OMNIVISION WS4694C Sensor ya Zithunzi 
Kufotokozera
WS4694C ndi yaying'ono, yotsika RON, chosinthira tchanelo chimodzi chokhala ndi chiwopsezo chophedwa. Chipangizochi chimagwira ntchito mopitilira voltage osiyanasiyana 2.6 V mpaka 5.5 V. Chipangizochi chimathandizira malire apano kuchokera ku 0.05 A mpaka 2 A.
Kuwongolera nthawi yokwera kwa chipangizocho kumachepetsa kwambiri kuthamangitsidwa komwe kumachitika chifukwa cha kuchuluka kwa katundu wambiri, potero kuchepetsa kapena kuthetsa kutsika kwamagetsi. WS4694C ili ndi ntchito ya True Reverse-Current Blocking (TRCB) yomwe imalepheretsa kusafuna kwatsopano kuchokera ku VOUT kupita ku VIN panthawi ya ON ndi OFF. Kachida kakang'ono komanso kachipangizo ka RON kocheperako kapangidwira malo ogwiritsira ntchito batire. The wide input voltage range of switch imapangitsa kuti ikhale yankho losunthika pama voliyumu ambiri osiyanasiyanatagndi njanji.
Ma WS4694C akupezeka mu phukusi la CSP-9L. Zogulitsa zokhazikika ndizopanda Pb komanso zopanda Halogen.
Mawonekedwe
- Lowetsani VoltagMtundu: 2.6 V ~ 5.5 V
- Kuyeza kwathunthu pa VOUT: 28 V
- Kutulutsa kwakukulu: 2.0 A
- Malire Apano Osinthika: 0.05 A ~ 2.0 A
1 A ~ 2.0 A ndi 15% Zolondola - True Reverse-Current Blocking (TRCB)
- Pansi-Voltage Lockout ndi Thermal Shutdown
- Chithunzi cha CSP-9L
Kuitanitsa Zambiri
Table 1
| Chipangizo | Phukusi | Manyamulidwe |
| Zithunzi za WS4694C-9/TR | Chithunzi cha CSP-9L | 3000/Reel&Tepi |
Mapulogalamu
- Mafoni Anzeru, Ma Tablet PC
- Kusungirako, ma DSLR, ndi zida zina zonyamula
Pin Information 
Table 2
| Pin | Chizindikiro | Kufotokozera |
| A3, B3 | OUT | Pini yotulutsa |
| A1, B1 | IN | Pin yolowetsa |
| A2, B2 | GND | Pansi |
| C3 | EN | ON/OFF Control Input: Active HIGH |
| C2 | ISET | Kulowetsa Malire Pakalipano: Chotsutsa kuchokera ku ISET kupita pansi chimakhazikitsa
malire apano akusintha. |
|
C1 |
#OCFLAG |
Kutulutsa Kolakwika: Kutulutsa kwa LOW, kotsegula komwe kumawonetsa kulowetsapo pakalipano. Chikoka chakunja chotsutsa ku VDD chikufunika. |
Chithunzithunzi Choyimira 
Ntchito Yofananira 
Mtheradi Maximum Mavoti
Awa ndi mavoti opsinjika okha. Kupsyinjika kopitilira muyeso womwe wafotokozedwa mu Gulu 3 kungayambitse kuwonongeka kwa chipangizochi. Kugwira ntchito kwa chipangizo pazikhalidwe zina kupitirira zomwe zatchulidwa mwatsatanetsatane sikukutanthauza. Kuwona kwa nthawi yayitali kuzovuta kwambiri kungasokoneze kudalirika kwa chipangizocho.
Table 3
| Parameter | Chizindikiro | Min. | Max. | Chigawo |
| VOUT kupita ku GND, VOUT mpaka VIN | OUT | -0.3 | 28 | V |
| Zolemba zina za GND | IN, EN, ISET, #OCFLAG | -0.3 | 6 | V |
| Maximum Continuous Switch Current（1） |
ISW |
2.3 |
A |
|
| Kutentha kwa Operating Junction | TJ | -40 | 150 | oC |
| Kusungirako Kutentha Kusiyanasiyana | Mtengo wa TSTG | -65 | 150 | oC |
| Kutentha Kwambiri | TL | 260 | oC | |
|
Mavoti a ESD |
Mtengo wa HBM | 5 | kV | |
| CDM | 2 | kV | ||
| Kutulutsa kwa Air (VIN, VOUT mpaka GND) | 15 | kV | ||
| Contact Discharge (VIN, VOUT mpaka GND) | 8 | kV | ||
Maximum Junction Kutentha = 85°C
Limbikitsani Makonda a Ntchito
Gome ili m'munsili limafotokoza za momwe chipangizochi chikuyendera. Zomwe zimalangizidwa zimayikidwa kuti zitsimikizire kuti magwiridwe antchito amtundu wa datasheet.
Table 4
| Parameter | Chizindikiro | Min. | Max. | Chigawo |
| Wonjezerani Voltage | VIN | 2.6 | 5.5 | V |
| Zikhomo Zina | EN, ISET, #OCFLAG | 2.5 | 5.5 | V |
| Kutentha kwa Operating Ambient Temperature | TA | -40 | 85 | oC |
| Thermal Resistance, RθJA (CSP-9L)（2） | RJA | 110 | oC/W | |
Pamwamba wokwera pa FR-4 Board ntchito 2 oz, 1 lalikulu inchi Cu dera, PCB bolodi kukula 1.5 * 1.5 mainchesi lalikulu.
Makhalidwe Amagetsi
TA = -40 ku + 85 ° C, VIN = 2.6 ku 5.5 V, Makhalidwe omwe ali pa VIN = 5 V ndi TA = 25oC, pokhapokha atadziwika.
Table 5
| Parameter | Chizindikiro | Mkhalidwe | Min. | Lembani. | Max. | Chigawo |
| Basic Operation | ||||||
| Lowetsani Voltage | VIN | 2.6 | 5.5 | V | ||
| Quiscent Current | IQ | VIN= VEN, VOUT=Tsegulani,
TA=25oC |
80 | 150 | .A | |
| Shutdown Current | ISD | VIN=5.5 V, VOUT=0 V,
VEN=GND |
0.1 | .A | ||
| Off Supply Current | IQ (KUDZIWA) | VEN=GND, VOUT=Otsegula | 1 | .A | ||
|
Pa Kutsutsa |
RON |
VIN=VEN=5 V, IOUT=1 A,
TA=25oC |
75 | 100 |
mΩ |
|
| VIN=VEN=3.7 V, IOUT=1 A,
TA=25oC |
85 | 105 | ||||
| EN Logic High Voltage | VIH | VIN=5 V, IOUT=0.1 A | 1.1 | V | ||
| EN Logic Low Voltage | VIL | VIN=5 V, IOUT=0.1 A | 0.4 | V | ||
| #OCFLAG Output Logic Low Voltage |
VIL_FLAG |
VIN=5 V, ISINK=10 mA | 0.1 | 0.2 | V | |
| VIN=2.6 V, ISINK=10 mA | 0.15 | 0.3 | V | |||
| #OCFLAG Kutulutsa Logic
High Kutayikira Panopa |
IFLAG_LK | VIN=5 V, Yatsani | 0.1 | 1 | .A | |
| EN Kutulutsa Kutulutsa | Iombo | VEN = 0 V mpaka VIN | 1 | .A | ||
| Kukaniza Pansi pa
EN Pin |
REN_PD | VIN=2.6~5.5 V, VEN=Mkulu
TA= –40 mpaka 85oC |
14 | MΩ | ||
| Kutulutsa Voltage Chitetezo | ||||||
|
Kutuluka kwa OVP Lockout |
VOV_TRIP |
VOUT Rising Threshold | 5.5 | 5.8 | 6 |
V |
| VOUT Falling Threshold | 5.5 | |||||
| Kutulutsa kwa OVP Hysteresis | ZINTHU | 0.3 | V | |||
|
Nthawi Yoyankha OVP(3) |
kuOVP |
IOUT=0.5 A, CL=1 µF,
TA=25oC, VOUT kuchokera ku 5.5 V mpaka 6.0 V |
1 |
4 |
.s |
|
| Zowonjezera Chitetezo | ||||||
|
Malire Apano |
ILIM |
VIN=VEN=5 V, RSET=1000 Ω | 850 | 1000 | 1150 |
mA |
| VIN=VEN=5 V, RSET=500 Ω | 1700 | 2000 | 2300 | |||
|
Pansi-Voltage Kutseka |
VUVLO |
Kuwonjezeka kwa VIN | 2.4 |
V |
||
| VIN Kuchepa | 2.2 | |||||
| UVLO Hysteresis | VUVLO_HYS | 200 | mV | |||
| RCB Protection Trip Point | VT_RCB | VOUT - VIN | 50 | mV | ||
| Parameter | Chizindikiro | Mkhalidwe | Min. | Lembani. | Max. | Chigawo |
| Kutulutsidwa kwa Chitetezo cha RCB
Ulendo Wapaulendo |
VR_RCB | VIN - VOUT | 50 | mV | ||
| RCB Hysteresis | VRCB_HYS | 100 | mV | |||
| Mayankho Okhazikika a RCB
Nthawi(3) |
tRCB | VIN=5 V, VEN=Mkulu/Yotsika | 2 | .s | ||
| RCB Yamakono | Mtengo wa IRCB | VEN=0 V, VOUT=5.5 V | 7 | .A | ||
| Nthawi Yovuta Kwambiri Yoyankha(3) |
THHOCP |
Zochepa Pakalipano
Chikhalidwe, IOUT ≥ ILIM, VOUT=0 V |
2 |
.s |
||
| Nthawi Yowonjezera Yapano(3) |
kuOCP |
Zochepa Pakalipano
Chikhalidwe, IOUT ≥ ILIM, VOUT ≤ VIN |
25 |
.s |
||
| Mbendera Yatsopano
Nthawi Yoyankha |
kuOC_FLAG | Pamene Zowonjezereka Zikuchitika
ku mbendera Kukokera PASI |
8 | ms | ||
|
Kutsekedwa kwa Thermal |
TSD |
Shutdown Threshold | 150 |
oC |
||
| Bwererani kuchokera ku Shutdown | 130 | |||||
| Hysteresis | 20 | |||||
| Yatsani Kuchedwa | TDON |
VIN=5 V, RL=100 Ω, CL=1 uF RSET=2000 Ω, TA=25oC |
0.8 |
ms |
||
| VOUT Rise Time | TR | 0.3 | ||||
| Nthawi Yoyatsa | TON | 1.1 | ||||
| Kuchedwa Kuzimitsa | TDOFF | 10 |
.s |
|||
| VOUT Nthawi Yakugwa | TF | 270 | ||||
| Nthawi Yozimitsa | TOFF | 280 | ||||
| Yatsani Kuchedwa | TDON |
VIN=5 V, RL=3.8 Ω, CL=10 uF RSET=600 Ω, TA=-40 mpaka 85oC |
0.8 |
ms |
||
| VOUT Rise Time | TR | 0.5 | ||||
| Nthawi Yoyatsa | TON | 1.3 | ||||
| Kuchedwa Kuzimitsa | TDOFF | 10 |
.s |
|||
| VOUT Nthawi Yakugwa | TF | 230 | ||||
| Nthawi Yozimitsa | TOFF | 240 |
Parameter iyi imatsimikiziridwa ndi mapangidwe.
Chithunzi cha Nthawi 
Makhalidwe abwino
TA = 25oC, VIN = VEN = 5 V, CIN = 1 μF, COUT = 1 μF, pokhapokha ngati tawonetsa. 
Zambiri Zofunsira
Lowetsani Capacitor
Kuchepetsa voltagE dontho pa zolowetsa zomwe zimayambitsidwa ndi mafunde osakhalitsa othamanga pomwe chosinthira chiyatsa, capacitor iyenera kuyikidwa pakati pa VIN ndi GND. Makhalidwe apamwamba a CIN angagwiritsidwe ntchito kuti achepetse voltagndikutsitsa mapulogalamu apamwamba kwambiri.
Kutulutsa capacitor
Capacitor yotulutsa iyenera kuyikidwa pakati pa VOUT ndi pini ya GND. The capacitor imalepheretsa parasitic board inductance kuti isakakamize VOUT pansi pa GND pomwe chosinthira chayatsidwa. Capacitor imalepheretsanso reverse inrush current kuchokera ku voltage spike yomwe ingawononge chipangizocho ngati VOUT yaifupi.
Kufotokozera Zolakwa
Mukazindikira zaposachedwa, #OC_FLAG imawonetsa cholakwikacho poyambitsa LOW.
Kuchepetsa Panopa
Malire omwe alipo panopa amatsimikizira kuti panopa kupyolera mu kusinthana sikudutsa mtengo wokhazikika, pamene osachepetsa mtengo wochepa. Pakalipano pomwe malire a gawolo amasinthidwa kudzera pakusankhidwa kwa chopinga chakunja cholumikizidwa ndi pini ya ISET. Zambiri posankha resistor zikupezeka mu gawo ili pansipa. Chipangizocho chimagwira ntchito ngati gwero lanthawi zonse pamene katunduyo amakoka kwambiri kuposa mtengo wapamwamba womwe umayikidwa ndi chipangizocho mpaka kutsekedwa kwa kutentha kukuchitika. Chipangizocho chimachira ngati kutentha kwa kufa kutsika pansi pa khomo.
Pansi-Voltage Kutseka
The Under-Voltage Lockout (UVLO) amazimitsa chosinthira ngati voltage imagwera pansi pa malo otsekera. Ndi pini ya EN yatsegulidwa, cholowetsa voltage kukwera pamwamba pa UVLO kumatulutsa kutsekeka ndikupangitsa kusintha.
Kutsekereza Kowona Kwam'mbuyo-Kwakanthawi
Chowonadi chotsekereza chotchinga chapano chimateteza gwero lolowera kutsutsana ndi kutuluka kwaposachedwa kupita ku zolowetsa mosasamala kanthu kuti chosinthira chayatsidwa kapena ayi.
Kutsekedwa kwa Thermal
The matenthedwe shutdown amateteza kufa kuchokera mkati kapena kunja kwaiye kutentha kwambiri. Pakutentha kwambiri, chosinthira chimazimitsidwa. Kusinthako kumangoyatsanso ngati kutentha kwa kufa kumatsika pansi pa kutentha kwapakati.
Kukhazikitsa Malire Amakono
Malire apano amayikidwa ndi chopinga chakunja cholumikizidwa pakati pa ISET ndi GND pini.
Malire apano amawerengedwa motere: 
Kulekerera kwa resistor kwa 1% kapena kuchepera kumalimbikitsidwa
Table 6 Zochunira Malire Apano ndi RSET
|
RKHALANIΩ |
Min. Panopa
Malire (mA) |
Lembani. Panopa
Malire (mA) |
Max. Panopa
Malire (mA) |
| 500 | 1700 | 2000 | 2300 |
| 571 | 1490 | 1750 | 2010 |
| 667 | 1275 | 1500 | 1725 |
| 800 | 1065 | 1250 | 1435 |
| 1000 | 850 | 1000 | 1150 |
| 1111 | 750 | 900 | 1050 |
| 1250 | 650 | 800 | 950 |
| 1429 | 550 | 700 | 850 |
| 1667 | 450 | 600 | 750 |
| 2000 | 350 | 500 | 650 |
Zindikirani: Makhalidwe a tebulo amakhazikitsidwa pa 1% kulolerana resistors.
Kalozera wa Kamangidwe
Kuti zigwire bwino ntchito, zizindikiro zonse ziyenera kukhala zazifupi momwe zingathere. Kuti zikhale zogwira mtima kwambiri, zolowetsa ndi zotulutsa zimayenera kuyikidwa pafupi ndi chipangizocho kuti muchepetse mphamvu yomwe parasitic trace inductance ingakhale nayo pakugwira ntchito kwanthawi yayitali komanso kwakanthawi kochepa. Kugwiritsa ntchito njira zambiri za VIN, VOUT, GND kumathandizira kuchepetsa mphamvu yamagetsi ya parasitic pamodzi ndi vuto la kutentha kwapakati.
Makulidwe a Phukusi 
|
Chizindikiro |
Miyeso mu Mamilimita | ||
| Min. | Lembani. | Max. | |
| A | 0.54 | 0.58 | 0.63 |
| A1 | 0.18 | 0.20 | 0.22 |
| A2 | 0.36 | 0.38 | 0.41 |
| A3 | Chithunzi cha 0.025 | ||
| D | 1.19 | 1.22 | 1.25 |
| E | 1.19 | 1.22 | 1.25 |
| b | 0.24 | 0.26 | 0.28 |
| e | Mtengo wa 0.40 BSC | ||
Zambiri za Tape ndi Reel 
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OMNIVISION WS4694C Sensor ya Zithunzi [pdf] Buku Logwiritsa Ntchito Sensor ya Zithunzi, Chithunzi, Sensor, WS4694C |
