ADP3421 Просмотр технического описания (PDF) - Analog Devices
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ADP3421 Datasheet PDF : 12 Pages
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ADP3421–SPECIFICATIONS1 (0؇C Յ TA Յ 100؇C, VCC = 3.3 V, VSD = VCC, VULVO = 2.0 V, VCORE = VDAC, ROUT = 100
k⍀, COUT = 10 pF, CSSC = 1.8 nF, CSSL = 1.3 nF, CLTB = 1.5 nF, unless otherwise noted.)
Parameter
Symbol
Conditions
Min
Typ
SUPPLY-UVLO-POWER GOOD
Supply Current
VCC UVLO Threshold
VCC UVLO Hysteresis
Battery UVLO Threshold
Battery UVLO Hysteresis
Shutdown Input Threshold
Core Power Good Threshold
PWRGD Output Voltage
ICC(ON)
ICC(UVLO)
VCCH
ICCH
VCCL
VCCHYS
VUVLOTH
IUVLO
VSDTH
VCOREH(UP)1
VCOREH(DN)2
VCOREL(UP)1
VCOREL(DN)2
VPWRGD3
CORE CONVERTER SOFT-START TIMER
Timing Charge Current
Discharge Current
Enable Threshold
Termination Threshold
ISSC(UP)
ISSC(DN)
VSSCEN4
VSSCTH
VID DAC
VID Input Threshold
VID Input Pull-Up Current
Nominal Output Voltage
Output Voltage Accuracy
Output Voltage Settling Time
VVID0..4
IVID0..4
VDAC
∆VDAC/VDAC
tDACS5
CORE COMPARATOR
Input Offset Voltage
Input Bias Current
Hysteresis Current
VCOREOS
IREG
IRAMP
Hysteresis Setting Reference Voltage VVHYS
Output Voltage
VOUTH
Propagation Delay Time6
VOUTL
tCOREPD7
Rise and Fall Time6
tCORER8,
tCOREF8
VUVLO = 0.2 V
VSD = 0 V, 3.0 V ≤ VCC ≤ 3.6 V
VUVLO = 1.275 V
VUVLO = 1.175 V
3.0 V < VCC < 5.0 V
0.925 V < VDAC < 2.000 V
VCORE = VDAC
VCORE = 0.8 VDAC
VUVLO = 0.2 V
VSSC = 0 V
VSSC = 1.7 V, VUVLO = 1.1 V
See VID Code Table I
VREG = 1.3 V
VREG = VRAMP = 1.3 V
VCORE = VRAMP = 1.3 V
VCS– = 1.30 V, VCS+ = 1.28 V
VREG = 1.28 V
RVHYS Open
RVHYS = 170 kΩ
RVHYS = 17 kΩ
VREG = 1.32 V
RVHYS Open
RVHYS = 170 kΩ
RVHYS = 17 kΩ
VCC = 3.0 V
VCC = 3.6 V
TA = 25°C
0°C ≤ TA ≤ 100°C
7
2.7
20
1.175
–0.3
0.6
0.8
1.10 × VDAC
1.08 × VDAC
0.90 × VDAC
0.88 × VDAC
0.95 × VCC
0
0
1.225
1.0
–0.6
–1.0
0.3
1.0
150
1.53
1.70
0.8
10
0.925
–0.85
–3
–2
–2
–7
–10
–82
–97
–2
7
10
82
97
1.53
1.70
2.5
0
7
Max
Unit
15
mA
350
µA
10
µA
2.9
V
V
mV
1.275
V
+0.3
µA
1.4
µA
0.7 × VCC V
1.12 × VDAC V
1.10 × VDAC V
0.92 × VDAC V
0.90 × VDAC V
VCC
V
0.8
V
0.4
V
–1.4
µA
mA
400
mV
1.87
V
0.7 × VCC V
40
µA
2.000
V
0.85
%
35
µs
+3
mV
+2
µA
+2
µA
–13
µA
–113
µA
+2
µA
13
µA
113
µA
1.87
V
3.0
V
0.4
V
20
ns
30
ns
10
ns
–2–
REV. A
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