|
BH6575FV_11 Datasheet, PDF (19/26 Pages) Rohm – Silicon monolithic integrated circuit | |||
|
◁ |
19/25
â測å®åè·¯å³ã¹ã¤ãã表ï¼
TABLE OF MEASURE CIRCUIT SWITCH POSITION 2
ï¼ç¹ã«æå®ã®ãªãéã
Unless specified particularly ST=1, PVCC=REGO=2.4V, VSYS=2.5V, VG=6V, VREF=1.25V, MUTE1=0.5V, MUTE34=1.5Vï¼
PARAETER
ST
INPUT
1 3 6 27 28 29 31 32 35 37 40 EI CT CLK START OFF
CONDITION
CIR- MEASURE POINT
CUIT
<DCï¼ï¼¤ï¼£ ã³ã³ãã¼ã¿ DC/DC converter>
VSWH
3
2 0.7V 0.2V
ISW=5mA Fig4-1
Vm37
VSWL
â
â â 2V
ISW=-1mA
â
â
tSWSTA
4
VSYS=1.6V, VG=5V â
FC37
fSW1
2
â 0.7V
â
â
fSW2
3
â
ââ
PULSE
â
â
DSWSTA
â
VSYS=1.6V, VG=5V â
â
DSW1
2
â 0.7V
â
â
DSW2
3
â
â
PULSE
â
â
<ä¸è§æ³¢çºçåè·¯ Triangular wave generation circuit>
CTTHH *
3
0.7V SWEEP
Fig4-1
Vm37
* CT端åã0.7Vããä¸ãã¦ãã£ãæã«ãSW端åé»å§(Vm37)ã"H"â"L"ã«ãªãæã®CT端åé»å§
CT terminal voltage when SW terminal (Vm37) varies from "H"â"L" upon increasing the CT voltage from 0.7V.
CTTHL *
3
0.7V SWEEP
Fig4-1
Vm37
* CT端åã0.5Vããä¸ãã¦ãã£ãæã«ãSW端åé»å§(Vm37)ã"L"â"H"ã«ãªãæã®CT端åé»å§
CT terminal voltage when SW terminal (Vm37) varies from "L"â"H" upon decreasing the CT voltage from 0.5V.
ICTSIN
3
0.7V 1V
Fig4-1
Am29
ICTSOU
â
â 0.2V
â
â
HCT
â ICTSOU/ISTSIN
<VSYSåè·¯ VSYS circuit section>
VDIS *
0.7V
Fig4-1
Vm28
* VSYS=1.62Vã§SOFT端å(Vm28)ã"H"ãVSYS=1.4Vã§SOFT端å(Vm28)ã"L"ã§ãããã¨ã確èª
SOFT terminal (Vm28) shall be "H" at VSYS=1.62V, SOFT terminal shall be "L" at VSYS=1.4V.
VSTN
2
3
3 0.7V 0.2V
2.1V
Fig4-1
Vm37
* VSYS端åã1.5Vããä¸ãã¦ãã£ãæã«ãSW端åé»å§(Vm37)ã"Hi-z"â"H"ã«ãªãæã®VSYS端åé»å§
VSYS terminal voltage when SW terminal (Vm37) varies from "Hi-z"â"H" upon increasing the CT voltage from 1.5V.
VNST
2
3
3 0.7V 0.2V
2.1V
Fig4-1
Vm37
* VSYS端åã2Vããä¸ãã¦ãã£ãæã«ãSW端åé»å§(Vm37)ã"H"â"Hi-z"ã«ãªãæã®VSYS端åé»å§
VSYS terminal voltage when SW terminal (Vm37) varies from "H"â"Hi-z" upon decreasing the CT voltage from 2V.
VSTNHIS
Fig4-1 VSTN-VNST
<ãªã»ãã Reset section>
HRST *
*
Fig4-1
Vm6
* RESET=VEITH*0.9Vã§RESET端å(Vm6)ã"H"ãRESET=VEITH*0.8Vã§RESET端å(Vm6)ã"L"ã§ãããã¨ã確èª
RESET terminal (Vm6) shall be "H" at EI=VEITH*0.9V, RESET terminal shall be "L" at EI=VEITH*0.8V.
VORESET
2
*
* VEITH*0.8, IRES=-1mA Fig4-1
Vm6
ILKRESET
3
*
* VEITH*0.9, RESET=2.5V â
Am6
<ã¬ã®ã¥ã¬ã¼ã¿åè·¯é¨ Regulator circuit section>
VREG
22
Fig4-1 REGO=open,DC_IN=5V, IREG=100mA
Vm32
VOREGB
3
DC_IN=6V, IREGB=-10mA â
Vm31
ILKREGB
4
â DCIN=6V, REGO=3.5V, REGB=6V
Am31
ILMREGB *
3
DC_IN=6V
â
Vm31
* IREGB=-10mAã§REGB端å(Vm31)ã"L"ãIREGB=-20mAã§REGB端å(Vm31)ã"H"ã§ãããã¨ã確èª
REGB terminal (Vm31) shall be "L" at IREGB=-10mA, REGB terminal shall be "H" at IREGB=-20mA.
VDC_INLV
5
VDC_INOF
â
DC_IN=1.3V Fig4-1
DC_IN=1.9V
â
Vm32
Vm31
REV. B
|
▷ |