BD9897FS Rohm, BD9897FS Datasheet

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BD9897FS

Manufacturer Part Number
BD9897FS
Description
DC-AC Inverter Control IC
Manufacturer
Rohm
Datasheet

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Part Number:
BD9897FS
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○Absolute Maximum Ratings(Ta = 25℃)
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
〇Operating condition
STRUCTURE
NAME OF PRODUCT
TYPE
FUNCTION
these
are
*
Pd derate at 7.6mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm)
Supply Voltage
BST pin
SW pin
BST-SW voltage difference
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Power Dissipation
Supply voltage
BST voltage
BST-SW voltage difference
CT oscillation frequency
BCT oscillation frequency
any
uncertainty
・ 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
Parameter
Silicon Monolithic Integrated Circuit
DC-AC Inverter Control IC
BD9897FS
in
translation
Symbol
Symbol
BST-SW
BST-SW
version
Tjmax
Topr
Tstg
f
BST
BST
V
f
V
SW
Pd
BCT
CC
CT
CC
REV. B
of
this
7.5~30.0
4.0~36.0
-55~+150
4.0~6.5
0.05~1.00
-40~+85
60~180
Limits
Limits
document,
+150
950*
36
40
36
7
official
Unit
Unit
kHz
kHz
version
mW
V
V
V
V
V
V
V
takes
priority.
1/4

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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 ...

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