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參數資料
| 型號： | MAX5937LCESA+ |
| 廠商： | Maxim Integrated |
| 文件頁數： | 8/23頁 |
| 文件大小： | 382K |
| 描述： | IC HOT-SWAP CTRLR -48V 8-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 100 |
| 類型： | 熱交換控制器 |
| 應用： | 通用 |
| 內部開關： | 無 |
| 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： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 管件 |
-48V Hot-Swap Controllers with V
IN
Step Immunity and No R
SENSE
8 _______________________________________________________________________________________
The MAX5936/MAX5937 conduct a load-probe test after
contact transients from the hot plug-in have settled. This
follows the MAX5936/MAX5937 power-up (when the
UVLO condition has 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 and tests for a voltage of 200mV across
the load at V
OUT
. This current is set by an external resis-
tor, R
LP
, between V
OUT
and LP (Figure 14). When the
voltage across the load exceeds 200mV, the test is trun-
cated and the GATE turn-on sequence is started. If at the
end of the 220ms test period the voltage across the load
has not reached 200mV, the load is assumed to be short-
ed and the current to the load from the LP pin is shut off.
The MAX5936A_/MAX5937A_ will timeout for 16 x t
LP
then retry the load-probe test. The MAX5936L_/
MAX5937L_ will latch the fault condition indefinitely until
the UVLO is brought below 1.125V for 1.5ms or the power
is recycled. See the Applications Information section for
recommendations on selecting R
LP
to set the current
level.
Upon successful completion of the load-probe test, the
MAX5936/MAX5937 enter the power-up GATE cycle and
begin ramping the GATE voltage with a 52礎 current
source. This current source is restricted if V
OUT
begins
to ramp down faster than the default 9V/ms slew rate.
Charging up GATE enhances the power MOSFET in a
controlled manner and ramping V
OUT
at a user-settable
rate controls the inrush current from the backplane. The
MAX5936/MAX5937 continue to charge up the GATE
until one of two events occurs: a normal power-up GATE
cycle is completed or a power-up to fault management is
detected (see the GATE Cycles section in Appendix A).
Figure 1. Functional Block Diagram
10V REG
AND
5V REG
UVLO
LOGIC
CONTROL
BANDGAP
REF
V
BG
10礎
FAULT
DETECTION
SEQUENCER
CONTROLLER
TIMER
GATE
CONTROL
LOAD PROBE
TEST
V
SC
, V
CB
, AND
75% OF V
CB
COMPARATORS
STEP
TEMPERATURE-
COMPENSATED
CURRENT SOURCE
V
BG
(1.25V)
+5V
+10V
52礎
2V AND
15V
CLAMP
PGOOD
PGOOD
LOGIC
MAX5936
MAX5937
PGOOD
PGOOD
V
OUT
GATE
LP
R
LOAD
C
LOAD
UVLO
GND
STEP_MON
V
EE
GND
V
EE
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5937LCESA+ | 功能描述:熱插拔功率分布 48V- 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 |
| MAX5937LCESA+T | 功能描述:熱插拔功率分布 48V- 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 |
| MAX5937LCESA-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 |
| MAX5937LNESA | 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 |
| MAX5937LNESA+ | 功能描述:熱插拔功率分布 48V- 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 |
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