参数资料
型号: BD8157EFV-E2
厂商: Rohm Semiconductor
文件页数: 2/20页
文件大小: 0K
描述: IC POWER SUP 1-CH HTSSOP-B20
标准包装: 2,500
应用: TFT-LCD 面板:伽玛缓冲器,VCOM 驱动器
电流 - 电源: 1.2mA
电源电压: 2.1 V ~ 4 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-VSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-HTSSOP-B
包装: 带卷 (TR)
BD8151EFV, BD8157EFV
Technical Note
● Electrical Characteristics BD8151EFV (Unless otherwise specified, Ta = 25 ℃ ; Vcc = 3.3V, ENB = 3.3V)
Parameter Symbol
[Triangular waveform oscillator]
Limit
Min. Typ. Max.
Unit Conditions
Oscillating frequency 1
Oscillating frequency 2
FOSC1
FOSC2
540
1.08
600
1.20
660
1.32
kHz
MHz
FCLK = 0 V
FCLK = Vcc
[Overcurrent protection circuit]
Overcurrent limit
ISW
2
A
[Soft start circuit]
SS source current
ISO
6
10
14
μA
Vss = 0.5 V
[Under-voltage lockout protection circuit]
Off threshold voltage
On threshold voltage
VUTOFF
VUTON
2.1
2.0
2.2
2.1
2.3
2.2
V
V
[Error amp]
Input bias current
IB
0.1
0.5
μA
Feedback voltage
VFB
1.232
1.245
1.258
V
Buffer
[Output]
On resistance
Max. duty ratio
RON
DMAX
72
200
80
300
88
m ?
%
*Isw = 1 A
RL = 100 ?
[ENB]
ENB on voltage
ENB off voltage
VON
VOFF
Vcc × 0.7
Vcc
0
Vcc × 0.3
V
V
[Overall]
Standby current
Average consumption current
ISTB
ICC
0
1.2
10
2.4
μ A
mA
VENB = 0 V
no switching
[Amp]
Input bias current
Drive current 1
Drive current 2
Max. output current
Min. output current
Ibo
IOO1
IOO2
Voho
Vohl
? 1
50
150
VS-0.16
0
70
200
VS-0.1
0.1
1
140
400
0.16
μ A
mA
mA
V
V
IN += 4.5 V
OUT1 to OUT4
VCOM
Io = ? 5 mA, IN += VS
Io = 5 mA, IN += 0 V
? This product is not designed for protection against radio active rays.
* Design guarantee (No total shipment inspection is made.)
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
2/17
2009.07 - Rev.B
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