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參數資料
| 型號： | MAX4271 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 3V to 12V Current-Limiting Hot Swap Controllers with Autoretry, DualSpeed/BiLevel Fault Protection |
| 中文描述： | 3V至12V、限流型、熱插拔控制器，帶有自動重試以及DualSpeed/BiLevel故障保護 |
| 文件頁數： | 9/24頁 |
| 文件大小： | 407K |
| 代理商： | MAX4271 |
M
3V to 12V Current-Limiting Hot Swap Controllers
with Autoretry, DualSpeed/BiLevel Fault Protection
_______________________________________________________________________________________
9
Typical Operating Characteristics (continued)
(
V
IN
= 5V, R
SENSE
= 100m
, C
BOARD
= 47μF, T
A
= +25
°
C, unless otherwise noted.
)
C
BOARD
= 0, R
= 100m
,
C
GATE
= 0, R
S
= 0
I
LOAD
1A/div
V
2V/div
V
2V/div
0
50
μ
s/div
TURN-OFF TIME (C
BOARD
= 0)
MAX4271/3-37
ON
0
Pin Description
C
BOARD
= 0, R
SENSE
= 100m
,
C
TIM
= 10nF, C
GATE
= 0
V
OUT
2V/div
V
2V/div
ON
100
μ
s/div
STARTUP TIME (C
BOARD
= 0)
MAX4271/3-35
PIN
MAX4271
MAX4272
MAX4273
NAME
FUNCTION
—
1
RTH
Current-Sense Threshold Setting Input. Connect a resistor from RTH to V
IN
to set the
fast comparator threshold. Bypass to V
IN
with 0.1
μ
F. Connect RTH to V
IN
to disable
both the fast comparator and current regulation at startup. Short RTH to GND for a
200mV threshold. See
Fast Comparator Threshold
section.
—
2
AUXVCC
Auxiliary Supply Input. Supply input for short-circuit switchover. To use this, connect a
1
μ
F capacitor from AUXVCC to GND; otherwise, leave floating. See
Auxiliary V
CC
section.
1
3
IN
Input Voltage. Connect to +2.7V to +13.2V supply; 15V absolute maximum voltage
rating.
2
3
4
5
SENSE
GATE
Current-Sense Resistor Voltage Input. R
SENSE
is connected from IN to SENSE.
Gate Drive Output. Connect to gate of external N-channel pass transistor.
—
6
CEXT
External Gate Capacitance Connection. Connect a capacitor from CEXT to GATE to
increase the gate charging time. This pin goes high impedance during a fast
comparator fault for fast discharge.
—
7
LLMON
Load Line Monitor. Connect to the source of the external N-channel MOSFET. The
external FET is turned on only when the load voltage is less than 100mV.
4
8
GND
Ground
—
9
CTON
Startup Timer Input. Leave floating or connect the timing capacitor from CTON to GND.
See
Startup and Retry Timers
section.
5
10
CSPD
Slow Comparator Speed Setting. Leave floating or connect the timing capacitor from
CSPD to GND. See
Slow Comparator Response Time
section.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4271ESA | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX4271ESA+ | 功能描述:熱插拔功率分布 3-12V Current-Limit Hot Swap Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX4271ESA+T | 功能描述:熱插拔功率分布 3-12V Current-Limit Hot Swap Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX4271ESA-G05 | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX4271ESA-T | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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