参数资料
型号: MAX16831ATJ+
厂商: Maxim Integrated
文件页数: 4/19页
文件大小: 0K
描述: IC LED DRIVR HIGH BRIGHT 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
拓扑: PWM,降压(降压),升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 车载
类型 - 次要: 高亮度 LED(HBLED),RGB
频率: 125kHz ~ 600kHz
电源电压: 5.5 V ~ 76 V
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 管件
工作温度: -40°C ~ 125°C
产品目录页面: 1425 (CN2011-ZH PDF)
MAX16831
High-Voltage, High-Power LED Driver with
Analog and PWM Dimming Control
ELECTRICAL CHARACTERISTICS (continued)
(V CC = V UVEN = 14V, C REG1 = 1μF, C REG2 = 1μF, C CLMP = 0.1μF, R T = 25k ? , T A = T J = -40°C to +125°C, unless otherwise noted.
Typical specifications are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ERROR AMPLIFIER
FB Input Bias Current
-100
+100
nA
EAMP Output Sink Current
EAMP Output Source Current
EAMP Input Common-Mode
Voltage
V FB = 1.735V, V COMP = 1V
V FB = 0.735V, V COMP = 1V
3
2
0
7
7
3.0
mA
mA
V
EAMP Output Clamp Voltage
1.1
1.7
2.4
V
Voltage Gain
Unity-Gain Bandwidth
A V
GBW
R COMP = 100k ? to AGND
R COMP = 100k ? to AGND, C COMP = 100pF
to AGND
80
0.5
dB
MHz
OSCILLATOR, OSC SYNC, CLK, AND CLKOUT
RTSYNC Frequency Range
f SWMIN
f SWMAX
500
125
kHz
RTSYNC Oscillator Frequency
R T = 25k ?
R T = 100k ?
475
106
500
125
525
143
kHz
RTSYNC High-Level Voltage
RTSYNC Low-Level Voltage
CLKOUT High Level
CLKOUT Low Level
V SIHL
V SILL
I SINK = 0.8mA
I SOURCE = 1.6mA
2.8
2.8
0.4
0.4
V
V
V
V
CLKOUT Maximum Load
Capacitance
C CLK_CAP
f SW = 500kHz
500
pF
DIM SYNC, DIM RAMP, AND DIM PWM GEN
Internal Ramp Frequency
External Sync Frequency Range
f RAMP
f DIM
160
80
200
240
2000
Hz
Hz
External Sync Low-Level Voltage
External Sync High-Level Voltage
V LTH
V HTH
0.4
3.2
V
V
DIM Comparator Offset
V DIMOS
170
200
300
mV
DIGITAL SOFT-START
Soft-Start Duration
t SS
4.0
ms
OVERVOLTAGE COMPARATOR, LOAD OVERCURRENT COMPARATOR
OVP Overvoltage Comparator
Threshold
V OV
V OV rising
1.20
1.235
1.27
V
OVP Overvoltage Comparator
Hysteresis
V OV_HYST
63.5
mV
SLOPE COMPENSATION
Slope Compensation Peak
Voltage Per Cycle
Slope Compensation
4
Clock generated by R T
External clock applied to RTSYNC
120
15
mV
mV/μs
Maxim Integrated
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