BD9206EFV Datasheet, PDF (3/13 Pages) Rohm – Simple Structure Constant Current Backlight Driver for LCD panels (Non-step type)

BD9206EFV
●Block diagram
Technical Note
●Package outline drawing
VCC
20
STBY
2
AGND
4
PREREG
100k
REF
EN
3
100k
5VREG
PREREG
TSD
5VREG
VSET
18
Driver
6
Current
RSET _Setting
5V
1 ^VREG
REG
UVLO
5VREG _Current
Driver
LED1
6
ENH1
ISET1
5VREG
LED2～5
ISET2～5
4
Vo
・・・・
BD9206EFV
Lot No.
TEST 17
Fig..1
5VREG
ISET6
LED6
15
PGND1～2
HTSSOP-B20（Unit：mm）
Fig..2
●Terminal placement diagram ●Terminal explanation
VREG 1
20 VCC
Terminal
number
Terminal
name
Function
STBY 2
19 N.C.
1
VREG
Power supply for internal circuit
EN ₃
AGND 4
18 VSET
17 TEST
Stand by terminal
2
STBY
(Low:OFF,High:stand by,
operation)
PGND1 5
16 PGND2
3
EN
LED1～16 Enable terminal(Active:High)
LED1 6
LED2 7
LED3 8
N.C. 9
15 LED6
14 LED5
13 LED4
12 N.C.
4
AGND
GND for internal standard section
5
PGND1
POWER GND for LED driver
6
LED1
Output terminal 1 for LED driver
N.C. 10
11 N.C.
7
LED2
Output terminal 2 for LED driver
Fig..3
8
LED3
Output terminal 3 for LED driver
9
N.C.
(Not yet connected terminal)
10
N.C.
(Not yet connected terminal)
Terminal
number
11
Terminal
name
N.C.
Function
(Not yet connected terminal)
12
N.C.
(Not yet connected terminal)
13
LED4
Output terminal 4 for LED driver
14
LED5
Output terminal 5 for LED driver
15
LED6
Output terminal 6 for LED driver
16
PGND2
Power GNDPOWER GND for LED
driver
17
TEST
Terminal for test mode shift
(Use at usual time：Low)
18
VSET
Standard voltage terminal for fixed
electric current setting
19
N.C.
(Not yet connected terminal)
20
VCC
Terminal of power supply
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3/12
2009.07 - Rev.A