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参数资料
型号： LTC4365ITS8#TRPBF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 电源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封装： LEAD FREE, PLASTIC, MO-193, TSOT-23, 8 PIN
文件页数： 10/16页
文件大小： 369K
代理商： LTC4365ITS8#TRPBF
LTC4365
3
4365f
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN, VOUT
VIN
Input Voltage Range
Operating Range
Protection Range
l
2.5
–40
34
60
V
IVIN
Input Supply Current
SHDN = 0V, VIN = VOUT, –40°C to 85°C
SHDN = 0V, VIN = VOUT, –40°C to 125°C
SHDN = 2.5V
l
10
25
50
100
150
μA
IVIN(R)
Reverse Input Supply Current
VIN = –40V, VOUT = 0V
l
–1.2
–1.8
mA
VIN(UVLO)
Input Supply Undervoltage Lockout
VIN Rising
l
1.8
2.2
2.4
V
IVOUT
VOUT Input Current
SHDN = 0V, VIN = VOUT
SHDN = 2.5V, VIN = VOUT
VIN = –40V, VOUT = 0V
l
6
100
20
30
250
50
μA
GATE
ΔVGATE
N-Channel Gate Drive
(GATE-VOUT)
VIN = VOUT = 5.0V, IGATE = –1μA
VIN = VOUT = 12V to 34V, IGATE = –1μA
l
3
7.4
3.6
8.4
4.2
9.8
V
IGATE(UP)
N-Channel Gate Pull Up Current
GATE = VIN = VOUT = 12V
l
–12
–20
–30
μA
IGATE(FAST) N-Channel Gate Fast Pull Down Current
Fast Shutdown, GATE = 20V, VIN = VOUT = 12V
l
31
50
72
mA
IGATE(SLOW) N-Channel Gate Gentle Pull Down Current
Gentle Shutdown, GATE = 20V, VIN = VOUT = 12V
l
50
90
150
μA
tGATE(FAST) N-Channel Gate Fast Turn Off Delay
CGATE = 2.2nF, UV or OV Fault
l
24
μs
tGATE(SLOW) N-Channel Gentle Turn Off Delay
CGATE = 2.2nF, SHDN Falling, VIN = VOUT = 12V l
150
250
350
μs
tRECOVERY
GATE Recovery Delay Time
VIN = 12V, Power Good to VGATE > 0V
l
26
36
49
ms
UV, OV
VUV
UV Input Threshold Voltage
UV Falling
→ ΔVGATE = 0V
l
492.5
500
507.5
mV
VOV
OV Input Threshold Voltage
OV Rising
→ ΔVGATE = 0V
l
492.5
500
507.5
mV
VUVHYST
UV Input Hysteresis
l
20
25
32
mV
VOVHYST
OV Input Hysteresis
l
20
25
32
mV
ILEAK
UV, OV Leakage Current
V = 0.5V, VIN = 34V
l
±10
nA
tFAULT
UV, OV Fault Propagation Delay
Overdrive = 50mV
VIN = VOUT = 12V
l
12
μs
SHDN
VSHDN
SHDN Input Threshold
SHDN Falling to ΔVGATE = 0V
l
0.4
0.75
1.2
V
ISHDN
SHDN Input Current
SHDN = 0.75V, VIN = 34V
l
±10
nA
tSTART
Delay Coming Out of Shutdown Mode
SHDN Rising to ΔVGATE > 0V, VIN = VOUT = 12V l
400
800
1200
μs
tSHDN(F)
SHDN to FAULT Asserted
VIN = VOUT = 12V
l
1.5
3
μs
tLOWPWR
Delay from Turn Off to Low Power Operation
VIN = VOUT = 12V
l
26
36
55
ms
FAULT
VOL
FAULT Output Voltage Low
IFAULT = 500μA
l
0.15
0.4
V
IFAULT
FAULT Leakage Current
FAULT = 5V, VIN = 34V
l
±20
nA
The
l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 2.5V to 34V, unless otherwise noted. (Note 2)
Note 1. Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2. All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3. These pins can be tied to voltages below –0.3V through a resistor
that limits the current below 1mA.
Note 4. The GATE pin is referenced to VOUT and does not exceed 44V for
the entire operating range.
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