LTC4356 データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LTC4356 Datasheet PDF : 16 Pages
| |||
LTC4365
ELECTRICAL CHARACTERISTICS 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)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN, VOUT
VIN
Input Voltage Range
IVIN
Input Supply Current
Operating Range
Protection Range
l 2.5
l –40
34
V
60
V
SHDN
SHDN
SHDN
=
=
=
0V, VIN
0V, VIN
2.5V
=
=
VOUT,
VOUT,
–40°C
–40°C
to
to
85°C
125°C
l
l
l
10
50
μA
10
100
μA
25
150
μA
IVIN(R)
VIN(UVLO)
IVOUT
Reverse Input Supply Current
Input Supply Undervoltage Lockout
VOUT Input Current
GATE
VIN = –40V, VOUT = 0V
VIN Rising
SHDN
SHDN
=
=
0V, VIN =
2.5V, VIN
VOUT
= VOUT
VIN = –40V, VOUT = 0V
l
–1.2 –1.8
mA
l 1.8
2.2
2.4
V
l
6
30
μA
l
100 250
μA
l
20
50
μA
ΔVGATE
N-Channel Gate Drive
(GATE-VOUT)
VIN = VOUT = 5.0V, IGATE = –1μA
VIN = VOUT = 12V to 34V, IGATE = –1μA
l3
3.6
4.2
V
l 7.4
8.4
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
tGATE(SLOW) N-Channel Gentle Turn Off Delay
CGATE = 2.2nF, UV or OV Fault
l
2
4
μs
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
VOV
VUVHYST
VOVHYST
ILEAK
tFAULT
SHDN
UV Input Threshold Voltage
OV Input Threshold Voltage
UV Input Hysteresis
OV Input Hysteresis
UV, OV Leakage Current
UV, OV Fault Propagation Delay
UV Falling → ΔVGATE = 0V
OV Rising → ΔVGATE = 0V
V = 0.5V, VIN = 34V
Overdrive = 50mV
VIN = VOUT = 12V
l 492.5 500 507.5 mV
l 492.5 500 507.5 mV
l 20
25
32
mV
l 20
25
32
mV
l
±10
nA
l
1
2
μs
VSHDN
ISHDN
tSTART
tSHDN(F)
SHDN Input Threshold
SHDN Input Current
Delay Coming Out of Shutdown Mode
SHDN to FAULT Asserted
SHDN Falling to ΔVGATE = 0V
l 0.4 0.75 1.2
V
SHDN = 0.75V, VIN = 34V
l
±10
nA
SHDN Rising to ΔVGATE > 0V, VIN = VOUT = 12V l 400
800 1200
μs
VIN = VOUT = 12V
l
1.5
3
μs
tLOWPWR
FAULT
Delay from Turn Off to Low Power Operation
VIN = VOUT = 12V
l 26
36
55
ms
VOL
IFAULT
FAULT Output Voltage Low
FAULT Leakage Current
IFAULT = 500μA
FAULT = 5V, VIN = 34V
l
0.15 0.4
V
l
±20
nA
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.
4365f
3
Share Link: 