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参数资料
| 型号： | MAX6948BGWA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/28页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR PWM GPIO 25WLP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | 开路漏极，PWM，升压（升压） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 2MHz |
| 电源电压： | 2.7 V ~ 5 V |
| 输出电压： | 28V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 25-WFBGA，WLCSP |
| 供应商设备封装： | 25-WLP（2.09x2.09） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 105°C |
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MAX6948B
High-Efficiency PWM LED Driver with Boost
Converter and Five Constant-Current GPIO Ports
TIMING CHARACTERISTICS
( Typical Application Circuit , V+ = 2.7V to 5.0V, V DD = 1.7V to V+, T A = T MIN to T MAX , unless otherwise noted. Typical values are at
V+ = 3.3V, V DD = 2.5V, T A = +25 N C.) (Note 4)
PARAMETER
Internal Boost-Converter PWM
Clock Frequency
Internal GPIO PWM Clock
Frequency
SYMBOL
f INT_
BOOST
f INT_GPIO
CONDITIONS
MIN
98
24
TYP
125
31.25
MAX
145
38
UNITS
kHz
kHz
SCL Serial-Clock Frequency
Bus Free Time Between a STOP
and START Condition
Hold Time (Repeated) START
Condition
Repeated START Condition Setup
Time
STOP Condition Setup Time
f SCL
t BUF
t HD, STA
t SU, STA
t SU, STO
1.3
0.6
0.6
0.6
400
kHz
F s
F s
F s
F s
Data Hold Time
Data Setup Time
SCL Clock Low Period
SCL Clock High Period
t HD, DAT
t SU, DAT
t LOW
t HIGH
(Note 8)
180
1.3
0.7
0.9
F s
ns
F s
F s
Rise Time of Both SDA and SCL
Signals, Receiving
Fall Time of Both SDA and SCL
Signals, Receiving
Fall Time of SDA Transmitting
Pulse Width of Spike Suppressed
Serial Bus Timeout
Capacitive Load for Each Bus
Line
RST Pulse Width
t R
t F
t F, TX
t SP
t OUT
C b
t W
(Notes 7, 9)
(Notes 7, 9)
(Notes 7, 9)
(Notes 7, 10)
(Note 7)
20
1
20 +
0.1C b
20 +
0.1C b
20 +
0.1C b
50
30
300
300
250
50
400
ns
ns
ns
ns
ms
pF
F s
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
All parameters are tested at T A = +25 N C. Specifications over temperature are guaranteed by design.
The D I PORT_ specifies current matching between ports of a single part.
Current matching is defined as the percent error of any individual port from the average current of the maximum value
measured and the minimum value measured. It can be found using the equation D I PORT_ = 100 x (I MMAVG - I MEAS )/
I MMAVG where I MMAVG = (I MEASMAX + I MEASMIN )/2.
Guaranteed by design.
A master device must provide a hold time of at least 300ns for the SDA signal (referred to V IL of the SCL signal) to
bridge the undefined region of SCL’s falling edge.
Note
Note
9: I SINK P 6mA. C b = total capacitance of one bus line in pF. t R and t F are measured between 0.3 x V DD and 0.7 x V DD .
10: Input filters on the SDA, SCL, and AD0 inputs suppress noise spikes less than 50ns.
Maxim Integrated
5
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| MAX694C/D | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX694CPA | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX694CPA+ | 功能描述:监控电路 MPU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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