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| 型号： | A3935KLQTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | IC CTLR MOSFET 3PH AUTO 36-SOIC |
| 产品变化通告： | A3935KLQTR-T Obsolescence 24/Oct/2011 |
| 标准包装： | 1 |
| 应用： | DC 电机驱动器，无刷（BLDC），3 相 |
| 输出数： | 1 |
| 电压 - 负载： | 7 V ~ 40 V |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 135°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-QSOP |
| 供应商设备封装： | 36-QSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1292-6 |
A3935
3-Phase Power MOSFET Controller for Automotive Applications
ELECTRICAL CHARACTERISTICS at T J = –40°C to 150°C, V BAT = 7 to 16 V, V DD = 4.75 to 5.25 V, ENABLE = 22.5 kHz,
50% duty cycle, two phases active;unless otherwise noted
Characteristics
Symbol
Conditions
Min.
Typ 1 .
Max.
Units
Power Supply
V DD Supply Current
V BAT Supply Current
Battery Voltage Operating Range
Bootstrap Diode Forward Voltage
Bootstrap Diode Resistance
Bootstrap Diode Current Limit 2
Bootstrap Quiescent Current
Bootstrap Refresh Time
VREG Output Voltage 3
VREG Dropout Voltage 4
Gate Drive Average Supply Current
VREG Input Bias Current
I DD
I BAT
V BAT
V DBOOT
r DBOOT
I DM
I Cx
t refresh
V REG
V REGDO
I REG
I REGbias
All logic inputs = 0 V
All logic inputs = 0 V
I DBOOT = –I Cx = 10 mA, V DBOOT = V REG – V C x
I DBOOT = –I Cx = 100 mA
r DBOOT (100 mA) = (V DBOOT (150 mA)
– V DBOOT (50 mA)) / 100 mA
3 V < V REG – V C x < 12 V
V Cx = 40 V, GHx = ON
V Sx = low, to guarantee Δ V = +0.5 V refresh of 0.47 μ F
Bootstrap Capacitor, CBOOT, to V Cx – V Sx = +10 V
V BAT = 7 to 40 V, V BOOST from Boost Regulator
V REGDO = V BOOST – V REG , I REG = 40 mA
No external dc load at VREG, C REG = 10 μ F
Current into V BOOST , ENABLE = 0
–
–
7.0
0.8
1.5
2.5
–150
10
–
12.7
–
–
–
–
–
–
–
–
–
–
–
–
–
0.9
–
–
7.0
3.0
40
2.0
2.3
7.5
–1150
30
2.0
14
–
40
4.0
mA
mA
V
V
V
Ω
mA
μ A
μ s
V
V
mA
mA
Boost Supply
VBOOST Output Voltage Limit
VBOOST Output Voltage Limit Hysteresis
V BOOSTM V BAT = 7 V
? V BOOSTM
14.9
35
–
–
16.3
180
V
mV
Boost Switch On Resistance
Boost Switch Maximum Current
Boost Current Limit Threshold Voltage
Off Time
Blanking Time
r DS(on)
I BOOSTSW
V BI(th)
t off
t blank
I BOOSTD < 300 mA
Increasing V BOOSTS
–
–
0.45
3.0
100
1.4
–
–
–
–
3.3
300
0.55
8.0
220
Ω
mA
V
μ s
ns
Control Logic
Logic Input Voltage
Logic Input Current
Logic Input Hysteresis
Logic Output High Voltage
V I(1)
V I(0)
I I(1)
I I(0)
V Ihys
V O(H)
Minimum high level input for logic 1
Maximum low level input for logic 0
V I = V DD
V I = 0.8 V
I O(H) = –800 μ A
2.0
–
–
50
100
V DD –
0.8
–
–
–
–
–
–
–
0.8
500
–
300
–
V
V
μ A
μ A
mV
V
Logic Output Low Voltage V O(L)
I O(L) = 1.6 mA
–
–
0.4
V
Gate Drives, GH x (internal source, or upper, switch stages) 5
Output High Voltage
Source Current (pulsed)
Source On Resistance
V DSL(H)
I xU
r SDU(on)
GHx: I xU = –10 mA, V Sx = 0
GLx: I xU = –10 mA, V LSS = 0
V SDU = 10 V, T J = 25°C
V SDU = 10 V, T J = 135°C
I xU = –150 mA, T J = 25°C
I xU = –150 mA, T J = 135°C
V REG –
2.26
V REG –
0.26
–
400
4.0
7.0
–
–
800
–
–
–
V REG
V REG
–
–
10
15
V
V
mA
mA
Ω
Ω
Continued on the next page…
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
4
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