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ADP3170 Datasheet(PDF) 2 Page - Analog Devices

Part No. ADP3170
Description  VRM 8.5 Compatible Single Phase Core Controller
Download  16 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADP3170 Datasheet(HTML) 2 Page - Analog Devices

 
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REV. 0
–2–
ADP3170–SPECIFICATIONS1
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
FEEDBACK INPUT
Output Accuracy
VFB
1.05 V Output
Figure 1
1.039
1.05
1.061
V
1.5 V Output
Figure 1
1.485
1.5
1.515
V
1.825 V Output
Figure 1
1.807
1.825
1.843
V
Line Regulation
∆V
OUT
VCC = 10 V to 14 V
0.06
%
Input Bias Current
IFB
550
nA
Crowbar Trip Point
VCROWBAR
% of Nominal DAC Voltage
115
120
125
%
Crowbar Reset Point
% of Nominal DAC Voltage
40
50
60
%
Crowbar Response Time
tCROWBAR
Overvoltage to DRVL Going High
400
ns
REFERENCE
Output Voltage
VREF
2.937
3.0
3.048
V
Output Current
IREF
300
µA
VID INPUTS
Input Low Voltage
VIL(VID)
0.8
V
Input High Voltage
VIH(VID)
2.3
V
Input Current
IVID
VID(X) = 0 V
300
425
µA
Pull-up Resistance
RVID
16
k
Internal Pull-up Voltage
2.75
3.1
3.4
V
SHUTDOWN INPUT
Input Low Voltage
VIL(SD)
0.8
V
Input High Voltage
VIH(SD)
2.0
V
Input Current
ISD
1
µA
OSCILLATOR
Off Time
TA = 25
°C, CT = 200 pF
3.5
4.0
4.5
µs
CT Charge Current
ICT
TA = 25
°C, V
OUT in Regulation
130
150
170
µA
TA = 25°C, VOUT = 0 V
25
35
45
µA
ERROR AMPLIFIER
Output Resistance
RO(ERR)
1M
Transconductance
gm(ERR)
2.05
2.2
2.35
mmho
Output Current
IO(ERR)
FB = 0
625
µA
Maximum Output Voltage
VCOMP(MAX)
FB Forced to VOUT – 3%
3.0
V
Output Disable Threshold
VCOMP(OFF)
600
750
900
mV
–3 dB Bandwidth
BWERR
COMP = Open
500
kHz
CURRENT SENSE
Threshold Voltage
VCS(TH)
FB Forced to VOUT – 3%
69
78
87
mV
FB
≤ 0.45 V
35
45
54
mV
0.8 V
≤ COMP ≤ 1 V
1
5
mV
Input Bias Current
ICS+, ICS–
CS+ = CS– = VOUT
0.5
5
µA
Response Time
tCS
CS+ – (CS–)
> 87 mV
50
ns
to DRVH going low
OUTPUT DRIVERS
Output Resistance
RO(DRV[X])
IL = 50 mA
4.5
Output Transition Time
tR, tF
CL = 3000 pF
75
ns
LINEAR REGULATOR
Feedback Current
ILRFB
0.3
1
µA
LR Feedback Voltage
VLRFB
Figure 2, VCC = 4.5 V to 12.6 V
1.75
1.8
1.85
V
Driver Output Voltage
VLRDRV
VCC = 4.5 V, VLRFB(X) = 0 V
4.2
V
(VCC = 12 V, IREF = 150 A, TA = 0 C to 70 C, unless otherwise noted.)


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