BD9202EFS 데이터 시트보기 (PDF) - ROHM Semiconductor
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BD9202EFS Datasheet PDF : 20 Pages
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BD9202EFS
Technical Note
Parameter
Symbol
【LOADSW section】
LOADSW ON value of resistance
【Filter(CP1,CP2) section】
CP Detection voltage
CP Charging current
【LED output (LED1～8) section】
LED Electric current absolute
variation
ISET Clamp voltage
Open detection voltage
Short detection voltage
【Logic input(EN,CPUCS,CPUCLK,CPUDI)】
RON_LOAD
VCP
ICP
⊿ILED
VISET
VOPEN
VSHORT
Input High voltage
VINH
Input Low voltage
VINL
Input influx electric current
(CPUCS,CPUCLK,CPUDI)
Input influx electric current (EN)
【Logic output section(CPUDO)】
output High voltage
output Low voltage
【FAIL1,2outut open drain】
FAIL Low voltage
IIN
IEN
VOUTH
VOUTL
VOL
Limit
Min Typ Max Unit
Condition
1.2
2.0
2.2 kΩ ILOAD=1mA
1.8 2.0 2.2 V CP1,CP2=Sweep up
-2.0 -1.0 -0.5 uA CP1,CP2=0V
-
-
(5)
%
ILED=75mA,VSET=1.65V
RISET=130kΩ
1.8 2.0 2.2 V when input VSET＞VISET
0.05 0.20 0.35 V VLED=Sweep down
3.5 4.0 4.5 V VLED=Sweep up
0.7×
CPUVDD
-
CPUVDD
+0.3
V
-0.3
-
0.3×
CPUVDD
V
VIN=5V(CPUCS,
-5
0
5
uA CPUCLK,CPUDI),
CPUVDD=5V
13
25
38 uA VEN=5V(EN)
2.4 2.7
-
-
0.25 0.6
V IOL=-1mA,CPUVDD=3V
V IOL=1mA,CPUVDD=3V
0.07 0.14 0.28 V IOL=1mA
＊This product is not designed for protection against radioactive rays.
●Block diagram
VIN
CIN
UVLO
34
VCC
14
EN 41
VREF
16
RT 28
CT_SYNC_IN
37
CT_SYNC_OUT
35
AGND
8
COMP 39
RPC
CPC
CPUVDD
11
CPUCS
CPUCLK
CPUDI
13
12 I/F
9
CPUDO
10
TOUT2 40
VSET 18
ISET
17
BRT 27
BCT_SYNC_IN 38
BCT_SYNC_OUT
36
TEST 19
CREG
VREG LOADSW
15
33
VREG
UVLO UVLO
EXT VREG
TSD OVP
OSC1
PWM COMP
-
+
+
Control
Logic
OCP
FILTER
Driver
-
+
OVP
30
CP1
4
CP1
FAIL1
6
SWOUT
31
29 CS
Logic
-
ERR AMP
-
-
-
-
-
-
-
+
Current driver
PGND1
32
1 LED1
3 LED2
20 LED3
22 LED4
23 LED5
25 LED6
42 LED7
44 LED8
ISET
OSC2
PWMCLK
Open-Short
Detect
2
PGND2
21
PGND3
24
PGND4
43
PGND5
FILTER
CP2
5
CP2
FAIL2
7
26 TOUT1
+
COUT
Nov.29.2007
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
3/19
2009.04 - Rev.A
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