参数资料
型号: ISL97636IRZ-T
厂商: Intersil
文件页数: 5/18页
文件大小: 0K
描述: IC LED DRIVR WHITE BCKLGT 24-QFN
标准包装: 6,000
拓扑: 线性(LDO),PWM,升压(升压)
输出数: 8
内部驱动器:
类型 - 主要: 车载,背光
类型 - 次要: 白色 LED
频率: 1MHz ~ 1.3MHz
电源电压: 6 V ~ 24 V
输出电压: 34.5V
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘
供应商设备封装: 24-QFN 裸露焊盘(4x4)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
ISL97636
Electrical Specifications
All specifications below are tested at T A = -40°C to +85°C; V IN = 12V, EN = 5V, R SET = 36.6k Ω ; 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. (Continued)
PARAMETER
Eff_peak
DESCRIPTION
Peak Efficiency
CONDITION
VIN = 18V, 72 LEDs,
MIN
TYP
91
MAX
UNIT
%
20mA each, L = 8.2μH
with DCR 106m Ω,
T A = +25°C
VIN = 12V, 72 LEDs,
20mA each, L = 8.2μH
with DCR 106m Ω,
T A = +25°C
VIN = 6V, 72 LEDs,
20mA each, L = 8.2μH
with DCR 106m Ω,
T A = +25°C
90
86
%
%
Δ I OUT / Δ V IN
Dmax
Dmin
Line Regulation
Boost Maximum Duty Cycle
Boost Minimum Duty Cycle
82
0.1
7
%
%
%
f S
ILX_leakage
Switching Frequency
LX Leakage Current
VLX = 36V, EN = 0
1.0
1.2
1.3
10
MHz
μA
REFERENCE
Imatch
Channel-to-Channel Current Matching
I OUT = 30mA
-3.5
±1
+3.5
%
I ACC
Current Accuracy
±3
%
FAULT DETECTION
VSC
Short Circuit Threshold
PWM Dimming = 100%
7.8
8
8.8
V
Vtemp_acc
Over-Temperature Threshold Accuracy
5
° C
VOVPlo
OVPhys
OVPfault
Overvoltage Limit on OVP Pin
OVP Hysteresis
OVP Short Detection Fault Level
1.17
1.2
20
300
1.23
V
mV
mV
CURRENT SOURCES
V headroom
Dominant Channel Current Source
Headroom at IIN Pin
I LED = 20mA
T A = +25 ° C
100
mV
V RSET
ILEDmax
Voltage at RSET Pin
Maximum LED Current Per Channel
R SET = 36.6k Ω
R SET = 20.9k Ω
680
700
35
720
mV
mA
FAULT PIN
Ifault
Fault Pull-down Current
V IN = 12V
10
18
30
μA
Vfault
FAULT Clamp Voltage with Respect to V IN V IN = 12, V IN - Vfault
7.5
V
IlxStartup
LX Start-up Current
VDC = 5.2V
1
2.7
7
mA
5
FN6570.0
May 9, 2008
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ISL97644IRZ 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: