Datasheet

Electrical specifications L6460
24/139 Doc ID 17713 Rev 1
V
CurrRef
Battery charger control loop
feedback reference current
SelCurrRef = ‘00’
(8)
0.873 0.9 0.927 V
SelCurrRef = ‘01’ 1.394 1.437 1.48 V
SelCurrRef = ‘10’ 1.746 1.8 1.854 V
SelCurrRef = ‘11’ 2.182 2.25 2.318 V
V
out
Output voltage range V
Supply
= 36V
(27)
1.412 30 V
I
load
Output load current V
Supply
= 36V 0.002 3 A
R
DSon
Internal high/low side R
DSon
T
junction
= 125°C;
I
LOAD
= 1.5A
0.3 0.4 Ω
V
loop
Loop voltage accuracy ±3%
V
BC_UV_f
Under voltage falling threshold
(28)
84.5 87 89.5 %
V
BC_UV_r
Under voltage rising threshold
(28)
90.5 93 95.5 %
V
BC_UV_hys
Under voltage hysteresis 6 %
t
aux_UV
Under voltage deglitch filter 5 µs
I
limit
Current limit protection 3.2 5 A
t
deglitch
Current limit deglitch time 50 ns
t
I_lim
Current limit response time
Normal operating mode
(no UV)
(11)
480 700 ns
t
I_limUV
Current limit response time in
UV condition.
UV condition
(12)
350 500 ns
t
r
Switching output rise time
V
Supply
= 36V,
R
LOAD
= 422 Ω
(25)
530ns
t
f
Switching output fall time
V
Supply
= 36V,
R
LOAD
= 10 Ω
(25)
10 50 ns
t
dead
Crossover dead time 100 ns
F
BCPWM
Operating frequency F
osc
/64 kHz
ADC with A2DType=0
(29)
IMR Measurement range A2dType = 0 0 V
3v3
V
INL Integral non-linearity A2dType = 0
(30)(31)
±2 LSB
DNL Differential non-linearity A2dType = 0
(32)(31)
±2 LSB
OE Offset error A2dType = 0
(33)
±4 LSB
OE
Drift
Offset error drift
A2dType = 0 over time
and temperature
±3 LSB
GE Gain error A2dType = 0
(34)
±4 LSB
GE
Drift
Gain error drift
A2dType = 0 over time
and temperature
±4 LSB
t
conv
Minimum conversion time 55 µs
Resolution
(35)
8bits
Table 5. Electrical characteristics (continued)
Parameter Description Test condition Min Typ Max Unit