L6207PD datasheet(6/23 Pages) STMICROELECTRONICS

6 / 23 page

L6207

6/23

(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.

Switching Characteristics

tD(on)EN

Enable to out turn ON delay time (8)

ILOAD =2.8A, Resistive Load

100

250

400

tD(on)IN

Input to out turn ON delay time

ILOAD =2.8A, Resistive Load

(dead time included)

1.6

µs

tRISE

Output rise time(8)

ILOAD =2.8A, Resistive Load

250

tD(off)EN

Enable to out turn OFF delay time (8) ILOAD =2.8A, Resistive Load

300

550

800

tD(off)IN

Input to out turn OFF delay time

ILOAD =2.8A, Resistive Load

600

tFALL

Output Fall Time (8)

ILOAD =2.8A, Resistive Load

250

tdt

Dead Time 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 = 2.5V

3.5

5.5

Voffset

Offset Voltage on Sense

Comparator

VREFA, VREFB = 0.5V

±5

tPROP

Turn OFF Propagation Delay (9)

500

tBLANK

Internal Blanking Time on

SENSE pins

1µs

tON(MIN)

Minimum On Time

1.5

µs

tOFF

PWM Recirculation Time

ROFF = 20KΩ; COFF = 1nF

µs

ROFF = 100KΩ; COFF = 1nF

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

(7)

5.6

7.1

ROPDR

Open Drain ON Resistance

I = 4mA

Ω

tOCD(ON) OCD Turn-on Delay Time (10)

I = 4mA; CEN < 100pF

200

tOCD(OFF) OCD Turn-off Delay Time (10)

I = 4mA; CEN < 100pF

100

ELECTRICAL CHARACTERISTICS (continued)

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

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

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