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参数资料
| 型号： | TDA7473A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 3/7页 |
| 文件大小： | 182K |
| 代理商： | TDA7473A |
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VSUP
DC Supply Voltage
18
V
VS
Channel Power Supply
6
V
TOP
Operating Temperature Range
-25 to 80
°C
TJ
Maximum Junction Temperature
150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-amb
Thermal Resistance Junction to Ambient
Max.
50 (*)
°C/W
Rth j-pins
Thermal Resistance Junction to Pins
Typ.
17
°C/W
(*) with 6cm
2 of copper heatsink on board.
ELECTRICAL CHARACTERISTICS (@ VSUP = 6V, Tamb =25
°C, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VSUP
Supply Voltage
6
15
V
Maximum Power Dissipation (1)
1.5
W
Quiescent current (2) from VS
V(pin 4, 11, 18, 25) =5V
20
35
mA
Quiescent current (2) from 5V
V(pin 1) = 5V, R2 =
∞
1.8
2.5
mA
Quiescent current (2) from VSUP
VSUP = 15V
1.3
2.5
mA
VSUP =6V
1
2
mA
Stand-by current from 5V (pin 1)
V(pin 1) = 5V, R2 =
∞
1.2
2
mA
Stand-by current from VSUP
VSUP = 15V
0.4
0.8
mA
VSUP = 6V
0.3
0.6
mA
CHANNELS BTL
Peak output current for channels
0.6
A
VSAT
VSAT HIGH SIDE
I = 0.6A; VS = 5V
1.3
1.6
A
VSAT LOW SIDE
I = 0.6A; VS = 5V
0.7
0.9
A
Output voltage swing peak-to-
peak
VS = 5V, Iout = 0.6A
5.5
6
Vpp
Voltage gain for channels
25.5
26.5
27.5
dB
Channels output offset voltage
-180
-50
100
mV
VST-BY
Channel St-By Threshold
Active --> St-By
0.65 Vreg 0.75 Vreg 0.85 Vreg
V
St-By --> Active
0.50 Vreg
V
REGULATORS
V5V
Vpin 1
Iout = 0.2A
4.85
5.05
5.25
V
Min drop 5V --> REG
Iout = 0.2A
1.2
1.3
V
IDRIV
Output current from DRIV for
pass-transistor driving
50
100
mA
Output current from DRIV in
stand-by
20
50
80
mA
DROP VSUP --> DRIV
IDRIV = 20mA
0.2
0.25
V
Threshold voltage for overcurr.
protection (VSUP - OC)
VSUP = 6V
190
230
270
mV
VSUP = 12V
120
160
200
mV
VSUP = 15V
80
100
120
mV
VREG
Regulator Voltage
R1, R2 = 1K
2.45
2.53
2.65
V
Min REG voltage (settable)
1.8
2
V
Max REG voltage (settable)
3.6
3.8
V
Output current from REG in
Stand-by
R1, R2 = 1K
20
mA
(1) @ Tamb =70
°C, on board 6cm2 copper heatsink
(2) INx = COMM; no loads on the regulators outputs
(3) Device is active when St-By = Low
TDA7473
3/5
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相关代理商/技术参数 |
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