BD9897FS-E2

Manufacturer Part NumberBD9897FS-E2
DescriptionIC INVERTER CTLR 32SSOP
ManufacturerRohm Semiconductor
BD9897FS-E2 datasheet
 


Specifications of BD9897FS-E2

ApplicationsInverter ControllerCurrent - Supply7.2mA
Voltage - Supply7.5 V ~ 30 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case*
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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STRUCTURE
Silicon Monolithic Integrated Circuit
NAME OF PRODUCT
DC-AC Inverter Control IC
BD9897FS
TYPE
FUNCTION
・ 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
○Absolute Maximum Ratings(Ta = 25℃)
Parameter
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
Parameter
Supply voltage
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
Symbol
V
CC
BST
SW
BST-SW
Topr
Tstg
Tjmax
Pd
Symbol
V
CC
BST
BST-SW
f
CT
f
BCT
in
translation
version
of
this
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
document,
official
version
takes
1/4
priority.

BD9897FS-E2 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 ○Absolute Maximum Ratings(Ta = 25℃) ...

  • 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 Lot No. SSOP-A32 (Unit:mm) 〇Block Diagram 〇Pin Description Device Mark PIN PIN NAME No CT_SYNC_IN 7 CT_SYNC_OUT DUTY_OUT REV. B FUNCTION PGND Ground for FET drivers LN2 NMOS FET driver HN2 NMOS FET driver SW2 Lower rail voltage for HN2 output ...

  • 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

    No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...