News | September 19, 2008

ROHM Electronics Announces Complete Line Of PWM Output H-Bridge Driver ICs For DC Brush Motors Offering Selection Of Motor Speed Control Options

SAN DIEGO--(BUSINESS WIRE)--ROHM Electronics formally introduces its complete line of H-bridge driver ICs offering designers a simple upgrade path to pulse-width modulation (PWM) speed control using either analog or digital inputs. The new BD62xx Series provides both a TTL-compatible interface to an external MCU as well as an internal VREF-PWM conversion circuit allowing implementation of energy-saving PWM control from an analog voltage input. The product line is offered in three maximum operating voltage classes (7 V, 18 V and 36 V) with current ratings in each class of 0.5 A, 1.0 A and 2.0 A to cover applications ranging from portable electronics to automotive, appliance and medical devices.

BiCMOS topology is used to optimize performance and minimize power consumption. The P-channel / N- channel output configuration eliminates the need for an internal charge pump and external capacitors to operate the high-side switch. Internal shut-down circuitry reduces standby current to less than 1 µA – particularly important in portable designs.

Pin-compatible packaging between the three voltage classes at each current level speeds design implementation while allowing for power optimization in lower-voltage applications. Two-channel versions offered at each voltage level are packaged with symmetrical pin-outs to simplify design and manufacturing. In addition, the new family of ROHM PWM output H-bridge driver ICs are direct drop-in replacements for ROHM's legacy line of bipolar transistor output driver ICs.

All BD62xx H-bridge driver ICs include a complete suite of internal protection circuits including over-voltage protection (OVP), under-voltage lock-out (UVLO), over-current protection (OCP) and high-temperature shutdown (TSD). Overlap (shoot-through) protection to prevent high currents during motor reversal or breaking is also built in. In addition, the devices are designed to withstand 4 kV ESD.

All products in the series come in low-profile surface-mount packages with maximum height ranging from 1.15 mm (SSOP) to 2.2 mm (HRP7). All devices are specified for -40 to 85 °C operation.

For complete details, visit:

Price: US$ 0.80 (1-channel, 7 V) to 2.60 (2-channel, 36 V) (OEM quantities)

Availability: Now

Delivery: 10-12 weeks ARO

About ROHM

ROHM is the industry leader in system LSI, discrete components and module products, utilizing the latest in semiconductor technology. ROHM's proprietary production system, which includes some of the most advanced automation technology, is a major factor in keeping it at the forefront of the electronic component manufacturing industry. In addition to its development of electronic components, ROHM has also developed its own production system so that it can focus on specific aspects of customized product development. ROHM employs highly skilled engineers with expertise in all aspects of design, development and production. This allows ROHM the flexibility to take on a wide range of applications and projects and the capability to serve valuable clients in the automotive, telecommunication and computer sectors as well as consumer OEMs.

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