参数资料
| 型号： | ISL6425ERZ |
| 厂商： | Intersil |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC REG DUAL LNBP TTL-INP 32-QFN |
| 标准包装： | 60 |
| 应用： | 转换器，卫星信号接收机顶盒设计 |
| 输入电压： | 8 V ~ 14 V |
| 输出数： | 2 |
| 输出电压： | 13 V ~ 18 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN（5x5） |
| 包装： | 管件 |
ISL6425
Absolute Maximum Ratings
Supply Voltage, V CC . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V to 18.0V
Logic Input Voltage Range
(SDA, SCL, ENT, DSQIN, SEL18V) . . . . . . . . . . . . . . -0.5V to 7V
Output Current . . . . . . . . . . . . . . . . . . . . Externally/Internally Limited
Thermal Information
Thermal Resistance θ JA (°C/W) θ JC (°C/W)
QFN Package (Notes 1, 2) . . . . . . . . 32 4
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -40°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300°C
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 temperature” location is the center of the exposed metal pad on the package underside. See Tech Brief TB379.
Electrical Specifications
V CC = 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, I OUT = 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 2)
(Note 4)
-
1024
-
Cycles
OUTPUT VOLTAGE
Output Voltage (Note 3)
Line Regulation
Load Regulation
Dynamic Output Current Limiting
Dynamic Overload Protection Off Time
Dynamic Overload Protection On Time
V OUT
V OUT
V OUT
V OOU
DV OUT
DV OUT
I MAX
TOFF
TON
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, ISEL = L
DCL = L, ISEL = H
DCL = L, Output Shorted (Note 4)
12.74
13.72
17.64
18.62
-
-
-
425
775
-
-
13.0
14.0
18.0
19.0
4.0
4.0
50
-
-
900
20
13.26
14.28
18.36
19.38
40.0
60.0
80
550
950
-
-
V
V
V
V
mV
mV
mV
mA
mA
ms
ms
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 (Note 5)
ENT = H
20.0
550
40
5
22.0
680
50
8
24.0
900
60
14
kHz
mV
%
μ s
5
FN9176.1
February 8, 2005
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