BD9890F-E2 Rohm Semiconductor, BD9890F-E2 Datasheet

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BD9890F-E2

Manufacturer Part Number
BD9890F-E2
Description
IC INVERTER CONTROL SOP28
Manufacturer
Rohm Semiconductor
Series
-r
Datasheet

Specifications of BD9890F-E2

Applications
LCD Display
Current - Supply
11mA
Voltage - Supply
5 V ~ 14 V
Operating Temperature
-40°C ~ 90°C
Mounting Type
Surface Mount
Package / Case
28-SOIC (0.295", 7.50mm Width)
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
〇Recommended operating condition
○Absolute Maximum Ratings(Ta = 25℃)
Status of this document
STRUCTURE
NAME OF PRODUCT
TYPE
FUNCTION
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 in translation version of this document, official version takes priority.
*1
*2
Pd derate at 6.0mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm)
Pd derate at 8.5mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm)
Supply Voltage
Operating Temperature Range
Storage Temperature Range
Power Dissipation
Maximum Junction Temperature
Supply voltage
CT oscillation frequency
BCT oscillation frequency
\\
・Synchronous operating the other BD9890F or BD9890FV IC’s
・2ch in-phase in BURST mode
・Sequencing easily achieved with Soft Start Control
・Short circuit protection with Timer Latch
・Under Voltage Lock Out
・Short circuit protection with over voltage
・Mode-selectable the operating or stand-by mode by stand-by pin
・BURST mode controlled by PWM and DC input
・2ch control with Push-Pull
・Lamp current and voltage sense feed back control
Parameter
Parameter
Silicon Monolithic Integrated Circuit
BD9890F
DC-AC Inverter Control IC
Symbol
Symbol
Tjmax
Topr
Tstg
f
V
f
V
BCT
Pd
CC
CT
CC
REV. A
850
600
5.0~14.0
-55~+125
0.05~0.50
*2
-40~+90
20~150
*1
Limits
Limits
(BD9890FV)
(BD9890F)
+125
15
Unit
Unit
kHz
kHz
mW
V
V
1/4

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BD9890F-E2 Summary of contents

Page 1

... Timer Latch ・Under Voltage Lock Out ・Short circuit protection with over voltage ・Mode-selectable the operating or stand-by mode by stand-by pin ・Synchronous operating the other BD9890F or BD9890FV IC’s ・BURST mode controlled by PWM and DC input ・2ch in-phase in BURST mode \\ ○Absolute Maximum Ratings(Ta = 25℃) ...

Page 2

Characteristics(Ta=25℃,VCC=7V) Parameter ( (WHOLE DEVICE) ) Operating current Stand-by current ( (OVER VOLTAGE DETECT) ) FB over voltage detect voltage ( (STAND BY CONTROL) ) Stand-by voltage H Stand-by voltage L Stand-by hysteresis ( (TIMER LATCH) ) Timer Latch ...

Page 3

... VCC NA2 LOGIC OUTPUT BLOCK BLOCK② NB2 ② PGND FAIL REV. A BD9890FV SSOP-B28 (unit:mm) Pin Function Name 1 DUTY Control PWM mode and BURST mode External resistor from BRT to GND for 2 BRT adjusting the BURST triangle oscillator External capacitor from BCT to GND for ...

Page 4

... On operating Slow Start Control (SS is less than 2.2V), It does not operate Timer Latch. 10. By STB voltage, BD9890F and BD9890FV are changed to 2 states. Therefore, do not input STB pin voltage between one state and the other state (0.8~1.6). 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 ...

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