16/22

Datasheet

Datasheet

BD60A00NUX

BD60A60NUX

© 2012 ROHM Co., Ltd. All rights reserved.

www.rohm.com

TSZ22111・15・001

TSZ02201-0G3G0C200320-1-2

27.SEP.2012 Rev.001

●About the order of a power supply injection at the time of power supply separation

Even if the IC power supply is 0V, leak channel is blocked as pull down resistor for power off is placed inside the

IC. The resistor intercepts leak channel from coil power supply. Additionally, there is no order for standing up and down of

coil and IC power supply.

・

At the time of starting

It doesn’t matter whether coil Power or IC Power becomes activated first.

・

At the time of power supply OFF

Please turn off after make EN terminal “L”. If power supply voltage of coil power becomes low, coil current increases

due to high boosting, which leads to over current limit. In order to avoid this state, before turning off a power supply

it is necessary to surely set EN to L.

●Input voltage 5V（BD60A00NUX）

The GND noise become big by impedance of PCB boards, so that wake up characteristics might become unstable.

To select input voltage to 5V(input voltage 4.61V over), we recommend under application to insert 4.7Ω

between input voltage line and Vin terminal

SW

VIN

CIN

4.7μF

RISET

24kΩ

COUT

2.2μF

25mA

VIN

2.7V to 5.5V

VOUT

FB

L1

10μH

ISET

GND

EN

PWM

RESET

PWM Input

4.7Ω

IC Power

EN

PWM

VOUT

Coil Power

Free