参数资料
型号: ISL97683IRTZ-TK
厂商: Intersil
文件页数: 6/17页
文件大小: 0K
描述: IC LED DVR PWM CTRL 3CH 16TQFN
标准包装: 1
拓扑: PWM,升压(升压)
输出数: 3
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: 标准包装
工作温度: -40°C ~ 85°C
其它名称: ISL97683IRTZ-TKDKR
ISL97682, ISL97683, ISL97684
Electrical Specifications All specifications below are characterized at T A = -40°C to +85°C; V IN = 12V, EN = 5V, R SET = 20k Ω ,
unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
MIN
MAX
PARAMETER
D MIN
DESCRIPTION
Boost Minimum Duty Cycle
CONDITION
V FSW < 2.4V (F SW = 600kHz)
(Note 7)
TYP
(Note 7)
8
UNIT
%
V FSW > 2.4V
(F SW = 1.0MHz)
15
%
F SW
ILX_leakage
Boost Switching Frequency
LX Leakage Current
F SW < 2.4V
F SW > 2.4V
LX = 45V, EN = 0
500
0.9
600
1.0
650
1.1
10
kHz
MHz
μA
REFERENCE
I MATCH
Channel-to-Channel DC Current Matching
R SET = 20k Ω (I LED = 20mA for
ISL97683/4 and 40mA for
-2
+2
%
ISL97682)
R SET = 40k Ω (I LED = 10mA for
ISL97683/4 and 20mA for
-2.5
+2.5
%
ISL97682)
I ACC
Current Accuracy
I LED = 20mA (ISL97683/4)
I LED = 40mA (ISL97682)
-2
+2
%
FAULT DETECTION
V SC
V temp
V temp_acc
V OVPlo
OVP fault
Channel Short Circuit Threshold
Over-Temperature Threshold
Over-Temperature Threshold Accuracy
Overvoltage Limit on OVP Pin
OVP Short Detection Fault Level
3.8
1.18
4.4
150
5
1.22
70
4.9
1.24
V
°C
°C
V
mV
CURRENT SOURCES
V HEADROOM
Dominant Channel Current Source Headroom
at CH Pin
I LED = 20mA
500
mV
V RSET
I LED(max)
Voltage at RSET Pin
Maximum LED Current per Channel
ISL97682
1.2
1.22
100
1.24
V
mA
PWM GENERATOR
ISL97683
ISL97684
50
50
mA
mA
V IL
V IH
Guaranteed Range for PWM Input Low Voltage
Guaranteed Range for PWM Input High Voltage
1.5
0.8
V
V
F PWMI
DPWM ACC
PWMI Input Frequency Range
Direct PWM Dimming Output Maximum
Resolution
100
85
30,000
Hz
ns
t DPWM_ON_MIN
PWM ACC
PWM HYST
F PWM
Direct PWM Dimming Minimum On-Time
PWM Dimming with Adjustable Dimming
Frequency Output Resolution
PWMI Input Allowable Jitter Hysteresis
Generated PWM Dimming Frequency Range
Direct PWM Mode
250
-0.46
100
8
450
+0.46
30,000
ns
bit
LSB
Hz
V FPWM
Voltage at FPWM pin
R FPWM = 3.3k Ω
1.20
1.22
1.24
V
NOTES:
7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
8. At maximum V IN of 26V, minimum V OUT is 28V. Minimum V OUT can be lower at lower V IN .
6
FN7689.1
May 16, 2012
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