参数资料
| 型号： | BD9853AFV-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 16-SSOP |
| 标准包装： | 1 |
| PWM 型： | 控制器 |
| 输出数： | 2 |
| 频率 - 最大： | 2MHz |
| 电源电压： | 4.5 V ~ 16 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 标准包装 |
| 产品目录页面： | 1373 (CN2011-ZH PDF) |
| 其它名称： | BD9853AFV-E2DKR |
Large Current External FET Controller Type Switching Regulators
Single/Dual-output High-frequency
Step-down Switching Regulator(Controller type)
BD9853AFV
No.09028EAT05
● Description
The BD9853AFV is a 2-ch synchronous DC/DC controller that can operate at a maximum switching frequency of 2MHz,
enabling the use of a smaller external coil than conventional lower-frequency switching regulators. This makes the
BD9853AFV a suitable choice for downsizing applications.
● Features
1) Synchronous Switching Regulator Controller 2channels
2) FET(Pch/Nch) Direct Drive
3) Adjustable Oscillator Frequency with External Resistor (Max. 2MHz)
4) Under Voltage Lockout Function (UVLO)
5) Thermal Shut Down Function (TSD)
6) Short Circuit Protection (SCP)
7) Independent ON/OFF Function in Each Channel with Soft Start Pin
8) SSOP-B16 Package
SSOPB16
● Applications
TVSTB, PC, Portable CD ? DVD,DVC etc.
● Absolute Maximum Ratings (Ta = 25 ℃ )
Parameter
Supply Voltage (VCC-GND)
VREGA-GND Voltage
VCC-VREGB Voltage
Power Dissipation
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Symbol
Vcc
VREGA
VREGB
Pd
Topr
Tjmax
Tstg
Limits
18
7
7
562(*1)
-40 to +85
+150
-55 to +150
Unit
V
V
V
mW
℃
℃
℃
*
Reduced by 4.49mW for each increase in Ta of 1 ℃ over 25 ℃ (When mounted on a board 70×70×1.6tmm grass-epoxy PCB)
● Recommended Operating Conditions
Parameter
Supply Voltage
Oscillator Frequency
Symbol
Vcc
fosc
Min.
4.5
100
Limits
Typ.
12
1000
Max.
16
2000
Unit
V
KHz
www.rohm.com
? 2009 ROHM Co., Ltd. All rights reserved.
1/16
2009.05 - Rev.A
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