参数资料
型号: ISL97686IRTZ-T
厂商: Intersil
文件页数: 7/23页
文件大小: 0K
描述: IC LED DRVR BACKLIGHT 28TQFN
标准包装: 6,000
拓扑: 线性(LDO),PWM,升压(升压)
输出数: 4
内部驱动器:
类型 - 主要: 汽车,背光,通用型
频率: 200kHz ~ 1.2MHz
电源电压: 9 V ~ 32 V
输出电压: 75V
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
工作温度: -40°C ~ 105°C
ISL97686
Electrical Specifications All specifications below are characterized at T A = -40°C to +105°C; V IN = 12V, EN = 5V. Boldface limits apply
over the operating temperature range, -40°C to +105°C. (Continued)
MIN
MAX
PARAMETER
DESCRIPTION
CONDITION
(Note 9)
TYP
(Note 9)
UNIT
V GD
D MAX
D MIN
Gate Driver Output Voltage
Boost Maximum Duty Cycle
Boost Minimum Duty Cycle
C OUT_SW = 1000pF
f SW = 600kHz
f SW = 1.2MHz
92
10
26
V
%
%
f SW
Boost Switching Frequency
R OSC = 250k ?
R OSC = 83k ?
R OSC = 42k ?
180
540
1.08
200
600
1.2
220
660
1.32
kHz
kHz
MHz
EFF PEAK
Boost Peak Efficiency
90
%
REFERENCE
I MATCH
I ACC
Channel-to-Channel Current Matching
Absolute Current
Channels are in a single IC,
I LED : 100mA
R ISET1/2 = 28.7k ?
-2
-3
±1
2
3
%
%
FAULT DETECTION
V SC
V TEMP
V TEMP_ACC
V OVP_OUT
V OVP_IN
Channel Short Circuit Threshold
Over-Temperature Threshold
Over-Temperature Threshold Accuracy
Overvoltage Limit on OVP Pin
Overvoltage Limit on VIN Pin
7.2
1.18
8
150
5
1.22
35
8.8
1.24
V
°C
°C
V
V
DIGITAL I/O LOGIC LEVEL SPECIFICATIONS
V IL
Logic Input Low Voltage - EN_VSYNC, EN, CLK, SDA, SDO,
CSEL, CS
0.8
V
V IH
f CS
f CLK
t SETUP
t HOLD
Logic Input High Voltage - EN_VSYNC, EN, CLK, SDA, SDO,
CSEL, CS
Chip select frequency
Serial Clock Frequency
Setup Time
Hold Time
1.5
30
10
40
40
5.5
480
580
V
Hz
kHz
ns
ns
CURRENT SOURCES
V HEADROOM
Dominant Channel Current Source Headroom at CH Pin
I LED = 160mA
T A = +25°C
0.75
V
V ISET1,2
I LED_MAX
Voltage at ISET1 and 2 Pins
Maximum LED Current per Channel
1.18
160
1.21
1.24
V
mA
PWM GENERATOR
f PWM
Dimming Range
V PWM_SET
Generated PWM Frequency
PWM Dimming Duty Cycle Limits
PWM_SET Voltage
R PWM_SET = 333k ?
R PWM_SET = 3.3k ?
f PWM ≤ 20kHz
R PWM_SET = 3.3k ?
45
4.5
0.1
1.18
50
5
1.21
55
5.5
100
1.25
Hz
kHz
%
V
NOTES:
9. 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.
10. At maximum V IN of 32V, minimum V OUT is 35V. Minimum V OUT can be lower at lower V IN .
7
FN7953.0
April 23, 2012
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