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参数资料
| 型号： | A3985SLDTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DRVR PROG DUAL 38TSSOP |
| 标准包装： | 1 |
| 配置： | 半桥 |
| 输入类型： | 非反相 |
| 延迟时间： | 120ns |
| 配置数： | 2 |
| 输出数： | 8 |
| 电源电压： | 12 V ~ 50 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 38-TSSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1180-6 |
A3985
C2A 1
Digitally Programmable
Dual Full-Bridge MOSFET Driver
38 C2B
Pin-out Diagram
GH2A 2
S2A 3
GL2A 4
NC 5
VREG 6
VBB 7
GL1A 8
S1A 9
GH1A 10
C1A 11
C1B 12
GH1B 13
S1B 14
GL1B 15
LSS1 16
SENSE1 17
NC 18
ENABLE 19
Bridge 2
Control
Serial
Interface
Bridge 1
Control
37 GH2B
36 S2B
35 GL2B
34 NC
33 LSS2
32 SENSE2
31 WC
30 SDO
29 SDI
28 STR
27 SCK
26 NC
25 VDD
24 NC
23 OSC
22 NC
21 REF
20 GND
Terminal List Table
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Name
C2A
GH2A
S2A
GL2A
NC
VREG
VBB
GL1A
S1A
GH1A
C1A
C1B
GH1B
S1B
GL1B
LSS1
SENSE1
NC
ENABLE
GND
REF
NC
OSC
NC
VDD
NC
SCK
STR
SDI
SDO
WC
SENSE2
LSS2
NC
GL2B
S2B
GH2B
C2B
Description
Phase 2 bootstrap capacitor drive A connection
Phase 2 high-side gate drive A
Phase 2 motor connection A
Phase 2 low-side gate drive A
No internal connection
Regulator decoupling capacitor connection
Motor supply voltage
Phase 1 low-side gate drive A
Phase 1 motor connection A
Phase 1 high-side gate drive A
Phase 1 bootstrap capacitor drive A connection
Phase 1 bootstrap capacitor drive B connection
Phase 1 high-side gate drive B
Phase 1 motor connection B
Phase 1 low-side gate drive B
Phase 1 low-side source connection
Phase 1 bridge current sense input
No internal connection
Output enable
Ground
Reference voltage
No internal connection
External clock input, ROSC resistor connection
No internal connection
Logic supply voltage
No internal connection
Serial Data Clock
Serial Data Strobe
Serial Data Input
Serial Data Output
Write Configuration Enable
Phase 2 bridge current sense input
Phase 2 low-side source connection
No internal connection
Phase 2 low-side gate drive B
Phase 2 motor connection B
Phase 2 high-side gate drive B
Phase 2 bootstrap capacitor drive B connection
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
14
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