參數(shù)資料
型號(hào)： MAX5939
廠商： Maxim Integrated Products, Inc.
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： -48V Hot-Swap Controllers with External Rsense and High Gate Pulldown Current
中文描述： -48V熱插拔控制器，外置RSENSE、提供較高的柵極下拉電流
文件頁(yè)數(shù)： 2/18頁(yè)
文件大?。?/td> 313K
代理商： MAX5939
M
-48V Hot-Swap Controllers with External
R
SENSE
and High Gate Pulldown Current
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
All Voltages Are Referenced to VEE, Unless Otherwise Noted
Supply Voltage (VDD- VEE )................................-0.3V to +100V
DRAIN, PWRGD,
PWRGD
....................................-0.3V to +100V
PWRGD to DRAIN .............................................
…
-0.3V to +95V
PWRGD to VDD.......................................................-95V to +85V
SENSE (Internally Clamped) .................................-0.3V to +1.0V
GATE (Internally Clamped) ....................................-0.3V to +18V
UV and OV..............................................................-0.3V to +60V
Current into SENSE...........................................................+40mA
ELECTRICAL CHARACTERISTICS
(V
EE
= 0V, V
DD
= 48V, T
A
= -40
°
C to +85
°
C, unless otherwise noted. Typical values are at T
A
= +25
°
C, unless otherwise noted.) (Notes 1, 4)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Current into GATE...........................................................+300mA
Current into Any Other Pin................................................+20mA
Continuous Power Dissipation (TA= +70
°
C)
8-Pin SO (derate 5.9mW/
°
C above +70
°
C)..................471mW
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature .....................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLIES
Operating Input Voltage Range
V
DD
20
80
V
Supply Current
I
DD
Current into V
DD
with UV = 3V, OV, DRAIN,
SENSE = V
EE
, GATE = floating
0.7
2
mA
GATE DRIVER AND CLAMPING CIRCUITS
Gate Pullup Current
Gate Pulldown Current
External Gate Drive
GATE to V
EE
Clamp Voltage
CIRCUIT BREAKER
Current-Limit Trip Voltage
SENSE Input Current
UNDERVOLTAGE LOCKOUT
I
PU
I
PD
GATE drive on, V
GATE
= V
EE
V
SENSE
- V
EE
= 100mV, V
GATE
= 2V (Note 2)
V
GATE
- V
EE
, steady state, 20V
≤
V
DD
≤
80V
V
GATE
- V
EE
, I
GS
= 30mA
-30
24
10
15
-45
50
13.5
16.4
-60
70
18
18
μA
mA
V
V
V
GATE
V
GSCLMP
V
CL
I
SENSE
V
CL
= V
SENSE
- V
EE
V
SENSE
= 50mV
40
-1
50
-0.2
60
0
mV
μA
Supply Internal Undervoltage
Lockout Voltage High
V
UVLOH
V
DD
increasing
13.8
15.4
17.0
V
Supply Internal Undervoltage
Lockout Voltage Low
V
UVLOL
V
DD
decreasing
11.8
13.4
15.0
V
UV INPUT
UV High Threshold
UV Low Threshold
UV Hysteresis
UV Input Current
OV INPUT
OV High Threshold
OV Low Threshold
OV Voltage Reference Hysteresis
OV Input Current
V
UVH
V
UVL
V
UVHY
I
INUV
UV voltage increasing
UV voltage decreasing
1.240
1.105
1.255
1.125
130
1.270
1.145
V
V
mV
μA
UV = V
EE
-0.5
0
V
OVH
V
OVL
V
OVHY
I
INOV
OV voltage rising
OV voltage decreasing
1.235
1.189
1.255
1.205
50
1.275
1.221
V
V
mV
μA
OV = V
EE
-0.5
0
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