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| 型号： | A3935KLQTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 10/13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
Input Logic Table
ENABLE
0
1
1
1
1
Input
x LO
Don’t Care
0
0
1
1
x HI
Don’t Care
0
1
0
1
GL x
0
0
0
1
0
Output
GH x
0
0
1
0
0
Mode of Operation
All gate drive outputs low
Both gate drive outputs low
High-side on
Low-side on
XOR circuitry prevents shoot-through
Fault Response Table
Operating Conditions
Fault Output
Regulator State
Driver Output
Fault Mode
ENABLE
ˉFˉ ˉAˉ ˉUˉ ˉLˉ ˉTˉ OVFLT
UVFLT
Boost
V REG
GH x
GL x
No Fault
Short-to-Battery
Short-to-Ground
Bridge (VDRAIN) Fault
VREG Undervoltage
VBAT Overvoltage
Don’t Care
1 b
1 c
1 d
Don’t Care
Don’t Care
1
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
ON
ON
ON
ON
ON
OFF e
ON
ON
ON
ON
ON
ON
a
a
a
a
a
a
a
a
a
a
a
a
VBAT
Undervoltage f
Don’t Care
0
0
1
OFF
OFF
0
0
VDD Undervoltage f
Thermal Shut Down f
Don’t Care
Don’t Care
0
0
High Z
High Z
High Z
High Z
OFF
OFF
OFF
OFF
0
0
0
0
a Determined
by input states: x LO, x HI, and ENABLE. See Input Logic table.
b Short-to-battery can only be detected when the corresponding GLx = 1. This fault is not detected when ENABLE = 0.
c Short-to-ground can only be detected when the corresponding GHx = 1. This fault is not detected when ENABLE = 0.
d Bridge fault appears as a short-to-ground fault on all motor phases. This fault is not detected when ENABLE = 0.
e Off only because V BOOST ≈ V BAT , which is above the voltage threshold of the Boost regulator voltage control loop.
f These faults are not only reported, but also action is taken by the internal logic to protect the A3935 and the system.
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
10
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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