參數資料
型號: A8904SLP-T
元件分類: 運動控制電子
英文描述: BRUSHLESS DC MOTOR CONTROLLER, 1.4 A, PDSO28
封裝: 1.20 MM HEIGHT, LEAD FREE, TSSOP-28
文件頁數: 14/18頁
文件大?。?/td> 736K
代理商: A8904SLP-T
3-Phase Brushless DC Motor Controller/Driver
with Back EMF Sensing
A8904
5
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5.0 V
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Logic Supply Voltage
VDD
Operating
4.5
5.0
5.5
V
Logic Supply Current
IDD
Operating
7.5
10
mA
Sleep mode
250
500
μA
Undervoltage Threshold
UVLO
Decreasing VDD
3.6
V
Increasing VDD
3.9
V
Load Supply Voltage
VBB
Operating
4.0
14
V
Load Supply Current
IBB
Operating
4.0
8.0
mA
Sleep mode
20
30
μA
Thermal Shutdown
TJ
165
°C
Thermal Shutdown Hysteresis
ΔTJ
20
°C
Output Drivers
Output Leakage Current
IDSX
VBB = 14 V, VOUT = 14 V, sleep mode
200
300
μA
VBB = 14 V, VOUT = 0 V
-2.0
-15
μA
Total Output ON Resistance
rDS(on)
IOUT = 600 mA
1.0
1.4
Ω
(source + sink + RS)
Output Sustaining Voltage
VDS(sus)
VBB = 14 V, IOUT = IOUT(MAX), L = 3 mH
14
V
Clamp Diode Forward Voltage
VF
IF = 1.0 A
1.25
1.5
V
Control Logic
Logic Input Voltage
VIN(0)
SECTOR DATA, RESET, CLK,
0.8
V
VIN(1)
CHIP SELECT, OSC
2.0
V
Logic Input Current
IIN(0)
VIN = 0 V
-0.5
μA
IIN(1)
VIN = 5.0 V
±1.0
μA
BRAKE Threshold
VBRK
1.5
1.75
2.0
V
BRAKE Hysteresis Current
IBRKL
VBRK = 750 mV
4.0
μA
BRAKE Current
IBRK
Brake set, D2 = 1, IBRK = 750 mV
20
μA
DATA Output Voltage
VOUT(0)
IOUT = 500 μA
1.5
V
VOUT(1)
IOUT = -500 μA
3.5
V
CST Current
ICST
Charging
-9.0
-10
-11
μA
Discharging, VCST = 2.5 V
500
μA
CST Threshold
VCSTH
High
2.25
2.5
2.75
V
VCSTL
Low
0.85
1.0
1.15
V
Filter Current
IFILTER
Charging
-9.0
-10
-11
μA
Discharging
9.0
10
11
μA
Leakage, VFILTER = 2.5 V
±5.0
nA
Filter Threshold
VFILTERTH
1.57
1.85
2.13
V
CD Current
ICD
Charging
-18
-20
-22
μA
(CD1 or CD2)
Discharging
32
40
48
μA
CD Current Matching
ICD(DISCHRG)/ICD(CHRG)
1.8
2.0
2.2
CD Threshold
VCDTH
2.25
2.5
2.75
V
CD Input Leakage
ICDIL
1.0
μA
Continued next page …
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