参数资料
型号: A3938SLQTR
厂商: Allegro Microsystems Inc
文件页数: 4/11页
文件大小: 0K
描述: IC CTRLR MOSFET 3PH 36-QSOP
标准包装: 1,500
应用: DC 电机控制器,无刷(BLDC),3 相
输出数: 1
电源电压: 18 V ~ 50 V
工作温度: -20°C ~ 85°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: 带卷 (TR)
A3938
Three-Phase Power MOSFET Controller
ELECTRICAL CHARACTERISTICS 1,2 Unless otherwise noted: T A = 25°C, V BB = 18 V to 50 V, C LCAP = 0.1 μ F, C BOOT = 0.1 μ F,
C VREG = 10 μ F, PWM = 22.5 kHz, square wave, two phases active
Characteristics
Quiescent Current
LCAP Regulator
VREG =VBB Supply Voltage Range
VREG Output Voltage
VREG Load Regulation
VREG Line Regulation
Symbol
I VBB
V LCAP
V REG
V REG
V REGLOAD
V REGLIN
Test Conditions
RESET = 1, Coast mode, stopped
I lcap = –3.0 mA
VREG = VBB, observe maximum rating = 15 V
V BB = 13.2 V to 18 V, I vreg = –10 mA
V BB = 18 V to 50 V, I vreg = –10 mA
I vreg = –1 mA to –30 mA, Coast mode
I vreg = –10 mA, Coast mode
Min.
4.75
10.8
12.4
Typ. 1
5
V BB – 2.5
13
25
40
Max.
8.0
5.25
13.2
13.6
Units
mA
V
V
V
V
mV
mV
Control Logic
Logic Input Voltage
Logic Input Current
V IN(1)
V IN(0)
I IN(1)
I IN(0)
Minimum high level for logical 1
Maximum low level for logical 0
V IN = 2.0 V
V IN = 0.8 V
2.0
–30
–50
0.8
–90
–130
V
V
μ A
μ A
Gate Drive
Low-Side Drive, Output High
V HGL
I gx = 0
V REG – 0.8 V REG – 0.5
V
High-Side Drive, Output High
Pull-Up Switch Resistance
Pull-Down Switch Resistance
Low-Side Switching, 10/90 Rise Time
Low-Side Switching, 10/90 Fall Time
High-Side Switching, 10/90 Rise Time
High-Side Switching, 10/90 Fall Time
Propagation Delay; GHx,GLx Rising
Propagation Delay; GHx,GLx Falling
Dead Time, Maximum
Dead Time, Minimum
V HGH
R DS(ON)
R DS(ON)
tr GL
tf GL
tr GH
tf GH
T pr
T pf
t DEAD
t DEAD
I gx = 0
I gx = –50 mA
I gx = 50 mA
C load = 3300 pF
C load = 3300 pF
C load = 3300 pF
C load = 3300 pF
PWM to gate drive out, C load = 3300 pF
PWM to gate drive out, C load = 3300 pF
V dead = 0, GHx to GLx, C load = 0
I DEAD = 780 μ A, GLx to GHx, C load = 0
10.4
3.5
50
11.6
14
4
120
60
120
60
220
110
5.6
100
12.8
7.6
150
V
Ω
Ω
ns
ns
ns
ns
ns
ns
μ s
ns
Continued on next page...
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4
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