L6460 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6460' PDF : 139 Pages View PDF
Electrical specifications
L6460
Table 5. Electrical characteristics (continued)
Parameter
Description
Test condition
Min Typ Max
Vloop
VSW_UV_f
VSW_UV_r
VSW_UV_hys
tprim_uv
Ilimit
tdeglitch
tI_lim
tI_limUV
tr
tf
FSW_PWM
Loop voltage accuracy
Under voltage falling threshold (10)
Under voltage rising threshold (10)
Under voltage hysteresis
Under voltage deglitch filter
Current limit protection
SelIlimit =”0”
SelIlimit =”1”
Current limit deglitch time
Current limit response time
Normal operating mode (no
UV)(11)
Current limit response time in
UV condition
UV condition (12)
Switching output rise time
Switching output fall time
VSupply = 36V,
RLOAD = 422 Ω(13)
VSupply = 36V,
RLOAD = 10 Ω(13)
Operating frequency
±3%
84.5 87 89.5
90.5 93 95.5
6
5
3.3
5
2.3 3.5
50
450 650
200 400
5
30
5
30
Fosc/6
4
Switching regulator controller
VGS_ext
ISOURCE
ISINK
tSINK
RSUSTAIN
IQ
IQ_LP
VFBREF
ISWDRV_FB
Vloop
Gate to source voltage for
external FET
Source current
Sink current
Sink discharge pulse time
Gate-source sustain
resistance
Output
leakage current
Output leakage current in
“Low Power Mode”
Switching regulator feedback
controller feedback reference
voltage
VSWDRV_FB pin current
Loop voltage accuracy
VPump=VSupply+12V
VSWCTR_GATE=0V
VSWCTR_GATE = VSupply
(VSWCTR_GATE -
VSWCTR_SRC) = 0.2V
VSupply = 36V,
Tjunction = 125°C
VSupply = 36V,
Tjunction = 125°C
SelFBref = ‘00’ (8)
SelFBref = ‘01’
SelFBref = ‘10’
SelFBref = ‘11’
VSupply = 36V,
Tjunction = 125°C
VPump
25
50
20
600
650
-40
+40
-5
+5
0.776 0.8 0.824
0.97
1
1.03
2.425 2.5 2.575
2.91
3
3.09
-10
+10
±3%
Unit
%
%
%
µs
A
A
ns
ns
ns
ns
ns
kHz
V
mA
mA
ns
Ω
µA
µA
V
V
V
V
µA
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Doc ID 17713 Rev 1
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