参数资料
型号: MAX8879ETG+T
厂商: Maxim Integrated
文件页数: 3/16页
文件大小: 0K
描述: IC LED DRVR WT/RGB BCKLGT 24TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
恒定电流:
拓扑: 切换式电容器(充电泵)
输出数: 11
内部驱动器:
类型 - 主要: 背光
类型 - 次要: RGB,白色 LED
频率: 1MHz
电源电压: 2.7 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-TQFN-EP(4x4)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
Charge Pump for Backlight/Flash/RGB LEDs
with Safety Timer
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V PIN = 3.6V, V DD = 1.8V, V GND = V PGND = 0V, temperature derating disabled, T A = -40°C to +85°C, typical values are at T A =
+25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage Mode Transition Hysteresis
150
mV
M_, S_, F_ Leakage in Shutdown
All LEDs off, FSH =
V DD
T A = +25°C
T A = +85°C
0.01
0.1
1
μA
OUT Pulldown Resistance in Shutdown
Maximum OUT Current
All LEDs off, FSH = V DD
V IN ≥ 3.2V, V OUT = 3.9V
1x mode (V IN - V OUT ) / I OUT
610
5
0.5
2.5
k Ω
mA
Open-Loop OUT Resistance
1.5x mode (1.5 x V IN - V OUT ) / I OUT
1.5
3.5
Ω
Switching Frequency
2x mode (2 x V IN - V OUT ) / I OUT
SDA = 111xxx00
2.0
1
2 9
4.1
MHz
S1, S2, S3 (RGB) Full-Scale Ramp Time
Logic-Input High Voltage
Logic-Input Low Voltage
SDA = 111xxx01
SDA = 111xxx10
SDA = 111xxx11
V DD = 1.6V to 5.5V
V DD = 1.6V to 5.5V
0.7 x V DD
2 18
2 19
2 20
0.3 x V DD
μs
V
V
Logic-Input Current
SDA Output Low Voltage
V IL = 0V or V IH =
5.5V
I SDA = 3mA
T A = +25°C
T A = +85°C
0.01
0.1
0.03
1
0.4
μA
V
I 2 C Clock Frequency
400
kHz
Bus-Free Time Between START and STOP
t BUF
1.3
μs
Hold Time Repeated START Condition
SCK Low Period
SCK High Period
Setup Time Repeated START Condition
SDA Hold Time
SDA Setup Time
Setup Time for STOP Condition
Thermal Shutdown
Thermal-Shutdown Hysteresis
t HD_STA
t LOW
t HIGH
t SU_STA
t HD_DAT
t SU_DAT
t SU_STO
0.6
1.3
0.6
0.6
0
100
0.6
0.1
0.2
0.2
0.1
-0.01
50
0.1
+160
20
μs
μs
μs
μs
μs
ns
μs
°C
°C
Note 1: All devices are 100% production tested at T A = +25°C. Limits over the operating temperature range are guaranteed
by design.
Note 2: LED current specification includes both accuracy and matching tolerance.
Note 3: Dropout voltage is defined as the M2 or F3 to GND voltage at which current into M2 or F3 drops 10% from the value at 0.2V.
All other current regulators are tested functionally by the accuracy test and guaranteed for low dropout by design.
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