L9678P datasheet(187/215 Pages) STMICROELECTRONICS

187 / 215 page

DS11626 Rev 9

187/216

L9678P, L9678P-S

Electrical characteristics

214

16.14

VSUP regulator

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

-40 °C  Ta  +95 °C, VINGOOD2(max)  VIN  35 V.

Table 42. VSUP regulator DC specifications

N°

Symbol

Parameter

Condition

Min. Typ. Max. Unit

VO_VSUP

Output voltage

Across all line and load,

steady state

6.5

6.8

7.1

IO_BVSUP

Base driver current limit

IO_VSUP

Output load current

0.5

200

dVSR_ac

Line transient response

All load IO_VDD5;

VIN = 6 V to 18 V @ dt = 1 µs;

Design Info

6.2

7.4

dVLR_ac

Load transient response

All line;

IO_VDD5= 1mA to 100mA @dt = 1µs;

Design Info

6.2

7.4

VSUPOV

Over voltage detection

7.6

VSUPUV

Under voltage detection -

1.8

2.2

Table 43. VSUP AC specifications

N°

Symbol

Parameter

Condition

Min. Typ. Max. Unit

1 TSOFTST_VSUP Soft start time

From 10% to 90%

TFLT_VSUPOV

Over voltage

deglitch filter time

µs

TFLT_VSUPUV

Under voltage

deglitch filter time

µs

Table 44. VSUP regulator external components (Design Info)

N°

Symbol

Component

Conditions

Min. Typ. Max. Unit

hFE_PNP

Output transistor gain

250

500

A/A

Ft_PNP

Output transistor

transit frequency

MHz

RVSUPBE

Output transistor Base-

Emitter

Pull-up Resistance

kΩ

CBLK_VSUP

Output Bulk Capacitance

Min 4.7µF nominal

µF

5 ESRCBLK_VSUP Bulk Capacitor ESR

mΩ

L9678P Datasheet(PDF) 187 Page - STMicroelectronics

L9678P Datasheet(HTML) 187 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL