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What is BD9397EFV?

This electronic component, produced by the manufacturer "ROHM Semiconductor", performs the same function as "LED Drivers".


BD9397EFV Datasheet PDF - ROHM Semiconductor

Part Number BD9397EFV
Description LED Drivers
Manufacturers ROHM Semiconductor 
Logo ROHM Semiconductor Logo 


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Total 30 Pages



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Datasheet
LED Drivers for LCD Backlights
White LED Driver for large LCD
panel
BD9397EFV
General Description
BD9397EFV is a high efficiency driver for white LEDs
and designed for large LCD panel. This IC is built-in
high current drive and high responsibility type 6ch LED
drivers and 1ch boost DCDC converter. BD9397EFV
has some protect function against fault conditions,
such as the over-voltage protection (OVP), LED OPEN
and SHORT protection, the over current limit
protection of DCDC (OCP). Therefore BD9397EFV is
available for the fail-safe design over a wide range
output voltage.
Key Specification
Operating power supply voltage range: 9.0V to 35.0V
Oscillator frequency:
500kHz (RT=30k)
Operating Current:
9mA (typ.)
Operating temperature range:
-40°C to +85°C
Applications
TV, Computer Display, Notebook, LCD Backlighting
Typical Application Circuit
Vin Cin
VCC
VCC
STB
CVCC
FAIL_MODE
FAIL_RST
RT
SS
REG9V UVLO
VREG
UVLO
(VCC)
UVLO TSD
OVP SCP
OSC
SS
PROTECTION
Logic
PWM
COMP
++
-
-
Control
Logic
Filter
REG9V
Current
Sense
DRIVER
REG9V
OVP
FAIL
CP
N
PGND
CS
FB
RFB
CFB LED_LV
REG9V
LSP
ERR
AMP ----
-
+
OPEN/SHORT
Detect
M_DET
LED1
+
-
S1
VREF
PWM1
1/5
+
-
PWM6
AGND
AGND
LED6
+
-
S6
N.C.
Figure 1. Typical Application Circuit
+Cout
Features
6ch Constant LED drivers, available 400mA drive
per 1ch.
Constant current accuracy ±1.8% (IC only)
Each 6ch external PWM inputs can control independent
dimming .
Current analog (linear) dimming by VREF
1ch boost controller with current mode (external FET)
Several protection functions
DCDC part : OCP/OVP/UVLO/TSD
LED driver part :OPEN,SHORT detection
SHORT detection voltage is set by LSP terminal.
Error detection output FAIL terminal inside
(normal=Open, error=Drain)
Package
HTSSOP-B40
Pin Pitch:
W(Typ.) D(Typ.) H(Max.)
13.60mm x 7.80mm x 1.00mm
0.65mm
Figure 2. HTSSOP-B40
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has not designed protection against radioactive rays
1/27
TSZ02201-0F1F0C100330-1-2
9.Jan.2014 Rev.001
http://www.Datasheet4U.com

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BD9397EFV equivalent
BD9397EFV
1.3 Pin Descriptions
No Pin name
1 VCC
2 FAIL
3 REG9V
4 N.C.
5N
6 PGND
7 CS
8 OVP
9 M_DET
10 AGND
11 LED1
12 LED2
13 LED3
14 LED4
15 LED5
16 LED6
17 STB
18 PWM1
19 PWM2
20 PWM3
21 PWM4
22 PWM5
23 PWM6
24 FAIL_RST
25 S6
26 S5
27 S4
28 S3
29 S2
30 S1
31 CP
32 SS
33 FB
34 RT
35 VREF
36 LED_LV
37 LSP
38 FAIL_MODE
39 UVLO
40 AGND
In/Out
Function
IN
OUT
OUT
-
OUT
IN
IN
IN
OUT
IN
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
Power source terminal
Abnormality detection output terminal (OPEN DRAIN)
9V regulator output terminal
Non connection terminal
DC/DC switching output terminal
Power GND terminal
DC/DC FET output current detection terminal
Overvoltage protection detection terminal
LED Diode OR output terminal
GND terminal for analog part
LED output 1
LED output 2
LED output 3
LED output 4
LED output 5
LED output 6
Standby control terminal
PWM dimming input signal terminal for LED 1
PWM dimming input signal terminal for LED 2
PWM dimming input signal terminal for LED 3
PWM dimming input signal terminal for LED 4
PWM dimming input signal terminal for LED 5
PWM dimming input signal terminal for LED 6
FAIL output reset terminal
Connecting terminal for LED 6 constant current setting resistor
Connecting terminal for LED 5 constant current setting resistor
Connecting terminal for LED 4 constant current setting resistor
Connecting terminal for LED 3 constant current setting resistor
Connecting terminal for LED 2 constant current setting resistor
Connecting terminal for LED 1 constant current setting resistor
Connecting terminal for non-reaction time setting capacitor
Connecting terminal for soft-start time setting capacitor
Error amplifier output terminal
Connecting terminal for DC/DC frequency setting resistor
Analog dimming DC voltage input terminal
LED control voltage set terminal
LED SHORT detection voltage setting terminal
FAIL function change terminal
Low voltage malfunction prevention detection terminal
GND terminal for analog part
Datasheet
rating
[V]
-0.3 to 36
-0.3 to 36
-0.3 to 13
-
-0.3 to 13
-
-0.3 to 7
-0.3 to 7
-0.3 to 13
-
-0.3 to 60
-0.3 to 60
-0.3 to 60
-0.3 to 60
-0.3 to 60
-0.3 to 60
-0.3 to 36
-0.3 to 22
-0.3 to 22
-0.3 to 22
-0.3 to 22
-0.3 to 22
-0.3 to 22
-0.3 to 22
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 7
-0.3 to 10.5
-
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/27
TSZ02201-0F1F0C100330-1-2
9.Jan.2014 Rev.001
http://www.Datasheet4U.com


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for BD9397EFV electronic component.


Information Total 30 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
BD9397EFVThe function is LED Drivers. ROHM SemiconductorROHM Semiconductor

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