Features
Battery Cell Controller, Advanced, 6 Channels, TPL, LQFP48.
Package
HLQFP48 LQFP64, plastic, low profile quad flat package; 64 terminals; 0.5 mm pitch; 10 mm x 10 mm x 1.4 mm body.
购买选项
MC34844AEP
正常供应
12NC: 935311717557
详细信息
MC34844AEPR2
正常供应
12NC: 935311717528
详细信息
工作特点
| 参数 | 值 |
|---|---|
Number of Channels | 10 |
Output Current on pin LEDn (Max) (mA) | 80 |
Supply Voltage [Min to Max] (V) | 7 to 28 |
Serial Communication | 1 x I²C |
| 参数 | 值 |
|---|---|
Topology | Constant current |
# of Addresses | 2 |
Operating Temperature (Min-Max) (℃) | -40 to 105 |
AEC-Q100 compliant | N |
环境
| 部件/12NC | 无铅 | 欧盟 RoHS | 无卤素 | RHF指标 | 二级互连 | REACH SVHC | 重量（mg） |
|---|---|---|---|---|---|---|---|
MC34844AEP(935311717557) | Yes | Yes Certificate Of Analysis (CoA) | Yes |  | e4 | REACH SVHC | 62.3 |
MC34844AEPR2(935311717528) | Yes | Yes Certificate Of Analysis (CoA) | Yes | | e4 | REACH SVHC | 62.3 |
质量
| 部件/12NC | 安全保障功能安全 | 湿度灵敏度等级(MSL) | 封装体峰值温度（PPT）（C°） | Maximum Time at Peak Temperatures (s) | |||
|---|---|---|---|---|---|---|---|
| 无铅焊接 | 无铅焊接 | 无铅焊接 | |||||
MC34844AEP (935311717557) | No | 3 | 260 | 40 | |||
MC34844AEPR2 (935311717528) | No | 3 | 260 | 40 | |||
配送
| 部件/12NC | 协调关税 (美国)免责声明 | 出口控制分类编号 (美国) |
|---|---|---|
MC34844AEP (935311717557) | 854239 | EAR99 |
MC34844AEPR2 (935311717528) | 854239 | EAR99 |
产品变更通知
| 部件/12NC | 发行日期 | 生效日期 | 产品更改通知 | 标题 |
|---|---|---|---|---|
MC34844AEPR2 (935311717528) | 2020-12-15 | 2020-12-16 | 202011011I | NXP Will Add a Sealed Date to the Product Label |
更多信息 MC34844
The MC34844/A is a high efficiency, LED driver for use in backlighting LCD displays from 10" to 27". Operating from supplies of 7 V to 28 V, the MC34844/A is capable of driving more than 150 LEDs in 10 parallel strings. Current in the 10 strings is matched to within ±2%, and can be programmed via the I²C/SM-bus interface.
The MC34844/A also includes a Pulse Width Modulation(PWM) generator for LED dimming. The LEDs can be dimmed to one of 256 levels, programmed through the I²C/SM-bus interface. Therefore dimming ratios up to 65,000:1 (256:1 PWM, 256:1 Current DAC) can be supported. External PWM inputs may also be used. Multiple devices can have synchronized PWM frequencies for reduced picture noise. Audible noise is reduced through support of frequencies up to 27 kHz (100 Hz to 25 kHz range for 34844 and 110 Hz to 27 kHz for 34844A).
The MC34844/A also supports temperature and optical compensation loops, as well as ambient backlight control.