L6208Q datasheet(9/34 Pages) STMICROELECTRONICS

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L6208Q

Electrical characteristics

tCLK(min)L Minimum clock time(4)

1µs

tCLK(min) H Minimum clock time(4)

1µs

fCLK

Clock frequency

100

kHz

tS(MIN)

Minimum setup time(5)

1µs

tH(MIN)

Minimum hold time(5)

1µs

tR(MIN)

Minimum reset time(5)

1µs

tRCLK(MIN ) Minimum reset to clock delay time(5)

1µs

tDT

Deadtime protection

0.5

µs

fCP

Charge pump frequency

Tj = -25 °C to 125 °C(7)

0.6

MHz

tDT

Deadtime protection

0.5

µs

fCP

Charge pump frequency

-25 °C < Tj < 125 °C

0.6

MHz

PWM comparator and monostable

IRCA, IRCB

Source current at pins RCA and

RCB

VRCA = VRCB = 2.5 V

3.5

5.5

Voffset

Offset voltage on sense comparator VREFA, VREFB = 0.5 V

±5

tPROP

Turn OFF propagation delay(6)

500

tBLANK

Internal blanking time on SENSE

pins

1µs

tON(MIN)

Minimum ON time

1.5

µs

tOFF

PWM recirculation time

ROFF = 20 k; COFF = 1 nF

µs

ROFF = 100 k; COFF = 1 nF

µs

IBIAS

Input bias current at pins VREFA and

VREFB

µA

Overcurrent detection

Isover

Input supply overcurrent detection

threshold

-25 °C < Tj < 125 °C

5.6

7.1

ROPDR

Open drain ON resistance

I = 4 mA



tOCD(ON)

OCD turn-on delay time (7)

I = 4 mA; CEN < 100 pF

200

tOCD(OFF) OCD turn-off delay time (7)

I = 4 mA; CEN < 100 pF

100

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. Measured 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.

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ. Max. Unit

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