L5965 datasheet(8/73 Pages) STMICROELECTRONICS

8 / 73 page

Table 5. Maximum suggested power

Symbol

Tamb 125 ° C

Tamb 105 ° C

Tamb 80 ° C

Rth j-a-2s

0.53 W

0.9 W

1.2 W

Rth j-a-2s2p

1.1 W

1.8 W

2.6 W

Rth j-a-2s2pvias

1.35 W

2.3 W

3.2 W

3.3

Electrical characteristics

VBAT1 supplies pre-BUCK1 circuitry pre-BUCK1 circuitry the inner reference circuit (band-gap and oscillator) and

VREF.

VBAT2 supplies BUCK2, VSLDO supplies the LDO, VIN3 supplies BUCK3 and VIN4 supplies BUCK4.

VBAT1,2 = 14 V, Tamb = –40 °C to 125 °C, unless otherwise specified.

Table 6. Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

General characteristics

VBAT1

Operating range

32(1)

VBAT2

Operating range

32(1)

ISTANDBY1

STANDBY mode total current

consumption on VBAT1

All regulators off, VBAT1 = 14 V, non-supply

inputs floating, current consumption from

the supplies

µA

ISTANDBY2

STANDBY mode total current

consumption on VBAT2

All regulators off, VBAT2 = 14 V, non-supply

inputs floating, current consumption from

the supplies

µA

IACTIVE

ACTIVE mode total current

consumption

Main BUCK only, VBAT1-2 = 14 V,

EXTSUP = 0 V

IACTIVE_ALL

ACTIVE mode total current

consumption

All regulators ON,

VBAT1-2 = 14 V,EXTSUP = 0 V

SRVBAT1-2_UP(2)

Rising supply voltage slew rate on

VBAT1 and VBAT2

kV/s

Supply monitors

VUV

Under-voltage threshold for VBAT1

and VBAT2

Supply decreasing

5.3

5.8

6.3

VUV_HYS

Under-voltage hysteresis

0.2

0.4

VOK

OK threshold for VBAT1 or

VBAT2, depending on which is the

main regulator

Supply increasing

5.5

6.5

VOK_HYS

OK-voltage hysteresis

0.2

0.4

VOV

Over-voltage threshold for VBAT1

and VBAT2

Supply increasing

VOV_HYS

Over-voltage hysteresis

–

2.4

tUVOV_filter

Over/under voltage filter time

µs

VRESETB

RESETB pin low output voltage

IRESET = 1 mA

0.1

0.25

TRESETB

RESETB pulse duration

µs

VFAULT

FAULT pin low output voltage

IFAULT = 1 mA

0.1

0.25

L5965

Electrical characteristics

DS12567 - Rev 3

page 8/73

L5965 数据表(PDF) 8 Page - STMicroelectronics

L5965 数据表(HTML) 8 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

数据表下载