L5950 データシートの表示（PDF） - STMicroelectronics

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L5950

MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO

STMicroelectronics 

L5950

ELECTRICAL CHARACTERISTICS (continued)

Symbol

VDROPOUT

Parameter

Dropout Voltage (Measure

VBAT- VREG3 when VREG3

drops 0.1V)

Ilim3

SVR

Current Limit

Ripple Rejection

8/10V/1A REG 4 OUTPUT

Test Condition

(Measure VBAT- VREG3 when

VREG3 drops 0.1V)

IREG3 = 175mA

IREG3 = 5mA

fo = 1kHz, VBAT = 14V

with 1Vpp AC

IREG3 = 175mA

VREG4

Output Voltage

∆Vline

Line Regulation

∆Vload

VDROPOUT

Load Regulation

Dropout Voltage

Ilim4

SVR

Current Limit

Ripple Rejection

5V/250mA REG 5 OUTPUT

IREG4 = 1A

b5 = 0

b5 = 1

11V ≤ VBAT ≤ 26V, b5 = 1

(Measure ∆ VREG2 Across VBAT

Range)

5mA ≤ IREG4 ≤ 1A

(Measure VBAT- VREG2 when

VREG2 drops 0.1V)

IREG4 = 1A

IREG4 = 5mA

fo = 1kHz, VBAT = 14V

with 1Vpp AC

IREG4 = 500mA

VREG5

∆Vline

Output Voltage

Line Regulation

∆Vload

VDROPOUT

Load Regulation

Dropout Voltage

Ilim5

SVR

Current Limit

Ripple Rejection

2A HSD1

Vsat

Output Saturation Voltage

IREG5 = 250mA

7V ≤ VBAT ≤ 26V

(Measure ∆ VREG5 Across VBAT

Range)

5mA ≤ IREG5 ≤250mA

(Measure VBAT- VREG5 when

VREG5 drops 0.1V)

IREG5 = 250A

IREG5 = 5mA

fo = 1kHz, VBAT = 14V

with 1Vpp AC

IREG5 = 125mA

IHSD1 = 1A

Continuous Time Operation

Ileak1

Output Leakage Current

Ilim

Current Limiting

0.45A HSD2 & HSD3

Vsat

Output Saturation Voltage

Ileak2,3

Ilim

Output Leakage Current

Current Limiting

All Driver Outputs are Off

RHSD1 = 0.5Ω

IHSD2,3 = 300mA

Continuous Time Operation

All Driver Outputs are Off

RHSD2,3 = 0.5Ω

Min.

0.5

50

7.6

9.50

1.3

50

4.75

320

50

-50

2.4

-50

0.56

Typ.

8

10

5

Max.

950

600

1

8.4

10.5

50

150

950

600

2.4

5.25

40

100

1.6

1.2

700

0.5

50

4

0.6

50

1

Unit

mV

mV

A

dB

V

V

mV

mV

mV

mV

A

dB

V

mV

mV

V

V

mA

dB

V

µA

A

V

µA

A

4/8

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