Datasheet

L6227
6/22
(7) Tested at 25°C in a restricted range and guaranteed by characterization.
(8) See Fig. 1.
(9) Measured applying a voltage of 1V to pin SENSE and a voltage drop from 2V to 0V to pin VREF.
(10) See Fig. 2.
t
D(on)IN
Input to out turn ON delay time
I
LOAD
=1.4A, Resistive Load
(dead time included)
1.9 µs
t
RISE
Output rise time
(8)
I
LOAD
=1.4A, Resistive Load 40 250 ns
t
D(off)EN
Enable to out turn OFF delay time
(8)
I
LOAD
=1.4A, Resistive Load 500 800 1000 ns
t
D(off)IN
Input to out turn OFF delay time
I
LOAD
=1.4A, Resistive Load 500 800 1000 ns
t
FALL
Output Fall Time
(8)
I
LOAD
=1.4A, Resistive Load 40 250 ns
t
dt
Dead Time Protection 0.5 1 µs
f
CP
Charge pump frequency
-25°C<T
j
<125°C 0.6 1 MHz
PWM Comparator and Monostable
I
RCA,
I
RCB
Source Current at pins RC
A
and
RC
B
V
RCA
= V
RCB
= 2.5V 3.5 5.5 mA
V
offset
Offset Voltage on Sense
Comparator
V
REFA,
V
REFB
= 0.5V ±5 mV
t
PROP
Turn OFF Propagation Delay
(9)
500 ns
t
BLANK
Internal Blanking Time on
SENSE pins
1µs
t
ON(MIN)
Minimum On Time 2.5 3 µs
t
OFF
PWM Recirculation Time R
OFF
= 20KΩ; C
OFF
= 1nF 13 µs
R
OFF
= 100KΩ; C
OFF
= 1nF 61 µs
I
BIAS
Input Bias Current at pins VREF
A
and VREF
B
10 µA
Over Current Protection
I
SOVER
Input Supply Overcurrent
Protection Threshold
T
j
= -25°C to 125°C
(7)
2 2.8 3.55 A
R
OPDR
Open Drain ON Resistance I = 4mA 40 60 Ω
t
OCD(ON)
OCD Turn-on Delay Time (10) I = 4mA; C
EN
< 100pF 200 ns
t
OCD(OFF)
OCD Turn-off Delay Time (10) I = 4mA; C
EN
< 100pF 100 ns
ELECTRICAL CHARACTERISTICS (continued)
(T
amb
= 25 °C, V
s
= 48V, unless otherwise specified)
Symbol Parameter Test Conditions Min Typ Max Unit