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参数资料
| 型号： | MAX6967ATE+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/29页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 恒定电流： | 是 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 10 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 270kHz ~ 450kHz |
| 电源电压： | 2.25 V ~ 3.6 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 125°C |
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MAX6966/MAX6967
10-Port Constant-Current LED Drivers and I/O
Expanders with PWM Intensity Control
Pin Description
QSOP
1
2
3–7,
9-13
8
PIN
TQFN
15
16
1–5,
7-11
6
NAME
SCLK
CS
P0-P9
GND
FUNCTION
Serial-Clock Input. On SCLK’s rising edge, data shifts into the internal shift register. On SCLK’s
falling edge, data is clocked out of DOUT. SCLK is active only while CS is low.
Chip-Select Input. Serial data is loaded into the shift register while CS is low. The most recent 16
bits of data latch on CS ’s rising edge.
I/O Ports. P0 to P9 can be configured as open-drain current-sink outputs rated at 20mA
maximum, or as CMOS-logic inputs, or as open-drain logic outputs. Loads should be connected
to a supply voltage no higher than 7V.
Ground
Serial-Data Output. The data into DIN is valid at DOUT 15.5 clock cycles later. Use this pin to
daisy-chain several devices or allow data readback. Output is push-pull.
14
12
DOUT/OSC
OSC Input. Apply a square-wave CMOS clock up to 100kHz as alternate PWM clock source.
The MAX6966 powers up with DOUT/OSC defaulting as DOUT output.
The MAX6967 powers up with DOUT/OSC defaulting as OSC input.
15
16
—
13
14
PAD
DIN
V+
Exposed
pad
Serial-Data Input. Data from DIN loads into the internal 16-bit shift register on SCLK’s rising
edge.
Positive Supply Voltage. Bypass V+ to GND with a 0.1μF ceramic capacitor.
Exposed Pad on Package Underside. Connect to GND.
Quick-Start Guide
This section describes how to configure a MAX6966 or
MAX6967 on power-up.
Software engineers can use this section as a plain-text
guide to the device’s initialization routine. Hardware
engineers can use this section to get a quick overview
of the device’s capabilities and feature tradeoffs:
1) Before power-up , all 10 I/O ports P0 to P9 are high
impedance. They may be connected to inputs up to
+7V or loads connected to independent rails up to
+7V. The SPI bus inputs (SCLK, CS , DIN) are not
overvoltage protected, and must not be driven from
a voltage higher than V+.
2) After power-up , all 10 I/O ports P0 to P9 remain
high impedance. They may be connected to inputs
up to +7V or loads connected to V+ or independent
rails up to +7V. The ports are not configured as logic
inputs even though the ports are high impedance.
The device is in shutdown mode, and draws mini-
mum supply current regardless of I/O ports connec-
tions.
3) Decide whether the DOUT/OSC pin will be used
as SPI data output or PWM clock input , and
choose the MAX6966 or MAX6967 accordingly. If
6
any ports are used as logic input, or if the applica-
tion needs read-after-write validation, then
DOUT/OSC needs to be configured as DOUT. Note
that both the MAX6966 and MAX6967 can configure
DOUT/OSC as either DOUT output or OSC clock
input; the only difference is the power-up default.
4) Allocate port functionality for the 10 I/O ports . All
ports have the same features, so allocate ports for
either software convenience or board-routing rea-
sons. Any port can be constant-current LED drivers
(static or PWM), an open-drain logic output, or a
logic input. If fewer than 10 ports are used as con-
stant-current drivers, see the Applications
Information section for details on how to optimize the
PWM phasing to minimize load supply-current mod-
ulation.
5) Decide how to implement LED intensity control .
The MAX6966/MAX6967 provide:
? Individual 8-bit PWM control per constant-current
output
? Individual 1-bit analog control (half/full) per
constant-current output
? Global 3-bit analog control, which applies to all
constant-current outputs
Maxim Integrated
相关PDF资料 |
PDF描述 |
|---|---|
| MAX6968AAE+ | IC LED DRIVER LINEAR 16-SSOP |
| MAX6970AUE+ | IC LED DRIVER LINEAR 16-TSSOP |
| MAX6971AUG+T | IC LED DRIVER LINEAR 24-TSSOP |
| MAX6974ATL+ | IC LED DRIVER LINEAR 40-TQFN |
| MAX6977AAE+ | IC LED DRIVER LINEAR 16-SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6967ATE+ | 功能描述:LED显示驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6967ATE+T | 功能描述:LED显示驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6967ATE-T | 功能描述:LED显示驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6968AAE | 功能描述:LED显示驱动器 8-Port 5.5V Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6968AAE+ | 功能描述:LED显示驱动器 8-Port 5.5V Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
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