19-3880; Rev 2; 1/10
ৰۇ
భᄋຶ
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
``````````````````````````````````` ᄂቶ
NBY27912B0C0NBY27913B0Cဵೡࣞ)IC* MFEདࣅ఼
ᒜJDLjด۞ݝ೫ଐጙৈၒྜྷपᆍMFEདࣅჅኊࡼ
ཝ࢟ݝവLjးᄰᑍීਜ਼መာ።ăNBY27912ऻޟး
ᄰၒྜྷ)96WBDᒗ376WBDᑳഗ࢟ኹၒྜྷ*! MFEདࣅLj
NBY27913း᎖ࢅၒྜྷ࢟ኹ)21/9WEDᒗ35WED*! MFEད
ࣅă
♦ းcvdlĂcpptuĂgmzcbdlĂTFQJDਜ਼ᅠແ
ኊገறමࢯஂMFE࢟ഗဟLjభಽຢࡼᇙތहࡍጲૺ
றࣞᆐ2&ࡼᓰăᄰਭࢅຫQXNೡࣞࢯஂభဣሚ୷ࡼ
ೡࣞࢯஂपᆍă
♦ ดࡒݝᎌᇙތहࡍਜ਼2&றࣞࡼᓰLjభဣሚறමࡼ
MFE࢟ഗࢯஂ
NBY279120NBY27913ᎌၒྜྷ་ኹჄࢾ)VWMP*ᄂቶLjభ
ᒙၒྜྷࣅ࢟ኹLj݀భཀྵۣᏴ࢟Ꮞࢰൢဟᑵޟᔫă
NBY27912ᎌ୷ᒣૄ࢟ኹࡼดݝᔈ་ኹჄࢾ࢟വLj
࠭ऎ଼છ೫ಭሣါMFEདࣅࡼଐăNBY27913ดݝ
ᎌᑚৈᔈ࢟വLjభᒇᎅ,23W࢟ኹᄋມᒙ࢟Ꮞă
♦ 373lI{ ±23&ࡼৼࢾఎਈຫൈ
ดݝᆈࢯࡼ373lI{ৼࢾఎਈຫൈᏤᎁછኡᐋࠟቶᏄୈ
ਜ਼݆ᏄୈLj࠭ऎဣሚஜĂቶଥ ࡼ܈MFE དࣅă
NBY27912B0NBY27913Bࡼᔢࡍᐴహ܈ᆐ61&LjNBY27912C0
NBY27913Cࡼᔢࡍᐴహ܈ᆐ86&ăᑚቋୈݧ9୭
μNBY® ॖᓤLjభᔫᏴ.51°Dᒗ,96°Dᆨࣞपᆍă
♦ ᎌ୷ᒣૄ࢟ኹࡼดݝᔈVWMP! )NBY27912*
♦ ࡉ61Xৎࡼၒ߲ൈ
♦ ᄰಭሣၒྜྷ࢟ኹपᆍǖ
ᑳഗઁࡼ96WBDᒗ376WBD! )NBY27912*
♦ JO୭ᒇᎅ21/9WEDᒗ35WEDၒྜྷདࣅ)NBY27913*
♦ QXNሣቶೡࣞࢯஂ
♦ ེਈࣥ
♦ ၫᔊྟࣅ
♦ భ߈ܠၒྜྷࣅ࢟ኹ
♦ 56μB! )࢜ቯᒋ*ࣅ࢟Ꮞ࢟ഗLj2/5nB! )࢜ቯᒋ*
ᔫ࢟Ꮞ࢟ഗ
♦ 61&! )NBY27912B0NBY27913B*86&
)NBY27912C0NBY27913C*ᔢࡍᐴహ܈
♦ ݧᆈቯ9୭μNBYॖᓤ
``````````````````````````````````` ።
ಭሣါED.ED! MFEདࣅ
ጓᎧጓᑍී
SHC۳Lj᎖MDE! UWਜ਼
ପ၁
ᓤြᎧᓔᑍී
``````````````````````````````` ࢾ৪ቧᇦ
TEMP
RANGE
PART
μNBYဵNbyjn! Joufhsbufe! Qspevdut-! Jod/ࡼᓖݿܪă
PINPACKAGE
MAX16801AEUA+
-40°C to +85°C
MAX16801BEUA+
-40°C to +85°C
8 μMAX
8 μMAX
MAX16802AEUA+
-40°C to +85°C
8 μMAX
MAX16802BEUA+
-40°C to +85°C
8 μMAX
, ܭာᇄॖᓤă
`````````````````````````````````````````````````````````````````````` ࢜ቯᔫ࢟വ
10.8VDC TO 24VDC
ENABLE
UVLO/EN
IN
C3
L1
DIM/FB
VCC
PWM
LEDs
D1
MAX16802B
COMP
CS
Q1
NDRV
GND
C1
C2
R1
GND
வসǖNBY279120NBY27913ଐᔫ᎖ኹሆLjᓖፀቃቦݷᔫă
________________________________________________________________ Maxim Integrated Products
1
۾ᆪဵ፞ᆪၫᓾ೯ࡼፉᆪLjᆪᒦభถࡀᏴडፉࡼݙᓰཀྵࡇᇙăྙኊጙݛཀྵཱྀLj༿Ᏼิࡼଐᒦݬఠ፞ᆪᓾ೯ă
ᎌਈଥৃĂૡૺࢿ৪ቧᇦLj༿ೊNbyjnᒴሾ၉ᒦቦǖ21911!963!235:!)۱ᒦਪཌ*Lj21911!263!235:!)ฉᒦਪཌ*Lj
षᆰNbyjnࡼᒦᆪᆀᐶǖdijob/nbyjn.jd/dpnă
NBY27912B0C0NBY27913B0C
``````````````````````````````````` গၤ
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
ABSOLUTE MAXIMUM RATINGS
IN to GND..........................................................................-0.3V to +30V
VCC to GND ......................................................................-0.3V to +13V
DIM/FB, COMP, UVLO/EN, CS to GND....................-0.3V to +6V
NDRV to GND.............................................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
8-Pin μMAX (derate 4.5mW/°C above +70°C) ..............362mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = +12V (MAX16801: VIN must first be brought up to +23.6V for startup), 10nF bypass capacitors at IN and VCC, CNDRV = 0μF,
VUVLO/EN = +1.4V, VDIM/FB = +1.0V, COMP = unconnected, VCS = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
UNDERVOLTAGE LOCKOUT/STARTUP
Bootstrap UVLO Wake-Up Level
VSUVR
VIN rising (MAX16801 only)
19.68
21.6
23.60
V
Bootstrap UVLO Shutdown Level
VSUVF
VIN falling (MAX16801 only)
9.05
9.74
10.43
V
UVLO/EN Wake-Up Threshold
VULR2
UVLO/EN rising
1.188
1.28
1.371
V
UVLO/EN Shutdown Threshold
VULF2
UVLO/EN falling
1.168
1.23
1.291
UVLO/EN Input Current
IUVLO
TJ = +125°C
ISTART
VIN = +19V, for MAX16801 only when in
bootstrap UVLO
UVLO/EN Hysteresis
IN Supply Current In
Undervoltage Lockout
IN Voltage Range
UVLO/EN Propagation Delay
Bootstrap UVLO Propagation
Delay
VIN
V
25
nA
50
mV
45
10.8
tEXTR
UVLO/EN steps up from +1.1V to +1.4V
12
tEXTF
UVLO/EN steps down from +1.4V to +1.1V
1.8
tBUVR
VIN steps up from +9V to +24V
5
tBUVF
VIN steps down from +24V to +9V
1
VCCSP
VIN = +10.8V to +24V, sinking 1μA to 20mA
from VCC
90
μA
24
V
μs
μs
INTERNAL SUPPLY
VCC Regulator Set Point
IN Supply Current After Startup
IIN
Shutdown Supply Current
7
VIN = +24V
1.4
UVLO/EN = low
10.5
V
2.5
mA
90
μA
GATE DRIVER
Driver Output Impedance
Measured at NDRV sinking, 100mA
2
4
RON(HIGH) Measured at NDRV sourcing, 20mA
RON(LOW)
4
12
Driver Peak Sink Current
Driver Peak Source Current
Ω
1
A
0.65
A
PWM COMPARATOR
Comparator Offset Voltage
CS Input Bias Current
Comparator Propagation Delay
Minimum On-Time
2
VOPWM
ICS
tPWM
tON(MIN)
VCOMP - VCS
VCS = 0V
VCS = +0.1V
1.15
1.38
-2
1.70
V
+2
μA
60
ns
150
ns
_______________________________________________________________________________________
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
(VIN = +12V (MAX16801: VIN must first be brought up to +23.6V for startup), 10nF bypass capacitors at IN and VCC, CNDRV = 0μF,
VUVLO/EN = +1.4V, VDIM/FB = +1.0V, COMP = unconnected, VCS = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
262
291
320
mV
+2
μA
CURRENT-SENSE COMPARATOR
Current-Sense Trip Threshold
VCS
CS Input Bias Current
ICS
Propagation Delay From
Comparator Input to NDRV
Switching Frequency
Maximum Duty Cycle
tPWM
VCS = 0V
50mV overdrive
fSW
DMAX
-2
60
230
ns
262
290
MAX1680_A
50
50.5
MAX1680_B
75
76
26.1
29.0
kHz
%
IN CLAMP VOLTAGE
IN Clamp Voltage
VINC
2mA sink current, MAX16801 only (Note 3)
24.1
V
ERROR AMPLIFIER
Voltage Gain
RLOAD = 100kΩ
80
dB
Unity-Gain Bandwidth
RLOAD = 100kΩ, CLOAD = 200pF
2
MHz
Phase Margin
RLOAD = 100kΩ, CLOAD = 200pF
65
DIM/FB Input Offset Voltage
Degrees
3
COMP Clamp Voltage
High
2.2
3.5
Low
0.4
1.1
mV
V
Source Current
0.5
mA
Sink Current
0.5
mA
Reference Voltage
VREF
(Note 2)
1.218
1.230
Input Bias Current
COMP Short-Circuit Current
8
1.242
V
50
nA
mA
THERMAL SHUTDOWN
Thermal-Shutdown Temperature
130
°C
Thermal Hysteresis
25
°C
15,872
Clock
cycles
Reference Voltage Steps During
Soft-Start
31
Steps
Reference Voltage Step
40
mV
DIGITAL SOFT-START
Soft-Start Duration
Note 1: All devices are 100% tested at TA = +85°C. All limits over temperature are guaranteed by characterization.
Note 2: VREF is measured with DIM/FB connected to the COMP pin (see the Functional Diagram).
Note 3: The MAX16801 is intended for use in universal input offline drivers. The internal clamp circuit is used to prevent the bootstrap capacitor (C1 in Figure 5) from charging to a voltage beyond the absolute maximum rating of the device when
UVLO/EN is low. The maximum current to IN (hence to clamp) when UVLO/EN is low (device in shutdown), must be externally limited to 2mA (max). Clamp currents higher than 2mA may result in clamp voltage higher than +30V, thus exceeding
the absolute maximum rating for IN. For the MAX16802, do not exceed the +24V maximum operating voltage of the device.
_______________________________________________________________________________________
3
NBY27912B0C0NBY27913B0C
ELECTRICAL CHARACTERISTICS (continued)
`````````````````````````````````````````````````````````````````````` ࢜ቯᔫᄂቶ
(VUVLO/EN = +1.4V, VDIM/FB = +1V, COMP = unconnected, VCS = 0V, TA = +25°C, unless otherwise noted.)
21.55
10.1
MAX16801 VIN FALLING
UVLO/EN WAKE-UP THRESHOLD
vs. TEMPERATURE
1.280
UVLO/EN RISING
1.275
MAX16801 toc03
MAX16801 VIN RISING
MAX16801 toc01
21.60
BOOTSTRAP UVLO SHUTDOWN LEVEL
vs. TEMPERATURE
MAX16801 toc02
BOOTSTRAP UVLO WAKE-UP LEVEL
vs. TEMPERATURE
10.0
21.45
UVLO/EN (V)
VIN (V)
VIN (V)
21.50
9.9
21.40
1.270
1.265
1.260
9.8
21.35
1.255
9.7
-20
0
20
40
60
80
1.250
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
UVLO/EN SHUTDOWN THRESHOLD
vs. TEMPERATURE
VIN SUPPLY CURRENT IN UNDERVOLTAGE
LOCKOUT vs. TEMPERATURE
VIN SUPPLY CURRENT AFTER STARTUP
vs. TEMPERATURE
UVLO/EN FALLING
52
51
50
1.25
1.5
MAX16801 toc05
1.30
MAX16801 toc04
-40
VIN = 19V
MAX16801 WHEN IN BOOTSTRAP UVLO
MAX16802 WHEN UVLO/EN IS LOW
VIN = 24V
MAX16801 toc06
21.30
1.4
1.20
48
IIN (mA)
ISTART (μA)
UVLO/EN (V)
49
47
1.3
46
45
1.15
1.2
44
43
-20
0
20
40
60
80
0
20
40
60
0
20
40
60
VCC REGULATOR SET POINT
vs. TEMPERATURE
CURRENT-SENSE THRESHOLD
vs. TEMPERATURE
VIN = 10.8V
8.8
8.7
10mA LOAD
VCC (V)
9.5
8.5
8.4
9.4
20mA LOAD
8.3
NDRV OUTPUT IS
SWITCHING
9.3
8.2
-20
0
20
40
TEMPERATURE (°C)
60
80
TOTAL NUMBER OF
DEVICES = 100
+3σ
305
80
300
295
MEAN
290
285
280
-3σ
275
8.1
9.2
310
CURRENT-SENSE THRESHOLD (mV)
MAX16801 toc07
8.9
MAX116801 toc08
VCC REGULATOR SET POINT
vs. TEMPERATURE
8.6
-40
-20
-40
80
TEMPERATURE (°C)
NDRV OUTPUT IS NOT
SWITCHING, VDIM/FB = 1.5V
9.6
-20
TEMPERATURE (°C)
VIN = 19V
NO LOAD
9.7
-40
TEMPERATURE (°C)
9.8
4
1.1
42
-40
270
-40
-20
0
20
40
TEMPERATURE (°C)
60
80
-40
-20
0
20
40
TEMPERATURE (°C)
_______________________________________________________________________________________
60
80
MAX16801 toc09
1.10
VCC (V)
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
SWITCHING FREQUENCY
vs. TEMPERATURE
15
10
5
260
255
250
-3σ
270
280
290
300
310
10
-20
0
20
40
60
80
230
240
250
260
270
280
SWITCHING FREQUENCY (kHz)
PROPAGATION DELAY FROM
CURRENT-SENSE COMPARATOR INPUT
TO NDRV vs. TEMPERATURE
UVLO/EN PROPAGATION DELAY
vs. TEMPERATURE
REFERENCE VOLTAGE
vs. TEMPERATURE
60
55
50
0
20
40
60
80
VIN = 12V
1.229
1.228
1.227
1.226
UVLO/EN FALLING
1.225
-40
-20
0
20
40
60
-40
80
-20
0
20
40
60
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT CURRENT
vs. INPUT VOLTAGE
INPUT CLAMP VOLTAGE
vs. TEMPERATURE
NDRV OUTPUT IMPEDANCE
vs. TEMPERATURE
9
8
7
6
5
4
27.0
IIN = 2mA
26.8
26.6
2.2
2.1
1.9
26.2
1.8
1.7
25.8
1.6
25.6
1.5
2
25.4
1.4
1
25.2
1.3
0
25.0
3
10.0 12.5 15.0 17.5 20.0 22.5 25.0 27.5 30.0
INPUT VOLTAGE (V)
VIN = 24V
SINKING 100mA
2.0
26.4
26.0
80
MAX16801 toc18
MAX16801 toc16
10
RON (Ω)
-20
INPUT CLAMP VOLTAGE (V)
-40
UVLO/EN RISING
REFERENCE VOLTAGE (V)
65
1.230
MAX16801 toc14
MAX16801 toc13
70
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
290
MAX16801 toc15
TEMPERATURE (°C)
UNDERVOLTAGE LOCKOUT DELAY (μs)
CURRENT-SENSE THRESHOLD (mV)
75
MAX16801 toc12
15
0
-40
320
20
5
240
260
tPWM (ns)
MEAN
245
0
INPUT CURRENT (mA)
265
TOTAL NUMBER OF
DEVICES = 200
25
PERCENTAGE OF UNITS (%)
20
270
30
MAX16801 toc17
PERCENTAGE OF UNITS (%)
25
TOTAL NUMBER OF
DEVICES = 100
+3σ
275
SWITCHING FREQUENCY
MAX16801 toc11
TOTAL NUMBER OF
DEVICES = 200
280
SWITCHING FREQUENCY (kHz)
30
MAX16801 toc10
CURRENT-SENSE THRESHOLD
1.2
-40
-20
0
20
40
TEMPERATURE (°C)
60
80
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
_______________________________________________________________________________________
5
NBY27912B0C0NBY27913B0C
``````````````````````````````````````````````````````````````````````````` ࢜ቯᔫᄂቶ)ኚ*
(VUVLO/EN = +1.4V, VDIM/FB = +1V, COMP = unconnected, VCS = 0V, TA = +25°C, unless otherwise noted.)
```````````````````````````````````````````````````````````````````````````` ࢜ቯᔫᄂቶ)ኚ*
(VUVLO/EN = +1.4V, VDIM/FB = +1V, COMP = unconnected, VCS = 0V, TA = +25°C, unless otherwise noted.)
ERROR-AMPLIFIER OPEN-LOOP GAIN
AND PHASE vs. FREQUENCY
NDRV OUTPUT IMPEDANCE
vs. TEMPERATURE
4.8
4.6
100
30
80
10
GAIN
60
4.4
GAIN (dB)
4.2
4.0
3.8
50
40
-10
-30
20
-50
0
-70
PHASE
-20
-90
3.6
-40
-110
3.4
-60
-130
3.2
-80
-150
3.0
-100
-40
-20
0
20
40
60
0.1
80
1
10
100
1k
PHASE (DEGREES)
VIN = 24V
SOURCING 20mA
MAX16801 toc20
120
MAX16801 toc19
5.0
RON (Ω)
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
-170
10k 100k 1M 10M 100M
FREQUENCY (Hz)
TEMPERATURE (°C)
`````````````````````````````````````````````````````````````````````````` ୭ႁී
୭
߂
1
UVLO/EN
2
DIM/FB
ࢅຫQXNೡࣞࢯஂၒྜྷ0ᇙތहࡍनሤၒྜྷ࣡ă
3
COMP
ᇙތहࡍၒ߲ăᏴறࣞMFE࢟ഗࢯஂ።ᒦLjޡݗᏄୈೌᏴEJN0GCਜ਼DPNQᒄମă
4
CS
ถ
ᅪݝభ߈ܠ་ኹჄࢾăVWMPᒙၒྜྷࣅ࢟ኹăVWMPೌᒗHOEభணᒏୈᔫă
࢟ഗঢ።ቧೌ࣡Lj᎖࢟ഗࢯஂăᒗଶഗ࢟ᔜ࣡ăభጲSD݆߹བྷ༄ዘࡼඇࠦă
5
GND
࢟Ꮞă
6
NDRV
ᅪݝoࡸNPTGFUᐜೌ࣡ă
7
VCC
8
IN
ᐜདࣅ࢟ᏎăดݝᎅJOଢ଼ኹࡻࡵăWDD ᎧHOEମጙᒑ21oGྏᒋৎࡼབྷẮ࢟ྏă
JD࢟ᏎăJOᎧHOEମጙᒑ21oGྏᒋৎࡼབྷẮ࢟ྏăᔈᔫෝါ)NBY27912*ሆLjభᏴၒྜྷ࢟Ꮞ
ਜ਼JOᒄମጙৈࣅ࢟ᔜăມᒙླྀᔝ࢟Ꮞೌᒗক࢛)ݬᅄ6*ă࣪᎖NBY27913LjJOᒇ,21/9Wᒗ,35W
࢟Ꮞă
``````````````````````````````` ሮᇼႁී
NBY279120NBY27913ᇹୈ᎖ೡࣞ)IC*! MFEࡼੱ
ഗདࣅLjးᄰᑍීਜ਼መာ።ăকᇹୈᓜᆐ
ಭਜ਼ऻಭ࢟വᅠແଐLjྙ cvdlĂcpptuĂgmzcbdl ਜ਼
TFQJDࢀLjᔫᏴೌኚऻೌኚෝါăఎਈຫൈᏴดݝᆈ
ࢯᆐ373lI{ৼࢾᒋLjభဣሚ࢟ഗෝါ఼ᒜăᎌ୷ᒣ
ૄ࢟ኹ)22/:W*ࡼᔈVWMP࢟വĂިࢅࣅ࢟ഗጲૺࢅ
6
ᔫ࢟ഗᄂቶLjభဣሚࡼᄰၒྜྷMFEདࣅăকᇹ
ୈ߹ดᒙᔈVWMPᅪLjથถᄰਭVWMP0FO୭࣪ၒྜྷ
ࣅ࢟ኹቲ߈ܠᒙăNBY27912ऻޟးᄰୣഗၒ
ྜྷ)96WBDᒗ376WBDᑳഗ࢟ኹၒྜྷ*དࣅăNBY27913ऻ
ޟးࢅၒྜྷ࢟ኹ)21/9WEDᒗ35WED*።ă
NBY279120NBY27913ᓆᒲ໐ପ၁ഗਭᅪݝNPTGFUࡼ࢟
ഗLj࠭ऎဣሚ࣪MFE࢟ഗࡼࢯஂă
_______________________________________________________________________________________
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
ࡩበຢஉᆨިਭ,241°D )࢜ቯᒋ*ဟLjดᒙࡼਈࣥ࢟വభ
ࣅۣઐถă
ྦኊገறමࢯஂMFE࢟ഗLjభಽຢᇙތहࡍጲૺற
ࣞᆐ2&ࡼᓰ)ᅄ:*ăᑚጙऄᅪनౣభࡍࡍଢ଼ࢅᎅ᎖ᇄᏎ
Ꮔୈܤછਜ਼ມތჅޘညࡼ፬ሰLj݀༦ᒑኊᔢࡼᅪᆍᏄ
ୈ૾భဣሚă
ሣቶೡࣞࢯஂဵᄰਭᏴDTࡼጙৈཇਜ਼ஂ࢛ဣሚࡼLj
ྙᅄ7ਜ਼ᅄ8Ⴥာă
ೡࣞࢯஂ
ࢅຫQXN )࢟ഗᐮ݆*ೡࣞࢯஂᐌᄰਭᏴୈࡼEJN0GC
୭ဗଝጙৈनሤ൝QXNቧဣሚ)ᅄ9*ăᑚᒬऱज
࣪᎖กቋገཇࢯஂೡࣞဟዏৃۣߒໍࡼܤݙ።ޝ
ጐ્ဵ၅ኡऱښăဵᄰਭ࣪ੱࢾ७ࣞࡼMFE࢟ഗቲ
ᐮ݆ဣሚࢯࡼă
ࢅຫQXNೡࣞࢯஂቧᒇౣྜྷEJN0GC୭భဣሚ
पᆍࡼೡࣞࢯஂă
᎖NBY27912ଐࡼMFEདࣅ࢟വݧጙৈᒋࣅ࢟
ᔜS2ᆐถ࢟ྏD2ߠ࢟)ᅄ6ᅄ:*ăᏴ߱ဪࣤLjߠ࢟
࢟ኹࢅ᎖ดݝᔈVWMPඡሢ࢟ኹLjୈሿࡼஸზ࢟ഗ
ஞᆐ56μB )࢜ቯᒋ*ăࢅࣅ࢟ഗਜ਼୷ᒣૄ࢟ኹࡼᔈ
VWMPభࡍࡍଢ଼ࢅS2ࡼLj૾ဵܣᏴᄰୣഗၒྜྷ࢟ኹ
ᆡ᎖࣡ဟጐ੪ቃă
NBY279120NBY27913ࡼມᒙ
ࡩܤኹࡀᏴဟLjᎅܤኹဣሚᔈ)ᅄ6*ăݧऻಭ
ါᅠແဟጐభᒇᎅMFEޘညມᒙ)ᅄ2*ă
R5
R1
R2
IN
AC
IN
BRIDGE
RECTIFIER
COMP
C1
C2
Q1
NDRV
VCC
GND
MAX16801B
CS
C3
DIM/FB
UVLO/EN
R3
R6
R4
L1
C4
TOTAL LED VOLTAGE:
11V TO 23V
D3
ᅄ2/! ᏴऻಭቯgmzcbdlདࣅᒦಽMFEᆐJDᄋມᒙ
_______________________________________________________________________________________
7
NBY27912B0C0NBY27913B0C
ࡩᔫᏴࡒᎌܤኹࡼᔈෝါဟ)ᅄ6*Ljক࢟വથభᄋ
ࡍࣶၫവ৺ᑇۣઐăࡩ߲ሚവ৺ᑇဟLjྯླྀᔝ
࢟ኹଢ଼ᒗ ,21W ጲሆLjᒘဧ VWMP ࢟വਈܕᅪݝ
NPTGFUࡼᐜདࣅቧăᑚ્ᒮቤ߿खጙࠨྟࣅਭ߈ă
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
VDC
R
VDC
Q
R
IN
IN
MAX16802A
D
(a)
D
MAX16802A
C
(b)
ᅄ3/! )b*࢟ᔜ.ฃऔਜ਼)c*ᄏ.ฃऔ.࢟ᔜມᒙ࢟വ
NBY27913భᒇᎅ21/9WEDᒗ35WEDၒྜྷ࢟ኹቲມᒙă
ಽ࢟ᔜ.ฃऔ)ᅄ3b*ᄏ.ฃऔ.࢟ᔜ
ມᒙ࢟വ)ᅄ3c*LjNBY27913ጐభᏴৎᒇഗၒྜྷ࢟
ኹࡼޝă
NBY279120NBY27913་ኹჄࢾ
NBY279120NBY27913ᎌጙৈၒྜྷ࢟ኹVWMP0FO୭ă
VWMPඡሢ࢟ኹᆐ,2/39WăᒑᎌᏴক୭࢟ኹࡍ᎖,2/39W
ઁ࢟വݣఎဪᔫăVWMP࢟വభဧDQXN୷܈ĂJMJN
୷܈Ăᑩጲૺၒ߲དࣅࠀ᎖ਈࣥᓨზLjጲି
࢟ഗሿ)ݬถౖᅄ*ăಽকVWMPถభᒙၒྜྷ
ࣅ࢟ኹăॊኹ࢟ᔜS3ਜ਼S4 )ᅄ6*ᔜᒋࡼଐႯါྙሆǖ
R3 ≅
VULR2 × VIN
500 × IUVLO (VIN − VULR2 )
ኡᐋS4ᔜᒋဟLj።ဧVWMP0FOၒྜྷມᒙ࢟ഗᏴS3ࡼኹ
ଢ଼ჅޘညࡼᇙތᔢࢅăW VMS3 > ,2/39WLjJ VWMP > 61oB
)ᔢࡍᒋ*LjWJO ဵ࢟Ꮞࣅဟࡼၒྜྷ࢟Ꮞ࢟ኹᒋă
V − VULR2
R2 = IN
× R3
VULR2
ᒦJVWMPဵVWMP0FO୭ࡼၒྜྷ࢟ഗLjWVMS3ဵVWMP0FO
ታඡሢă
8
NBY27912ᔈ་ኹჄࢾ
߹೫NBY279120NBY27913ᎌࡼᅪݝభ߈ܠVWMPᅪLj
NBY27912 થดᒙጙৈऄᅪࡼᔈ VWMPLjᏴଐኹ
MFEདࣅဟऻޟᎌ)ݬถౖᅄ*ăᑚዹᏤୈᏴ
߱ဪ࢟ဟᔈቲࣅăࡩ W JO ᎖ᔈ VWMP ඡሢ࢟ኹ
,34/7WဟLjNBY27912ఎဪࣅăࣅ໐ମLjVWMP࢟വ
ۣߒDQXN୷܈ĂJMJN୷܈Ăᑩጲૺၒ߲དࣅ
ࠀ᎖ਈࣥᓨზLjጲିቃ࢟ഗሿăጙࡡWJO ࡉࡵ,34/7WLj
VWMP࢟വࣅDQXN୷܈ĂJMJN୷܈ਜ਼ᑩLj݀
Ꮴၒ߲དࣅఎဪఎਈݷᔫăྙਫWJO ଢ଼ᒗ,:/8WጲሆLj
VWMP࢟വᐌਈࣥDQXN୷܈ĂJMJN୷܈Ăᑩጲ
ૺၒ߲དࣅLj࠭ऎဧNBY27912ऩૄᒗࣅෝါă
NBY27912ࣅᔫෝါ
ᏴಭါMFEདࣅ።ᒦLjWJO ནᔈܤኹࡼྯླྀᔝă
ऎLjࣅဟܤኹᒦᎌ࢟ถᄋăፐࠥLjኊገᄂࢾ
ࡼᔈਭ߈ăᅄ4ჅာᆐࣅဟJOਜ਼W DD ୭ࡼ࢟ኹă
ఎဪLjWJO ਜ਼WDD ᆐ1Wăဗଝ࢟Ꮞ࢟ኹᒄઁLjࣅ࢟ᔜ
S2D2ߠᒗ෭ৈᒦମ࢟ኹăࠥဟLjดݝᆮኹఎဪሶD3
ߠ࢟ )ݬᅄ6*ăᏴᎅS2ᄋࡼ࢟ഗࡩᒦLjNBY27912ஞ
56μBLjၒྜྷ࢟ഗᐌᆐD2ਜ਼D3ߠ࢟ăࡩWDD ࢟ኹத
႒ᆐ,:/6WဟLjᄫᒏ࣪D3ߠ࢟LjऎD2ೝ࣡ࡼ࢟ኹଖኚဍLj
ᒇࡵক࢟ྏࡼ࢟ኹࡉࡵታ࢟ኹ,34/7WᆐᒏăጙࡡWJO
ࡍ᎖ᔈVWMPඡሢ࢟ኹLjOESWఎဪఎਈNPTGFULj݀
_______________________________________________________________________________________
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
VCC
2V/div
MAX16801
VIN PIN
5V/div
NBY279120NBY27913ࡼྟࣅᄂቶభဧMFE࢟ഗᏴ၊఼
ෝါሆዘቓຸဍăࡩᅙಭVWMPᓨზઁఎဪྟࣅਭ߈ă
ଝᒗहࡍᄴሤஂ࢛ࡼ࢟ኹᏴ71ntࡼྟࣅဟମด࠭1ᒇ
ሣဍᒗ,2/34Wăᅄ5መာ೫1/6Bࡼ࢜ቯၒ߲࢟ഗᏴࣅ
ਭ߈ᒦࡼܤછ༽ౚăభᓖፀࡵMFE࢟ഗጲᄇऱါဍă
ᑚဵᎅ᎖ݧ೫ၫᔊྟࣅଆၣăᎧୈݙᄴࡼဵLj
ดᒙहࡍࡼᓰ࢟ኹဵྟࣅࡼăᑚᒬऱजถ୷ੑ
఼ᒜMFE࢟ഗă
0
oࡸNPTGFUఎਈདࣅ
100ms/div
ᅄ4/! ࡩNBY27912ࠀ᎖ᔈෝါሆLjࣅဟࡼWJO ਜ਼WDD
ሶऔླྀᔝਜ਼ྯླྀᔝࠅၒ࢟ถăྙਫྯླྀᔝၒ߲
ೂ࢟ኹ᎖,:/8W )ᔈVWMPࢅ࣡ඡሢ*Ljᐌࣅਭ߈ᅲ
߅Ljఎဪೌኚᔫă
ྙਫᏴࣅᅲ߅ᒄ༄W JO ଢ଼ᒗ,:/8WጲሆLjᐌୈऩૄᒗ
ࢅ࢟ഗVWMPᓨზăᑚᒬ༽ౚሆLjభᐐࡍD2ࡀᔗ৫ࡼ
࢟ถLjጲླྀྯܣᔝೂᔗ৫ࡼ࢟ኹă
OESW୭ถདࣅᅪݝoࡸNPTGFUăOESWၒ߲ᎅดݝ
ᆮኹ)WDD*࢟LjকดݝᆮኹᏴดݝᒙᆐᏖ,:/6Wă
࣪᎖ᄰၒྜྷ࢟ኹਜ਼ࡒᎌܤኹࡼ።ऎዔLjჅݧࡼ
NPTGFUܘኍถߌ၊࢟Ꮞ࢟ኹᔢဟࡼᒇഗ࢟ຳᎧܤኹ
߱ࡼन࢟ኹᒄਜ਼ă࣪᎖ࡍࣶၫݧऻೌኚgmzcbdlᅠແ
ࡼಭሣါ።ऎዔLjኊገऄࢾ࢟ኹᆐ711WࡼNPTGFUă
OESWถᏎ߲0ᇢྜྷިਭ761nB02111nBख़ᒋ࢟ഗăჅኡᐋ
ࡼNPTGFUޘညࡼࡴᄰႼਜ਼ఎਈႼܘኍᏴభ၊ࡼप
ᆍดă
ดݝᇙތहࡍ
NBY279120NBY27913۞౪ጙৈดݝᇙތहࡍLjభ
ऻޟறཀྵࢯஂMFE࢟ഗăಿྙLjᅄ6Ⴥာࡼऻಭါ࢟
ᏎăMFE࢟ഗࡼଐႯါྙሆǖ
V
ILED = REF
R7
100mA/div
ᒦWSFG > ,2/34Wăहࡍࡼᄴሤၒྜྷ࣡ᎅดೌݝᒗ
ၫᔊྟࣅ࢟വLjཀྵۣࣅਭ߈ᒦᓰ࢟ኹદൻဍLj
݀কᓰ࢟ኹဗଝᒗক୭ăᑚዹభ༓ᒜMFE࢟ഗᏴჅ
ᎌᓨზሆ࣒ږᑍᎾࢾࡼऱါᎌኔဍă
0
10ms/div
ᅄ5/! ߱ဪࣅဟࡼ࢜ቯྟࣅ࢟ഗ
_______________________________________________________________________________________
9
NBY27912B0C0NBY27913B0C
````````````````````````````````` ྟࣅ
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
``````````````````````````````` ።ቧᇦ
ଣ D2 ? D3LjᐌږጲሆါଐႯS2ǖ
× C1
V
IC1 = SUVR
(500ms)
NBY27912᎖ೡࣞMFEདࣅ
ࡼࣅဟମఠ
JOവ࢟ྏD2᎖Ᏼ࢟വধধታဟኸႥᄋᔫ࢟ഗ
)ᅄ6*ăD2ࡼߛࡁਜ਼ྯླྀᔝࡼೌऱါࢾ೫భ᎖
ࣅࡼᒲ໐ၫăࡍྏᒋD2ዓޠ೫ࣅဟମLjࡣถᏴ߱ဪ
ࣅࣤᄋৎࣶ࢟ጲᑽߒৎࣶࡼఎਈᒲ໐ăྙਫD2ࡼ
ྏᒋვቃLjกඐOESWᎌᔗ৫ࡼဟମఎਈNPTGFULj
࠭ऎݙถᏴྯླྀᔝೂᔗ৫ࡼ࢟ኹᆐୈᄋ࢟ᏎLj
ᒘဧWJO ଢ଼ᒗ,:/8WጲሆăୈऩૄVWMPᓨზऎݙถࣅă
D2ਜ਼D3ኊݧࢅቛധ࢟ྏă
ଣࢾᏴࢅ࢟Ꮞ࢟ኹᓨზሆ )96WBDၒྜྷࡼᄰಭሣါ።*
ಭሣါMFEདࣅ྆ገᆒߒቃ᎖611ntࡼࣅဟମLjࣅ
࢟ᔜS2።ถᄴဟᄋୈჅኊࡼᔢࡍࣅມᒙ࢟ഗ)ᔢތ
ᓨზሆ :1μ B*ਜ਼ᆐ D2ĂD3 ߠ࢟Ⴥኊࡼ࢟ഗăᏴᎾ໐ࡼ
611ntࣅဟମดLjവ࢟ྏD3ܘኍࡵ࢟ߠۻ,:/6WLjऎ
D2ܘኍߠ࢟ࡵ,35Wă
ᎅ᎖NBY27912ดݝᎌ71ntࡼྟࣅဟମLjD2ܘኍࡀᔗ
৫ࡼ࢟LjጲܣᒗᏴᑚࣤဟମดሶୈ።࢟ഗă
ጲሆါத႒ଐႯჅኊࡼ࢟ྏᒋǖ
Ig = Qgtot × fSW
C1 =
(IIN + Ig ) (tSS )
VHYST
ᒦJJO ဵࣅઁNBY27912ࡼด࢟ݝᏎ࢟ഗ)2/5nB*LjRhupu
ဵR2ࡼᔐᐜ࢟LjgTX ဵNBY27912ࡼఎਈຫൈ)373lI{*Lj
WIZTU ဵᔈVWMPᒣૄ࢟ኹ)22/:W*LjuTT ဵดྟݝࣅဟ
ମ)71nt*ă
ಿྙǖ
Ig = (8nC) × (262kHz) = 2.1mA
C1 =
(1.4mA + 2.1mA) × (60ms) = 17.5μF
(12V)
R1 =
VIN(MIN) − VSUVR
IC1 + ISTART
ᒦ W JO)NJO* ဵ።ᒦࡼᔢቃၒྜྷ࢟ኹLjW TVWS ဵᔈ
VWMPታ࢟ຳ)ᔢࡍᒋ,34/7W*LjJTUBSU ဵࣅဟJOࡼ࢟
Ꮞ࢟ഗ)ᔢࡍᒋ:1μB*ă
ಿྙLjୣഗၒྜྷ࢟ኹནᔢቃᒋ96WဟLjᎌǖ
IC1 =
R1 =
( 24V ) × (15μF )
= 0.72mA
( 500ms)
120V
−
24V
(0.72mA + (90μA))
= 119kΩ
࢟ᔜནܪᓰᒋ231lΩă
ྙਫᏤৎࡼޠࣅဟମLjᐌS2ᔜᒋభኡནࡻ܈ၤଐ
ႯᒋৎࡍጙቋLjᑚዹభጲଢ଼ࢅক࢟ᔜࡼă
ၤࣅऱښభ᎖ಢ႒᎖ᅄ6ࡼ࢟വăক࢟വᒦྯླྀ
ᔝᎧၒ߲ླྀᔝᄴሤăፐऎྀੜဟମྯླྀᔝࡼ࢟ኹᎧၒ
߲࢟ኹᔐ߅ᑵ܈Lj݀ਜ਼ၒ߲࢟ኹள಼ሤᄴࡼྟࣅਭ߈ă
D2࠭,33Wह࢟ᒗ,21Wࡼᔢह࢟ဟମܘኍࡍ᎖71ntࡼྟ
ࣅဟମă
ဣሚᔈࡼጙৈऱजဵᏴࢯஂၒ߲࢟ኹࡼླྀᔝᒄᅪݧ
ጙৈࣖೂࡼມᒙླྀᔝLj݀ဧມᒙླྀᔝᎧNPTGFUࡴᄰဟ
ମᄴሤ)ݬᅄ:*ăᏴࠥ༽ౚሆLjჅኊࡼ࢟ྏᒋቃࣶ೫ă
ऎLjᏴᑚᒬऱါሆLjၒྜྷ࢟ኹपᆍܘኍቃ᎖3;2ăᏴ
ࢾມᒙླྀᔝဵ॥Ꭷၒ߲ᄴሤဟLjથᎌጙৈኊገఠࡼ
ᆰᄌăྙਫᄴሤLjᐌMFEདࣅ࢟വ્Ᏼၒ߲വᓨზሆࡌ
ᡅਜ਼ྟࣅăࡣဵLjྙਫມᒙླྀᔝᎧNPTGFUࡴᄰဟମᄴ
ሤLjݙᎌকᄂቶă
࢟ྏᒋནܪᓰᒋ26μGă
10
______________________________________________________________________________________
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
ᅄ6߲೫ጙৈ᎖NBY27912ࡼಭሣါIC! MFEདࣅ።
࢟വăܤኹU2భࡍࡍᄋଐࡼഉቶăดݝᇙތ
हࡍభဣሚऻޟறཀྵࡼMFE࢟ഗ఼ᒜă
ᅄ7߲೫ጙৈᎌሣቶೡࣞࢯஂถࡼऻೌኚgmzcbdl
MFEདࣅăMFEᔐ࢟ኹభࢅ᎖᎖ၒྜྷ࢟ኹă
ᅄ8߲೫ጙৈೌኚࡴᄰෝါࡼIC! MFE! cvdlདࣅLj
ᎌሣቶࢯLjᒑኊࡼᅪݝᏄୈă
ᅄ9߲೫ጙৈ᎖NBY27912ĂݧࢅຫQXNऱါࢯ
ࡼಭሣါಭgmzcbdl IC MFEདࣅăQXNቧኊገनሤ
)ݬถౖᅄ*ăܤኹU2ᄋڔཝಭLjᔫ᎖ᄰୣ
ഗ࢟Ꮞ)96WBDᒗ376WBD*ă
D1
T1
VSUPPLY
D2
R1
R2
C4
Q1
NDRV
IN
VOUT
LEDs
C1
VCC
CS
R4
C2
COMP
R6
R7
MAX16801
C3
GND
DIM/FB
UVLO/EN
R3
R5
GND
ᅄ6/! ಭሣါĂऻಭĂgmzcbdl! MFEདࣅLjᎌభ߈ܠၒྜྷࣅ࢟ኹ
______________________________________________________________________________________
11
NBY27912B0C0NBY27913B0C
።࢟വ
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
VIN
10.8V TO 24V
R1
UVLO/EN
DIM/FB
1
8
2
7
COMP 3
CS
MAX16802B
4
6
5
LED(s)
L1
IN
C4
VCC
NDRV
Q1
D1
GND
R2
R4
R3
DIMMING
C2
C3
R5
C1
GND
ᅄ7/! ᎌೡࣞࢯஂถࡼNBY27913! gmzcbdl! IC! MFEདࣅLjၒྜྷ࢟ኹपᆍ21/9Wᒗ35W
VIN
10.8V TO 24V
R1
LED(s)
UVLO/EN
DIM/FB
1
8
2
7
COMP 3
CS
MAX16802B
4
6
5
D1
IN
C4
VCC
NDRV
Q1
L1
GND
R2
R3
R4
DIMMING
C2
C3
R5
C1
GND
ᅄ8/! ᎌೡࣞࢯஂถࡼNBY27913! cvdl! IC! MFEདࣅLjၒྜྷ࢟ኹपᆍ21/9Wᒗ35W
12
______________________________________________________________________________________
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
NBY27912B0C0NBY27913B0C
OPTIONAL ONLY WHEN PWM DIMMING IS USED
D3
T1
D1
C4
D2
R2
R1
UNIVERSAL
AC INPUT
Q1
NDRV
VCC
LEDs
C3
BRIDGE
RECTIFIER
IN
C6
GND
MAX16801B
CS
C1
C2
DIM/FB
R4
UVLO/EN
R3
*PWM
C5
*WARNING: PWM DIMMING SIGNAL IS SHOWN AT THE PRIMARY SIDE.
USE AN OPTOCOUPLER FOR SAFETY ISOLATION OF THE PWM SIGNAL.
ᅄ9/! ᄰୣഗၒྜྷĂಭሣါĂಭቯgmzcbdl! IC! MFEདࣅLjݧࢅຫQXNࢯ
D1
T1
+VIN
D3
R1
U2
OPTO LED
R2
R8
Q1
NDRV
IN
VOUT
C1
VCC
CS
R11
C4
C3
R4
MAX16801
R7
U2
OPTO TRANS
COMP
R9
Z1
GND
U3
TLV431
R5
DIM/FB
R6
UVLO/EN
R3
C2
GND
C5
R10
ᅄ:/! ᄰၒྜྷĂಭሣါĂಭቯgmzcbdl! IC! MFEདࣅLjᎌறࣞ࢟ഗࢯஂᄂቶ
______________________________________________________________________________________
13
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
`````````````````````````````````````````````````````````````````````````` ถౖᅄ
IN
IN
CLAMP
26.1V
VCC
VCC
IN
REGULATOR
BOOTSTRAP UVLO**
REG_OK
DIGITAL
SOFT-START
VL
REFERENCE
1.23V
21.6V
9.74V
UVLO/EN
(INTERNAL 5.25V SUPPLY)
UVLO
1.28V
1.23V
COMP
DIM/FB
DRIVER
S
ERROR
AMP
NDRV
Q
R
CPWM
VOPWM
CS
*OSCILLATOR
262kHz
1.38V
THERMAL
SHUTDOWN
VCS
0.3V
LIM
MAX16801
MAX16802
``````````````````````````````` ኡቯᒎฉ
BOOTSTRAP
UVLO
STARTUP
VOLTAGE
(V)
MAX DUTY
CYCLE (%)
MAX16801A
Yes
22
50
MAX16801B
Yes
22
75
PART
MAX16802A
No
10.8*
50
MAX16802B
No
10.8*
75
*NBY27913ᎌดݝᔈVWMPă
WDD ୭࢟ኹ᎖,8W )JO୭࢟ኹᆐ,21/9Wဟࡼۣᑺၒ߲*Lj
݀༦VWMP0FO୭ᆐ࢟ຳဟNBY27913ఎဪᔫă
14
GND
*MAX16801A/MAX16802A: 50% MAXIMUM DUTY CYCLE
MAX16801B/MAX16802B: 75% MAXIMUM DUTY CYCLE
**MAX16801 ONLY
``````````````````````````````` ୭ᒙ
TOP VIEW
UVLO/EN 1
8 IN
7 VCC
DIM/FB 2
COMP 3
MAX16801
MAX16802
CS 4
6 NDRV
5 GND
μMAX
______________________________________________________________________________________
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
ॖᓤಢቯ
ॖᓤܠ൩
ᆪܠ
8 μMAX
—
21-0036
______________________________________________________________________________________
15
NBY27912B0C0NBY27913B0C
```````````````````````````````````````````````````````````````````````````` ॖᓤቧᇦ
ྙኊᔢதࡼॖᓤᅪተቧᇦਜ਼ݚLj༿އኯ china.maxim-ic.com/packagesă༿ᓖፀLjॖᓤܠ൩ᒦࡼĐ,đĂĐ$đĐ.đஞܭာSpITᓨზă
ॖᓤᅄᒦభถ۞ݙᄴࡼᆘᓮᔊ९LjࡣॖᓤᅄᒑᎧॖᓤᎌਈLjᎧSpITᓨზᇄਈă
NBY27912B0C0NBY27913B0C
᎖ೡࣞMFEདࣅࡼ
ಭሣါĂED.ED! QXN఼ᒜ
```````````````````````````````````````````````````````````````````````````` ኀࢿ಼ဥ
ኀࢿ
ኀࢿ྇໐
ႁී
ኀখ
0
10/05
ᔢ߱۾ۈă
—
1
1/06
ᐐଝ೫NBY27913BFVB,ୈă
1
2
1/10
ৎᑵ೫ଐႯါLjৎቤ೫ሆܪLj݀࿎߹೫ॖᓤᅄă
1, 2, 3, 6–15
Nbyjn ۱யࠀူێ
۱ய 9439ቧረ ᎆᑶܠ൩ 211194
ॅ࢟જǖ911!921!1421
࢟જǖ121.7322 62::
ࠅᑞǖ121.7322 63::
Nbyjn࣪ݙNbyjnޘອጲᅪࡼྀੜ࢟വဧঌᐊLjጐݙᄋᓜಽభăNbyjnۣഔᏴྀੜဟମĂᎌྀੜᄰۨࡼ༄ᄋሆኀখޘອᓾ೯ਜ਼ਖৃࡼཚಽă
16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2010 Maxim Integrated Products
Nbyjn ဵ Nbyjn!Joufhsbufe!Qspevdut-!Jod/ ࡼᓖݿܪă
19-0560; Rev 0; 5/06
NBY27913Cຶৰۇ
``````````````````````````````````` ᄂቶ
NBY27913Cຶৰ)ۇFW lju*ዝာ᎖NBY27913Cࡼ࢟
ഗ఼ᒜĂࡍ࢟ഗၒ߲ MFE དࣅăຶৰۇభᄋᆮࢾࡼ
861nB ၒ߲࢟ഗLjᔫᏴ 21/9W ᒗ 41W ࢟Ꮞ࢟ኹᒄମLj
ᔫᆨࣞपᆍᆐ.51°Dᒗ,96°Dă
♦ 21/9Wᒗ41W࢟Ꮞ࢟ኹपᆍ
NBY27913C ຶৰۇᎌೝᒬݙᄴಢቯࡼೡ఼ࣞᒜऱါǖ
ಽෝผၒྜྷ࢟ኹQXNၒྜྷቧ఼ᒜMFEೡࣞăকຶ
ৰۇથᎌVWMPถLjᏴၒྜྷ࢟Ꮞ࢟ኹਭࢅဟਈຶܕৰ
ۇLj݀༦భጲᏴ MFE ఎവဟᆐຶৰۇᄋਭኹۣઐă
NBY27913Cຶৰဵۇᅲཝڔᓤ݀ளਭހ၂ࡼ࢟വۇă
வসǖࡩ߲ሚዏᒮ৺ᑇပᓨზဟLjຶ۾ৰۇభถሿ
ࡍถLjᐆ߅ᏄୈᏄୈႵຢࡼႥă༿டဇ
ݷᔫຶ۾ৰۇLjጲܜభถࡼཽă
♦ ࢟ഗ఼ᒜၒ߲
♦ 23Wၒ߲ဟ࢟ഗభࡉ861nB
♦ ሣቶQXNೡ఼ࣞᒜ
♦ ൸Ᏺဟൈࡉ91&
♦ ࢟Ꮞ࢟ኹ་ኹჄࢾ
♦ ၒ߲ਭኹۣઐ
``````````````````````````````` ࢾ৪ቧᇦ
PART
TEMP RANGE
IC PACKAGE
MAX16802BEVKIT
-40°C to +85°C
8 μMAX®
μNBYဵNbyjn! Joufhsbufe! Qspevdut-! Jod/ࡼᓖݿܪă
`````````````````````````````````````````````````````````````````````````` Ꮔୈܭ
DESIGNATION
C1, C2, C5, C6
C3, C4, C7
C8
QTY
QTY
R1
1
R2
1
11kΩ ±1%, 1/8W resistor (0603)
R3
1
499kΩ ±1%, 1/8W resistor (0603)
73.2kΩ ±1%, 1/8W resistor (0603)
L1
1
Q1
1
3
0.1μF, 50V X7R SMD ceramic
capacitors
Murata GRM188R71H104KA93D or
TDK C1608X7R1H104K
470pF, 50V X7R ceramic capacitor
Murata GRM188R71H471KA01D or
TDK C1608X7R1H471K
1nF, 50V X7R ceramic capacitor
Murata GRM188R71H102KA01D or
TDK C1608X7R1H102K
22V, 1.5W zener diode
Vishay SMZG3797B
60V, 1A Schottky diode
Central Semiconductor CMSH1-60M
or Diodes Inc. B160
20V, small-signal Schottky diode
Vishay SD103CWS or
Diodes Inc. SD103CWS
0.1in, 2-pin hole headers
(through hole)
1
D1
1
D2
1
1
2
DESCRIPTION
4.7μH, 4.2A peak SMD inductor
Coilcraft DO3308P-472ML
60V, 3.2A n-channel MOSFET
Vishay Si3458DV
392kΩ ±1%, 1/8W resistor (0603)
4
1
J1, J2
DESIGNATION
4.7μF, 50V X7R ceramic capacitors
Murata GRM32ER71H475KA88L
C9
D3
DESCRIPTION
R4
1
R5, R7
2
1kΩ ±1%, 1/8W resistors (0603)
R6
1
330Ω ±1%, 1/4W resistor (1206)
R8
1
220Ω ±1%, 1/8W resistor (0603)
R9
1
R10
1
0.10Ω ±1%, 1/2W resistor (1206)
Susumu RL1632R-R100-F
1Ω ±5%, 1/8W resistor (0603)
U1
1
MAX16802B (8-pin μMAX)
4
0.1in, 2-pin male connectors
(through hole)
1
MAX16802B PC board
VIN, VLED,
PWM_IN,
LIN_IN
—
________________________________________________________________ Maxim Integrated Products
1
۾ᆪဵNbyjnᑵါ፞ᆪᓾ೯ࡼፉᆪLjNbyjn࣪ݙडፉᒦࡀᏴࡼތፊᎅࠥޘညࡼࡇᇙঌᐊă༿ᓖፀፉᆪᒦభถࡀᏴᆪᔊᔝᒅ
डፉࡇᇙLjྙኊཀྵཱྀྀੜࠤᎫࡼᓰཀྵቶLj༿ݬఠ Nbyjnᄋࡼ፞ᆪۈᓾ೯ă
Ⴣནॅዹອਜ਼ᔢቤࡼۈၫᓾ೯Lj༿षᆰNbyjnࡼᓍǖxxx/nbyjn.jd/dpn/doă
ຶৰۇǖNBY27913C
``````````````````````````````````` গၤ
ຶৰۇǖNBY27913C
NBY27913Cຶৰۇ
``````````````````````````````` Ⴅྜྷඡ
NBY27913Cຶৰဵۇᅲཝᓤ݀ளਭހ၂ࡼ࢟വۇăږ
ᑍሆݛᒾዩᑺᔫ༽ౚăᏴᅲ߅Ⴥᎌೌᒄ༄Ljݙ
ገᄰ࢟Ꮞă
2* ᒇഗ࢟Ꮞ)1ᒗ41WৎLj2B*ೌᒗ,WJOਜ਼HOEă
3* ࢟ኹܭာ݆ਜ਼MFEᑫ)ࠈቲೌLj861nBᑵሶ
࢟ഗሆኹଢ଼Ꮦᆐ23W*ೌᒗ,WMFEਜ਼.WMFE࣡Ǘዴ
,WMFELjፓ.WMFEă
4* ᄰᄢሣK2ਜ਼K3ጲணᒏೡࣞࢯஂă
5* ࡌఎ࢟ᏎLj݀ၒྜྷ࢟ኹᐐଝࡵ21/9Wጲăၒ߲࢟ኹ
ᐐࡍࡵ MFE ᑫᑵሶມᒙ࢟ኹLj݀ᄋࡍᏖ 861nB
ᆮࢾࡼMFEຳ࢟ഗăၒྜྷ࢟ኹᐐᒗ41WLjຳၒ߲
࢟ഗᏴᑳৈ࢟Ꮞ࢟ኹपᆍดۣߒᆮࢾă
কຶৰۇ᎖ᔫᏴ 373lI{Ăऻೌኚ࢟ഗෝါ)EDN*ࡼ
cvdl.cpptuᓞધLjඛৈᒲ໐ᆐၒ߲ᄋጙࢾถLjᄏࡼ
ถᒋᓍገན᎖࢟ঢਜ਼ઓభࡼ߈ܠख़ᒋ࢟ঢ࢟ഗLjᎧ
ၒྜྷ࢟ኹᇄਈăږᑍᑚጙᒙLjຶৰࡼۇၒ߲࢟ኹਜ਼Ᏼ
ࢾMFEᔫ࢟ኹሆMFEࡼၒ߲࢟ഗᎧ࢟Ꮞ࢟ኹᇄਈă
কຶৰۇଐ᎖དࣅMFEঌᏲLj23Wᔫ࢟ኹሆభᄋ
ࡉ861nBࡼᔢࡍ࢟ഗăྙਫMFEࡼᔫ࢟ኹ୷ࢅLjกඐ
ᔢࡍၒ߲࢟ഗ܈ږಿᐐଝLjభۣߒᆮࢾࡼၒ߲ൈă
ᆐདࣅݙᄴᔫ࢟ኹࡼMFEᑫLjኊገখܤଶഗ࢟ᔜăሆ
ෂ߲೫ݙᄴᔫ࢟ኹሆଶഗ࢟ᔜଐႯऱजࡼሮᇼႁීă
ၒྜྷ࢟ᏎVWMP
6* ࣥఎവK2Lj݀ᏴQXN`JOଝᏲQXNቧ)ຫൈᆐ
311I{-! ७ࣞᆐ 1 ᒗ 3W*ă࠭ 1 ᒗ 211&খܤᐴహ܈LjMFE
ೡࣞႲᒄܤછLjሤ።࠭ 211&ܤછᒗ 1&ăࡩ QXN ቧ
ᐴహ܈ᆐ1&ဟLjMFEೡࣞᆐ211&ă
ၒྜྷ࢟Ꮞ VWMP ࢟വᎅ S4ĂS5 ᔝ߅ࡼ࢟ᔜᆀဣሚăক
࢟ᔜᆀଶހၒྜྷ࢟Ꮞ࢟ኹLj݀Ᏼၒྜྷ࢟ኹ᎖21/9Wဟ
ᄰਭFO୭ࣅ࢟വăࡩFO୭ࡼ࢟ኹဍဟLjታ
࢟ኹඡሢᆐ2/34WLjᎌ61nWᒣૄăୈጙࡡఎဪᔫLj
ᒑᏴၒྜྷ࢟Ꮞ࢟ኹࢅ᎖21/5W )ఠࡵᒣૄ࢟ኹ*ဟ્ݣ
ਈࣥă
7* ᄰ K2 ݀ࣥఎ K3ăೌጙৈభ࢟ܤኹᏎᒗ MJO`JOLj
Ᏼ1ᒗ2/7Wᒄମࢯஂ࢟ኹăMFEೡࣞᏴ211&Ꭷ1&ᒄ
ମܤછăၒྜྷMJO`JO࢟ኹᆐ1WဟLjMFEೡࣞᆐ211&ă
VWMPඡሢభږᑍሆါᄰਭ࢟ᔜS2ਜ਼S3ቲࢯஂǖ
⎛V
⎞
R3 = ⎜ UVLO − 1⎟ × R4
⎝ 1.23
⎠
வসǖݙঌᏲဟ༿ᇖຶৰۇ࢟ă
ᒦLjW VWMP ᆐჅገཇࡼ VWMP ඡሢăᆐۣߒඡሢறࣞLj
S5።ቃ᎖211lΩă
``````````````````````````````` ሮᇼႁී
NBY27913C ຶৰ)ۇFW lju*ဵ࢟ഗ఼ᒜቯĂࡍ࢟ഗၒ߲
MFEདࣅLjభᄋࡉ861nBࡼᆮࢾ࢟ഗLj༦ݙ၊࢟Ꮞ
࢟ኹܤછ፬ሰă
```````````````````````````````````````````````````````````````````````` Ꮔୈ።
SUPPLIER
PHONE
FAX
WEBSITE
Central Semiconductor
631-435-1110
631-435-3388
www.centralsemi.com
Coilcraft
847-639-6400
847-639-1469
www.coilcraft.com
Diodes Inc.
805-446-4800
805-446-4850
www.diodes.com
Murata
770-436-1300
770-436-3030
www.murata.com
Susumu Co Ltd.
208-328-0307
208-328-0308
www.susumu-usa.com
TDK
847-390-4373
847-390-4428
www.component.tdk.com
Vishay
402-563-6866
402-563-6296
www.vishay.com
ᓖǖᎧၤᏄୈ።ೊᇹဟLj༿ႁීิᑵᏴဧࡼဵNBY27913Că
2
_______________________________________________________________________________________
NBY27913Cຶৰۇ
WMFE ᑵ୭ሤ࣪᎖ HOE ࡼᔢࡍ࢟ኹᎅ S2ĂS3 ᔝ߅ࡼ
नౣᆀሢᒜᏴ56WLjকᆀೌᒗNBY27913CࡼGC
୭ăྙਫຶৰۇᏴᎌঌᏲဟఎ MFE ఎവLjᐌ
WMFEᑵ࢟ኹభถ્ဍࡵڔݙཝࡼ࢟ኹăดݝᇙތह
ࡍ્ଶހᑚᒬ༽ౚLj࠭ऎଢ଼ࢅ࢟ঢࡼख़ᒋ࢟ഗLj
WMFEᑵ୭ࡼ࢟ኹሢᒜᏴ56Wጲดă૾ܣဧ೫ᑚᒬ
ۣઐLj྆ፇᏴຶৰۇ࢟ᒄ༄ᒎࢾࡼঌᏲă
QXNೡࣞࢯஂ
ᄰਭࢯஂೌᏴ QXO`JO ၒྜྷ࣡ࡼ QXN ቧᐴహ܈఼
ᒜMFEೡࣞăQXN`JOၒྜྷᆐ࢟ຳဟਈࣥMFE࢟ഗǗၒ
ྜྷᆐࢅ࢟ຳဟఎMFE࢟ഗăቧख़ᒋᏴ2/6Wᒗ6/1WĂຫ
ൈᆐ211I{ᒗ2111I{Ljᄰਭখܤᐴహஂࢯ܈MFEೡࣞăຫ
ൈࢅ᎖211I{ࡼቧభถ્ࡴᒘၒ߲࿑ႄăᐐࡍᐴహ܈ဟLj
MFEೡࣞିྦྷLjनᒄጾăQXNᐴహ܈ᆐ1&ဟLjMFEೡ
ࣞࡉࡵ211&ă
ሣቶೡࣞࢯஂ
ሣቶೡࣞࢯஂဵᄰਭখ ܤMJO`JO ၒྜྷ࢟ኹࡼ७఼ࣞᒜ
MFE ೡࣞăMJO`JO ၒྜྷࢯᒜଶഗቧLjᏴݙᄴࡼ࢟ഗሆ
߿खNPTGFUăᑚጙਭ߈્ጙ఼ݛᒜၒ߲࢟ഗLj࠭ऎࡉ
ࡵ఼ᒜMFEೡࣞࡼࡼăፐᆐᏴྀੜೡࣞࢀMFEဪᒫۣ
ߒࡴᄰᓨზLjሣቶೡࣞࢯஂޘ્ݙည࿑ႄሚሷăᏴ 1 ᒗ
2/7WपᆍดࢯஂMJO`JO࢟ኹLjభဧMFEೡࣞᏴ211&ᒗ1&
ମܤછăMJO`JO࢟ኹᐐࡍဟLjMFEೡࣞିྦྷLjनᒄጾă
MJO`JO࢟ኹᆐ1WဟLjMFEೡࣞᆐ211&ă
ࢯஂၒ߲ൈ
োሆါࢯஂଶഗ࢟ᔜ S:Ljభጲখຶܤৰࡼۇᔢࡍ
ၒ߲ൈǖ23WĂ861nBăᓖፀǖຶৰۇᔢࡍၒ߲࢟ഗሢ
ᒜᏴ861nBĂᔢࡍၒ߲࢟ኹሢᒜᏴ26WLj༦ᔢࡍၒ߲ൈ
ሢᒜᏴ9/36Xă
၅ሌଐႯᔢቃၒྜྷ࢟ኹሆࡼᔢଛࡴᄰᐴహ܈ǖ
VLED + VD
DON =
VINMIN + VLED + VD
ଐႯჅገཇࡼख़ᒋ࢟ঢ࢟ഗǖ
k × 2 × ILED
IP = f
1 − DON
ᒦLjl g ᆐĐኀᑵፐᔇđ)ऻஏᇹၫ*Ljক࢟വᒦ
ᒙᆐ2/2ă
ଐႯჅኊࡼ࢟ঢᒋLj݀ኡᐋᔢதܪᓰᒋࡣቃ᎖ଐႯᒋ
ࡼ࢟ঢǖ
L=
DON × VINMIN
fSW × IP
ᒦLjMᆐ࢟ঢM2ࡼ࢟ঢᒋǗgTX ᆐఎਈຫൈLjࢀ᎖373lI{ă
ᄰਭन૮ෝါᄋၒ߲࢟വࡼൈᆐǖ
PIN =
1
× L × IP2 × fSW
2
ၒ߲࢟വሿࡼൈᆐǖ
POUT = VLED × ILED + VD × ILED
োถ၆ੱࢾേLjၤೝৈࢀါሤࢀLj࠭ऎཇ߲ጙৈ
ৎறཀྵࡼख़ᒋ࢟ঢ࢟ഗǖ
⎛ 2 × (VLED + VD ) × ILED ⎞
IP = ⎜
⎟
⎝
⎠
fSW × L
োཇࡻࡼJQFBLLjಽሆါଐႯଶഗ࢟ᔜS:ǖ
R9 =
0.292 × (R8 + R7)
IPEAK × R7
ᒦLj1/3:3Wᆐଶഗඡሢ࢟ኹăS8ĂS9ᔝ߅ጙৈ࢟ᔜॊ
ኹLjถ৫Ᏼୈଶഗ୭ᒄ༄܈ږಿଢ଼ࢅଶഗ࢟ᔜ
ࡼኹଢ଼ă
ᄢሣኡᐋ
ݙဧQXNೡࣞࢯஂဟᄢሣK2ᄰǗݙဧሣቶೡࣞ
ࢯஂဟᄢሣK3ᄰă
ᒦLjW JONJO ᆐᔢቃၒྜྷ࢟ኹLjW MFE ᆐ MFE ᔫ࢟ኹLj
JMFE ᆐჅገཇࡼMFE࢟ഗLjWE ᆐE3ࡼᑵሶ࢟ኹă
_______________________________________________________________________________________
3
ຶৰۇǖNBY27913C
ၒ߲ਭኹۣઐ
ຶৰۇǖNBY27913C
NBY27913Cຶৰۇ
-VLED
+VIN
R1
392kΩ
1%
GND
R3
499kΩ
1%
R5
1kΩ
1%
PWM_IN
C2
4.7μF
50V
C1
4.7μF
50V
1
R6
330Ω
1%
D1
22V
L1
4.7μH
C3
0.1μF
50V
IN
UVLO/EN
8
D2
CMSH1-60M
MAX16802B
2
R4
73.2kΩ
1%
J1
PWM_GND
C9
1nF
50V
LIN_IN
LIN_GND
R2
11kΩ
1%
J2
3 COMP
4
C8
470pF
50V
R7
1kΩ
1%
DIM/FB
CS
VCC
NDRV
GND
7
6
5
R8
220Ω
1%
R10
1Ω
12 56
3
C7
0.1μF
50V
Q1
Si3458DV
4
R9
0.10Ω
1%
ᅄ2/! NBY27913CຶৰۇᏇಯᅄ
4
C5
4.7μF
50V
C6
4.7μF
50V
+VLED
U1
D3
SD103CWS
C4
0.1μF
50V
_______________________________________________________________________________________
NBY27913Cຶৰۇ
ຶৰۇǖNBY27913C
ᅄ3/! NBY27913CຶৰۇᏄୈݚ—Ꮔୈށ
ᅄ4/! NBY27913CຶৰۇQDCݚ—Ꮔୈށ
ᅄ5/! NBY27913CຶৰۇQDCݚ—ށ
Nbyjn࣪ݙNbyjnޘອጲᅪࡼྀੜ࢟വဧঌᐊLjጐݙᄋᓜಽభăNbyjnۣഔᏴྀੜဟମĂᎌྀੜᄰۨࡼ༄ᄋሆኀখޘອᓾ೯ਜ਼ਖৃࡼཚಽă
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ______________________5
© 2006 Maxim Integrated Products
Printed USA
ဵ Nbyjn!Joufhsbufe!Qspevdut-!Jod/ ࡼᓖݿܪă