参数资料
型号: ISL97682IRTZ
厂商: Intersil
文件页数: 5/17页
文件大小: 0K
描述: IC LED DVR PWM CTRL 2CH 16TQFN
标准包装: 100
拓扑: PWM,升压(升压)
输出数: 2
内部驱动器:
类型 - 主要: 背光
频率: 500kHz ~ 650kHz,900kHz ~ 1.1MHz
电源电压: 4 V ~ 26.5 V
输出电压: 45V
安装类型: 表面贴装
封装/外壳: 16-WFQFN 裸露焊盘
供应商设备封装: 16-TQFN(3x3)
包装: 管件
工作温度: -40°C ~ 85°C
ISL97682, ISL97683, ISL97684
Absolute Maximum Ratings
VIN, EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 28V
VDC, PWMI, FPWM/DirectPWM, FSW, RSET, COMP, OVP . . . -0.3V to 5.5V
CH1 to CH4, LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 45V
PGND, AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +0.3V
Above voltage ratings are all with respect to AGND pin
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Thermal Information
Thermal Resistance (Typical) θ JA (°C/W) θ JC (°C/W)
16 LD TQFN (Notes 4, 5) . . . . . . . . . . . . . . . 51 4.6
Thermal Characterization (Typical) PSI JT (°C/W)
16 Ld TQFN (Note 6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.11
Maximum Continuous Junction Temperature . . . . . . . . . . . . . . . . .+125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
Electrical Specifications All specifications below are characterized at T A = -40°C to +85°C; V IN = 12V, EN = 5V, R SET = 20k Ω ,
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.
6. PSI JT is the PSI junction-to-top thermal characterization parameter. If the package top temperature can be measured with this rating then the die
junction temperature can be estimated more accurately than the θ JC and θ JC thermal resistance ratings.
5.
unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C.
MIN
MAX
PARAMETER
DESCRIPTION
CONDITION
(Note 7)
TYP
(Note 7)
UNIT
GENERAL
V IN
Backlight Supply Voltage, (Note 8)
T A = +25°C
4.0
26.5
V
I VIN
IVIN_STBY
V OUT
V UVLO
V UVLO_HYS
VIN Active Current
VIN Shutdown Current
Output Voltage
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
EN = 3.3V
EN = 0V, T A = 25°C
4.0V < V IN ≤ 26.5V
2.2
5
100
5
45
2.5
mA
μ A
V
V
mV
LINEAR REGULATOR
V DC
V LDO
LDO Output Voltage
VDC LDO Dropout Voltage
V IN > 6V
V IN = 5V, I VDC = 20mA
4.6
4.8
30
5
200
V
mV
EN Low
EN Hi
t EN(Low)
Guaranteed Range for EN Input Low Voltage
Guaranteed Range for EN Input High Voltage
EN low time before shut-down
1.5
29.5
0.5
V
V
ms
BOOST SWITCHING REGULATOR
SS
Soft-start
100% LED Duty Cycle
7
ms
SW ILimit
r DS(ON)
Eff_peak
Boost FET Current Limit
Internal Boost Switch ON-Resistance
Peak Efficiency
V IN = 24V, 48 LEDs, 30mA
each, L = 10μH with DCR
1.4
1.8
500
90.1
2.3
A
m Ω
%
≤ 100m Ω, T A = +25°C
V IN = 12V, 48 LEDs, 30mA
each, L = 10μH with DCR ≤
100m Ω, T A = +25°C
87
%
D MAX
Boost Maximum Duty Cycle
V FSW < 2.4V (F SW = 600kHz)
V FSW > 2.4V
(F SW =1.0MHz)
92
85
%
%
5
FN7689.1
May 16, 2012
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ISL97682IRTZ-T IC LED DVR PWM CTRL 2CH 16TQFN
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