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参数资料
| 型号： | BD6085GUL-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 18/29页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER BKLT 35VCSP50L3 |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | 线性（LDO），切换式电容器（充电泵） |
| 输出数： | 12 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 720kHz ~ 1.08MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 输出电压： | 5.1V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 35-VCSP |
| 供应商设备封装： | 36VCSP50L3 |
| 包装： | 带卷 (TR) |
| 工作温度： | -35°C ~ 85°C |
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BD6085GUL
Datasheet
● Explanation for operate
1. Reset
There are two kinds of reset, software reset and hardware reset.
(1) Software reset
? All the registers are initialized more than making a register (SFTRST) setup "1".
? The register of software resetting is an automatic return (Auto Return 0).
(2) Hardware reset
? It shifts to hardware reset by changing RESETB pin “H” → “L”.
? The condition of all the registers under hardware reset pin is returned to the initial value,
and it stops accepting all address.
? It’s possible to release from a state of hardware reset by changing RESETB pin “L” → “H”.
? RESETB pin has delay circuit. It doesn’t recognize as hardware reset in “L” period under 5 μ s.
(3) Reset Sequence
? When hardware reset was done during software reset, software reset is canceled when
hardware reset is canceled. (Because the initial value of software reset is “0”)
2. Thermal shutdown
The blocks which thermal shutdown function is effective in the following.
Charge pump
LED Driver
LDO1, LDO2, LDO3, LDO4
A thermal shutdown function works in about 190 ℃ .
Detection temperature has a hysteresis, and detection release temperature is about 170 ℃ .
(Design reference value)
3. Charge Pump for LED driver
Charge Pump block is designed for the power supply for LED driver.
It has the x1.0/x1.33/x1.5/x2.0 mode. it changes to the most suitable mode automatically by Vf of LED and the battery
voltage. It has the mode of x1.33 and it can be higher efficiency than traditional.
Start
Charge Pump circuit operates when any LED turns ON.
Soft start
When the start of the Charge Pump circuit is done, it has the soft start function to prevent a rush current.
VBAT
VIO
RESETB
T VBATON
T VIOON=min 0.1ms
T VBATOFF
T VIOOFF=min 1ms
T RSTB=min 0.1ms
T RST=min 0ms
EN (*1)
T SOFT
VOUT
LED Current
(*1) An EN signal in the upper figure means the following;
“EN is high” = Any LED turns ON
But if Ta >TSD, EN Signal doesn’t become effective.
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
18/26
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
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| BD6088GUL-E2 | 功能描述:IC LED DRIVER BKLT 36VCSP50L3 RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
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