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参数资料
| 型号： | A4989SLDTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/17页 |
| 文件大小： | 0K |
| 描述： | IC FULL BRDG MFET DRVR 38TSSOP |
| 标准包装： | 1 |
| 应用： | 步进电机控制器，2 相 |
| 输出数： | 1 |
| 电压 - 负载： | 12 V ~ 50 V |
| 电源电压： | 3 V ~ 5.5 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 |
| 其它名称： | 620-1389-6 |
A4989
Description (continued)
Dual Full-Bridge MOSFET Driver
with Microstepping Translator
The above-supply voltage required for the high-side N-channel
MOSFETs is provided by a bootstrap capacitor. Efficiency is
enhanced by using synchronous rectification and the power FETs
are protected from shoot-through by integrated crossover control
and programmable dead time.
Selection Guide
In addition to crossover current control, internal circuit protection
provides thermal shutdown with hysteresis and undervoltage lockout.
Special power-up sequencing is not required.
This component is supplied in an 38-pin TSSOP (package LD). The
package is lead (Pb) free, with 100% matte tin leadframe plating.
Part Number
A4989SLDTR-T
Packing
Tape and reel, 4000 pieces per reel
Absolute Maximum Ratings
Characteristic
Supply Voltage
Logic Supply Voltage
Logic Inputs and Outputs
SENSE x pins
S xx pins
LSS x pins
GH xx pins
GL xx pins
C xx pins
Operating Ambient Temperature
Junction Temperature
Storage Temperature
Symbol
V BB
V DD
T A
T J (max)
T stg
Range S
Notes
Rating
–0.3 to 50
–0.3 to 7
–0.3 to 7
–1 to 1
–2 to 55
–2 to 5
S xx to S xx +15
–2 to 16
–0.3 to S xx +15
–20 to 85
150
–55 to 150
Units
V
V
V
V
V
V
V
V
V
oC
oC
oC
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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