參數(shù)資料
型號： L6460TR
廠商： STMICROELECTRONICS
元件分類： 運動控制電子
英文描述： STEPPER MOTOR CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1 MM HEIGHT, ROHS COMPLIANT, TQFP-64
文件頁數(shù)： 56/139頁
文件大?。?/td> 3837K
代理商： L6460TR
L6460
Electrical specifications
Doc ID 17713 Rev 1
23/139
VFBREF
Synchronous buck regulator
feedback reference voltage
SelFBRef = ‘00’
0.776
0.8
0.824
V
SelFBRef = ‘01’ (21)
0.97
1
1.03
V
SelFBRef = ‘10’ (22)
2.425
2.5
2.575
V
SelFBRef = ‘11’
2.91
3
3.09
V
IGPIO_FB
GPIO feedback pin current
Tjunction = 125°C
0V
≤Feedback ≤ 3V
-15
15
A
Vout
Output voltage range
VSupply = 36V
(23)
0.8
30
V
Iload
Output load current
VSupply = 36V
0.002
1.5
A
RDSonHS
Internal high/low side RDSon
Tjunction = 125°C; Iload=1A
0.6
0.8
Ω
Vloop
Loop voltage accuracy
±3%
VREG_UV_f
Under voltage falling threshold (24)
84.5
87
89.5
%
VREG_UV_r
Under voltage rising threshold
90.5
93
95.5
%
VREG_UV_hys
Under voltage hysteresis
6
%
taux_UV
Under voltage deglitch filter
5
s
Ilimit
Current limit protection
1.6
2.5
A
tdeglitch
Current limit deglitch time
50
ns
tI_lim
Current limit response time
Normal operating mode
(no UV) (11)
480
700
ns
tI_limUV
Current limit response time in
UV condition.
UV condition (12)
350
500
ns
tr
Switching output rise time
VSupply = 36V,
RLOAD = 422 Ω
(25)
530
ns
tf
Switching output fall time
VSupply = 36V,
RLOAD = 10 Ω
10
50
ns
tdead
Crossover dead time
100
ns
FREGPWM
Operating frequency
Fosc/64
kHz
Battery charger (Bridge 4)
VAUX3_SW
Output pin voltage range
(DC4x)
(26)
-1
VSupply
V
IQ
Output leakage current
Tjunction = 125°C
-100
+100
A
VFBRef
Battery charger control loop
feedback reference voltage
SelFBRef = ‘00’
1.37
1.412
1.455
V
SelFBRef = ‘01’ (8)
1.746
1.8
1.854
V
SelFBRef = ‘10’
2.079
2.143
2.207
V
SelFBRef = ‘11’
2.425
2.5
2.575
V
Table 5.
Electrical characteristics (continued)
Parameter
Description
Test condition
Min
Typ
Max
Unit
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