L9680 datasheet(241/277 Pages) STMICROELECTRONICS

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L9680

Electrical characteristics

276

16.11

COVRACT

All electrical characteristics are valid for the following conditions unless otherwise noted:

-40 °C

 Ta  +95 °C, VINGOOD0  VIN  35 V; VINGOOD(max)  VIN  35 V;

VCCx(min)

 VCCx  VCCx(max); VCC = 3.3 V or 5 V

16.12

SYNCBOOST converter

All electrical characteristics are valid for the following conditions unless otherwise noted:

-40 °C

 Ta  +95 °C, VINGOOD0  VIN  VINSYNC_DIS_X(min)

Table 42. COVRACT DC specifications

Symbol

Parameter

Conditions

Min

Typ

Max Unit

VOH_COVRACT

COVRACT output voltage

ILOAD = -0.5 mA

VCC

-0.6

VCC

2VOL_COVRACT

ILOAD = 2.0 mA

0.4

3IREV_COVRACT

Reverse current short high

voltage

COVRACT = 40 V

VCC = 3.3 V

Table 43. COVRACT AC specifications

Symbol

Parameter

Conditions

Min

Typ

Max Unit

1TRISE_COVRACT Rise time

50 pF load, 20%-80%

1.00

μs

2TFALL_COVRACT Fall time

50 pF load, 20%-80%

1.00

μs

Table 44. SYNCBOOST converter DC specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VO_SYNCBST

SYNCBOOST output

voltage

Across all line and load,

steady state

SYS_CTL(SYBST) = 0

11.40

Across all line and load

(steady state)

SYS_CTL(SYBST) = 1

14.00 14.75

3IO_SYNCBST_VL_IH

SYNCBOOST output

current

SYS_CTL(SYBST_V) = 0

SYS_CFG(LOW_POWER_M

ODE) = 0

360

4IO_SYNCBST_VL_IL

SYS_CTL(SYBST_V) = 0

SYS_CFG(LOW_POWER_M

ODE) = 1

240

5IO_SYNCBST_VH_IH

SYS_CTL(SYBST_V) = 1

SYS_CFG(LOW_POWER_M

ODE) = 0

290

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