPLICATIONS INFORMATION
GATE Pin Voltage
The gate drive at 12V
GATE
is compatible with any logic
level MOSFET. The guaranteed range of gate drive is 4.5V
to 7.9V, with a typical of 6.2V.
Active Current Loop Compensation
The compensation network consisting of resistor R
G
and
gate slew rate control capacitor C
G
stabilizes the internal
active current limit circuit. The value of C
G
is selected based
on the inrush current allowed. The suggested value for
R
G
is 47? The value of C
G
should be d330nF and R
G
is
between 10?and 100?for optimum performance.
High Side Current Sense
The 12V load current is monitored via the voltage across an
external sense resistor. The LTC4223 features a high side
current sense ampli er that translates the sense voltage
from the positive rail to the negative rail using a resistor
ratio of 33 times. The output voltage at 12IMON pin can
then be fed into an LTC1197L ADC as shown in Figure 10
for data conversion. The current sense information can be
used by the system controller to manage the power budget
allocated to the modules on the card. Full scale input to
the current sense ampli er is 82.5mV, corresponding to
an output of about 2.7V. If the input exceeds 100mV, the
output clamps at 3.2V.
V
CC
Supply Filtering
The internal circuitry of the LTC4223 is powered from the
V
CC
pin. Bypass V
CC
with at least 330nF to ground. If V
CC
is derived from the same supply as is AUXIN, include a
decoupling resistor as shown in Figure 11. This RC net-
work allows the V
CC
pin to ride out supply glitches caused
by short circuits on the auxiliary output or on adjacent
boards, thus preventing an undervoltage lockout condi-
tion on V
CC
. Since the absolute maximum rating for V
CC
is 7V as compared to 10V for AUXIN, select R2 and C2 to
keep the peak voltage seen by V
CC
below 7V during any
voltage spikes.
FAULT
TIMER
I
AUXOUT
12V
OUT
V
TMR
V
TMR
V
TMR
V
TMR
422312 F08
10糀
1
2
3
4
5 6 7
8
9
10
2糀
FAULT PULLS LOW DUE TO AUX
OVERCURRENT FAULT AFTER POWER UP
START OF COOL-OFF CYCLE
START OF
DEBOUNCE CYCLE
RESET FAULT HIGH
FAULT PULLS LOW AND RESTART OF
COOL-OFF CYCLE DURING POWER UP
END OF DEBOUNCE CYCLE
START AUX INTERNAL GATE RAMP WHEN STARTUP CONDITIONS ARE MET
AUX OUTPUT IN CURRENT LIMIT
RESTART OF
DEBOUNCE CYCLE
COOL-OFF CYCLE
DEBOUNCE CYCLE
FILTER DELAY
COOL-OFF CYCLE
2糀
2糀
2糀
10糀
10糀
10糀
10糀
AUX INTERNAL GATE REGULATES
Figure 8. Auto-Retry after AUX Overcurrent Fault
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4223CDHD-2TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card |
| LTC4223CGN-1#PBF | 功能描述:IC CNTRLR HOT SWAP DUAL 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4223CGN-1#TRPBF | 功能描述:IC CNTRLR HOT SWAP DUAL 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4223CGN-1PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card |
| LTC4223CGN-1TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card |
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