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參數(shù)資料
| 型號(hào)： | LTC3496EUFD#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 2300 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28 |
| 文件頁(yè)數(shù)： | 9/16頁(yè) |
| 文件大?。?/td> | 296K |
| 代理商： | LTC3496EUFD#TRPBF |
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LT3496
2
3496f
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
VIN (Note 4)...............................................................40V
SW1-SW3, LED1-LED3, CAP1-CAP3 ........................45V
TG1-TG3 ............................................ CAP – 10V to CAP
PWM1-PWM3...........................................................20V
VREF, CTRL1-CTRL3, FADJ, VC1-VC3, OVP1-OVP3..2.5V
SHDN ........................................................................40V
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Max Junction Temperature.................................... 125°C
Storage Temperature Range................... –65°C to 150°C
(Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN Operation Voltage
(Note 4)
3
30
V
VIN Undervoltage Lockout
2.1
2.4
V
Full-Scale LED Current Sense Voltage
CAP1-3 = 24V
●
98
97
100
103
104
mV
One-Tenth Scale LED Current Sense Voltage
CTRL1-3 = 100mV, CAP1-3 = 24V
●
7.5
10
12.5
mV
CAPn/LEDn Operating Voltage
2.5
45
V
VREF Output Voltage
IREF = 200A
●
1.96
2
2.04
V
VREF Line Regulation
3V ≤ VIN ≤ 40V
0.03
%/V
Quiescent Current in Shutdown
SHDN = 0V
0.1
10
A
Quiescent Current Idle
PWM1-PWM3 = 0V
6
7.5
mA
Quiescent Current Active (Not Switching)
VC1-VC3 = 0V
11
14
mA
The
● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 5V, VSHDN = 5V, CAP1-3 = 5V, PWM1-3 = 5V, FADJ = 0.5V,
CTRL1-3 = 1.5V, OVP1-3 = 0V, unless otherwise noted.
PIN CONFIGURATION
9
10
TOP VIEW
29
UFD PACKAGE
28-LEAD (4mm
× 5mm) PLASTIC QFN
11 12 13
28 27 26 25 24
14
23
6
5
4
3
2
1
PWM1
VREF
CTRL3
CTRL2
CTRL1
FADJ
VC3
VC2
CAP3
SW3
SW2
CAP2
LED2
TG2
SW1
CAP1
PWM2
PWM3
SHDN
V
IN
TG3
LED3
VC1
OVP3
OVP2
OVP1
TG1
LED1
7
17
18
19
20
21
22
16
8
15
TJMAX = 125°C, θJA = 43°C/W, θJC = 2.7°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3496EUFD#PBF
LTC3496IUFD#PBF
LTC3496EUFD#TRPBF
LTC3496IUFD#TRPBF
3496
28-Lead (4mm
× 5mm) Plastic QFN
28-Lead (4mm
× 5mm) Plastic QFN
0°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based nish parts.
*For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
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