L4954 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

比赛名单

L4954

Quad multifunction voltage regulator for car radio

STMicroelectronics 

L4954

Electrical specifications

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

0.3 A HSD2 & HSD3

Vsat

Iq

Ilim

Ileak2,3

Maximum output current

saturation voltage

Quiescent current

Current limit

Output leakage current

SVR2 Reg 1supply voltage rejection

LVWARN OUTPUT

THLVW LVW threshold on STCAP

VLVW LVW output voltage

trise

LVW output rise time

tfall

LVW output fall time

Reset output

THRES Reset threshold on reg 4

VRES Reset output voltage

trise

Reset output rise time

tfall

Reset output fall time

RHSD2,3 = 53 Ω

-

RHSD2.3 = 0.5 Ω

All driver outputs are off

f = 0.12 to 10 kHz;

IOUT8.5 = 100 mA; VRIP =1Vpp

-

STCAP < 7.5 V; VIL = ”0”

STCAP > 7.5 V VIH = ”1”

CLVW = 0.1 µF

-

Set VS so that VOUT5STBY < 4.5 V;

VIL = ”0”

Set VS so that VOUT5STBY is not

less than normal reg 4 output

voltage; VIH = ”1”

CRESET =0.1 µF

-

-

-

-

-

-

0

2.75

-

-

-

0

2.75

-

-

Typ.

150

1.5

500

10

55

7.5

-

-

3.9

12.6

4.5

-

-

4.5

37

Max. Unit

- mV

- mA

- mA

-

µA

-

dB

-

V

0.4 V

5

V

-

ms

-

µs

-

V

0.4 V

5

V

-

ms

-

µs

Doc ID 17719 Rev 1

9/13

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