L6228Q datasheet(8/32 Pages) STMICROELECTRONICS

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Electrical characteristics

L6228Q

8/32

Doc ID 14321 Rev 4

fCLK

Clock frequency

100

kHz

tS(MIN)

Minimum set-up 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

Dead time 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

2.5

µs

tOFF

PWM recirculation time

ROFF = 20 kΩ; COFF = 1 nF

µs

ROFF = 100 kΩ; COFF = 1 nF

µs

IBIAS

Input bias current at pins VREFA and

VREFB

µA

Over current protection

ISOVER

Input supply overcurrent protection

threshold

Tj = -25 °C to 125 °C

(1)

2.8

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

Tested at 25 °C in a restricted range and guaranteed by characterization

See Figure 3.

See Figure 4.

See Figure 5.

See Figure 6.

Measured applying a voltage of 1 V to pin SENSE and a voltage drop from 2 V to 0 V to pin VREF.

See Figure 7.

Table 5.

Electrical characteristics (continued) (TA = 25 °C, Vs = 48 V, unless otherwise specified)

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

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