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ADP5070 Arkusz danych(PDF) 4 Page - Analog Devices

Numer części ADP5070
Szczegółowy opis  Independent Positive and Negative Outputs
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ADP5070 Arkusz danych(HTML) 4 Page - Analog Devices

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Data Sheet
ADP5071
Rev. A | Page 3 of 27
SPECIFICATIONS
PVIN1 = PVIN2 = PVINSYS = 2.85 V to 15 V, VPOS = 15 V, VNEG = −15 V, fSW = 1200 kHz, TJ = −40°C to +125°C for minimum/maximum
specifications, and TA = 25°C for typical specifications, unless otherwise noted.
Table 2.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
INPUT SUPPLY VOLTAGE RANGE
VIN
2.85
15
V
PVIN1, PVIN2, PVINSYS
QUIESCENT CURRENT
Operating Quiescent Current
PVIN1, PVIN2, PVINSYS (Total)
IQ
3.5
4.0
mA
No switching, EN1 = EN2 = high,
PVIN1 = PVIN2 = PVINSYS = 5 V
Shutdown Current
ISHDN
5
10
µA
No switching, EN1 = EN2 = low,
PVIN1 = PVIN2 = PVINSYS = 5 V
UVLO
System UVLO Threshold
PVINSYS
Rising
VUVLO_RISING
2.8
2.85
V
Falling
VUVLO_FALLING
2.5
2.55
V
Hysteresis
VHYS_1
0.25
V
OSCILLATOR CIRCUIT
Switching Frequency
fSW
1.130
1.200
1.270
MHz
SYNC/FREQ = low
2.240
2.400
2.560
MHz
SYNC/FREQ = high (connect to
VREG)
SYNC/FREQ Input
Input Clock Range
fSYNC
1.000
2.600
MHz
Input Clock Minimum On Pulse Width
tSYNC_MIN_ON
100
ns
Input Clock Minimum Off Pulse Width
tSYNC_MIN_OFF
100
ns
Input Clock High Logic
VH (SYNC)
1.3
V
Input Clock Low Logic
VL (SYNC)
0.4
V
PRECISION ENABLING (EN1, EN2)
High Level Threshold
VTH_H
1.125
1.15
1.175
V
Low Level Threshold
VTH_L
1.025
1.05
1.075
V
Shutdown Mode
VTH_S
0.4
V
Internal circuitry disabled to
achieve ISHDN
Pull-Down Resistance
REN
1.48
INTERNAL REGULATOR
VREG Output Voltage
VREG
4.25
V
BOOST REGULATOR
Feedback Voltage
VFB1
0.8
V
Feedback Voltage Accuracy
−0.5
+0.5
%
TJ = 25°C
−1.5
+1.5
%
TJ = −40°C to +125°C
Feedback Bias Current
IFB1
0.1
µA
Overvoltage Protection Threshold
VOV1
0.86
V
At FB1 pin
Load Regulation
∆VFB1/ILOAD1
0.0003
%/mA
ILOAD11 = 5 mA to 150 mA
Line Regulation
∆VFB1/VPVIN1
0.002
%/V
VPVIN1 = 2.85 V to 14.5 V, ILOAD11 =
50 mA
Error Amplifier (EA) Transconductance
gM1
270
300
330
µA/V
Power FET On Resistance
RDS (ON) BOOST
175
Power FET Maximum Drain Source Voltage
VDS (MAX) BOOST
39
V
Input Disconnect Switch On Resistance
RDS (ON) INBK
210
Current-Limit Threshold
ILIM (BOOST)
2.0
2.2
2.4
A
Minimum On Time
50
ns
Minimum Off Time
25
ns


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