参数资料
型号: BD9207FPS-E2
厂商: Rohm Semiconductor
文件页数: 6/14页
文件大小: 0K
描述: IC LED DVR STEPDWN 1.5A TO252S-5
产品培训模块: LED Driver Solutions
标准包装: 1
拓扑: PWM,降压(降压)
输出数: 1
内部驱动器:
类型 - 主要: 背光
频率: 810kHz ~ 990kHz
电源电压: 8 V ~ 35 V
安装类型: 表面贴装
封装/外壳: TO-252-5,DPak(4 引线 + 接片),TO-252AD
供应商设备封装: TO-252-5
包装: 标准包装
工作温度: -20°C ~ 85°C
其它名称: BD9207FPS-E2DKR
BD9207FPS
Resistance R1
LED Current value is set below according to sense resistance R1.
ILED[A] = VINV[V]/R1[ ? ]
= 0.2V/R1[ ? ]
Moreover, DCDC Output voltage will be the value below.
VO[V] = VF ( LED Forward voltage )+ VINV[V]
= VF + 0.2V(typ)
● Recommended circuit example and notes of substrate layout
Technical Note
?
?
To prevent noise and low efficiency, please set up the capacitor and Schottky diode between VCC – GND as near as
possible to IC.
Please connect the resistance and output LC filter capacitor between INV – GND with same GND for the stability of
output voltage.
<Recommended parts example>
Coil L1 = 10 μ H
Diode D1
Capacitor C1 = 10 μ F(25V)
C2 = 4.7 μ F(50V)
: C6-K3LA ( mitsumi )
: RB050LA-30 ( ROHM )
: Ceramic capacitor GRM31CB31E106KA75L(murata)
: Ceramic capacitor GRM32EB31H475KA87L(murata)
Resistance
R1 = 0.43 ?
: MCR10EZPFR430 ( ROHM )
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
6/11
2009.07 - Rev.A
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