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L5955 数据表(PDF) 6 Page - STMicroelectronics

部件名 L5955
功能描述  Multiple multifunction voltage regulator for car radio
PDF  17 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5955 数据表(HTML) 6 Page - STMicroelectronics

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Electrical specification
L5955
6/17
VOL
LVW output voltage
IOL = 100µA
0
0.2
V
TS
Thermal shutdown for HSDS,
REGS, VST-BY1, VST-BY2
HSDS, REGS, VST-BY1, VST-BY2
min. load.
Increase Tamb until HSDS,
REGS, VST-BY1,2 Disabled
170
°C
TS HYS
Thermal shutdown hysteresis for
HSDS, REGS, VST-BY1, VST-BY2
HSDS, REGS, VST-BY1, VST-BY2
min. load.
Decrease Tamb until HSDS,
REGS, VST-BY1,2 Disabled
10
°C
Io
CSLEW output current
7
14
µA
ton
ST-BY1, ST-BY2. minimum turn
on time
CSLEW=7nF; see Figure 5
1.6
ms
3.3V/125mA VST-BY1
VST-BY1 Output voltage
IST-BY1 = 125mA
3.14
3.46
V
ΔV
line
Line regulation
7V
≤ V
BAT ≤ 18V
(Measure
ΔVreg1 across V
BAT
range)
10
mV
ΔV
load
Load regulation
0.5mA
≤ I
ST-BY1 ≤ 125mA
(Measure
ΔVreg1 across V
BAT
range)
50
mV
Iq1
Δ Quiescent current
(measure
ΔI
BAT)
IST-BY1 = 2mA, VBAT = 14V,
IST-BY1 = 125mA, VBAT = 14V
150
10
μA
mA
VDROPOUT
Dropout voltage (measure VBAT -
VST-BY1 when VST-BY1drops 0.1V)
IST-BY1 = 125mA
IST-BY1 = 5mA
2.6
1.2
V
V
Ilim1
Current limit
160
350
mA
ΔV
lead
VST-BY1 absolute differential
output voltage
force VST-BY2 Low; Measure
VST-BY1 - VST-BY2
2.5
V
ΔV
lag
force VST-BY1 Low; Measure
VST-BY1 - VST-BY2
0.25
V
SVR1
Supply voltage rejection ST-BY1
fo = 120-10kHz, VBAT = 14V
with 1.0Vp-p AC,
fo = 20-20kHz, VBAT = 14V
with 1.0Vp-p AC
50
45
dB
dB
1.5V/300mA VST-BY2
VST-BY2 Output voltage
IST-BY2 = 300mA
1.425
1.575
V
ΔV
line
Line regulation
7V
≤ V
BAT ≤ 18V
(measure
Δ V
ST-BY2 across VBAT
range)
50
mV
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



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