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| 型号： | A4401KLTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/17页 |
| 文件大小： | 0K |
| 描述： | IC QUASI FLYBACK CONVERTER 8SOIC |
| 标准包装： | 1 |
| 显示器类型： | 真空荧光 (VF) |
| 电流 - 电源： | 2.3mA |
| 电源电压： | 7 V ~ 40 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1217-6 |
A4401
Automotive Quasi-Resonant Flyback Control IC
ELECTRICAL CHARACTERISTICS 1,2 valid at T J = –40°C to +150°C, V IN = 7 to 40 V (unless noted otherwise)
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Units
General
VIN Quiescent Current
LX Leakage Current
LX Input Bias Current
Minimum Frequency
Soft Start
I INOFF
I INON
I LXLEAK
I LX
f SW
t SS
EN = Low
EN = High, no MOSFET switching
EN = Low, V LX = 40 V
EN = High, V LX = 60 V
–
–
–
–
25
5
–
2.3
–
–
35
10
10
3.3
1
145
45
15
μ A
mA
μ A
μ A
kHz
ms
Gate Drive
Drive High Voltage, V IN > 10 V
Drive High Voltage, 10 V > V IN > 7 V
V GDH
–
–
8.4
V IN – 0.5
9.5
V IN – 0.25
V
V
Rise Time, V IN > 10 V
Rise Time, 10 V > V IN > 7 V
Fall Time, V IN > 10 V
Fall Time, 10 V > V IN > 7 V
t r
t f
C LOAD = 1 nF, 10% to 90% of V GS = 9 V
C LOAD = 1 nF, 10% to 90% of V GS , V IN = 7 V
C LOAD = 1 nF, 90% to 10% of V GS = 0 V
C LOAD = 1 nF, 90% to 10% of V GS , V IN = 7 V
–
–
–
–
60
90
30
40
–
–
–
–
ns
ns
ns
ns
Current Sense Input
Maximum Sense Voltage (Current Limit)
V CL
600
800
1000
mV
Sense Input Bias Current
Current Sense Blanking
I ISS
t BLANK
V ISS = –300 mV to 1 V
–
100
–
145
10
190
μ A
ns
Reference Supply
Reference Voltage Tolerance
V REF
1.180
1.205
1.230
V
Operational Transconductance Amplifier
Output Impedance
Gm Constant 3
Z OP
K Gm
10
–
–
470
–
–
M Ω
μ S
Output Source Current
Output Sink Current
Input Bias Current
I SRC
I SIN
I BIAS
V COMP = 1.4 V, V A = 1.06 V, T A = 25oC
V COMP = 1.4 V, V A = 1.36 V, T A = 25oC
–30
20
–
–25
25
–100
–20
30
–
μ A
μ A
nA
Enable Input
EN Input Low Voltage
EN Input High Voltage
EN Input Hysteresis
V IL
V IH
V Ihys
–
2.4
200
–
–
500
0.8
–
–
V
V
mV
I INL
V IN = 0 V
–10
–
10
μ A
EN Input Current
I INH
V IN = 14 V
V IN = 40 V
–
–
–
–
50
200
μ A
μ A
Protection
VIN Turn-On Threshold
VIN Turn-Off Threshold
Undervoltage Hysteresis
Overtemperature Shutdown
Overtemperature Hysteresis
V UVON
V UVOFF
V UVhys
T JSD
T JSDhys
Voltage rising
Voltage falling
Temperature increasing
5.4
4.9
–
–
–
–
–
0.5
165
15
7
6.5
–
–
–
V
V
V
oC
oC
1 For
input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
2 Specifications over operating temperature range are assured by design and characterization.
3 Guaranteed by design.
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
4
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