L6227D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L6227D Datasheet PDF : 22 Pages
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L6227
ELECTRICAL CHARACTERISTICS (continued)
(Tamb = 25 °C, Vs = 48V, unless otherwise specified)
Symbol
Parameter
Test Conditions
tD(on)IN Input to out turn ON delay time ILOAD =1.4A, Resistive Load
(dead time included)
tRISE Output rise time(8)
ILOAD =1.4A, Resistive Load
tD(off)EN Enable to out turn OFF delay time (8) ILOAD =1.4A, Resistive Load
tD(off)IN Input to out turn OFF delay time ILOAD =1.4A, Resistive Load
tFALL Output Fall Time (8)
ILOAD =1.4A, Resistive Load
tdt Dead Time Protection
fCP Charge pump frequency
-25°C<Tj <125°C
Min Typ Max Unit
1.9
µs
40
250
ns
500 800 1000 ns
500 800 1000 ns
40
250
ns
0.5
1
0.6
µs
1
MHz
PWM Comparator and Monostable
IRCA, IRCB Source Current at pins RCA and VRCA = VRCB = 2.5V
RCB
3.5
5.5
mA
Voffset Offset Voltage on Sense
Comparator
VREFA, VREFB = 0.5V
±5
mV
tPROP Turn OFF Propagation Delay (9)
500
ns
tBLANK Internal Blanking Time on
SENSE pins
1
µs
tON(MIN) Minimum On Time
2.5
3
µs
tOFF PWM Recirculation Time
ROFF = 20KΩ; COFF = 1nF
13
µs
ROFF = 100KΩ; COFF = 1nF
61
µs
IBIAS Input Bias Current at pins VREFA
and VREFB
10
µA
Over Current Protection
ISOVER Input Supply Overcurrent
Protection Threshold
Tj = -25°C to 125°C (7)
2
2.8 3.55
A
ROPDR Open Drain ON Resistance
I = 4mA
40
60
Ω
tOCD(ON) OCD Turn-on Delay Time (10) I = 4mA; CEN < 100pF
200
ns
tOCD(OFF) OCD Turn-off Delay Time (10) I = 4mA; CEN < 100pF
100
ns
(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.
6/22
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