L5955 datasheet(9/17 Pages) STMICROELECTRONICS

9 / 17 page

L5955

Electrical specification

9/17

1.8-2.5V/200mA REG6 output

VREG6

Output voltage

IREG6 = 200mA

1.71

2.38

1.89

2.62

ΔV

line

Line regulation

≤ V

BAT ≤ 18V (measure Δ

VREG6 across VBAT range)

ΔV

load

Load regulation

5mA

≤ I

REG6 ≤ 200mA

VDROPOUT

Dropout voltage (measure VBAT -

VREG6 when VREG6 drops 0.1V)

IREG6 = 200mA @ VREG6=1.8V

IREG6 = 5mA @ VREG6=1.8V

IREG6 = 200mA @ VREG6=2.5V

IREG6 = 5mA @ VREG6=2.5V

4.89

4.29

4.22

3.62

Ilim6

Current limit

240

600

SVR

Ripple rejection (guaranteed by

characterization-test at 1kHz with

50dB limit)

2A HSD1

Vsat

Output saturation voltage

IHSD1 = 1A

continuous time operation

IHSD1=2A t=5seconds

0.6

1.2

Ileak1

Output leakage current

All Driver Outputs are Off

μA

Ilim

Current limiting

RHSD1 = 0.5Ω

2.4

0.45A HSD2 & HSD3

Vsat

Output saturation voltage

IHSD2,3 = 300mA

continuous time operation

IHSD2,3=450mA t=5 seconds

0.6

1.2

Ileak2,3

Output leakage current

All driver outputs are Off

μA

Ilim

Current limiting

RHSD2,3 = 0.5Ω

0.550

Characteristics for I2C

VIL

LOW level input voltage

1.5

VIH

HIGH level input voltage

VHYS

Input hysteresis

0.2

VOL1

LOW level output

Sink current = 3mA

Sink current = 6mA

0.4

0.6

Input current

0.5V

≤ V

I ≤ 4.5V

μA

fSCL

SCL clock frequency

400

kHz

Table 4.

Electrical characteristics (continued)

(Refer to the application circuit, Vbat =Vbat1+Vbat2+Vbat3= 14V, IST-BY1 = 0.5mA, IST-BY2 =

0.5mA, IREG1 = IREG2 = IREG3 = IREG4 = IREG5 = IREG6 = 5mA, RHSD1 = RHSD2 = RHSD3 = 16Ω)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

L5955 数据表(PDF) 9 Page - STMicroelectronics

L5955 数据表(HTML) 9 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

数据表下载