ZXLD1370

ZXLD1370

Document number: DS32165 Rev. 4 - 2

6 of 36

www.diodes.com

March 2011

© Diodes Incorporated

A Product Line of

Diodes Incorporated

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Output Parameters

FLAG pin low level output voltage

Output sinking 1mA

0.5

V

1

µA

STATUS Flag no-load output voltage

(Note 9)

Normal operation

4.2

4.5

4.8

V

(Note 10)

3.3

3.6

3.9

3.3

3.6

3.9

3.3

3.6

3.9

1.5

1.8

2.1

Excess sense resistor current

0.6

0.9

1.2

Normal operation

10

k

Ω

Driver output (PIN GATE)

No load Sourcing 1mA

(Note 11)

10

11

V

Sinking 1mA, (Note 12)

0.5

V

12.8

15

V

Dynamic peak current available during

rise or fall of output voltage

Charging or discharging gate of

400kHz

±300

mA

Time to assert ‘STALL’ flag and

warning on STATUS output

(Note 13)

GATE low or high

100

170

µs

Upper threshold voltage

Onset of output current reduction

560

625

690

mV

Lower threshold voltage

Output current reduced to <10% of

380

440

500

mV

1

µA

Notes:

9. In the event of more than one fault/warning condition occurring, the higher priority condition will take precedence. E.g. ‘Excessive coil current’ and

‘Out of regulation’ occurring together will produce an output of 0.9V on the STATUS pin. The voltage levels on the STATUS output assume the

minimum value of 6V.

internally to prevent it exceeding 15V.

12. GATE is switched to PGND by an NMOS transistor

grounded internally and the SHP pin is switched to its nominal operating voltage, before operation is allowed to resume. Restart cycles will be

remain off until normal operation is possible.