ADP3211 查看數據表（PDF） - ON Semiconductor
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ADP3211 Datasheet PDF : 32 Pages
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ADP3211, ADP3211A
ELECTRICAL CHARACTERISTICS (VCC = PVCC = 5.0 V, FBRTN = GND = PGND = 0 V, H = 5.0 V, L = 0 V, VVID = VDAC = 1.2 V,
TA = −10°C to 100°C, unless otherwise noted. (Note 1) Current entering a pin (sunk by the device) has a positive sign.
Parameter
Symbol
Conditions
Min Typ Max Units
PULSE WIDTH MODULATOR − Clock Oscillator
RT Voltage
VRT
RT = 243 kW, VVID = 1.2 V
See also VRT(VVID) formula
PWM Clock Frequency
Range (Note 2)
fCLK
Operation of interest
1.08
1.2
1.35
V
0.3
3.0
MHz
RAMP GENERATOR
RAMP Voltage
RAMP Current Range (Note 2)
VRAMP
IRAMP
EN = H, IRAMP = 60 mA
EN = L
EN = H
EN = L, RAMP = 19 V
0.9
1.0
1.1
V
VIN
1.0
−0.5
100
mA
+0.5
PWM COMPARATOR
PWM Comparator Offset
(Note 2)
VOSRPM
−3.0
+3.0
mV
RPM COMPARATOR
RPM Current
RPM Comparator Offset
(Note 2)
IRPM
VOSRPM
VVID = 1.2 V, RT = 243 kW
See also IRPM(RT) formula
VCOMP − (1 + VRPM)
−6.0
mA
−3.0
+3.0
mV
SWITCH AMPLIFIER
SW Input Resistance
RSW
ZERO CURRENT SWITCHING COMPARATOR
SW ZCS Threshold
VZCSSW
Masked Off−Time
tOFFMSKD
Measured from SW to PGND
DCM mode, DPRSLP = 3.3 V
Measured from DRVH neg edge to DRVH
pos edge at max frequency of operation
1.3
kW
−4.0
mV
700
ns
SYSTEM I/O BUFFERS − EN and VID[6:0] INPUTS
Input Voltage
VEN,VID[6:0]
Refers to driving signal level
Logic low, Isink = 1 mA
Logic high, Isource = −5 mA
Input Current
IEN,VID[6:0]
VEN,VID[6:0] = 0 V
0.2 V < VEN,VID[6:0] ≤ VCC
VID Delay Time (Note 2)
Any VID edge to 10% of FB change
V
0.3
1.0
10
nA
1.0
mA
200
ns
GPU INPUT
Input Voltage
Input Current
VGPU
IGPU
Refers to driving signal level
Logic low, Isink = 1 mA
Logic high, Isource = −5 mA
GPU = L or GPU = H (static)
0.8 V < EN < 1.6 V (during transition)
V
0.3
4.0
10
nA
70
mA
CLKEN OUTPUT
Output Low Voltage
Output High, Leakage Current
SUPPLY
Supply Voltage Range
Supply Current
VCLKEN
ICLKEN
VCC
Logic low, ICLKEN = 4 mA
Logic high, VCLKEN = VCC
EN = H
EN = L
30
300
mV
3.0
mA
4.5
5.5
V
6.0
10
mA
60
200
mA
VCC OK Threshold
VCCOK
VCC is rising
4.4
4.5
V
VCC UVLO Threshold
VCCUVLO
VCC is falling
4.0
4.15
V
VCC Hysteresis (Note 2)
150
mV
1. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
2. Guaranteed by design or bench characterization, not production tested.
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