5/40

BD906xx-C series

TSZ02201-0T1T0AL00130-1-2

© 2014 ROHM Co., Ltd. All rights reserved.

www.rohm.com

TSZ22111・15・001

15.Sep.2015 Rev.005

Parameter

Symbol

Rating

Unit

Input Power Supply Voltage

-0.3 to +42

V

EN / SYNC Pin Voltage

V

RT, VC, FB Pin Voltage

-0.3 to +7

V

Power Dissipation

(Note1)

HRP7

(Note2)

Pd

6.98

W

HTSOP-J8

(Note3)

3.10

Storage Temperature Range

Tstg

-55 to +150

°C

Maximum Junction Temperature

Tjmax

150

°C

(Note 1) Do not however exceed Pd.

(Note 2) Reduce by 55.8 mW / °C, (Above 25°C),

(JESD51 -5 / -7 standard FR4 114.3 mm × 76.2 mm × 1.60 mmt 4-layer Top copper foil: ROHM recommended footprint + wiring to measure /

2,3 inner layers and Copper foil area on the reverse side of PCB

74.2 mm × 74.2 mm, copper (top & reverse side / inner layers)

70 µm / 35 µm.

Thermal via : pitch 1.2 mm, diameter Φ0.30 mm )

(Note 3) Reduce by 24.8 mW / °C, (Above 25°C),

(JESD51 -5 / -7 standard FR4 114.3 mm × 76.2 mm × 1.60 mmt 4-layer Top copper foil: ROHM recommended footprint + wiring to measure /

2,3 inner layers and Copper foil area on the reverse side of PCB

74.2 mm × 74.2 mm, copper (top & reverse side / inner layers)

70 µm / 35 µm.

Thermal via : pitch 1.2 mm, diameter Φ0.30 mm )

Caution: Exceeding the absolute maximum rating for supply voltage, operating temperature or other parameters can result in damages to or destruction of the

chip. In this event it also becomes impossible to determine the cause of the damage (e.g. short circuit, open circuit, etc). Therefore, if any special mode

is being considered with values expected to exceed the absolute maximum ratings, implementing physical safety measures, such as adding fuses,

should be considered.

Recommended Operating Conditions

Parameter

Symbol

Limit

Unit

Min

Max

Operating Power Supply Voltage

(Note 1)

3.5

36

V

Operating Temperature Range

Topr

-40

+125

°C

Output Switch Current

(Note2)

BD90640HFP/EFJ-C

-

4

A

BD90620HFP/EFJ-C

-

2.5

A

BD90610EFJ-C

-

1.25

A

Output Voltage

0.8

V

Min ON Pulse Width

250

-

ns

Switching Frequency

50

600

kHz

Switching Frequency Set Resistance

22

330

kΩ

Synchronous Operation Frequency Range

50

600

kHz

Synchronous Operation Frequency

-20

+20

%

External Clock ON Duty

10

90

%

Capacitance of Input Capacitor

2.4

(Note 3)

-

µF

(Note 1) Initial startup is over 3.9 V.

(Note 2) The Limits include output DC current and output ripple current.

(Note 3) Ceramic capacitor is recommended. The capacitor value including temperature change, DC bias change, and aging change must be larger than

minimum value (Refer to p.15). Also, the IC might not function properly when the PCB layout or the position of the capacitor is not good. Please check

“Notes on the PCB Layout” on page 30.