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参数资料
| 型号： | ISL97672AIRZ-TK |
| 厂商： | Intersil |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR LOW DIMMING 20QFN |
| 标准包装： | 1,000 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 频率： | 200kHz ~ 1.5MHz |
| 电源电压： | 4.5 V ~ 26.5 V |
| 输出电压： | 45V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN（3x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
ISL97672A
Electrical Specifications All specifications are tested at T A = +25°C, V IN = 12V, EN = 5V, R SET = 20.5k Ω , unless otherwise noted. Boldface
limits apply over the operating junction temperature range, -40°C to +85°C.
MIN
MAX
PARAMETER
DESCRIPTION
CONDITION
(Note 8)
TYP
(Note 8)
UNIT
REGULATOR
VDC
IVDC_STBY
VLDO
LDO Output Voltage
Standby Current
VDC LDO Droop Voltage
V IN > 6V
EN = 0V
V IN > 5.5V, 20mA
4.55
4.8
20
5
5
200
V
μA
mV
EN Low
EN Hi
t ENLow
Guaranteed Range for EN Input Low Voltage
Guaranteed Range for EN Input High Voltage
EN Low Time Before Shut-down
1.8
30.5
0.5
V
V
ms
BOOST
SW ILimit
r DS(ON)
SS
Eff_peak
Boost FET Current Limit
Internal Boost Switch ON-Resistance
Boost Soft-start Time
Peak Efficiency
T A = +25°C
100% LED Duty Cycle
V IN = 12V, 72 LEDs, 20mA
each, L = 10μH with DCR
1.5
2.0
235
7
92.9
2.7
300
A
m ?
ms
%
101m ? , T A = +25°C
V IN = 12V, 60 LEDs, 20mA
each, L = 10μH with DCR
101m ? , T A = +25°C
90.8
%
Δ I OUT / Δ V IN
Line Regulation
0.1
%
D max
D min
Boost Maximum Duty Cycle
Boost Minimum Duty Cycle
F SW = 600kHz
F SW = 1.2MHz
F SW = 600kHz
F SW = 1.2MHz
90
81
9.5
17
%
%
%
%
f S
f S
I LX_leakage
Minimum Switching Frequency
Maximum Switching Frequency
LX Leakage Current
R FSW = 200k ?
R FSW = 33k ?
LX = 45V, EN = 0
175
1.312
200
1.50
235
1.69
10
kHz
MHz
μA
CURRENT SOURCES
I MATCH
Channel-to-Channel Current Matching
R SET =20.5k ?
(I OUT = 20mA)
±0.7
±1.0
%
I ACC
V headroom20
Current Accuracy
Dominant Channel Current Source Headroom
at IIN Pin measured with I LED = 20mA
I LED = 20mA
T A = +25°C
-1.5
500
(Note 9)
+1.5
%
mV
V headroom33
Dominant Channel Current Source Headroom
at IIN Pin measured with I LED = 33mA
I LED = 33mA
T A = +25°C
560
(Note 9)
710
860
(Note 9)
V RSET
I LEDmax
Voltage at RSET Pin
Maximum LED Current per Channel
R SET = 20.5k ?
V IN = 12V, V OUT = 45V,
F SW = 1.2MHz, T A = +25°C
1.2
1.22
50
1.24
V
mA
FAULT DETECTION
VSC
Temp_shtdwn
Temp_Hyst
VOVPlo
Channel Short Circuit Threshold
Over-Temperature Shutdown Threshold
Over-Temperature Shutdown Hysteresis
Overvoltage Limit on OVP Pin
PWM Dimming = 100%
7.5
1.199
8.2
150
23
1.24
V
°C
°C
V
5
FN7710.3
November 22, 2013
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| ISL97672BIRZ | 功能描述:IC LED DRVR BACKLIGHT 20QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
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