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MAX16814
Integrated, 4-Channel, High-Brightness LED
Driver with High-Voltage DC-DC Controller
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V EN = 12V, R RT = 12.25k I , R SETI = 15k I , C VCC = 1 F F, V CC = V DRV , NDRV = COMP = OUT_ = unconnected, V RSDT = V DIM
= V CC , V OVP = V CS = V LEDGND = V PGND = V SGND = 0V, T A = T J = -40 N C to +125 N C for MAX16814A_ _, T A = -40 N C to +85 N C for
MAX16814BE_ _, and T A = T J = 0 N C to +85 N C for MAX16814U_ _ and MAX16814BU_ _, unless otherwise noted. Typical values are at
T A = +25 N C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
f SW = 200kHz to 600kHz, MAX16814A_ _
and MAX16814U_ _
85
89
93
Maximum Duty Cycle
Oscillator Frequency Accuracy
f SW = 600kHz to 2000kHz, MAX16814A_ _
and MAX16814U_ _
f SW = 200kHz to 600kHz, MAX16814B_ _
f SW = 600kHz to 2000kHz, MAX16814B _ _ _
f SW = 200kHz to 2MHz, MAX16814A_ _
and MAX16814U_ _
82
90
86
-7.5
86
94
90
90
98
94
+7.5
%
%
Sync Rising Threshold
Minimum Sync Frequency
PWM COMPARATOR
PWM Comparator Leading-Edge
Blanking Time
f SW = 200kHz to 2MHz, MAX16814B_ _ _
-7
4
1.1f SW
60
+7
V
Hz
ns
PWM to NDRV Propagation Delay
Including leading-edge blanking time
90
ns
SLOPE COMPENSATION
Peak Slope Compensation
Current Ramp Magnitude
Current ramp added to the CS input,
MAX16814A_ _ only
Current ramp added to the CS input,
MAX16814U_ _ and MAX16814B_ _ _
44
45
49
50
54
55
μA x f SW
CS LIMIT COMPARATOR
Current-Limit Threshold
CS Limit Comparator to NDRV
Propagation Delay
(Note 3)
10mV overdrive, excluding leading-edge
blanking time
396
416
10
437
mV
ns
ERROR AMPLIFIER
OUT_ Regulation Voltage
1
V
Transconductance
No-Load Gain
g M
(Note 4)
340
600
75
880
μS
dB
COMP Sink Current
COMP Source Current
V OUT_ = 5V, V COMP = 2.5V
V OUT_ = 0V, V COMP = 2.5V
160
160
375
375
800
800
μA
μA
MOSFET DRIVER
NDRV On-Resistance
Peak Sink Current
Peak Source Current
Rise Time
Fall Time
I SINK = 100mA (nMOS)
I SOURCE = 100mA (pMOS)
V NDRV = 5V
V NDRV = 0V
C LOAD = 1nF
C LOAD = 1nF
0.9
1.1
2.0
2.0
6
6
ω
A
A
ns
ns
LED CURRENT SOURCES
OUT_ Current-Sink Range
Channel-to-Channel Matching
V OUT_ = V REF
I OUT_ = 100mA
I OUT_ = 100mA, all channels on
20
150
±2
± 1.5
mA
%
Maxim Integrated
3
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相关代理商/技术参数
MAX16814BEUP+
功能描述:LED照明驱动器 4Ch HB Drvr w/High-V DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16814BEUP+T
功能描述:LED照明驱动器 4Ch HB Drvr w/High-V DC/DC Controller RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MAX16814BUTP+
制造商:Maxim Integrated Products 功能描述:INTEGRATED, 4-CHANNEL, HIGH-BRIGHTNESS LED DRIVER WITH HIGH- - Rail/Tube
MAX16814BUTP+T
制造商:Maxim Integrated Products 功能描述:INTEGRATED, 4-CHANNEL, HIGH-BRIGHTNESS LED DRIVER WITH HIGH- - Tape and Reel
MAX16814BUUP+
制造商:Maxim Integrated Products 功能描述:LED DRIVER - Rail/Tube
MAX16814BUUP+T
制造商:Maxim Integrated Products 功能描述:LED DRIVER - Tape and Reel
MAX16814CATP+
制造商:Maxim Integrated Products 功能描述:INTEGRATED, 4-CHANNEL, HIGH-BRIGHTNESS LED DRIVER WITH HIGH- - Rail/Tube
MAX16814CAUP+
制造商:Maxim Integrated Products 功能描述:INTEGRATED, 4-CHANNEL, HIGH-BRIGHTNESS LED DRIVER WITH HIGH- - Rail/Tube