参数资料
| 型号： | ISL6422BEVEZ |
| 厂商： | Intersil |
| 文件页数： | 6/18页 |
| 文件大小： | 0K |
| 描述： | IC VREG DUAL LNB W/I2C 38EPTSSOP |
| 标准包装： | 1,000 |
| 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： | 13.3 V ~ 18.3 V，14.3 V ~ 19.3 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP （0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 38-TSSOP 裸露焊盘 |
| 包装： | 管件 |
ISL6422B
Electrical Specifications
V CC = 12V, T A = -20°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C. EN1/2 = H,
VTOP1/2 = L, VBOT1/2 = L, ENT1/2 = L, DCL = L, MSEL1/2 = L, I OUT = 12mA, unless otherwise noted. See
software description section for I 2 C access to the system. (Continued)
PARAMETER
Dynamic Output Current Limiting
SYMBOL
I MAX
TEST CONDITIONS
DCL = 0, ISEL1H, ISEL2H = 0, ISEL1L,
MIN
270
TYP
305
MAX
345
UNITS
mA
(Note 9)
ISEL2L = 0, ISEL1R, ISEL2R = 0
DCL = 0, ISEL1H, ISEL2H = 0, ISEL1L,
350
388
435
mA
ISEL2L = 0, ISEL1R, ISEL2R = 1
DCL = 0, ISEL1H, ISEL2H = 0, ISEL1L,
515
570
630
mA
ISEL2L = 1, ISEL1R, ISEL2R = 1
DCL = 0, ISEL1H, ISEL2H = 1, ISEL1L,
635
705
775
mA
ISEL2L = 0, ISEL1R, ISEL2R = 1
DCL = 0, ISEL1/2H = 1, ISEL1/2L = 1,
800
890
980
mA
ISEL1/2R = 1
Dynamic Overload Protection Off Time
Dynamic Overload Protection On Time
Static Output Current Limiting
Cable Fault CABF Asserted High
t OFF
t ON
I MAX
I CAB
DCL = L, Output Shorted (Note 9)
DCL = 1 (Notes 6, 9)
EN1 and EN2 = 1;
-
-
-
2
900
51
990
10
-
-
-
20
ms
ms
mA
mA
TONE OSCILLATOR
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise or Fall Time
f tone
V tone
dc tone
t, t f
ENT1, ENT2 = H
ENT1, ENT2 = H
ENT1, ENT2 = H
ENT1, ENT2 = H
20.0
500
40
5
22.0
680
50
10
24.0
800
60
14
kHz
mV
%
μ s
TONE DECODER
Input Amplitude
Frequency Capture Range
Input Impedance
V TDIN
F TDIN
Z DET
200
17.5
-
-
-
8.6
1000
26.5
-
mV
kHz
k Ω
Detector Output Voltage
Detector Output Leakage
Tone Decoder Rx Threshold
Tone Decoder Tx Threshold
V TDOUT_L
I TDOUT_H
V RXth
V TXth
Tone Present, I LOAD = 3mA
Tone absent, V O = 6V
TXT1, TXT2 = L
TXT1, TXT2 = H
-
-
100
400
-
-
150
450
0.4
10
200
500
V
μ A
mV
mV
LINEAR REGULATOR
Drop-out Voltage
I OUT = 750mA (Note 6)
-
0.8
1.05
V
Output Backward Leakage Current
Output Backward Leakage Current
Output Backward Current Threshold
Output Backward Current Limit
Output Backward Voltage
Output Undervoltage
I BKLK
I BKLK
I BKTH
I BKLM
V OBK
EN1 and EN2 = 0; V OBK = 27V
EN1 and EN2 = 0; V OBK = 28V
EN1 and EN2 = 1; V OFAULT = 19V (Note 8)
EN1 and EN2 = 1; V OFAULT = 19V (Note 8)
EN1 and EN2 = 0
OUVF1, OUVF2 bit is asserted high,
-
-
-
-
-
-6
2.0
3.0
140
350
-
-
3.0
17.0
-
-
27
-2
mA
mA
mA
mA
V
%
(Asserted high during soft-start)
measured from the typ output set value
Output Overvoltage
OUVF1, OUVF2 bit is asserted high,
+2
-
+6
%
(Asserted high during soft-start)
6
measured from the typ output set value
FN6486.1
August 10, 2007
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