参数资料
| 型号： | ISL6422ERZ-T |
| 厂商： | Intersil |
| 文件页数： | 6/19页 |
| 文件大小： | 0K |
| 描述： | IC VREG DUAL LNB W/I2C 40-QFN |
| 标准包装： | 4,000 |
| 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： | 40-VFQFN 裸露焊盘 |
| 供应商设备封装： | 40-QFN（6x6） |
| 包装： | 带卷 (TR) |
ISL6422
Electrical Specifications
V CC = 12V, T A = -20°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C. EN1 = EN2 = H,
VTOP1 = VTOP2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, I OUT = 12mA, unless otherwise
noted. See “ISL6422 Software Description” on page 12 for I 2 C access to the system. (Continued)
PARAMETER
Dynamic Output Current Limiting
SYMBOL
I MAX
TEST CONDITIONS
DCL = 0, ISEL1H and ISEL2H = 0,
MIN
270
TYP
305
MAX
345
UNITS
mA
(Note 8)
ISEL1L and ISEL2L = 0,
ISEL1R and ISEL2R = 0
DCL = 0, ISEL1H and ISEL2H = 0,
350
388
422
mA
ISEL1L and ISEL2L = 0,
ISEL1R and ISEL2R = 1
DCL = 0, ISEL1H and ISEL2H = 0,
515
570
630
mA
ISEL1L and ISEL2L = 1,
ISEL1R and ISEL2R = 1
DCL = 0, ISEL1H and ISEL2H = 1,
635
705
775
mA
ISEL1L and ISEL2L = 0,
ISEL1R and ISEL2R = 1
DCL = 0, ISEL1H and ISEL2H = 1,
800
890
980
mA
ISEL1L and ISEL2L = 1,
ISEL1R and ISEL2R = 1
Dynamic Overload Protection Off Time
Dynamic Overload Protection On Time
Static Output Current Limiting
t OFF
t ON
I MAX
DCL = L, Output Shorted (Note 8)
DCL = 1 (Note 8)
900
20
990
ms
ms
mA
Cable Fault CABF Asserted High
I CAB
EN1 and EN2 = 1;
2
10
20
mA
TONE OSCILLATOR
Tone Frequency
Tone Amplitude
Tone Duty Cycle
Tone Rise or Fall Time
f tone
V tone
dc tone
t r , t f
ENT1 and ENT2 = H
ENT1 and ENT2 = H, I OUT = 5mA
ENT1 and ENT2 = H
ENT1 and 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
Detector Output Voltage
Detector Output Leakage
Vtdin
Ftdin
Z DET
V TDOUT_L
I TDOUT_H
Tone Present, I LOAD = 3mA
Tone absent, V O = 6V
200
17.5
8.6
1000
26.5
0.4
10
mV
kHz
k Ω
V
μ A
Tone Decoder Rx Threshold
Tone Decoder Tx Threshold
V RXth
V TXth
TXT1 and TXT2 = L
TXT1 and TXT2 = H
100
400
150
450
200
500
mV
mV
LINEAR REGULATOR
Drop-out Voltage
I OUT = 750mA
0.8
1.0
V
Output Backward Leakage Current
Output Backward Leakage Current
I OBK
I OBK
EN1 and EN2 = 0; V OBK = 27V
EN1 and EN2 = 0; V OBK = 28V
2.0
15.0
3.0
17.0
mA
mA
Output Backward Current Threshold
Output Backward Voltage
I OBKTH
I OBK
EN1 and EN2 = 1; V OFAULT = 19V (Note 7)
EN1 and EN2 = 0
125
27
mA
V
Output Undervoltage
OUVF1, OUVF2 bit is asserted high,
-6
2
%
(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
FN9190.2
August 10, 2007
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