View R5210X_1086069.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Step-down DC/DC Converter with VR and Reset
5[ 6(5,(6
NO. EA-102-0301
OUTLINE
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
FEATURES
* :LGH 5DQJH RI ,QSXW 9ROWDJH9a9 * %XLOWLQ 6RIWVWDUW )XQFWLRQ 7\S PV DQG EXLOWLQ SRZHURQ UHVHW GHOD\ 7\S PV * 0D[LPXP 2XWSXW &XUUHQW P$ '&'& P$ 95 * +LJK $FFXUDF\ 2XWSXW 9ROWDJH * $FFXUDF\ RI YROWDJH GHWHFWRU * 2XWSXW 9ROWDJH 95 6WHSZLVH 6HWWLQJ ZLWK D VWHS RI 9 LQ WKH UDQJH RI 9 WR 9 * 2XWSXW 9ROWDJH '&'& 6WHSZLVH 6HWWLQJ ZLWK D VWHS RI 9 LQ WKH UDQJH RI 9 WR 9 * 2XWSXW 9ROWDJH 9' 6WHSZLVH 6HWWLQJ ZLWK D VWHS RI 9 LQ WKH UDQJH RI 9 WR 9 * 3DFNDJHV 627: WKLFNQHVV 0D[ PP RU +621 WKLFNQHVV 0D[ PP '&'& DQG 9ROWDJH 5HJXODWRU 2XWSXW
APPLICATIONS
* 3RZHU VRXUFH IRU KDQGKHOG FRPPXQLFDWLRQ HTXLSPHQW &' RU '9' GULYHV * 3RZHU VRXUFH IRU EDWWHU\SRZHUHG HTXLSPHQW
1
R5210X
BLOCK DIAGRAM
VIN Current Limit CONTROL OSC
VOUT1
LX
OUTPUT CONTROL
+ Soft Start
+
Vref
Current Limit
+
VOUT2
Vref U.V.L.O. Vref Delay Circuit VDOUT
+ -
GND
SELECTION GUIDE
,Q WKH 5[ 6HULHV WKH RXWSXW YROWDJH FRPELQDWLRQ IRU WKH ,&V FDQ EH VHOHFWHG DW WKH XVHU*V UHTXHVW 7KH VHOHFWLRQ FDQ EH PDGH ZLWK GHVLJQDWLQJ WKH SDUW QXPEHU DV VKRZQ EHORZ 5[[[[[75 DEF G Code 'HVLJQDWLQJ WKH 3DFNDJH W\SH D E F G 1 627: ' +621 8QGHU 'HYHORSPHQW 2XWSXW 9ROWDJH &RPELQDWLRQ &RGH 1XPEHU 'HVLJQDWLRQ RI 2SWLRQDO )XQFWLRQ & 6WDQGDUG 'HVLJQDWLRQ RI 7DSLQJ 7\SH 5HIHU WR 7DSLQJ VSHFLILFDWLRQ Contents 3DUW 1XPEHU
2
R5210X
PIN CONFIGURATIONS
* SOT-23-6W
6 5 4
* HSON-6
6 5 4
(Mark side)
(Mark side)
1
2
3
1
2
3
R5210Nxxxx
R5210Dxxxx
PIN DESCRIPTION
Pin No. Symbol R5210N R5210D 9287 9'287 9287 /[ *1' 9,1 2XWSXW 3LQ RI 9ROWDJH 5HJXODWRU 2XWSXW 3LQ RI 9ROWDJH 'HWHFWRU 1FKDQQHO RSHQGUDLQ RXWSXW W\SH '&'& FRQYHUWHU 6WHSGRZQ 2XWSXW PRQLWRULQJ 3LQ 6ZLWFKLQJ 3LQ 3FKDQQHO RSHQGUDLQ RXWSXW W\SH *URXQG 3LQ 9ROWDJH 6XSSO\ 3LQ Description
ABSOLUTE MAXIMUM RATINGS
*1' 9 Symbol 9,1 9/; 9287 9287 9'287 ,/; ,287 3' 3' 7RSW 7VWJ 9,1 3LQ 9ROWDJH /[ 3LQ 9ROWDJH 9287 3LQ 9ROWDJH 9287 3LQ 9ROWDJH 9'287 3LQ 9ROWDJH /[ 3LQ 2XWSXW &XUUHQW 9287 3LQ 2XWSXW &XUUHQW 3RZHU 'LVVLSDWLRQ 627: 3RZHU 'LVVLSDWLRQ +6218QGHU 'HYHORSPHQW 2SHUDWLQJ 7HPSHUDWXUH 5DQJH 6WRUDJH 7HPSHUDWXUH 5DQJH Item Rating a9,1 a9,1 a9,1 a9,1 a a Unit 9 9 9 9 9 P$ P$ P: P: & &
3
R5210X
ELECTRICAL CHARACTERISTICS
* R5210N001C Symbol 9,1 ,'' 989/2 989/2 DC/DC Part Symbol 9287 9287 7 I26& I26&7 5/; ,/;OHDN ,/;OLP 0D[GW\ 7VWDUW VR part Symbol 9287 ,287 95(* 9',) ,/,0 9287 7 Item 95 2XWSXW 9ROWDJH 0D[LPXP 2XWSXW &XUUHQW RI 95 95 /RDG 5HJXODWLRQ 'URSRXW 9ROWDJH 6KRUW &XUUHQW /LPLW 95 2XWSXW 9ROWDJH 7HPSHUDWXUH &RHIILFLHQW Conditions 9,1 9 ,287 P$ 9,1 9 9,1 9 P$,287P$ ,287 P$ 9287 9 &7RSW& Min. Typ. Max. Unit 9 P$ P9 9 P$ SSP & Item '&'& 2XWSXW 9ROWDJH '&'& 2XWSXW 9ROWDJH 7HPSHUDWXUH &RHIILFLHQW 2VFLOODWRU )UHTXHQF\ 2VFLOODWRU )UHTXHQF\ 7HPSHUDWXUH &RHIILFLHQW /[ RQ 5HVLVWDQFH /[ /HDNDJH &XUUHQW /[ &XUUHQW /LPLW 0D[LPXP GXW\ F\FOH 6RIWVWDUW 7LPH 9,1 9 Conditions 9,1 9 DW QR ORDG &7RSW& 9,1 9 &7RSW& 9,1 9 ,/; P$ 9,1 9287 9 9/; 9 9,1 9 PV Min. Typ. Max. Unit 9 SSP & N+] N+] & $ P$ Item 2SHUDWLQJ ,QSXW 9ROWDJH 6XSSO\ &XUUHQW 89/2 'HWHFWRU 7KUHVKROG 9ROWDJH 89/2 5HOHDVH 9ROWDJH 9,1 9 9287 9 Conditions Min. 989/2 Typ. 7RSW & Max. Unit 9 $ 9 9
4
R5210X
VD part Symbol 9'(7 9'(77 9+<6 W3/+ ,'287/ Item 9' 'HWHFWRU 7KUHVKROG 9' 'HWHFWRU 7KUHVKROG 7HPSHUDWXUH &RHIILFLHQW +\VWHUHVLV 5DQJH 9' 2XWSXW 'HOD\ 7LPH IRU 5H OHDVH 9'287 / 2XWSXW &XUUHQW 9,1 9 9'287 9 &7RSW& Conditions Min. Typ. 9'(7 x Max. Unit 9 SSP & 9 PV P$
TYPICAL APPLICATION AND APPLICATION HINTS
* R5210NxxxC
C3 VOUT2 VDOUT + R1 VOUT2 VDOUT VOUT1 VIN C1 GND LX +
C2 L1 D1
VOUT1
Examples of Components ,QGXFWRU / /4+& 0XUDWD + RU /'57 7'. 6KRWWN\ 'LRGH ' 5%' 5RKP RU (34/ 1LKRQ ,QWHU 3XOOXS 5HVLVWRU 5 N &DSDFLWRUV & ) &HUDPLF &DSDFLWRU & ) 7DQWDOXP &DSDFLWRU & ) 7DQWDOXP &DSDFLWRU
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
5
R5210X
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
6
R5210X
OPERATION of step-down DC/DC converter and Output Current
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ILmax
i1 Lx Tr SD L i2 CL
IOUT
ILxmin topen
VIN
VOUT
ton T=1/fosc
toff
6WHS /[ 7U WXUQV RQ DQG FXUUHQW ,/ ,/PLQ
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7
R5210X
* Discontinuous Conduction Mode and Continuous Conduction Mode 7KH PD[LPXP YDOXH ,/PD[ DQG WKH PLQLPXP YDOXH ,/PLQ FXUUHQW ZKLFK IORZ WKURXJK WKH LQGXFWRU LV WKH VDPH DV WKRVH ZKHQ /[ 7U WXUQV RQ DQG ZKHQ LW WXUQV RII 7KH GLIIHUHQFH EHWZHHQ ,/PD[ DQG ,/PLQ ZKLFK LV UHSUHVHQWHG E\ , , ,/PD[,/PLQ 9287xWRSHQ/ :KHUH 7 IRVF WRQ WRII GXW\ WRSHQWRII ,Q (TXDWLRQ 9287xWRSHQ/ DQG 9,19287 x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x92879,1 (TXDWLRQ :KHQ WRQWRQF WKH PRGH LV WKH GLVFRQWLQXRXV PRGH DQG ZKHQ WRQ WRQF WKH PRGH LV WKH FRQWLQXRXV PRGH WRQ7x WRQxIRVFx 9,19287 xWRQ/ (TXDWLRQ
OUTPUT CURRENT AND SELECTION OF EXTERNAL COMPONENTS
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R5210X
Timing Chart
(-VDET+VHYS) -VDET VUVLO2 VUVLO1 VIN Voltage
Soft-start Time
VOUT1 Voltage
LX Voltage VD Delay for Release VDOUT Voltage VD Delay for Release
VOUT2 Voltage
7KH WLPLQJ FKDUW ZKLFK LV VKRZQ LQ WKH SUHYLRXV SDJH GHVFULEHV WKH UHODWLRQ RI VXSSO\ YROWDJH FKDQJHV ZLWK WLPH DQG HDFK RXWSXW RI '&'& FRQYHUWHU YROWDJH GHWHFWRU DQG YROWDJH UHJXODWRU (1) DC/DC converter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oltage Detector ,I WKH 9,1 YROWDJH LV DW 9' GHWHFWRU WKUHVKROG OHYHO RU OHVV WKH 1FKDQQHO WUDQVLVWRU RI 9'287 SLQ WXUQV RQ DQG RXWSXWV / WR 9'287 SLQ 7KHQ ZKHQ WKH 9,1 YROWDJH EHFRPHV 9' GHWHFWRU WKUHVKROG OHYHO LWV K\VWHUHVLV UDQJH 9'(7 9+<6 RU PRUH DIWHU 9' GHOD\ IRU UHOHDVH WS/+ SDVVLQJ WKH 1FKDQQHO WUDQVLVWRU LQVLGH WKH ,& WXUQV RII 9'287 SLQ YROWDJH UHDFKHV WR WKH SXOOXS YROWDJH %HVLGHV WKH UHOHDVH FLUFXLW IRU 9' VWDUWV DIWHU VRIWVWDUW WLPH DQG XQGHU WKLV FRQGLWLRQ 9,1 YROWDJH VKRXOG EH 9'(7 9+<6 RU PRUH
9
R5210X
(3) Voltage Regulator 7KH YROWDJH UHJXODWRU DOZD\V RSHUDWHV HYHQ LI 89/2 IXQFWLRQ ZRXOG ZRUN 7KHUHIRUH 9287 YROWDJH LV QHDUO\ HTXDO WR 9,1 YROWDJH $FWXDO YDOXH GHSHQGV RQ WKH ORDG FXUUHQW :KHQ WKH 9,1 YROWDJH EHFRPHV VHW 9287 YROWDJH RU PRUH 9287 YROWDJH ZLOO EH WKH VHW RXWSXW YROWDJH
TEST CIRCUITS
A) Supply Current
VIN A VOUT1
B)
UVLO Detector Threshold/ Released Voltage
OSCILLOSCOPE VIN LX VOUT1
GND
GND
C) Lx Leakage Current
VIN LX VOUT1 A
D) Lx On Resistance
VIN LX VOUT1 V
GND
GND
E) Lx Current Limit
OSCILLOSCOPE
F)
VOUT1 Output Voltage
OSCILLOSCOPE
VIN
LX VOUT1
VIN
LX VOUT1 VOUT2
GND
GND
10
R5210X
G) Oscillator Frequency, Soft-start Time
OSCILLOSCOPE OSCILLOSCOPE VOUT1
VIN
LX VOUT1
GND
H) VOUT2 Output Voltage, Load Regulation, Dropout Voltage, Current Limit, Short Current Limit
VIN LX VOUT1 VOUT2 GND V
I)
VDOUT Detector Threshold, Hysteresis Range, VD Output Delay Time for Release
VIN LX VOUT1
GND
VDOUT
IOUT2
OSCILLOSCOPE
J)
VDOUT "L" Output Current
VIN VOUT1
GND VDOUT
A
7\SLFDO &KDUDFWHULVWLFV ZHUH REWDLQHG ZLWK XVLQJ WKH WHVW FLUFXLWV DV IROORZV 7\SLFDO $SSOLFDWLRQ &LUFXLW 7\SLFDO &KDUDFWHULVWLFV 7HVW &LUFXLW ) 7\SLFDO &KDUDFWHULVWLFV 7HVW &LUFXLW * 7\SLFDO &KDUDFWHULVWLFV 7HVW &LUFXLW + 7\SLFDO &KDUDFWHULVWLFV 7HVW &LUFXLW , 7\SLFDO &KDUDFWHULVWLFV
11
R5210X
TYPICAL CHARACTERISTICS
1) Output Voltage vs. Output Current R5210N001C
L1=22H, C1=10F VOUT1=2.7V, IOUT2=0mA 2.8 100 90 80 70 60 50 40 30 20 10 0 0 100 200 300
2)
Efficiency vs. Output Current R5210N001C
L1=22H, C1=10F VOUT1=2.7V, IOUT2=0mA
Output Voltage VOUT1(V)
2.7 VIN=4.5V VIN=5.0V VIN=5.5V
Efficiency (%)
2.75
2.65
VIN=4.5V VIN=5.0V VIN=5.5V
2.6 0 100 200 300 400 500
400
500
Output Current IOUT1(mA)
Output Current IOUT1(mA)
3)
DC/DC Output Voltage vs. Temperature R5210N001C
2.80
4)
VR Output Voltage vs. Temperature R5210N001C
3.50
Output Voltage VOUT1(V)
2.75
Output Voltage VOUT2(V)
-25 0 25 50 75 100
3.45
2.70
3.40
2.65
3.35
2.60 -50
3.30 -50
-25
0
25
50
75
100
Temperature Topt(C)
Temperature Topt(C)
5)
Detector Threshold vs. Temperature R5210N001C
4.4
6)
Oscillator Frequency vs. Temperature R5210N001C
1000
Detector Threshold-VDET(V)
4.3
Frequency fosc(kHz)
-25 0 25 50 75 100
900
4.2
800
4.1
700
4.0 -50
600 -50
-25
0
25
50
75
100
Temperature Topt(C)
Temperature Topt(C)
12
R5210X
7)
Soft-start time vs. Temperature R5210N001C
4.0
8)
Output Delay Time for Release VD vs. Temperature R5210N001C
Output Delay Time for Release VD tPLH(msec)
20 16 12 8 4 0 -50
Soft-start Time TSS(msec)
3.0
2.0
1.0
0.0 -50
-25
0
25
50
75
100
-25
0
25
50
75
100
Temperature Topt(C)
Temperature Topt(C)
9)
VR Output Voltage vs. Output Current R5210N001C
4
10) VR Output Voltage vs. Output Current (zoomed) R5210N001C
3.43
Output Voltage VOUT2(V)
Output Voltage VOUT2(V)
0 50 100 150 200 250 300
3.5 3 2.5 2 1.5 1 0.5 0
3.42 3.41 3.4 3.39 3.38 3.37 3.36 0 50 100 150 200
Output Current IOUT2(mA)
Output Current IOUT2(mA)
11) Load Transient Response 1
L1=22H, C1=10F VOUT1=2.7V
12) Load Transient Response 2
L1=22H, C1=10F VOUT1=2.7V
IOUT1=200mA
IOUT1=200mA
1
IOUT1=10mA
1
IOUT1=10mA
2
2
Ch1 500mV
Ch2 100mV
M 50.0s Ch1
200mV
Ch1 500mV
Ch2 100mV
M 200s Ch1
200mV
13

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Price & Availability of R5210X

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