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AS8444

产品描述Programmable PWM DC Motor Driver / Controller
产品类别其他集成电路(IC)    信号电路   
文件大小39KB,共1页
制造商AMS
官网地址https://ams.com/zh
标准
下载文档 详细参数 选型对比 全文预览

AS8444概述

Programmable PWM DC Motor Driver / Controller

AS8444规格参数

参数名称属性值
是否无铅不含铅
是否Rohs认证符合
厂商名称AMS
零件包装代码SOIC
包装说明SOP,
针数28
Reach Compliance Codeunknow
ECCN代码EAR99
模拟集成电路 - 其他类型BRUSH DC MOTOR CONTROLLER
JESD-30 代码R-PDSO-G28
JESD-609代码e3
长度17.93 mm
湿度敏感等级3
功能数量1
端子数量28
最高工作温度125 °C
最低工作温度-40 °C
封装主体材料PLASTIC/EPOXY
封装代码SOP
封装形状RECTANGULAR
封装形式SMALL OUTLINE
峰值回流温度(摄氏度)260
认证状态Not Qualified
座面最大高度2.64 mm
最大供电电压 (Vsup)5.5 V
最小供电电压 (Vsup)4.5 V
标称供电电压 (Vsup)5 V
表面贴装YES
温度等级AUTOMOTIVE
端子面层MATTE TIN
端子形式GULL WING
端子节距1.27 mm
端子位置DUAL
处于峰值回流温度下的最长时间40
宽度7.52 mm

文档预览

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AS 8444 / AS 8446
Programmable PWM DC Motor Driver / Controller
FEATURES
Key Features
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Programmable PWM DC Motor Driver / Controller with
µP Interface (Three Wire Interface)
Programmable Functions and Parameters for Motor
Current, Voltage and Speed Regulation
Single Voltage Supply in the range
Vbat = 6.0 V to 30 V (Vbat,max = 40 V)
Total Power Efficiency up to 96 %
Low RF Emission within the whole frequency range due
to an integrated special EMC compliant driver
No EMC Filters required
Driver fulfils EMC Level 5 (CISPR 25)
Dynamically self-adjusting slew rate regulated switching
technology
Fully protected by programmable failure handling
procedures via µP
Fast Over Current and Over / Under Voltage Detection
and Protection, Battery Voltage Monitoring
External and On Chip Temperature Detection and
Protection
Motor Current and Speed Measurement with a shunt
resistor and capability of trimming the chip for an
external shunt value
LIN Bus Interface
Programmable Parameters:
EMC compliant Driver Functions
Over Current, Over / Under Voltage
Threshold Values
Motor Failure Threshold Levels
Motor Current Measurement Range
Trimming for the current measurement shunt
PWM Frequency, Charge Pump Monitor
Charge Pump to control high side drivers
Integrated 5 V Power Supply for external components
(µP, etc.)
Standby and Wake-up capability
Sleep / Wake-up Mode system controlled by the
µP
and
the LIN Bus
SOIC 28 Package
Bus
It is an advanced PWM DC motor controller subsystem with
an excellent EMC behavior targeted especially for high
current automotive applications. The optimization of the
EMC behavior of the entire module without external
components makes it easier to implement in harsh
environments.
The programmability of parameters and functions allows the
adaptation of the AS8444 to a wide range of applications.
So the system can act either as a motor current or motor
speed or motor voltage regulator. Also a full diagnosis of
motor failures and power FET failures, over temperature
and over/under voltage can be formed by programmable
failure handling procedures using the motor characteristic
and the real time measured motor current, motor speed and
battery voltage.
To simplify the application of this motor regulator in
complex systems (e.g. automotive environment) the circuit
is endowed with a LIN bus interface.
There are two versions of this chip AS8444 and AS8446.
The only difference between the AS8444 and the AS8446 is
the start up behavior after system wake up or battery
connection.
Applications
-
-
-
-
-
Fan cooler
Air conditioning
Fuel pumps
Water and oil pumps
General purpose DC Motor Regulators
Typical Application Diagram
Control part
Power part
Cbat
1
2
3
-
-
-
-
-
Vbat
CMN
CMP
VSS
28
GND_P
27
OUT
Tr1
CP12
CP0
Rmeas
AS8444
VMO
Vbat
TP
FAIL
CS
ADC
LIN
n.c.
26
(optional)
4
5
Vpump
25
CP2
24
CP1
23
VDDctrl
22
VDD
21
Iref
20
RESET
19
WD
18
Rx2
17
PWM
16
CLK
15
PWMout
INR
CS
ANA
CLK
GND
Port1
Port2
6
7
8
9
10
µP
(optional)
Q1
OSC2
OSC1
VDD
VDD = 5 V
Rref
R
T1
R
NTC
CVDD
D1
M+
General Description
The AS8444 is a complete and fully protected PWM DC
motor driver/controller, which could be implemented by
interfacing a low cost 8-bit
µP
and a high-side N-channel
power FET switch.
11
Tx
12
Rx1
13
DATAin
14
DATAout
M
M-
VSS
RESET
Tout
SPIout
SPIin
GND_P

AS8444相似产品对比

AS8444 AS8446
描述 Programmable PWM DC Motor Driver / Controller Programmable PWM DC Motor Driver / Controller
是否无铅 不含铅 不含铅
是否Rohs认证 符合 符合
厂商名称 AMS AMS
零件包装代码 SOIC SOIC
包装说明 SOP, SOP,
针数 28 28
Reach Compliance Code unknow unknow
ECCN代码 EAR99 EAR99
模拟集成电路 - 其他类型 BRUSH DC MOTOR CONTROLLER BRUSH DC MOTOR CONTROLLER
JESD-30 代码 R-PDSO-G28 R-PDSO-G28
JESD-609代码 e3 e3
长度 17.93 mm 17.93 mm
湿度敏感等级 3 3
功能数量 1 1
端子数量 28 28
最高工作温度 125 °C 125 °C
最低工作温度 -40 °C -40 °C
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 SOP SOP
封装形状 RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE SMALL OUTLINE
峰值回流温度(摄氏度) 260 260
认证状态 Not Qualified Not Qualified
座面最大高度 2.64 mm 2.64 mm
最大供电电压 (Vsup) 5.5 V 5.5 V
最小供电电压 (Vsup) 4.5 V 4.5 V
标称供电电压 (Vsup) 5 V 5 V
表面贴装 YES YES
温度等级 AUTOMOTIVE AUTOMOTIVE
端子面层 MATTE TIN Matte Tin (Sn)
端子形式 GULL WING GULL WING
端子节距 1.27 mm 1.27 mm
端子位置 DUAL DUAL
处于峰值回流温度下的最长时间 40 40
宽度 7.52 mm 7.52 mm
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