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參數(shù)資料
| 型號： | MCP18480 |
| 廠商： | Microchip Technology Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | -48V Hot Swap Controller |
| 中文描述： | - 48V熱插拔控制器 |
| 文件頁數(shù)： | 2/64頁 |
| 文件大?。?/td> | 871K |
| 代理商： | MCP18480 |
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MCP18480
DS20091B-page 2
2003 Microchip Technology Inc.
Internal comparators are incorporated to add hystere-
sis for adjusting the Undervoltage Lockout (UVLO)
threshold. The external N-channel MOSFET is turned
on when the input is below the user-programmable,
Overvoltage
threshold
programmable, Undervoltage threshold.
and
above
the
user-
The PWRGOOD pin indicates the status of the
MCP18480 and is active when the device has com-
pleted power-up and the system is not in an Undervolt-
age, Overvoltage or current-limit condition.
PWRGOOD can be externally configured to either
active-high or active-low to accommodate external cir-
cuitry (power supplies) that have either enabling logic.
A block diagram of the MCP18480 is shown below.
MCP18480 Block Diagram
V
POS
UV
TH
UV
HYS
UV
D
OV
TH
V
NEG
GATE
V
FB
MCP18480
V
REFOUT
V
REFIN
I
SET
SENSE
TIMER
R
DISCH
L
PWRGOOD
(1)
DRAIN
TH
12V
Regulator
12V
OUT
5V
Reg.
5V
OUT
5V
OUT
Latch
(Section
6.8.6)
U
O
Current Limit Timer
ENABLE
RESTART
CL
V
POS
OVO
PWRGOOD
Output Block
(Section 6.8.9)
V
NEG
BIAS
Undervoltage
(Section 6.8.1)
Overvoltage
(Section 6.8.2)
Current Limit
(Section 6.8.4)
GATE
Drive
Timer
FET Good
(Section 6.8.3)
Circuit Breaker
T
C
SENSE
Internal
Bias
Generation
Note 1:
The PWRGOOD output pin can be either active-high or active-low. This polarity is determined by the
voltage (either the level on the V
REFIN
pin or level on the
V
NEG
pin) on the I
SET
pin:
-
Connecting the external
R
ISET
resistor to V
REFIN
configures the PWRGOOD pin as active-low
-
Connecting the external
R
ISET
resistor to
V
NEG
configures the PWRGOOD pin as active-high
(Section 6.8.8)
(Section 6.8.5)
(Section 6.8.7)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP18480-I/SS | 功能描述:熱插拔功率分布 48V Hot Swap RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MCP18480T-I/SS | 功能描述:熱插拔功率分布 48V Hot Swap RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MCP-18H | 制造商:Taiyo Electric Ind. 功能描述: |
| MCP-18-I9-LL | 制造商:YAMAICHI 制造商全稱:Yamaichi Electronics Co., Ltd. 功能描述:MatchCon |
| MCP-18-TI9-LL | 制造商:YAMAICHI 制造商全稱:Yamaichi Electronics Co., Ltd. 功能描述:MatchCon |
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