L6460 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6460' PDF : 139 Pages View PDF
L6460
Electrical specifications
Table 5. Electrical characteristics (continued)
Parameter
Description
Test condition
VFBREF
Synchronous buck regulator
feedback reference voltage
SelFBRef = ‘00’
SelFBRef = ‘01’ (21)
SelFBRef = ‘10’ (22)
SelFBRef = ‘11’
IGPIO_FB
Vout
Iload
RDSonHS
Vloop
VREG_UV_f
VREG_UV_r
VREG_UV_hys
taux_UV
Ilimit
tdeglitch
tI_lim
GPIO feedback pin current
Tjunction = 125°C
0V≤Feedback ≤ 3V
Output voltage range
VSupply = 36V(23)
Output load current
VSupply = 36V
Internal high/low side RDSon Tjunction = 125°C; Iload=1A
Loop voltage accuracy
Under voltage falling threshold (24)
Under voltage rising threshold (24)
Under voltage hysteresis
Under voltage deglitch filter
Current limit protection
Current limit deglitch time
Current limit response time
Normal operating mode
(no UV) (11)
tI_limUV
Current limit response time in
UV condition.
UV condition (12)
tr
Switching output rise time
tf
tdead
FREGPWM
Switching output fall time
Crossover dead time
Operating frequency
VSupply = 36V,
RLOAD = 422 Ω(25)
VSupply = 36V,
RLOAD = 10 Ω (23)
Battery charger (Bridge 4)
VAUX3_SW
IQ
VFBRef
Output pin voltage range
(DC4x)
Output leakage current
Battery charger control loop
feedback reference voltage
(26)
Tjunction = 125°C
SelFBRef = ‘00’
SelFBRef = ‘01’ (8)
SelFBRef = ‘10’
SelFBRef = ‘11’
Min Typ Max Unit
0.776 0.8 0.824 V
0.97
1
1.03
V
2.425 2.5 2.575 V
2.91
3
3.09
V
-15
15
µA
0.8
30
V
0.002
1.5
A
0.6 0.8
Ω
±3%
84.5 87 89.5 %
90.5 93 95.5 %
6
%
5
µs
1.6
2.5
A
50
ns
480 700 ns
350 500 ns
5
30
ns
10
50
ns
100
ns
Fosc/64
kHz
-1
VSupply
V
-100
+100 µA
1.37 1.412 1.455 V
1.746 1.8 1.854 V
2.079 2.143 2.207 V
2.425 2.5 2.575 V
Doc ID 17713 Rev 1
23/139
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