L6208PD datasheet(9/35 Pages) STMICROELECTRONICS

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L6208

Electrical characteristics

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(1)

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

µs

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 protection

ISOVER

Input supply overcurrent protection

threshold

Tj = -25 °C to 125 °C(1)

45.6

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: Switching characteristic definition.

3. See Figure 4: Clock to output delay time.

4. See Figure 5: Minimum timing definition; clock input.

5. See Figure 6: Minimum timing definition; logic inputs.

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: Overcurrent detection timing definition.

Table 5. Electrical characteristics

(Tamb = 25 °C, Vs = 48 V, unless otherwise specified) (continued)

Symbol

Parameter

Test conditions

Min.

Typ. Max. Unit

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