A3906 데이터 시트보기 (PDF) - Allegro MicroSystems
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A3906 Datasheet PDF : 10 Pages
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A3906
Low Voltage Stepper and Single/Dual DC Motor Driver
Selection Guide
Part Number
A3906SES-T
A3906SESTR-T
Packing
92 pieces per tube
1500 pieces per 7-in. reel
Package
20-pin QFN with exposed thermal pad
Absolute Maximum Ratings
Characteristic
Symbol
Load Supply Voltage
VBB
Logic Input Voltage Range
VIN
Sense Voltage
VSENSEx
Output Current
Output Current in Paralleled
Operation
Operating Temperature Range
Junction Temperature
Storage Temperature Range
IOUT
IOUT(par)
TA
TJ(max)
Tstg
Notes
Continuous
Pulsed, tw < 1 μs
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%
Rating
9.6
–0.3 to 7
0.5
1
1
1.5
2
2.5
–20 to 85
150
–40 to 150
Units
V
V
V
V
A
A
A
A
°C
°C
°C
Thermal Characteristics may require derating at maximum conditions, see application information
Characteristic
Symbol
Test Conditions*
Package Thermal Resistance
RθJA
4-layer PCB based on JEDEC standard
*Additional thermal information available on the Allegro website.
Value Units
37 ºC/W
Pin-out Diagram
CP2 1
GND 2
SLEEP 3
IN1 4
IN2 5
PAD
15 SENSE1
14 OUT1B
13 VBB
12 OUT2B
11 SENSE2
Terminal List Table
Number
1
2
3
4
5
Name
CP2
GND
SLEEP
IN1
IN2
6
IN3
7
IN4
8
FL1
9
FL2
10
OUT2A
11
SENSE2
12
OUT2B
13
VBB
14
OUT1B
15
SENSE1
16
OUT1A
17
VCP
18
CP3
19
CP1
20
CP4
–
PAD
Function
Charge pump capacitor terminal 2
Ground
Sleep logic input, active low
Control input
Control input
Control input
Control input
Current limit flag, bridge 1
Current limit flag bridge 2
DMOS full-bridge 2, output A
Current sense resistor terminal, bridge 2
DMOS full-bridge 2, output B
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, Inc.
2
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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