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参数资料
| 型号： | A3906SESTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/10页 |
| 文件大小： | 0K |
| 描述： | IC DVR DC/STEP MOTOR DUAL 20-QFN |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，步进电机驱动器 |
| 输出数： | 2/1 |
| 电流 - 输出： | ± 1A |
| 电源电压： | 2.5 V ~ 9 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（4x4） |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1288-6 |
A3906
Selection Guide
Low Voltage Stepper and Single/Dual DC Motor Driver
Part Number
A3906SESTR-T
Packing
1500 pieces per 7-in. reel
Package
20-pin QFN with exposed thermal pad
Absolute Maximum Ratings
Characteristic
Load Supply Voltage
Logic Input Voltage Range
Sense Voltage
Symbol
V BB
V IN
V SENSEx
Continuous
Pulsed, t w < 1 μ s
Notes
Rating
9.6
–0.3 to 7
0.5
1
Units
V
V
V
V
Output Current
Output Current in Paralleled
Operation
Operating Temperature Range
Junction Temperature
Storage Temperature Range
I OUT
I OUT(par)
T A
T J(max)
T stg
May be limited by duty cycle, ambient
temperature, and heat sinking. Under
any set of conditions, do not exceed
the specified current rating or a junction
temperature of 150°C.
Range S
Continuous
Peak, DC < 30%
Continuous
Peak, DC < 30%
1
1.5
2
2.5
–20 to 85
150
–40 to 150
A
A
A
A
°C
°C
°C
Thermal Characteristics may require derating at maximum conditions, see application information
Characteristic
Symbol
Test Conditions*
Value Units
Package Thermal Resistance
R θ JA
4-layer PCB based on JEDEC standard
37
oC/W
*Additional thermal information available on the Allegro website.
Terminal List Table
Number
1
Name
CP2
Function
Charge pump capacitor terminal 2
Pin-out Diagram
2
3
4
5
6
7
GND
SLEEP
IN1
IN2
IN3
IN4
Ground
Sleep logic input, active low
Control input
Control input
Control input
Control input
CP2
GND
1
2
15
14
SENSE1
OUT1B
8
9
FL1
FL2
Current limit flag, bridge 1
Current limit flag bridge 2
SLEEP
IN1
IN2
3
4
5
PAD
13
12
11
VBB
OUT2B
SENSE2
10
11
12
OUT2A
SENSE2
OUT2B
DMOS full-bridge 2, output A
Current sense resistor terminal, bridge 2
DMOS full-bridge 2, output B
13
14
15
16
17
18
19
20
–
VBB
OUT1B
SENSE1
OUT1A
VCP
CP3
CP1
CP4
PAD
Supply Voltage
DMOS full-bridge 1, output B
Current sense resistor terminal, bridge 1
DMOS full-bridge 1, output A
Reservoir capacitor terminal
Charge pump capacitor terminal 3
Charge pump capacitor terminal 1
Charge pump capacitor terminal 4
Exposed pad for enhanced thermal performance
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2
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