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参数资料
| 型号： | ISL6421AEVAL1Z |
| 厂商： | Intersil |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD 1 FOR ISL6421A |
| 标准包装： | 1 |
| 系列： | * |
ISL6421A
Absolute Maximum Ratings
Supply Voltage, V CC . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V to 18.0V
Logic Input Voltage Range (SDA, SCL, ENT) . . . . . . . . -0.5V to 7V
Output Current . . . . . . . . . . . . . . . . . . . . Externally/Internally Limited
Thermal Information
Thermal Resistance (Notes 1, 2) θ JA (°C/W) θ JC (°C/W)
QFN Package. . . . . . . . . . . . . . . . . . . . 35 6
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -40°C to 150°C
For recommended soldering conditions, see Tech Brief TB389.
NOTE: The device junction temperature should be kept below
150°C. Thermal shut-down circuitry turns off the device if junction
temperature exceeds +150°C typically.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. 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.
2. For θ JC , the “case temp” location is the center of the exposed metal pad on the package underside.
Electrical Specifications
VCC = 12V, T A = -20°C to +85°C, unless otherwise noted. Typical values are at T A = 25°C. EN = H, LLC = L,
ENT = L, DCL = L, DSQIN = L, Iout = 12mA, unless otherwise noted. See software description section for I 2 C
access to the system.
PARAMETER
Operating Supply Voltage Range
Standby Supply Current
Supply Current
SYMBOL
I IN
TEST CONDITIONS
EN = L
EN = LLC = VSEL = ENT = H, No Load
MIN
8
-
-
TYP
12
1.5
4.0
MAX
14
3.0
8.0
UNITS
V
mA
mA
UNDERVOLTAGE LOCKOUT
Start Threshold
Stop Threshold
Start to Stop Hysteresis
7.5
7.0
350
-
-
400
7.95
7.55
500
V
V
mV
SOFT-START
COMP Rise Time (Note 3)
(Note 5)
-
1024
-
Cycles
OUTPUT VOLTAGE
Output Voltage (Note 4)
Line Regulation
Load Regulation
Dynamic Output Current Limiting
Dynamic Overload Protection Off Time
Dynamic Overload Protection On Time
Output Backward Current
V OUT
V OUT
V OUT
V OOU
DV OUT
DV OUT
I MAX
T OFF
T ON
I OBK
VSEL = L, LLC = L
VSEL = L, LLC = H
VSEL = H, LLC = L
VSEL = H, LLC = H
V IN = 8V to 14V; V OUT = 13V
V IN = 8V to 14V; V OUT = 18V
I O = 12mA to 450mA
DCL = L
DCL = L, Output Shorted (Note 5)
EN = 0; V OBK = 24V
12.74
13.72
17.64
18.62
-
-
-
500
-
-
-
13.0
14.0
18.0
19.0
4.0
4.0
50
-
900
20
2.0
13.26
14.28
18.36
19.38
40.0
60.0
80
625
-
-
3.0
V
V
V
V
mV
mV
mV
mA
ms
ms
mA
22kHz TONE
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise or Fall Time
f tone
V tone
dc tone
T r , T f
ENT = H
ENT = H
ENT = H
ENT = H
20.0
500
40
5
22.0
680
50
8
24.0
900
60
14
kHz
mV
%
μ s
4
FN9167.3
March 9, 2006
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