IR3084 查看數據表（PDF） - International Rectifier
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IR3084 Datasheet PDF : 45 Pages
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IR3084
PARAMETER
CURRENT SENSE INPUT
IIN Bias Current
IIN Preconditioning Pull-Down
Resistance
IIN Preconditioning RESET
Threshold
IIN Preconditioning SET
Threshold
VBIAS REGULATOR
Output Voltage
Current Limit
Over-Current Comparator
Input Offset Voltage
OCSET Bias Current
SOFT START AND DELAY
Start Delay (TD1)
Soft Start Time (TD2)
VID Sample Delay (TD3)
VRRDY Delay (TD4 + TD5)
OC Delay Time
SS/DEL to FB Input Offset
Voltage
SS/DEL Charge Current
SS/DEL Discharge Current
Charge/Discharge Current
Ratio
OC Discharge Current
Charge Voltage
OC/VRRDY Delay
Comparator Threshold
OC/VRRDY Delay
Comparator Threshold
Delay Comparator Hysteresis
VID Sample Delay
Comparator Threshold
SS/DEL Discharge
Comparator Threshold
ENABLE INPUT
Threshold Voltage
Threshold Voltage
Threshold Hysteresis
Input Resistance
Blanking Time
TEST CONDITION
V(SS/DEL) > 0.85V, V(EAOUT) > 0.5V
V(SS/DEL) < 0.35V
V(EAOUT)
V(SS/DEL)
−5mA ≤ I(VBIAS) ≤ 0mA
1V ≤ V(OCSET) ≤ 5V
RDRP = ∞
RDRP = ∞
Note 1
With FB = 0V, adjust V(SS/DEL) until
EAOUT drives high
Note 1
Relative to Charge Voltage,
SS/DEL rising
Relative to Charge Voltage,
SS/DEL falling
ENABLE rising
ENABLE falling
Noise Pulse < 250ns will not register
an ENABLE state change. Note 1
MIN
−2.0
5.6
0.20
0.35
6.6
−35
−10
−53.5
1.2
0.8
0.2
0.5
150
0.85
40
4
9.5
20
3.6
775
675
60
50
75
TYP
−0.2
12.5
0.35
0.60
6.9
−20
−1
−51
1.8
1.6
1.0
1.3
250
1.3
70
6.5
11.2
40
3.85
80
100
20
3.10
215
850
750
100
100
250
MAX UNIT
1.0
µA
19.4 KΩ
0.50
V
0.85
V
7.2
V
−6
mA
10
mV
−48.5 µA
2.6
ms
2.8
ms
2.5
ms
2.2
ms
350
µs
1.5
V
100
µA
9
µA
12.5 µA/µA
60
µA
4.1
V
mV
mV
mV
V
mV
925
mV
825
mV
140
mV
200
KΩ
400
ns
Page 4 of 45
07/20/2005
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