參數(shù)資料
型號(hào)： MAX5938LEEE+
廠商： Maxim Integrated
文件頁(yè)數(shù)： 8/26頁(yè)
文件大小： 915K
描述： IC HOT-SWAP CTRLR -48V 16-QSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 100
類型： 熱交換控制器
應(yīng)用： 通用
內(nèi)部開關(guān)： 無(wú)
電源電壓： -10 V ~ -80 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-SSOP（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-QSOP
包裝： 管件
capacitance (gate-to-drain) would pull up and turn on
the MOSFET gate when the MOSFET drain is rapidly
pulled up by the V
IN
step during backplane contact.
The MAX5938 GATE clamp can overcome the gate-to-
drain capacitance of large power MOSFETs with added
slew-rate control (C
SLEW
) capacitors while eliminating
the need for additional gate-to-source capacitance.
The MAX5938 keeps the MOSFET off indefinitely if the
supply voltage is below the user-set ON and OFF
thresholds, if the supply voltage is above the user-set
overvoltage (OV) threshold, or if a short circuit (user-
defined) is detected in the load connected to the drain
of the power MOSFET.
The MAX5938 conducts a load-probe test after contact
transients from the hot plug-in have settled. This follows
the MAX5938 power-up (when the ON, OFF, and OV
conditions have been met for 220ms (t
LP
)) and prior to
the turn-on of the power MOSFET. This test pulls a user-
programmable current through the load (1A, max) for up
to 220ms (t
LP
) and tests for a voltage of 200mV across
the load at V
OUT
(Figure 3). This current is set by an
external resistor, R
LP
(Figure 17) between V
OUT
and LP.
When the voltage across the load exceeds 200mV, the
test is truncated and the GATE turn-on sequence is start-
ed. If at the end of the 200ms (t
LP
) test period the volt-
age across the load has not reached 200mV, the load is
assumed to be shorted and the current to the load from
Figure 1. Functional Diagram
10V REG
AND
5V REG
PGOOD
POLARITY
LOGIC
ON, OFF,
AND OV
LOGIC CONTROL
BANDGAP
REF
V
BG
10礎(chǔ)
FAULT
DETECTION
SEQUENCER
CONTROLLER
TIMER
GATE
CONTROL
LOAD-PROBE
TEST
V
SC
, V
CB
, AND
75% OF V
CB
COMPARATORS
STEP
50礎(chǔ) TEMP
COMPENSATED
CURRENT SOURCE
V
BG
 (1.25V)
+5V
+10V
52礎(chǔ)
2V AND
15V
CLAMP
PGOOD
LOGIC
MAX5938
PGOOD
V
OUT
GATE
LP
R
LOAD
C
LOAD
ON
GND
STEP_MON
V
EE
GND
V
EE
R
INT
2k&
CB_ADJ
PG
OV
PG
OFF
OV
POL_SEL
-48V Hot-Swap Controller with V
IN
Step Immunity,
No R
SENSE
, and Overvoltage Protection
8  _______________________________________________________________________________________
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5938LEEE+ 功能描述:熱插拔功率分布 48V- Hot-Swap Controller 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
MAX5938LEEE+T 功能描述:熱插拔功率分布 48V- Hot-Swap Controller 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
MAX5938LEEE-T 功能描述:熱插拔功率分布 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
MAX5939AESA 功能描述:熱插拔功率分布 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
MAX5939AESA+ 功能描述:熱插拔功率分布 48V- Hot-Swap Controller 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
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