OMNIVISION WS4694C Sensor sa Litšoantšo 
Litlhaloso
WS4694C ke RON e nyane, e tlase, sesebelisoa se le seng se nang le sekhahla se laoloang. Sesebediswa se sebetsa ho feta bophahamo ba modumotage fapaneng ea 2.6 V ho 5.5 V. Sesebelisoa se tšehetsa moeli oa hona joale ho tloha 0.05 A ho 2 A.
Nako e laoloang ea ho phahama ha sesebelisoa e fokotsa haholo matla a ho phalla a bakoang ke matla a mangata a mangata, kahoo a fokotsa kapa a felisa ho theoha ha phepelo ea motlakase. WS4694C e na le ts'ebetso ea 'Nete ea Reverse-Current Blocking (TRCB) e thibelang morao-rao o sa batleheng ho tloha ho VOUT ho ea ho VIN nakong ea ON le OFF. Sesebediswa sa boholo bo nyane le se tlase sa RON se etselitsoe lits'ebetso tse tsamaeang le betri tse haelloang ke sebaka. Kenyelletso e pharaletseng voltagE range of switch e etsa hore e be tharollo e fapaneng bakeng sa mefuta e mengata e fapanengtage rails.
WS4694C e fumaneha ka har'a sephutheloana sa CSP-9L. Lihlahisoa tse tloaelehileng ha li na Pb ebile ha li na Halogen.
Likaroloana
- Keletso Voltage Range: 2.6 V ~ 5.5 V
- Boemo bo Felletseng ho VOUT: 28 V
- Boholo ba Sephetho sa hajoale: 2.0 A
- Tekanyetso ea Hona Joale e Fetohang: 0.05 A ~ 2.0 A
1 A ~2.0 A ka 15% Ho nepahala - Thibelo ea 'Nete ea Reverse-Current (TRCB)
- Tlas'a Voltage Lockout le Thermal Shutdown
- CSP-9L
Lintlha tsa Odara
Lethathamo la 1
| Sesebelisoa | Sephutheloana | Ho tsamaisa ka sekepe |
| WS4694C-9/TR | CSP-9L | 3000/Reel&Tape |
Lisebelisoa
- Lifono tse bohlale, li-PC tsa Letlapa
- Storage, DSLRs, le lisebelisoa tse ling tse nkehang habobebe
Lintlha tsa Pin 
Lethathamo la 2
| Pin | Letšoao | Tlhaloso |
| A3, B3 | TSOA | Phini ea tlhahiso |
| A1, B1 | IN | Kenya Pin |
| A2, B2 | GND | Fatše |
| C3 | EN | ON / OFF Keno ea Taolo: E sebetsang HIGH |
| C2 | ISET | Kenyelletso ea Hona joale ea Limit Set: Mohanyetsi ho tloha ho ISET ho ea fatše o theha
moeli oa hona joale bakeng sa switjha. |
|
C1 |
#OCFLAG |
Fault Output: Sehlahisoa se sebetsang se LOW, se bulehileng se bonts'ang keno e fetang ea hajoale. Ho hlokahala sehanyetsi sa kantle sa ho hula VDD. |
Setšoantšo se Thibeloang 
Tšebeliso e Tloaelehileng 
Feletseng Maximum Ratings
Tsena ke lintlha tsa khatello ea maikutlo feela. Mathata a fetang tekanyo e boletsoeng ho Lethathamo la 3 a ka baka tšenyo e kholo sesebelisoa. Ts'ebetso ea ts'ebetso ea sesebelisoa maemong a mang ho feta a thathamisitsoeng ho tse boletsoeng ha e bolele. Ho pepesehela maemo a feteletseng nako e telele ho ka ama ts'epehi ea sesebelisoa.
Lethathamo la 3
| Paramethara | Letšoao | Min. | Max. | Yuniti |
| VOUT ho GND, VOUT ho VIN | TSOA | -0.3 | 28 | V |
| Lintlha tse ling ho GND | IN, EN, ISET, #OCFLAG | -0.3 | 6 | V |
| Maximum Continuous Switch Current（1） |
HEI |
2.3 |
A |
|
| Mocheso oa Operating Junction | TJ | -40 | 150 | oC |
| Storage Mocheso Range | TSTG | -65 | 150 | oC |
| Mocheso o ka pele | TL | 260 | oC | |
|
Litekanyetso tsa ESD |
HBM | 5 | kV | |
| CDM | 2 | kV | ||
| Phello ea Moea (VIN, VOUT ho ea ho GND) | 15 | kV | ||
| Khokahano ea Ts'ebetso (VIN, VOUT ho ea ho GND) | 8 | kV | ||
Maximum Junction Themperature = 85°C
Khothalletsa Litekanyetso tsa Ts'ebetso
Tafole e latelang e hlalosa maemo a ts'ebetso ea 'nete ea sesebelisoa. Maemo a khothaletsoang a ts'ebetso a hlalositsoe ho netefatsa ts'ebetso e nepahetseng ho lintlha tsa database.
Lethathamo la 4
| Paramethara | Letšoao | Min. | Max. | Yuniti |
| Phepelo Voltage | VIN | 2.6 | 5.5 | V |
| Lithako tse ling | EN, ISET, #OCFLAG | 2.5 | 5.5 | V |
| Mocheso oa Mocheso o Tletseng | TA | -40 | 85 | oC |
| Thermal Resistance, RθJA (CSP-9L)（2） | RθJA | 110 | OC / W. | |
Bokaholimo bo behiloe holim'a Boto ea FR-4 e sebelisang 2 oz, sebaka sa lisekoere tsa lisekoere tsa Cu, boholo ba boto ea PCB 1 * 1.5 square inches.
Litšobotsi tsa Motlakase
TA = -40 ho + 85 ° C, VIN = 2.6 ho 5.5 V, Litekanyetso tse tloaelehileng li ho VIN = 5 V le TA = 25oC, ntle le haeba ho boletsoe ka tsela e 'ngoe.
Lethathamo la 5
| Paramethara | Letšoao | Boemo | Min. | Tlanya. | Max. | Yuniti |
| Ts'ebetso ea Motheo | ||||||
| Keletso Voltage | VIN | 2.6 | 5.5 | V | ||
| Quiscent Current | IQ | VIN= VEN, VOUT=Bula,
TA=25oC |
80 | 150 | µA | |
| Koala hona joale | ISD | VIN=5.5 V, VOUT=0 V,
VEN=GND |
0.1 | µA | ||
| Off Supply Current | IQ(OFF) | VEN=GND, VOUT=Bula | 1 | µA | ||
|
Ho Khanyetso |
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 Output Logic
Phahameng e Phahameng ea Hona Joale |
IFLAG_LK | VIN=5 V, Bulela | 0.1 | 1 | µA | |
| EN Input Leakage | ION | VEN=0 V ho isa ho VIN | 1 | µA | ||
| Khanyetso ea ho hula ka tlase ho
EN Pin |
REN_PD | VIN=2.6~5.5 V, VEN=Phahameng
TA= –40 ho isa ho 85oC |
14 | MΩ | ||
| Bo-Voltage Tshireletso | ||||||
|
Sephetho sa OVP Lockout |
VOV_TRIP |
TLHOKOMELISO Ho Phahamisa Moepa | 5.5 | 5.8 | 6 |
V |
| VOUT Falling Threshold | 5.5 | |||||
| Sephetho sa OVP Hysteresis | LIEKETSENG | 0.3 | V | |||
|
Nako ea Karabelo ea OVP(3) |
tOVP |
IOUT=0.5 A, CL=1 µF,
TA=25oC, VOUT ho tloha ho 5.5 V ho ea 6.0 V |
1 |
4 |
µs |
|
| Fetileng-Current Tshireletso | ||||||
|
Moeli oa Hona Joale |
ILIM |
VIN=VEN=5 V, RSET=1000 Ω | 850 | 1000 | 1150 |
mA |
| VIN=VEN=5 V, RSET=500 Ω | 1700 | 2000 | 2300 | |||
|
Tlas'a VoltagHo koala |
VUVLO |
VIN ea eketseha | 2.4 |
V |
||
| VIN e ea fokotseha | 2.2 | |||||
| UVLO Hysteresis | VUVLO_HYS | 200 | mV | |||
| Ntlha ea Leeto la Tšireletso ea RCB | VT_RCB | LITLHAKISO - VIN | 50 | mV | ||
| Paramethara | Letšoao | Boemo | Min. | Tlanya. | Max. | Yuniti |
| Phatlalatso ea Tšireletso ea RCB
Ntlha ea Leeto |
VR_RCB | VIN - ETSA | 50 | mV | ||
| RCB Hysteresis | VRCB_HYS | 100 | mV | |||
| Karabelo ea kamehla ea RCB
Nako(3) |
tRCB | VIN=5 V, VEN=Phahameng/ Tlase | 2 | µs | ||
| RCB ea Hona joale | IRCB | VEN=0 V, VOUT=5.5 V | 7 | µA | ||
| Nako ea Karabelo e Thata Hajoale(3) |
THOCP |
E Itekanetse Hajoale
Boemo, IOUT ≥ ILIM, VOUT=0 V |
2 |
µs |
||
| Nako ea Karabelo e Fetileng(3) |
hoOCP |
E Itekanetse Hajoale
Boemo, IOUT ≥ ILIM, VOUT ≤ VIN |
25 |
µs |
||
| Folakha ea Hona Joale
Nako ea Karabelo |
hoOC_FLAG | Ha Nako e Feteletseng e Etsahala
ho Folakha Ho hulela TLASE |
8 | ms | ||
|
Thermal Shutdown |
TSD |
Thibelo ea ho koala | 150 |
oC |
||
| Khutla ho tloha ho Shutdown | 130 | |||||
| Hysteresis | 20 | |||||
| Ho lieha ho bulela | TDON |
VIN=5 V, RL=100 Ω, CL=1 uF RSET=2000 Ω, TA=25oC |
0.8 |
ms |
||
| VOUT Phahamisa Nako | TR | 0.3 | ||||
| Nako ea ho Bulela | TONANA | 1.1 | ||||
| Ho lieha ho tima | TLHOKOMELO | 10 |
µs |
|||
| VOUT Nako ea hoetla | TF | 270 | ||||
| Nako ea ho tima | TLHOKOMELO | 280 | ||||
| Ho lieha ho bulela | TDON |
VIN=5 V, RL=3.8 Ω, CL=10 uF RSET=600 Ω, TA=-40 ho isa ho 85oC |
0.8 |
ms |
||
| VOUT Phahamisa Nako | TR | 0.5 | ||||
| Nako ea ho Bulela | TONANA | 1.3 | ||||
| Ho lieha ho tima | TLHOKOMELO | 10 |
µs |
|||
| VOUT Nako ea hoetla | TF | 230 | ||||
| Nako ea ho tima | TLHOKOMELO | 240 |
Parameter ena e tiisitsoe ke moralo.
Setšoantšo sa Nako 
Litšobotsi tse tloaelehileng
TA = 25oC, VIN = VEN = 5 V, CIN = 1 μF, COUT = 1 μF, ntle le haeba ho boletsoe ka tsela e 'ngoe. 
Boitsebiso ba Kopo
Kenya Capacitor
Ho fokotsa matlatagE theohe holim'a phepelo ea ho kenya e bakoang ke maqhubu a nakoana a potlakileng ha sesebelisoa se bulela, capacitor e hloka ho beoa lipakeng tsa VIN le GND. Litekanyetso tse phahameng tsa CIN li ka sebelisoa ho fokotsa matlatage oela lits'ebetsong tsa morao-rao tse phahameng.
Capacitor ea tlhahiso
Capacitor ea tlhahiso e hloka ho behoa lipakeng tsa VOUT le phini ea GND. The capacitor thibela parasitic boto inductance ho tloha qobella VOUT ka tlase ho GND ha fapoha butle. The capacitor e boetse e thibela reverse inrush current ho tloha voltage spike e ka senyang sesebelisoa tabeng ea VOUT e khutšoanyane.
Tlaleho ea Phoso
Ha ho sibolloa ho fetelletseng hona joale, #OC_FLAG e bontša phoso ka ho kenya LOW.
Moeli oa Hona Joale
Moeli oa hona joale o tiisa hore hona joale ka ho fetola ha o fetise tekanyo e phahameng e behiloeng, ha e ntse e sa lekanye palo ea bonyane. Hona joale moo moeli oa karolo o ka fetoloang ka khetho ea mohanyetsi oa kantle o hokahaneng le phini ea ISET. Lintlha tsa ho khetha resistor li fumaneha karolong e ka tlase. Sesebelisoa se sebetsa e le mohloli o sa feleng ha mojaro o hula ho feta boleng bo phahameng bo behiloeng ke sesebelisoa ho fihlela ho tima mocheso oa mocheso. Sesebelisoa se hlaphoheloa haeba mocheso oa mocheso o theoha ka tlase ho monyako.
Tlas'a VoltagHo koala
The Under-Voltage Lockout (UVLO) e tima switch haeba phallo e le matlatage theohela ka tlase ho moeli oa ho koala. Ha phini ea EN e kentsoe tšebetsong, tlhahiso ea voltagho phahama ka holim'a monyako oa UVLO ho lokolla senotlolo mme ho nolofalletsa switch.
Thibelo ea 'Nete ea Reverse-Hona joale
Sebopeho sa 'nete sa ho thibela morao-rao se sireletsa mohloli oa ho kenya letsoho khahlanong le phallo ea hona joale ho tloha ho tlhahiso ho ea ho ho kenya ho sa tsotellehe hore na mochine oa mojaro o teng kapa che.
Thermal Shutdown
The mogote shutdown sireletsa shoa ho tloha ka hare kapa ka ntle hlahisoang ke mocheso o feteletseng. Nakong ea boemo ba mocheso o feteletseng, sesebelisoa se tima. The fapoha ka tsela e iketsang bulela hape haeba thempereichara ea die e theoha ka tlase ho mocheso monyako.
Ho beha Meeli ea Hajoale
Moeli oa hona joale o behiloe ka sehanyetsi sa kantle se hokahaneng pakeng tsa ISET le GND pins.
Moeli oa hajoale o baloa joalo ka tse latelang: 
Mamello ea resistor ea 1% kapa ka tlase e khothaletsoa
Lethathamo la 6 Litlhophiso tsa Moeli oa Hona Joale ka RSET
|
RHLOKOMELAΩ |
Min. Hona joale
Moeli (mA) |
Tlanya. Hona joale
Moeli (mA) |
Max. Hona joale
Moeli (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 |
Hlokomela: Litekanyetso tsa litafole li ipapisitse le 1% ea bahanyetsi ba mamello.
Tataiso ea moralo
Bakeng sa ts'ebetso e ntle, mesaletsa eohle e tlameha ho ba e khuts'oane ka hohle kamoo ho ka khonehang. E le hore e atlehe ka ho fetisisa, li-capacitor tsa ho kenya le ho hlahisa li hloka ho behoa haufi le sesebelisoa ho fokotsa phello eo parasitic trace inductance e ka bang le eona ts'ebetsong e tloaelehileng le ea nakoana. Ho sebelisa mesaletsa e mengata ea VIN, VOUT, GND ho thusa ho fokotsa litlamorao tsa motlakase oa parasitic hammoho le "case-to-ambient impedance" ea mocheso.
Litekanyo tsa kemiso ea sephutheloana 
|
Letšoao |
Litekanyo ka limilimithara | ||
| Min. | Tlanya. | Max. | |
| A | 0.54 | 0.58 | 0.63 |
| A1 | 0.18 | 0.20 | 0.22 |
| A2 | 0.36 | 0.38 | 0.41 |
| A3 | 0.025 Ref. | ||
| D | 1.19 | 1.22 | 1.25 |
| E | 1.19 | 1.22 | 1.25 |
| b | 0.24 | 0.26 | 0.28 |
| e | 0.40 BSC | ||
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Litokomane / Lisebelisoa
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OMNIVISION WS4694C Sensor sa Litšoantšo [pdf] Bukana ea Mosebelisi Sensor sa setšoantšo, Setšoantšo, Sensor, WS4694C |
