L5955 Просмотр технического описания (PDF) - STMicroelectronics
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L5955 Datasheet PDF : 17 Pages
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L5955
Electrical specification
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
ΔVload Load regulation
0.5mA ≤ IST-BY2 ≤ 300mA
VDROPOUT
Dropout voltage (measure VBAT -
VST-BY2 when VST-BY2 drops0.1V)
IST-BY2 = 300mA
IST-BY2 = 5mA
Ilim2 Current limit
360
fo = 120-10kHz, VBAT = 14V
50
with 1.0Vp-p AC,
SVR3 Supply voltage rejection ST-BY2
fo = 20-20kHz, VBAT = 14V
45
with 1.0Vp-p AC
100 mV
4.1
V
3
V
700 mA
dB
dB
10V/40mA REG1 output
VREG1 Output voltage
IREG1 = 40mA
ΔVline Line regulation
11.4V ≤ VBAT≤ 18V (measure Δ
VREG1 across VBAT range)
ΔVload Load regulation
5mA ≤ IREG1 ≤ 40mA
VDROPOUT
Dropout voltage (measure VBAT -
VREG1 when VREG1 drops 0.1V)
IREG1 = 40mA
IREG1 = 5mA
Ilim1 Current limit
SVR
Supply voltage rejection
(guaranteed by characterization-
test at 1kHz with 50dB Limit)
9.50 10 10.5
V
55
mV
55
mV
1200 mV
300 mV
60
200 mA
50
dB
8.5V/200mA REG2 output
VREG2 Output voltage
IREG2 = 200mA
8.3
ΔVline Line regulation
9.6V ≤ VBAT ≤ 18V (measure Δ VREG2
across VBAT range)
ΔVload Load regulation
5mA ≤ IREG2 ≤ 200mA
VDROPOUT
Dropout voltage (measure VBAT -
VREG2 when VREG2 drops 0.1V)
IREG2 = 200mA
IREG2 = 5mA
Ilim2 Current limit
225
Ripple rejection (guaranteed By
SVR characterization-test at 1kHz with
50
50dB limit)
8.5 8.7
V
50
mV
50
mV
1100 mV
600 mV
525 mA
dB
3.3V/850mA REG3 output
VREG3 Output voltage
IREG3 = 850mA
ΔVline Line regulation
7V ≤ VBAT ≤ 18V (Measure Δ VREG2
Across VBAT range)
ΔVload Load regulation
5mA ≤ IREG3 ≤ 850mA
VDROPOUT
Dropout voltage (measure VBAT -
VREG3 when VREG3 drops 0.1V)
IREG3 = 850mA
IREG3 = 5mA
3.14
3.46
V
40
mV
100 mV
3.46
V
2.86
V
7/17
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