L6228Q View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L6228Q' PDF : 32 Pages View PDF
Electrical characteristics
L6228Q
Table 5. Electrical characteristics (continued) (TA = 25 °C, Vs = 48 V, unless otherwise specified)
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
tS(MIN)
tH(MIN)
tR(MIN)
tRCLK(MIN)
Minimum set-up time(5)
Minimum hold time(5)
Minimum reset time(5)
Minimum reset to clock delay time(5)
tDT
Dead time protection
fCP
Charge pump frequency
TJ = -25 °C to 125 °C (1)
0.5 1
0.6
1 µs
1 µs
1 µs
1 µs
µs
1 MHz
PWM comparator and monostable
IRCA, IRCB Source current at pins RCA and RCB
Voffset
tPROP
Offset voltage on sense comparator
Turn-OFF propagation delay(6)
tBLANK Internal blanking time on SENSE pins
tON(MIN) Minimum on time
tOFF PWM recirculation time
IBIAS
Input bias current at pins VREFA and
VREFB
Over current protection
VRCA = VRCB = 2.5 V
VREFA, VREFB = 0.5 V
ROFF = 20 kΩ; COFF = 1 nF
ROFF = 100 kΩ; COFF = 1 nF
3.5 5.5
mA
±5
mV
500
ns
1
µs
2.5 3 µs
13
µs
61
µs
10 µA
ISOVER
Input supply overcurrent protection
threshold
Tj = -25 °C to 125 °C (1)
ROPDR
tOCD(ON)
tOCD(OFF)
Open drain ON resistance
OCD turn-ON delay time(7)
OCD turn-OFF delay time(7)
I = 4 mA
I = 4 mA; CEN < 100 pF
I = 4 mA; CEN < 100 pF
1. Tested at 25 °C in a restricted range and guaranteed by characterization.
2. See Figure 3.
3. See Figure 4.
4. See Figure 5.
5. See Figure 6.
6. Applying a voltage of 1 V to pin SENSE and a voltage drop from 2 V to 0 V to pin VREF.
7. See Figure 7.
2.8
A
40 60 W
200
ns
100
ns
8/32
Doc ID 14321 Rev 5
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