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参数资料
| 型号： | LC5521D |
| 元件分类： | 稳压器 |
| 英文描述： | 2.5 A POWER FACTOR CONTROLLER, 18 kHz SWITCHING FREQ-MAX, DIP7 |
| 封装： | DIP-8/7 |
| 文件页数： | 3/40页 |
| 文件大小： | 888K |
| 代理商： | LC5521D |
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11
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
28106.02
LC5521D Absolute Maximum Ratings TA = 25°C, unless otherwise specified
Characteristic
Symbol
Notes
Pins
Rating
Unit
Drain Current1
IDPeak
Single pulse
8 – 1
2.5
A
Single Pulse Avalanche Energy1
EAS
ILPeak = 2.0 A, VDD = 99 V, L = 20 mH
8 – 1
47
mJ
Supply Voltage for Controller Chip
VCC
2 – 1
35
V
OCP Pin Voltage
VOCP
3 – 1
2.0 to 5.0
V
FB Pin Voltage
VFB
4 – 1
0.3 to 7.0
V
OVP Pin Voltage
VOVP
6 – 1
0.3 to 5.0
V
Allowable Power Dissipation of
MOSFET2
PD1
8 – 1
0.97
W
Operating Ambient Temperature
TOP
―55 to 125
°C
Storage Temperature
Tstg
―55 to 125
°C
Channel (Junction) Temperature
Tch
―
150
°C
1
Varies by product; refer to individual datasheets.
2
Mounted on a 15 mm × 15 mm PCB.
LC5521D ELECTRICAL CHARACTERISTICS (MOSFET) TA = 25°C, unless otherwise specified
Characteristics
Symbol
Test Conditions
Pins
Min.
Typ.
Max.
Unit
Drain-to-Source Breakdown Voltage1
VDSS
8 – 1
650
――
V
Drain Leakage Current
IDSS
8 – 1
――
300
μA
On Resistance1
RDS(on)
8 – 1
――
3.95
Ω
Switching Time1
tf
8 – 1
――
250
ns
Thermal Resistance1,2
Rθch-c
Between channel and case
―――
42
°C/W
1
Varies by product; refer to individual datasheets.
2
TC measured at the center of the case top surface.
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