IR3084U Datasheet, PDF (6/47 Pages) International Rectifier – XPHASETM VR10, VR11 & OPTERON/ATHLON64 CONTROL IC

IR3084U
PARAMETER
TEST CONDITION
MIN TYP MAX UNIT
VRRDY OUTPUT
Output Voltage
Leakage Current
I(VRRDY) = 4mA
V(VRRDY) = 5.5V
150
300
mV
0
10
μA
ENABLE INPUT
VR10/11 Threshold Voltage ENABLE rising
800
850
900
mV
VR10/11 Threshold Voltage ENABLE falling
VR10/11 Threshold Hysteresis
700
750
800
mV
70
100 130
mV
Opteron/Athlon64 Threshold
Voltage
Opteron/Athlon64 Threshold
Voltage
Opteron/Athlon64 Threshold
Hysteresis
Input Resistance
Blanking Time
ENABLE rising
ENABLE falling
Noise Pulse < 250ns will not register
an ENABLE state change. Note 1
1.11 1.23 1.35
V
1.06 1.17 1.29
V
35
60
85
mV
50
100 200
KΩ
75
250 400
ns
OSCILLATOR
Switching Frequency
Peak Voltage (4.8V typical,
measured as % of VBIAS)
Valley Voltage (0.9V typical,
measured as % of VBIAS)
ROSC = 24KΩ
450 500 550 kHz
70
71
74
%
10
13
15
%
INTL_MD OUTPUT
Source Current
Sink Current
V(INTL_MD)=2V, VR10 or VR11 mode 100 200 300
µA
V(INTL_MD)=2V, Opteron mode
250 750 1500 µA
Max Voltage
Min Voltage
Pin Floating, V(VBIAS)−V(INTL_MD)
Pin Floating, LGND referenced
50
170 350
mV
400
900
mV
VOSNS− FLOAT DETECT
Detect Voltage
Detect Delay
V(VOSNS−) with respect to V(LGND),
Verify V(VRRDY) and V(EAOUT) are
1.2
2
2.6
V
low.
V(VOSNS-) 0V to 2.6V step, measure
time when V(VRRDY) falls. Note 1
200
350
600
ns
DRIVER BIAS REGULATOR
REGSET Bias Current
Input Offset Voltage
Short Circuit Current
Dropout Voltage
1.5V < V(REGSET) < VCC – 1.5V
1.5V < V(REGSET) < VCC – 1.5V,
100μA < I(REGDRV) < 10mA
V(REGDRV) = 0V,
1.5V < V(REGSET) < VCC – 1.5V,
Note 1
I(REGDRV) = 10mA, Note 1
−112 −99
−85
μA
−12
0
12
mV
10
20
50
mA
0.4 0.87 1.33
V
Page 6 of 47
9/14/2005