L5955 データシートの表示（PDF） - STMicroelectronics
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L5955 Datasheet PDF : 17 Pages
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Electrical specification
L5955
Table 4.
Symbol
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)
Parameter
Test condition
Min. Typ. Max. Unit
VOL LVW output voltage
IOL = 100µA
0
0.2
V
HSDS, REGS, VST-BY1, VST-BY2
TS
Thermal shutdown for HSDS,
REGS, VST-BY1, VST-BY2
min. load.
Increase Tamb until HSDS,
170
°C
REGS, VST-BY1,2 Disabled
HSDS, REGS, VST-BY1, VST-BY2
TS HYS
Thermal shutdown hysteresis for min. load.
HSDS, REGS, VST-BY1, VST-BY2 Decrease Tamb until HSDS,
10
°C
REGS, VST-BY1,2 Disabled
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
ΔVline Line regulation
IST-BY1 = 125mA
7V ≤ VBAT ≤ 18V
(Measure ΔVreg1 across VBAT
range)
ΔVload Load regulation
0.5mA ≤ IST-BY1 ≤ 125mA
(Measure ΔVreg1 across VBAT
range)
Δ Quiescent current
Iq1
(measure ΔIBAT)
IST-BY1 = 2mA, VBAT = 14V,
IST-BY1 = 125mA, VBAT = 14V
VDROPOUT
Dropout voltage (measure VBAT -
VST-BY1 when VST-BY1drops 0.1V)
IST-BY1 = 125mA
IST-BY1 = 5mA
Ilim1 Current limit
ΔVlead
ΔVlag
VST-BY1 absolute differential
output voltage
force VST-BY2 Low; Measure
VST-BY1 - VST-BY2
force VST-BY1 Low; Measure
VST-BY1 - VST-BY2
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
3.14
160
50
45
3.46
V
10
mV
50
mV
150 μA
10
mA
2.6
V
1.2
V
350 mA
2.5
V
0.25
V
dB
dB
1.5V/300mA VST-BY2
VST-BY2 Output voltage
ΔVline Line regulation
IST-BY2 = 300mA
7V ≤ VBAT ≤ 18V
(measure Δ VST-BY2 across VBAT
range)
1.425
1.575 V
50
mV
6/17
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