CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
4.
θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief TB379.
5. For
θ
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
V
DD
= 5V, T
A
= -40°C to +100°C, unless otherwise specified.
Boldface limits apply over the operating
temperature range, -40°C to +100°C.
SYMBOL
TEST CONDITIONS
MIN
(Note 7)
TYP
MAX
(Note 7) UNITS
PARAMETER
INPUT POWER SUPPLY
+5V Supply Current
I
VDD
I
3V3
I
VIN
POR
r
POR
f
VR_ON = 3.3V
VR_ON = 0V
-
-
-
-
-
3.85
3.1
-
-
-
4.35
4.1
3.6
1
1
1
4.5
-
mA
µA
µA
µA
V
V
+3.3V Supply Current
Battery Supply Current at VIN Pin
POR (Power-On Reset) Threshold
No load on CLK_EN# pin
VR_ON = 0, VIN = 25V
V
DD
rising
V
DD
falling
No load, close loop, active mode,
T
A
=-10°C to +100°C, VID = 0.75V to 1.5V
VID = 0.5V to 0.7375V
VID = 0.3V to 0.4875V
SYSTEM AND REFERENCES
System Accuracy
%Error
(V
cc_core
)
ISL6261ACRZ
-0.5
-8
-15
-0.8
-10
-18
1.45
1.188
VID = [0000000]
VID = [1100000]
VID = [1111111]
-
-
-
-
-
-
-
-
-
1.47
1.2
1.5
0.3
0.0
0.5
8
15
0.8
10
18
1.49
1.212
-
-
-
%
mV
mV
%
mV
mV
V
V
V
V
V
%Error
(V
cc_core
)
ISL6261AIRZ
No load, close loop, active mode,
VID = 0.75V to 1.5V
VID = 0.5V to 0.7375V
VID = 0.3V to 0.4875V
RBIAS Voltage
Boot Voltage
Maximum Output Voltage
Minimum Output Voltage
VID Off State
CHANNEL FREQUENCY
Nominal Channel Frequency
R
RBIAS
V
BOOT
V
CC_CORE
(max)
V
CC_CORE
(min)
R
RBIAS
= 147kΩ
f
SW
R
FSET
= 7kΩ, V
comp
= 2V
318
333
348
kHz
3
FN6354.3
November 5, 2009
ISL6261A
Electrical Specifications
V
DD
= 5V, T
A
= -40°C to +100°C, unless otherwise specified.
(Continued) Boldface limits apply over the
operating temperature range, -40°C to +100°C. (Continued)
SYMBOL
TEST CONDITIONS
MIN
(Note 7)
200
TYP
-
MAX
(Note 7) UNITS
500
kHz
PARAMETER
Adjustment Range
AMPLIFIERS
Droop Amplifier Offset
Error Amp DC Gain (Note 6)
Error Amp Gain-Bandwidth Product
(Note 6)
Error Amp Slew Rate (Note 6)
FB Input Current
SOFT-START CURRENT
Soft-start Current
Soft Geyserville Current
Soft Deeper Sleep Entry Current
Soft Deeper Sleep Exit Current
Soft Deeper Sleep Exit Current
POWER MONITOR
PMON Output Voltage Range
-0.3
A
V0
GBW
SR
I
IN(FB)
I
SS
I
GV
I
C4
I
C4EA
I
C4EB
V
PMON
V
PMONMAX
I
SC_PMON
I
SK_PMON
V
SEN
= 1V, V
DROOP
- V
O
= 25mV
V
SEN
= 1V, V
DROOP
- V
O
= 25mV
|SOFT - REF|>100mV
DPRSLPVR = 3.3V
DPRSLPVR = 3.3V
DPRSLPVR = 0V
C
L
= 20pF
C
L
= 20pF
-
-
-
-
-
90
18
5.0
10
0.3
-
-
-
150
mV
dB
MHz
V/µs
nA
-47
±180
-46
36
175
-42
±205
-41
41
200
-37
±230
-36
46
225
µA
µA
µA
µA
µA
V
SEN
= 1.2V, V
DROOP
- V
O
= 40mV
V
SEN
= 1V, V
DROOP
- V
O
= 10mV
1.638
0.308
2.8
2
2
1.680
0.350
3.0
-
-
1.722
0.392
-
-
-
PMON
/130Ω
-
V
V
V
mA
mA
A
Ω
PMON Maximum Voltage
PMON Sourcing Current
PMON Sinking Current
Maximum Current Sinking Capability
PMON Impedance
PMON/250Ω
PMON/180Ω
Z
PMON
When PMON current is within its
ourcing/sinking current range (Note 6)
-
7
GATE DRIVER DRIVING CAPABILITY (Note 6)
UGATE Source Resistance
UGATE Source Current
UGATE Sink Resistance
UGATE Sink Current
LGATE Source Resistance
LGATE Source Current
LGATE Sink Resistance
LGATE Sink Current
UGATE to PHASE Resistance
R
SRC(UGATE)
I
SRC(UGATE)
R
SNK(UGATE)
I
SNK(UGATE)
R
SRC(LGATE)
I
SRC(LGATE)
R
SNK(LGATE)
I
SNK(LGATE)
R
P(UGATE)
t
PDHU
ISL6261ACRZ
t
PDHU
ISL6261AIRZ
LGATE Turn-on Propagation Delay
t
PDHL
ISL6261ACRZ
t
PDHL
ISL6261AIRZ
BOOTSTRAP DIODE
Forward Voltage
V
DDP
= 5V, forward bias current = 2mA
0.43
0.58
0.72
V
T
A
= -10°C to +100°C,
PV
CC
= 5V, output unloaded
PV
CC
= 5V, output unloaded
T
A
= -10°C to +100°C,
PV
CC
= 5V, output unloaded
PV
CC
= 5V, output unloaded
500mA source current
V
UGATE_PHASE
= 2.5V
500mA sink current
V
UGATE_PHASE
= 2.5V
500mA source current
V
LGATE
= 2.5V
500mA sink current
V
LGATE
= 2.5V
-
-
-
-
-
-
-
-
-
1
2
1
2
1
2
0.5
4
1.1
1.5
-
1.5
-
1.5
-
0.9
-
-
Ω
A
Ω
A
Ω
A
Ω
A
kΩ
GATE DRIVER SWITCHING TIMING (Refer to “Gate Driver Timing Diagram” on page 6)
UGATE Turn-on Propagation Delay
20
18
7
5
30
30
15
15
44
44
30
30
ns
ns
ns
ns
4
FN6354.3
November 5, 2009
ISL6261A
Electrical Specifications
V
DD
= 5V, T
A
= -40°C to +100°C, unless otherwise specified.
(Continued) Boldface limits apply over the
operating temperature range, -40°C to +100°C. (Continued)
SYMBOL
V
R
= 16V
V
OL
I
OH
tpgd
O
VH
O
VHS
I
PGOOD
= 4mA
P
GOOD
= 3.3V
CLK_EN# low to PGOOD high
V
O
rising above setpoint > 1ms
V
O
rising above setpoint > 0.5µs
I(R
BIAS
) = 10µA
DROOP rising above OCSET > 120µs
UV
f
V
O
below set point for > 1ms
TEST CONDITIONS
MIN
(Note 7)
-
TYP
-
MAX
(Note 7) UNITS
1
μA
PARAMETER
Leakage
POWER GOOD and PROTECTION MONITOR
PGOOD Low Voltage
PGOOD Leakage Current
PGOOD Delay
Overvoltage Threshold
Severe Overvoltage Threshold
OCSET Reference Current
OC Threshold Offset
Undervoltage Threshold
(VDIFF-SOFT)
LOGIC THRESHOLDS
VR_ON and DPRSLPVR Input Low
VR_ON and DPRSLPVR Input High
Leakage Current on VR_ON
V
IL(3.3V)
V
IH(3.3V)
I
IL
I
IH
Leakage Current on DPRSLPVR
I
IL_DPRSLP
I
IH_DPRSLP
DAC(VID0-VID6), PSI# and
DPRSTP# Input Low
DAC(VID0-VID6), PSI# and
DPRSTP# Input High
Leakage Current of DAC(VID0-VID6)
and DPRSTP#
THERMAL MONITOR
NTC Source Current
Over-temperature Threshold
VR_TT# Low Output Resistance
CLK_EN# OUTPUT LEVELS
CLK_EN# High Output Voltage
CLK_EN# Low Output Voltage
NOTES:
6. Limits established by characterization and are not production tested.
7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
中风发生时，一切都是以秒来计算的。延误治疗可能导致大脑重大损伤。伦敦大学医学院的一位博士Alistair McEwan已经获得行为医学研究所(Action Medical Research)的同意，为急救人员开发一种无线诊断系统来减少时间延误。感谢抗血栓药物，一些病人在病情发作的三个小时之内可以完全恢复。但出血也会导致中风。医生在治疗之前需要确定发病原因，因为不适当的服用抗血栓药物会加重损害。...[详细]
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