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參數(shù)資料
| 型號(hào)： | L7203S |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SMOOTH DRIVE SPINDLE MOTOR FOR OPTICAL DRIVE APPLICATION WITH POWER INTEGRATED |
| 中文描述： | 傳動(dòng)平穩(wěn)主軸馬達(dá)驅(qū)動(dòng)功率集成應(yīng)用光學(xué) |
| 文件頁(yè)數(shù)： | 5/13頁(yè) |
| 文件大?。?/td> | 170K |
| 代理商： | L7203S |
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FUNCTIONAL DESCRIPTION
STB-Thermal protection
Controller drive STB pin by open drain.
When Thermal Shutdown is excited, the device
force this pin LOW.
Controller will manage STB to do a re-start.
When STB is LOW all the drivers are shut off.
Hall Sensor Bias
A regulator on chip supply a 3.3V+-10% refer-
ence on pin Bias. This regulator can supply an
output current up-to 15 mA.
Figure 1.
Symbol
BIAS
V
BIAS
I
Bmax
H+, H-
V
H
±
I
H
±
V
OFFISR
VHy
MOTOR POWER STAGE
R
DSON
Parameter
Test Condition
Min.
Typ.
Max.
Unit
BIAS Output Voltage
Max Output Current
V
CC
= 5V; 5mA < I < 15mA
3.25
3.75
15
V
mA
H+ H- Input Voltage Range
Input Leakage Current
Comparator Offset
Comparator Hysteresys
0
2.5
+10
+15
15
V
μ
A
mV
mV
V
in
= 0, +V
CC
-10
-15
4
High and Low side FET on
Resistance
Spindle Output Leakage
Current
T
j
= 125; V
M
= 4.25V
I = 1.2A
V
M
= 15V
2
I
U/V/W
100
μ
A
CURRENT LIMITER
V
Lim
Internal Reference Voltage for
current limitation
Comparator Offset
THERMAL PROTECTION
T
S
Shutdown temperature
UNDERVOLTAGE
V
ccth (fall)
Undervoltage threshold (fall)
V
ccth (rise)
Undervoltage threshold (rise)
V
ccth (hys)
Undervoltage threshold (hys)
SYSTEM FREQUENCY
f
sys
System frequency
220
240
260
mV
V
OFFLim
-15
+15
mV
130
170
°C
2.9
-
-
-
-
-
V
V
V
3.4
-
0.1
PRS = 0
PRS = 1
10
20
20
34
MHz
MHz
SLEW RATE CONTROL
V
SRC
I
SRC
R
SRC
ISR
V
ISR
SRC Output Voltage
Output Current
External Resistor on pin SRC
1.25
V
μ
A
K
500
10
Input Range
0
2
V
Note 1: An SMBJIZAVCL-TR is recommended to clamp V
M
in case of high impedance on power supply line.
DC ELECTRICAL CHARACTERISTICS
(continued)
R PULL UP
OVER TEMP
STB
D98IN880
L7203
5/13
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