Datasheet

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SLVS289A − MARCH 2000 − REVISED OCTOBER 2000
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics T
J
= 0° to 125°C, V
CC
= 2.8 V to 5.5 V (unless otherwise noted) (continued)
thermal shutdown
PARAMETER CONDITIONS MIN TYP MAX UNITS
Over temperature trip point See Note 2 145 °C
Hysteresis See Note 2 10 °C
NOTE 2. Ensured by design, not production tested.
synch charge pump regulator
PARAMETER CONDITIONS MIN TYP MAX UNITS
Internal oscillator frequency
2.8 V < V
IN
< 5.5 V, I
DRV
= 50 mA,
VDRV=5 V , See Note 2
200 300 400 kHz
Internal oscillator turnon threshold V
CC
above UVLO threshold, See Note 2 5.05 5.2 V
Internal oscillator turnon hysteresis V
CC
above UVLO threshold, See Note 2 20 mV
NOTE 2. Ensured by design, not production tested.
hysteretic comparator (charge pump)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Threshold V
IN
above UVLO threshold, See Note 2 5.05 5.2 V
Hysteresis V
IN
above UVLO threshold, See Note 2 20 mV
NOTE 2. Ensured by design, not production tested.
deadtime circuit
PARAMETER CONDITIONS MIN TYP MAX UNITS
LOSENSE/LOHIB high level input voltage V
HISENSE
=2.55 V – 5.5 V, See Note 2 2.4 V
LOSENSE/LOHIB low level input voltage V
HISENSE
=2.55 V – 5.5 V, See Note 2 1.33 V
LOWDR high-level input voltage V
HISENSE
=2.55 V–5.5 V, See Note 2 3 V
LOWDR low-level input voltage V
HISENSE
=2.55 V–5.5 V, See Note 2 1.7 V
Driver nonoverlap time
C
LOWDR
= 9 nF, 10% threshold on LOWDR,
VDRV=5 V
40 170 ns
NOTE 2. Ensured by design, not production tested.