BD9897FS

Manufacturer Part NumberBD9897FS
DescriptionDC-AC Inverter Control IC
ManufacturerRohm
BD9897FS datasheet
 
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STRUCTURE
NAME OF PRODUCT
TYPE
FUNCTION
○Absolute Maximum Ratings(Ta = 25℃)
Supply Voltage
BST pin
SW pin
BST-SW voltage difference
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Power Dissipation
*
Pd derate at 7.6mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm)
〇Operating condition
Supply voltage
www.DataSheet4U.com
BST voltage
BST-SW voltage difference
CT oscillation frequency
BCT oscillation frequency
Status of this document
The Japanese version of this document is the official specification.
Please use the translation version of this document as a reference to expedite understanding of the official version.
If
these
are
any
uncertainty
Silicon Monolithic Integrated Circuit
DC-AC Inverter Control IC
BD9897FS
・ 36V High voltage process
・ 1ch control with Full-Bridge
・ Lamp current and voltage sense feed back control
・ Sequencing easily achieved with Soft Start Control
・ Short circuit protection with Timer Latch
・ Under Voltage Lock Out
・ Mode-selectable the operating or stand-by mode by stand-by pin
・ Synchronous operating the other BD9897FS IC’s
・ BURST mode controlled by PWM and DC input
・ Output liner Control by external DC voltage
Parameter
Symbol
V
CC
BST
SW
BST-SW
Topr
Tstg
Tjmax
Pd
Parameter
Symbol
V
CC
BST
BST-SW
f
CT
f
BCT
in
translation
version
REV. B
Limits
Unit
36
V
40
V
36
V
7
V
-40~+85
-55~+150
+150
950*
mW
Limits
Unit
7.5~30.0
V
4.0~36.0
V
4.0~6.5
V
60~180
kHz
0.05~1.00
kHz
of
this
document,
official
version
1/4
takes
priority.

BD9897FS Summary of contents

  • Page 1

    ... Short circuit protection with Timer Latch ・ Under Voltage Lock Out ・ Mode-selectable the operating or stand-by mode by stand-by pin ・ Synchronous operating the other BD9897FS IC’s ・ BURST mode controlled by PWM and DC input ・ Output liner Control by external DC voltage Parameter ...

  • Page 2

    Electric Characteristics(Ta=25℃,VCC=24V) Parameter ( (WHOLE DEVICE) ) Operating current Stand-by current ( (STAND BY CONTROL) ) Stand-by voltage H Stand-by voltage L ( (UVLO BLOCK) ) ) Operating voltage (VCC) Hesteresis width (VCC) Operating voltage (UVLO) Hesteresis width (UVLO) ...

  • Page 3

    ... Dimensions BD9897FS SSOP-A32 (Unit:mm) 〇Block Diagram www.DataSheet4U.com Device Mark Lot No. REV. B 〇Pin Description PIN PIN NAME FUNCTION No. 1 PGND Ground for FET drivers 2 LN2 NMOS FET driver 3 HN2 NMOS FET driver 4 SW2 Lower rail voltage for HN2 output 5 BST2 ...

  • Page 4

    ... Make sure to leave adequate margin for this IC variation. 9. On operating Slow Start Control (SS is less than 2.2V), It does not operate Timer Latch. 10. By STB voltage, BD9897FS are changed to 2 states. Therefore, do not input STB pin voltage between one state and the other state (0.8~2.0V). 11. ...

  • Page 5

    ... ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing ...