ADP3179 Просмотр технического описания (PDF) - Analog Devices
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ADP3179 Datasheet PDF : 16 Pages
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ADP3159/ADP3179–SPECIFICATIONS1
(VCC = 12 V, TA = 0؇C to 70؇C, unless otherwise noted.)
Parameter
Symbol Conditions
Min Typ Max Unit
FEEDBACK INPUT
Output Accuracy
1.3 V Output
1.65 V Output
2.05 V Output
Line Regulation
Crowbar Trip Point
Crowbar Reset Point
Crowbar Response Time
VID INPUTS
Input Low Voltage
Input High Voltage
Input Current
Pull-Up Resistance
Internal Pull-Up Voltage
VFB
∆VOUT
VCROWBAR
tCROWBAR
Figure 1
Figure 1
Figure 1
VCC = 10 V to 14 V
% of Nominal DAC Voltage
% of Nominal DAC Voltage
Overvoltage to DRVL Going High
VIL(VID)
VIH(VID)
IVID
RVID
VID(X) = 0 V
1.289 1.3
1.637 1.65
2.034 2.05
0.06
115 120
40
50
400
1.311 V
1.663 V
2.066 V
%
125 %
60 %
ns
0.6 V
2.0
V
185 250 µA
20
30
kΩ
5.0 5.4 5.7 V
OSCILLATOR
Off Time
CT Charge Current
ERROR AMPLIFIER
Output Resistance
Transconductance
Output Current
Maximum Output Voltage
Output Disable Threshold
–3 dB Bandwidth
CURRENT SENSE
Threshold Voltage
Input Bias Current
Response Time
TA = 25°C, CT = 200 pF
ICT
TA = 25°C, VOUT in Regulation
TA = 25°C, VOUT = 0 V
RO(ERR)
gm(ERR)
IO(ERR)
VCOMP(MAX)
VCOMP(OFF)
BWERR
FB– Forced to VOUT – 3%
FB– Forced to VOUT – 3%
COMP = Open
VCS(TH)
ICS+, ICS–
tCS
FB– Forced to VOUT – 3%
FB– ≤ 0.45 V
0.8 V ≤ COMP ≤ 1 V
CS+ = CS– = VOUT
CS+ – (CS–) > 87 mV to DRVH
Going Low
3.5 4.0 4.5 µs
130 150 170 µA
25
35 45 µA
1
mΩ
2.05 2.2 2.35 mmho
625
µA
3.0
V
600 750 900 mV
500
kHz
69
78 87 mV
35
45 54 mV
1
5
mV
0.5 5
µA
50
ns
OUTPUT DRIVERS
Output Resistance
Output Transition Time
LINEAR REGULATORS
Feedback Current
LR1 Feedback Voltage
LR2 Feedback Voltage
Driver Output Voltage
RO(DRV(X)) IL = 50 mA
6
tR, tF
CL = 3000 pF
80
ILRFB(X)
VLRFB(1)
0.3
ADP3159 Figure 2, VCC = 4.5 V to 12.6 V 2.44 2.5
ADP3179 Figure 2, VCC = 2-4.5 V to 12.6 V 0.97 1.0
VLRFB(2)
ADP3159 Figure 2, VCC = 4.5 V to 12.6 V 1.75 1.8
ADP3179 Figure 2, VCC = 2-4.5 V to 12.6 V 0.97 1.0
VLRDRV(X) VCC = 4.5 V, VLRFB(X) = 0 V
4.2
Ω
ns
1
µA
2.56 V
1.03 V
1.85 V
1.03 V
V
POWER GOOD COMPARATOR
Undervoltage Threshold
Undervoltage Hysteresis
Overvoltage Threshold
Overvoltage Reset Point
Output Voltage Low
Response Time
VPWRGD(UV)
VPWRGD(OV)
VOL(PWRGD)
% of Nominal DAC Voltage
% of Nominal DAC Voltage
% of Nominal DAC Voltage
% of Nominal DAC Voltage
IPWRGD(SINK) = 1 mA
75
80 85 %
5
%
115 120 125 %
40
50 60 %
250 500 mV
250
ns
SUPPLY
DC Supply Current2
UVLO Threshold Voltage
UVLO Hysteresis
ICC
VUVLO
7
6.75 7
0.8 1
9
mA
7.25 V
1.2 V
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC).
2Dynamic supply current is higher due to the gate charge being delivered to the external MOSFETs.
Specifications subject to change without notice.
–2–
REV. A
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