参数资料
型号: MAX6966ATE+T
厂商: Maxim Integrated
文件页数: 1/29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: 2,500
恒定电流:
拓扑: 开路漏极,PWM
输出数: 10
内部驱动器:
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: 带卷 (TR)
工作温度: -40°C ~ 125°C
EVALUATION KIT AVAILABLE
AVAILAB
LE
MAX6966/MAX6967
10-Port Constant-Current LED Drivers and I/O
Expanders with PWM Intensity Control
General Description
The MAX6966/MAX6967 serial-interfaced peripherals
provide microprocessors with 10 I/O ports rated to 7V.
Each port can be individually configured as either:
? A 20mA constant-current LED driver (static or pulse-
width modulated (PWM)).
? A 10mA constant-current LED driver (static or PWM).
? An open-drain logic output.
? An overvoltage-protected Schmitt logic input.
Analog and switching LED intensity control is built in:
? Individual 8-bit PWM control per output.
? Individual 1-bit analog control (half/full) per output.
? Global 3-bit analog control applies to all LED outputs.
PWM timing of the 10 port outputs may be optionally
staggered, consecutively phased in 45° increments.
This spreads the PWM load currents over time in eight
steps, helping to even out the power-supply current
and reduce the RMS current.
The MAX6966/MAX6967 can be configured to awake
from shutdown on receipt of a minimum 3ms pulse on
the CS input. This hardware-wakeup feature allows a
power-management controller or similar ASIC to enable
the MAX6966/MAX6967 with preconfigured LED intensi-
ty settings.
Shutdown can be programmed to wait up to 4s, fade
Features
? High-Speed 26MHz SPI-?/QSPI-?/MICROWIRE?-
Compatible Serial Interface
? 2.25V to 3.6V Operation
? I/O Ports Default to High-Z (LEDs Off) on Power-Up
? I/O Port Inputs Are Overvoltage Protected to 7V
? I/O Port Outputs Are 7V-Rated Open Drain
? I/O Port Outputs Are 10mA or 20mA Constant-
Current Static/PWM LED Drivers, or Open-Drain
Logic Outputs
? I/O Ports Support Hot Insertion
? Individual 8-Bit PWM Intensity Control for Each LED
? Any Output May Use or Not Use PWM Control
? Exit Shutdown (Warm Start) with Simple CS Pulse
? Auto Ramp-Down into Shutdown
? Auto Ramp-Up Out from Shutdown
? 0.8 μ A (typ), 2 μ A (max) Shutdown Current
Temperature Range
? Tiny 3mm x 3mm, 0.8mm High Thin QFN Package
? -40°C to +125°C Ordering Information
Ordering Information
Functional Diagrams
down the sink currents to zero for a period of 1/16s to
4s, and then shut down. A similar ramp-up from shut-
down can be programmed for 1/16s to 4s.
The MAX6966/MAX6967 support hot insertion. All port
pins remain high impedance in power-down (V+ = 0V)
with up to 8V asserted on them.
The DOUT/OSC pin can be configured as either the
serial interface data output or optional PWM clock
input. The MAX6966 powers up defaulting as DOUT
output. The MAX6967 defaults as OSC input.
For a similar part without the constant-current controls,
refer to the MAX7317 data sheet.
Applications
PART
MAX6966 ATE
MAX6966AEE
MAX6967 ATE
MAX6967AEE
TEMP
RANGE
-40 ° C to
+125 ° C
-40 ° C to
+125 ° C
-40 ° C to
+125 ° C
-40 ° C to
+125 ° C
PIN-
PACKAGE
16 Thin QFN
3mm x 3mm x
0.8mm
16 QSOP
16 Thin QFN
3mm x 3mm x
0.8mm
16 QSOP
TOP
MARK
ACF
ACG
PKG
CODE
T1633-4
T1633-4
LCD Backlights
Keypad Backlights
LED Status Indication
RGB LED Drivers
Portable Equipment
Cellular Phones
Functional Diagrams continued at end of data sheet.
Pin Configurations appear at end of data sheet.
SPI and QSPI are trademarks of Motorola, Inc.
UCSP is a trademark of Maxim Integrated Products, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim integrated .com.
19-3487; Rev 2; 4/05
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