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参数资料
| 型号： | ADP1876-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADP1876 |
| 标准包装： | 1 |
| 系列： | * |
Data Sheet
ADP1876
Parameter
DHx or DLx Driver R ON , Sourcing
Symbol
R ON_SOURCE
Test Conditions/Comments
Sourcing 2 A with a 100 ns pulse
Min
Typ
2
Max
Unit
Ω
Current 1
Sourcing 1 A with a 100 ns pulse,
V IN = 3 V
2.3
Ω
DHx or DLx Driver R ON , Tempco
DHx or DLx Driver R ON , Sinking
TC RON
R ON_SINK
V IN = 3 V or 12 V
Sinking 2 A with a 100 ns pulse
0.3
1.5
%/°C
Ω
Current 1
Sinking 1 A with a 100 ns pulse,
V IN = 3 V
2
Ω
DHx Maximum Duty Cycle
Minimum DHx On Time
Minimum DHx Off Time
Minimum DLx On Time
f OSC = 600 kHz
76
130
340
290
%
ns
ns
ns
COMP VOLTAGE RANGE
V COMP
0.85
2.3
V
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
T TMSD
155
20
°C
°C
OVERVOLTAGE AND POWER-GOOD
THRESHOLDS (FBx PINS)
FBx Overvoltage Threshold
V OV
V FB rising
0.67
0.7
0.73
V
FBx Overvoltage Hysteresis
40
mV
FBx Undervoltage Threshold
V UV
V FB rising
0.51
0.54
0.57
V
FBx Undervoltage Hysteresis
30
mV
FB1 TO TRK1 OFFSET VOLTAGE
TRK1 = 0.3 V to 0.55 V,
?120
+50
mV
offset = V FB ? V TRK
SOFT START (SSx Pins)
SSx Output Current
I SS
During start-up
4.6
6.5
8.4
μA
SSx Pull-Down Resistor
During a fault condition
1
kΩ
POWER GOOD (PGOODx Pins)
PGOODx Pull-up Resistor
PGOODx Delay
Overvoltage or Undervoltage
R PGOOD
Internal pull-up resistor to VCCO
This is the minimum duration
12.5
12
12
kΩ
μs
μs
Minimum Duration
required to trip the PGOODx signal
ILIM1, ILIM2 Threshold Voltage 1
ILIM1, ILIM2 Output Current
Current Sense Blanking Period
Relative to PGNDx
ILIMx = PGNDx
After DLx goes high, current limit is
?5
40
0
50
100
+5
60
mV
μA
ns
not sensed during this period
INTEGRATED RECTIFIER
At 20 mA forward current
16
Ω
(BOOST DIODE) RESISTANCE
INDEPENDENT LOW DROPOUT
LINEAR REGULATOR
VINLDO Voltage Range
V INLDO
Input range
2.7
5.5
V
VOUTLDO Voltage
V OUTLDO
V INLDO = 2.7 V to 5.5 V, I OUTLDO = 1 mA to
1.47
1.5
1.53
V
150 mA
VOUTLDO Maximum Load
V OUTLDO
V INLDO = 2.7 V to 5.5 V
150
mA
Quiescent Current
I INLDO
V INLDO = 2.7 V to 5.5 V, no load at
30
60
μA
output
Line Regulation
Load Regulation
ΔV OUTLDO
ΔV OUTLDO
I OUTLDO = 150 mA, V INLDO = 2.7 V to 5.5 V
V INLDO = 2.7 V to 5.5 V, I OUTLDO = 1 mA to
0.3
0.4
%
%
150 mA
Power Supply Rejection Ratio
PSRR
1 kHz, V INDLO = 2.7 V to 5.5 V,
70
dB
10 mA load
Rev. A | Page 5 of 24
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