LTC1473LCGN 데이터 시트보기 (PDF) - Linear Technology
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LTC1473LCGN Datasheet PDF : 16 Pages
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LTC1473L
ABSOLUTE AXI U RATI GS
(Note 1)
SENSE +, SENSE –, V + .................................. – 0.3 to 10V
GA1, GB1, GA2, GB2 ................................... – 0.3 to 20V
SAB1, SAB2 ................................................. – 0.3 to 10V
SW, VGG ...................................................... – 0.3 to 20V
IN1, IN2, DIODE ...........................................– 0.3V to 7V
Junction Temperature (Note 2) ............................. 125°C
Operating Temperature Range ..................... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
IN1 1
TOP VIEW
16 GA1
ORDER PART
NUMBER
IN2 2
15 SAB1
DIODE 3
TIMER 4
V+ 5
14 GB1
13 SENSE+
12 SENSE–
LTC1473LCGN
VGG 6
SW 7
11 GA2
10 SAB2
GN PART MARKING
GND 8
9 GB2
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
TJMAX = 125°C, θJA = 150°C/ W
1473L
Consult factory for Military and Industrial grade parts.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Test circuit, V+ = 5V, unless otherwise specified.
SYMBOL
V+
IS
VGS
V +UVLO
V +UVLOHYS
VHIDIGIN
VLODIGIN
IIN
VGS(ON)
VGS(OFF)
IBSENSE +
IBSENSE –
VSENSE
IPDSAB
ITIMER
VTIMER
t ON
t OFF
t D1
t D2
fOVGG
PARAMETER
CONDITIONS
Supply Operating Range
Supply Current
VGS Gate Supply Voltage
V+ Undervoltage Lockout Threshold
V+ Undervoltage Lockout Hysteresis
VIN1 = VDIODE = 5V, VIN2 = 0V, VSENSE+ = VSENSE– = 5V
VGS = VGG – V+, 2.8V ≤ V+ ≤ 10V (Note 3)
V + Ramping Down
Digital Input Logic High
(Note 4)
Digital Input Logic Low
(Note 4)
Input Current
Gate-to-Source ON Voltage
Gate-to-Source OFF Voltage
SENSE + Input Bias Current
SENSE – Input Bias Current
Inrush Current Limit Sense Voltage
SAB1, SAB2 Pull-Down Current
Timer Source Current
Timer Latch Threshold Voltage
Gate Drive Rise Time
Gate Drive Fall Time
Gate Drive Turn-On Delay
Gate Drive Turn-Off Delay
VGS Regulator Operating Frequency
VIN1 = VIN2 = VDIODE = 5V
IGA1 = IGA2 = IGB1 = IGB2 = – 1µA, VSAB1 = VSAB2 = 5V
IGA1 = IGA2 = IGB1 = IGB2 = 100µA, VSAB1 = VSAB2 = 5V
VSENSE + = VSENSE – = 10V (Note 3)
VSENSE + = VSENSE – = 0V (Note 5)
VSENSE + = VSENSE – = 10V (Note 3)
VSENSE + = VSENSE – = 0V (Note 5)
VSENSE – = 10V (VSENSE+ – VSENSE –) (Note 3)
VSENSE – = 0V (VSENSE+ – VSENSE –)
VIN1 = VIN2 = VDIODE = 0.4V, V + = 10V (Note 3)
VIN1 = VIN2 = 0.4V, VDIODE = 2V
VIN1 = 0.4V, VIN2 = VDIODE = 2V, VTIMER = 0V,
VSENSE + – VSENSE – = 300mV
VIN1 = 0.4V, VIN2 = VDIODE = 2V
CGS = 1000pF, VSAB1 = VSAB2 = 0V (Note 6)
CGS = 1000pF, VSAB1 = VSAB2 = 5V (Note 6)
CGS = 1000pF, VSAB1 = VSAB2 = 0V (Note 6)
CGS = 1000pF, VSAB1 = VSAB2 = 5V (Note 6)
MIN
2.8
q
q 7.5
q 2.3
q2
q
q 4.5
q
q2
q – 300
q2
q – 300
0.15
0.10
5
30
q3
q 1.05
TYP
100
8.5
2.5
70
0.9
0.6
5.6
0
4.5
– 175
4.5
– 175
0.20
0.20
20
140
6
1.16
33
2
22
1
30
MAX UNITS
9
V
200
µA
9.5
V
2.8
V
mV
V
0.4
V
±1
µA
7.0
V
0.4
V
10
µA
– 75
µA
10
µA
– 75
µA
0.25
V
0.30
V
35
µA
300
µA
9
µA
1.25
V
µs
µs
µs
µs
kHz
2
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