MAXIM NBY27912B0C0, NBY27913B0C Technical data

19-3880; Rev 2; 1/10

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NBY27912B0C0NBY27913B0Cဵ঱ೡࣞ)IC* MFEདࣅ໭఼
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NBY27912B0NBY27913Bࡼᔢࡍᐴహ܈ᆐ61&LjNBY27912C0
NBY27913Cࡼᔢࡍᐴహ܈ᆐ86&ăᑚቋ໭ୈ௿ݧ፿9፛୭

®

μNBY

ᓤLjభ৔ᔫᏴ.51°Dᒗ,96°Dᆨࣞᆍă

``````````````````````````````````` ።፿

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μ

NBYဵNbyjn! Joufhsbufe! Qspevdut-!Jod/ࡼᓖݿ࿜ܪă

࿜ጓᎧ৔ጓᑍී
ᓤြᎧ୐ᓔᑍී

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MFE࢟ഗࢯஂ

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♦ ௥ᎌ୷঱ᒣૄ࢟ኹࡼดݝᔈ௟VWMP! )NBY27912*

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৔ᔫ࢟Ꮞ࢟ഗ

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)NBY27912C0NBY27913C*ᔢࡍᐴహ܈

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``````````````````````````````` ࢾ৪ቧᇦ

PART

MAX16801AEUA+ -40°C to +85°C 8 μMAX

MAX16801BEUA+ -40°C to +85°C 8 μMAX

MAX16802AEUA+ -40°C to +85°C 8 μMAX

MAX16802BEUA+ -40°C to +85°C 8 μMAX

,

ܭာᇄ໺ᓤă

TEMP

RANGE

PIN­PACKAGE

NBY27912B0C0NBY27913B0C

`````````````````````````````````````````````````````````````````````` ࢜ቯ৔ᔫ࢟വ

10.8VDC TO 24VDC

ENABLE

PWM

வসǖNBY279120NBY27913࿸ଐ৔ᔫ᎖঱ኹሆLjᓖፀቃቦݷᔫă

________________________________________________________________ Maxim Integrated Products 1

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૞ᆰNbyjnࡼᒦᆪᆀᐶǖdijob/nbyjn.jd/dpnă

UVLO/EN IN

DIM/FB

MAX16802B

COMP

CS

GND

V

NDRV

GND

LEDs

L1

CC

Q1

C1 R1

C2

C3

D1

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ABSOLUTE MAXIMUM RATINGS

IN to GND
V

CC

..........................................................................

to GND

......................................................................

-0.3V to +30V

-0.3V to +13V

DIM/FB, COMP, UVLO/EN, CS to GND....................-0.3V to +6V

NDRV to GND.............................................-0.3V to (V

Continuous Power Dissipation (T

= +70°C)

A

CC

+ 0.3V)

8-Pin μMAX (derate 4.5mW/°C above +70°C) ..............362mW

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: VINmust first be brought up to +23.6V for startup), 10nF bypass capacitors at IN and VCC, C
V

UVLO/EN

are at T

UNDERVOLTAGE LOCKOUT/STARTUP

Bootstrap UVLO Wake-Up Level V

Bootstrap UVLO Shutdown Level V

UVLO/EN Wake-Up Threshold V

UVLO/EN Shutdown Threshold V

NBY27912B0C0NBY27913B0C

UVLO/EN Input Current I

UVLO/EN Hysteresis 50 mV

IN Supply Current In
Undervoltage Lockout

IN Voltage Range V

UVLO/EN Propagation Delay

Bootstrap UVLO Propagation
Delay

INTERNAL SUPPLY

VCC Regulator Set Point V

IN Supply Current After Startup I

Shutdown Supply Current UVLO/EN = low 90 μA

GATE DRIVER

Driver Output Impedance

Driver Peak Sink Current 1A

Driver Peak Source Current 0.65 A

PWM COMPARATOR

Comparator Offset Voltage VO

CS Input Bias Current I

Comparator Propagation Delay t

Minimum On-Time t

= +1.4V, V

= +25°C.) (Note 1)

A

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

= +1.0V, COMP = unconnected, VCS= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values

DIM/FB

SUVR

SUVF

ULR2

ULF2

UVLO

I

START

t

EXTR

t

EXTF

t

BUVR

t

BUVF

CCSP

IN

R

ON(LOW)

R

ON(HIGH)

PWMVCOMP

CS

PWM

ON(MIN)

VIN rising (MAX16801 only) 19.68 21.6 23.60 V

VIN falling (MAX16801 only) 9.05 9.74 10.43 V

UVLO/EN rising 1.188 1.28 1.371 V

UVLO/EN falling 1.168 1.23 1.291 V

TJ = +125°C 25 nA

VIN = +19V, for MAX16801 only when in
bootstrap UVLO

IN

UVLO/EN steps up from +1.1V to +1.4V 12

UVLO/EN steps down from +1.4V to +1.1V 1.8

VIN steps up from +9V to +24V 5

VIN steps down from +24V to +9V 1

VIN = +10.8V to +24V, sinking 1μA to 20mA
from V

CC

VIN = +24V 1.4 2.5 mA

Measured at NDRV sinking, 100mA 2 4

Measured at NDRV sourcing, 20mA 4 12

- V

CS

VCS = 0V -2 +2 μA

VCS = +0.1V 60 ns

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

= 0μF,

NDRV

45 90 μA

10.8 24 V

μs

μs

7 10.5 V

Ω

1.15 1.38 1.70 V

150 ns

2 _______________________________________________________________________________________

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ELECTRICAL CHARACTERISTICS (continued)

(VIN= +12V (MAX16801: VINmust first be brought up to +23.6V for startup), 10nF bypass capacitors at IN and VCC, C
V

UVLO/EN

are at T

CURRENT-SENSE COMPARATOR

Current-Sense Trip Threshold V

CS Input Bias Current I

Propagation Delay From
Comparator Input to NDRV

Switching Frequency f

Maximum Duty Cycle D

IN CLAMP VOLTAGE

IN Clamp Voltage V

ERROR AMPLIFIER

Voltage Gain R

Unity-Gain Bandwidth R

Phase Margin R

DIM/FB Input Offset Voltage 3mV

COMP Clamp Voltage

Source Current 0.5 mA

Sink Current 0.5 mA

Reference Voltage V

Input Bias Current 50 nA

COMP Short-Circuit Current 8mA

THERMAL SHUTDOWN

Thermal-Shutdown Temperature 130 °C

Thermal Hysteresis 25 °C

DIGITAL SOFT-START

Soft-Start Duration 15,872

Reference Voltage Steps During
Soft-Start

Reference Voltage Step 40 mV

Note 1: All devices are 100% tested at TA= +85°C. All limits over temperature are guaranteed by characterization.
Note 2: V
Note 3: The MAX16801 is intended for use in universal input offline drivers. The internal clamp circuit is used to prevent the boot-

= +1.4V, V

= +25°C.) (Note 1)

A

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

is measured with DIM/FB connected to the COMP pin (see the Functional Diagram).

REF

strap 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.

= +1.0V, COMP = unconnected, VCS= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values

DIM/FB

262 291 320 mV

230 262 290 kHz

31 Steps

CS

t

PWM

SW

MAX

INC

REF

CS

VCS = 0V -2 +2 μA

50mV overdrive 60 ns

MAX1680_A 50 50.5

MAX1680_B 75 76

2mA sink current, MAX16801 only (Note 3) 24.1 26.1 29.0 V

= 100kΩ 80 dB

LOAD

= 100kΩ, C

LOAD

= 100kΩ, C

LOAD

High 2.2 3.5

Low 0.4 1.1

(Note 2) 1.218 1.230 1.242 V

= 200pF 2 MHz

LOAD

= 200pF 65 D eg r ees

LOAD

NDRV

= 0μF,

%

V

Clock

cycles

NBY27912B0C0NBY27913B0C

_______________________________________________________________________________________ 3

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`````````````````````````````````````````````````````````````````````` ࢜ቯ৔ᔫᄂቶ

(V

UVLO/EN

= +1.4V, V

= +1V, COMP = unconnected, VCS= 0V, TA= +25°C, unless otherwise noted.)

DIM/FB

BOOTSTRAP UVLO WAKE-UP LEVEL

vs. TEMPERATURE

21.60

21.55

21.50

(V)

21.45

IN

V

21.40

21.35

21.30

-40 80

MAX16801 VIN RISING

MAX16801 toc01

6040200-20

TEMPERATURE (°C)

UVLO/EN SHUTDOWN THRESHOLD

vs. TEMPERATURE

1.30

NBY27912B0C0NBY27913B0C

1.25

1.20

UVLO/EN (V)

1.15

1.10

-40 80

TEMPERATURE (°C)

UVLO/EN FALLING

MAX16801 toc04

6040200-20

BOOTSTRAP UVLO SHUTDOWN LEVEL

vs. TEMPERATURE

10.1

10.0

(V)

9.9

IN

V

9.8

9.7

-40 80

TEMPERATURE (°C)

VIN SUPPLY CURRENT IN UNDERVOLTAGE

LOCKOUT vs. TEMPERATURE

52

VIN = 19V

51

MAX16801 WHEN IN BOOTSTRAP UVLO
MAX16802 WHEN UVLO/EN IS LOW

50

49

48

(μA)

47

START

I

46

45

44

43

42

-40 80

TEMPERATURE (°C)

MAX16801 VIN FALLING

6040200-20

6040200-20

MAX16801 toc02

MAX16801 toc05

UVLO/EN WAKE-UP THRESHOLD

vs. TEMPERATURE

1.280

1.275

1.270

1.265

UVLO/EN (V)

1.260

1.255

1.250

-40 80

TEMPERATURE (°C)

VIN SUPPLY CURRENT AFTER STARTUP

vs. TEMPERATURE

1.5

1.4

(mA)

1.3

IN

I

1.2

1.1

-40 80

TEMPERATURE (°C)

UVLO/EN RISING

MAX16801 toc03

6040200-20

VIN = 24V

MAX16801 toc06

6040200-20

VCC REGULATOR SET POINT

vs. TEMPERATURE

9.8

9.7
NDRV OUTPUT IS NOT

SWITCHING, V

9.6

(V)

9.5

CC

V

9.4

9.3

9.2

-40 80

NDRV OUTPUT IS
SWITCHING

= 1.5V

DIM/FB

TEMPERATURE (°C)

VIN = 19V

NO LOAD

6040200-20

MAX16801 toc07

(V)
V

VCC REGULATOR SET POINT

vs. TEMPERATURE

8.9

8.8

8.7

8.6

8.5

CC

8.4

8.3

8.2

8.1

-40 80

TEMPERATURE (°C)

VIN = 10.8V

10mA LOAD

20mA LOAD

6040200-20

310

305

MAX116801 toc08

300

295

290

285

280

CURRENT-SENSE THRESHOLD (mV)

275

270

CURRENT-SENSE THRESHOLD

vs. TEMPERATURE

+3σ

MEAN

-3σ

-40 80

TEMPERATURE (°C)

4 _______________________________________________________________________________________

TOTAL NUMBER OF
DEVICES = 100

6040200-20

MAX16801 toc09

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``````````````````````````````````````````````````````````````````````````` ࢜ቯ৔ᔫᄂቶ)ኚ*

(V

UVLO/EN

PERCENTAGE OF UNITS (%)

(ns)

PWM

t

= +1.4V, V

= +1V, COMP = unconnected, VCS= 0V, TA= +25°C, unless otherwise noted.)

DIM/FB

CURRENT-SENSE THRESHOLD

30

25

20

15

10

5

0

260 320

CURRENT-SENSE THRESHOLD (mV)

TOTAL NUMBER OF
DEVICES = 200

310300290280270

PROPAGATION DELAY FROM

CURRENT-SENSE COMPARATOR INPUT

TO NDRV vs. TEMPERATURE

75

70

65

60

55

50

-40 80

TEMPERATURE (°C)

6040200-20

280

+3σ

275

MAX16801 toc10

270

265

MEAN

260

255

250

SWITCHING FREQUENCY (kHz)

MAX16801 toc13

-3σ

245

240

-40 80

14
13
12
11
10

9
8
7
6
5
4
3
2

UNDERVOLTAGE LOCKOUT DELAY (μs)

1
0

-40 80

SWITCHING FREQUENCY

vs. TEMPERATURE

TOTAL NUMBER OF
DEVICES = 100

6040200-20

TEMPERATURE (°C)

UVLO/EN PROPAGATION DELAY

vs. TEMPERATURE

UVLO/EN RISING

UVLO/EN FALLING

6040200-20

TEMPERATURE (°C)

30

25

MAX16801 toc11

20

15

10

PERCENTAGE OF UNITS (%)

5

0

230 290

1.230
VIN = 12V

1.229

MAX16801 toc14

1.228

1.227

REFERENCE VOLTAGE (V)

1.226

1.225

-40 80

SWITCHING FREQUENCY

TOTAL NUMBER OF
DEVICES = 200

SWITCHING FREQUENCY (kHz)

REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

280270260250240

6040200-20

NBY27912B0C0NBY27913B0C

MAX16801 toc12

MAX16801 toc15

INPUT CURRENT

vs. INPUT VOLTAGE

10

9

8

7

6

5

4

INPUT CURRENT (mA)

3

2

1

0

10.0 30.0
INPUT VOLTAGE (V)

_______________________________________________________________________________________ 5

INPUT CLAMP VOLTAGE

vs. TEMPERATURE

27.0

26.8

MAX16801 toc16

26.6

26.4

26.2

26.0

25.8

25.6

INPUT CLAMP VOLTAGE (V)

25.4

25.2

27.525.020.0 22.515.0 17.512.5

25.0

-40 80

TEMPERATURE (°C)

IIN = 2mA

6040200-20

MAX16801 toc17

2.2

2.1

2.0

1.9

1.8

(Ω)

1.7

ON

R

1.6

1.5

1.4

1.3

1.2

NDRV OUTPUT IMPEDANCE

vs. TEMPERATURE

VIN = 24V
SINKING 100mA

-40 80

TEMPERATURE (°C)

6040200-20

MAX16801 toc18

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```````````````````````````````````````````````````````````````````````````` ࢜ቯ৔ᔫᄂቶ)ኚ*

(V

UVLO/EN

= +1.4V, V

= +1V, COMP = unconnected, VCS= 0V, TA= +25°C, unless otherwise noted.)

DIM/FB

NDRV OUTPUT IMPEDANCE

5.0

4.8

4.6

4.4

4.2

(Ω)

4.0

ON

R

3.8

3.6

3.4

3.2

3.0

-40 80

vs. TEMPERATURE

VIN = 24V
SOURCING 20mA

TEMPERATURE (°C)

MAX16801 toc19

6040200-20

ERROR-AMPLIFIER OPEN-LOOP GAIN

120

100

GAIN (dB)

-20

-40

-60

-80

-100

AND PHASE vs. FREQUENCY

80

60

40

20

0 -70

0.1 100M

GAIN

PHASE

FREQUENCY (Hz)

MAX16801 toc20

50

30

10

-10

-30

-50

-90

PHASE (DEGREES)

-110

-130

-150

-170

10M1M10k1k 100k10 1001

`````````````````````````````````````````````````````````````````````````` ፛୭ႁී

፛୭

NBY27912B0C0NBY27913B0C

1 UVLO/EN

2 DIM/FB

3 COMP

෗߂ ৖ถ

ᅪݝభܠ߈་ኹჄࢾăVWMP࿸ᒙၒྜྷ໪ࣅ࢟ኹă୓VWMPೌ୻ᒗHOEభணᒏ໭ୈ৔ᔫă

ࢅຫQXNೡࣞࢯஂၒྜྷ0ᇙތࡍ໭ሤၒྜྷ࣡ă

ᇙތࡍ໭ၒ߲ăᏴ঱றࣞMFE࢟ഗࢯஂ።፿ᒦLj୓ݗޡᏄୈೌ୻ᏴEJN0GCDPNQᒄମă

4CS

5 GND

6 NDRV

7V

CC

࢟ഗঢ።ቧೌ୻࣡Lj፿᎖࢟ഗࢯஂă୻ᒗଶഗ࢟ᔜ঱࣡ăభጲ፿SD൉݆໭߹བྷ༄ዘ࿟ࡼඇࠦă

࢟Ꮞ࢐ă
ᅪݝo৥ࡸNPTGFUᐜ૵ೌ୻࣡ă
ᐜ૵དࣅ࢟ᏎăดݝᎅJOଢ଼ኹࡻࡵăW

ᎧHOEମ୻ጙᒑ21oG૞ྏᒋৎ঱ࡼབྷẮ࢟ྏ໭ă

DD

JD࢟ᏎăJOᎧHOEମ୻ጙᒑ21oG૞ྏᒋৎ঱ࡼབྷẮ࢟ྏ໭ăᔈ௟৔ᔫෝါ)NBY27912*ሆLjభᏴၒྜྷ࢟Ꮞ

8IN

JOᒄମ୻ጙৈ໪ࣅ࢟ᔜăມᒙླྀᔝ࢟Ꮞೌ୻ᒗক࢛)ݬ୅ᅄ6*ă࣪᎖NBY27913LjJOᒇ୻୻,21/9Wᒗ,35W
࢟Ꮞă

``````````````````````````````` ሮᇼႁී

NBY279120NBY27913ᇹ೰໭ୈ፿᎖঱ೡࣞ)IC*! MFEࡼ
ഗདࣅLjးᄰ፿ᑍීመာ።፿ăকᇹ೰໭ୈᓜᆐ৆
ಭ৆ಭ࢟വᅠແ࿸ଐLjྙcvdlĂcpptuĂgmzcbdl
TFQJDࢀLj৔ᔫᏴೌኚ૞ೌኚෝါăఎຫൈᏴดݝᆈ
ࢯᆐ373lI{ৼࢾᒋLjభဣሚ࢟ഗෝါ఼ᒜă௥ᎌ୷঱ᒣ
ૄ࢟ኹ)22/:W*ࡼᔈ௟VWMP࢟വĂިࢅ໪ࣅ࢟ഗጲૺࢅ৔

ᔫ࢟ഗᄂቶLjభဣሚ঱቉ࡼᄰ፿ၒྜྷMFEདࣅ໭ăকᇹ೰
໭ୈ߹ดᒙᔈ௟VWMPᅪLjથถᄰVWMP0FO፛୭࣪ၒྜྷ
໪ࣅ࢟ኹ஠ቲܠ߈࿸ᒙăNBY27912ޟးᄰ፿ୣഗၒ
ྜྷ)96WBDᒗ376WBDᑳഗ࢟ኹၒྜྷ* དࣅ໭ăNBY27913
ޟးࢅၒྜྷ࢟ኹ)21/9WEDᒗ35WED*።፿ă

NBY279120NBY27913ᓆᒲ໐ପ၁ഗᅪݝNPTGFUࡼ࢟
ഗLj࠭ဣሚ࣪MFE࢟ഗࡼࢯஂă

6 _______________________________________________________________________________________

፿᎖঱ೡࣞMFEདࣅ໭ࡼ

ಭሣါĂED.ED!QXN఼ᒜ໭

ࡩ৔ᔫᏴࡒᎌܤኹ໭ࡼᔈ௟ෝါဟ)ᅄ6*Ljক࢟വથభᄋ
৙ࡍࣶၫ࣢വ৺ᑇۣઐăࡩ߲ሚ࣢വ৺ᑇဟLj࢒ྯླྀᔝ
࢟ኹଢ଼ᒗ,21WጲሆLjᒘဧVWMP࢟വܕ৙৊ᅪݝ
NPTGFUࡼᐜ૵དࣅቧăᑚ્ᒮቤ߿ጙࠨྟ໪ࣅ߈ă

ྦኊገறමࢯஂMFE࢟ഗLjభಽ፿ຢ࿟ᇙތࡍ໭ጲૺற
ࣞᆐ2&ࡼ૥ᓰ)ᅄ:*ăᑚጙᅪౣభࡍࡍଢ଼ࢅᎅ᎖ᇄᏎ
ᏄୈܤછມތჅޘညࡼ፬ሰLj݀༦ᒑኊᔢ࿩ࡼᅪᆍᏄ
ୈ૾భဣሚă

୓ࢅຫQXNೡࣞࢯஂቧᒇ୻ౣྜྷEJN0GC፛୭భဣሚ౑
ᆍࡼೡࣞࢯஂă

૥᎖NBY27912࿸ଐࡼMFEདࣅ࢟വݧ፿ጙৈ঱ᒋ໪ࣅ࢟
ᔜS2ᆐ߼ถ࢟ྏD2ߠ࢟)ᅄ6૞ᅄ:*ăᏴ߱ဪ୿ࣤLjߠ࢟
࢟ኹࢅ᎖ดݝᔈ௟VWMPඡሢ࢟ኹLj໭ୈሿࡼஸზ࢟ഗ
ஞᆐ56μB )࢜ቯᒋ*ăࢅ໪ࣅ࢟ഗ୷঱ᒣૄ࢟ኹࡼᔈ௟
VWMPభࡍࡍଢ଼ࢅS2ࡼ৖Lj૾ܣဵᏴᄰ፿ୣഗၒྜྷ࢟ኹ
ᆡ᎖঱࣡ဟ৖ጐቃă

ࡩበຢஉᆨި,241°D )࢜ቯᒋ*ဟLjดᒙࡼࣥ࢟വభ
໪ࣅۣઐ৖ถă

ೡࣞࢯஂ

ሣቶೡࣞࢯஂဵᄰᏴDT࿟ࡼጙৈཇஂ࢛౶ဣሚࡼLj
ྙᅄ7ᅄ8Ⴥာă

ࢅຫQXN )࢟ഗᐮ݆*ೡࣞࢯஂᐌᄰᏴ໭ୈࡼEJN0GC፛
୭࿟ဗଝጙৈሤ൝૷QXNቧ౶ဣሚ)ᅄ9*ăᑚᒬ
࣪᎖กቋገཇࢯஂೡࣞဟዏৃۣߒໍݙܤࡼ።፿ޝ
ጐ኏્ဵ၅ኡښă჈ဵᄰ࣪ࢾࣞࡼMFE࢟ഗ஠ቲ
ᐮ݆ဣሚࢯࡼă

NBY279120NBY27913ࡼມᒙ

ࡩܤኹ໭ࡀᏴဟLjᎅܤኹ໭ဣሚᔈ௟)ᅄ6*ăݧ፿৆ಭ
ါᅠແဟጐభᒇ୻ᎅMFEޘညມᒙ)ᅄ2*ă

NBY27912B0C0NBY27913B0C

R1

V

CC

IN GND

AC

IN

BRIDGE

RECTIFIER

COMP

C1

C2 C3

DIM/FB

ᅄ2/! Ᏼ৆ಭቯgmzcbdlདࣅ໭ᒦಽ፿MFEᆐJDᄋ৙ມᒙ

MAX16801B

NDRV

UVLO/EN

R5

R2

CS

R6

Q1

R3

R4

L1

C4

D3

TOTAL LED VOLTAGE:

11V TO 23V

_______________________________________________________________________________________ 7

፿᎖঱ೡࣞMFEདࣅ໭ࡼ
ಭሣါĂED.ED!QXN఼ᒜ໭

VDC

VDC

R

IN

D

(a)

ᅄ3/! )b*࢟ᔜ.໡ฃ૵)c*஭ᄏ.໡ฃ૵.࢟ᔜມᒙ࢟വ

MAX16802A

NBY27913భᒇ୻ᎅ21/9WEDᒗ35WEDၒྜྷ࢟ኹ஠ቲມᒙă
ಽ፿࢟ᔜ໭.໡ฃ૵)ᅄ3b*૞஭ᄏ.໡ฃ૵.࢟ᔜ
໭ມᒙ࢟വ)ᅄ3c*LjNBY27913ጐభ፿Ᏼৎ঱ᒇഗၒྜྷ࢟
ኹࡼޝă

NBY279120NBY27913་ኹჄࢾ

NBY27912B0C0NBY27913B0C

NBY279120NBY27913௥ᎌጙৈၒྜྷ࢟ኹVWMP0FO፛୭ă
VWMPඡሢ࢟ኹᆐ,2/39WăᒑᎌᏴক፛୭࢟ኹࡍ᎖,2/39W
ઁ࢟വݣఎဪ৔ᔫăVWMP࢟വభဧDQXN܈୷໭ĂJMJN
܈୷໭Ăᑩ࡬໭ጲૺၒ߲དࣅ໭ࠀ᎖ࣥᓨზLjጲି࿩
࢟ഗሿ)ݬ୅
໪ࣅ࢟ኹăኹ࢟ᔜS3S4 )ᅄ6*ᔜᒋࡼଐႯ৛ါྙሆǖ

৖ถౖᅄ

*ăಽ፿কVWMP৖ถభ࿸ᒙၒྜྷ

R

Q

IN

DC

(b)

MAX16802A

NBY27912ᔈ௟་ኹჄࢾ

߹೫NBY279120NBY27913௿௥ᎌࡼᅪݝభܠ߈VWMPᅪLj
NBY27912થดᒙጙৈᅪࡼᔈ௟VWMPLjᏴ࿸ଐ঱ኹ
MFEདࣅ໭ဟޟᎌ፿)ݬ୅
߱ဪ࿟࢟ဟᔈቲ໪ࣅăࡩW
,34/7WဟLjNBY27912ఎဪ໪ࣅă໪ࣅ໐ମLjVWMP࢟വ
ۣߒDQXN܈୷໭ĂJMJN܈୷໭Ăᑩ࡬໭ጲૺၒ߲དࣅ
໭ࠀ᎖ࣥᓨზLjጲିቃ࢟ഗሿăጙࡡW
VWMP࢟വ໪ࣅDQXN܈୷໭ĂJMJN܈୷໭ᑩ࡬໭Lj݀
Ꮴ኏ၒ߲དࣅ໭ఎဪఎݷᔫăྙW
VWMP࢟വᐌࣥDQXN܈୷໭ĂJMJN܈୷໭Ăᑩ࡬໭ጲ
ૺၒ߲དࣅ໭Lj࠭ဧNBY27912ૄᒗ໪ࣅෝါă

৖ถౖᅄ

JO

*ăᑚዹᏤ኏໭ୈᏴ

঱᎖ᔈ௟VWMPඡሢ࢟ኹ

ࡉࡵ,34/7WLj

JO

ଢ଼ᒗ,:/8WጲሆLj

JO

VV

R

3

≅

500

ULR IN

IVV

×

UVLO IN ULR

ኡᐋS4ᔜᒋဟLj።ဧVWMP0FOၒྜྷມᒙ࢟ഗᏴS3࿟ࡼኹ
ଢ଼ჅޘညࡼᇙތᔢࢅăW
)ᔢࡍᒋ*LjW

ဵ࢟Ꮞ໪ࣅဟࡼၒྜྷ࢟Ꮞ࢟ኹᒋă

JO

VV

IN ULR

R

23

=×

×

2

−

()

> ,2/39WLjJ

VMS3

−

2

V

ULR

2

2

> 61oB

VWMP

R

NBY27912໪ࣅ৔ᔫෝါ

Ᏼ৆ಭါMFEདࣅ໭።፿ᒦLjWJOནᔈܤኹ໭ࡼ࢒ྯླྀᔝă
཭Lj໪ࣅဟܤኹ໭ᒦ඗ᎌ࢟ถᄋ৙ăፐࠥLjኊገᄂࢾ
ࡼᔈ௟߈ăᅄ4Ⴥာᆐ໪ࣅဟJOW
ఎဪLjW

JOWDD

S2୓D2ߠᒗ෭ৈᒦମ࢟ኹăࠥဟLjดݝᆮኹ໭ఎဪሶD3
ߠ࢟ )ݬ୅ᅄ6*ăᏴᎅS2ᄋ৙ࡼ࢟ഗࡩᒦLjNBY27912ஞ
፿56μBLj໚᎜ၒྜྷ࢟ഗᐌᆐD2D3ߠ࢟ăࡩW

௿ᆐ1Wăဗଝ࢟Ꮞ࢟ኹᒄઁLj໪ࣅ࢟ᔜ

႒ᆐ,:/6WဟLjᄫᒏ࣪D3ߠ࢟LjD2ೝ࣡ࡼ࢟ኹଖኚ࿟ဍLj

໚ᒦJ

ဵVWMP0FO፛୭ࡼၒྜྷ࢟ഗLjW

VWMP

ဵVWMP0FO

VMS3

઩ታඡሢă

8 _______________________________________________________________________________________

ᒇࡵক࢟ྏ࿟ࡼ࢟ኹࡉࡵ઩ታ࢟ኹ,34/7WᆐᒏăጙࡡW
ࡍ᎖ᔈ௟VWMPඡሢ࢟ኹLjOESWఎဪఎNPTGFULj݀

፛୭࿟ࡼ࢟ኹă

DD

࢟ኹத

DD

JO

፿᎖঱ೡࣞMFEདࣅ໭ࡼ

ಭሣါĂED.ED!QXN఼ᒜ໭

V

CC

2V/div

MAX16801

PIN

V

IN

5V/div

0

100ms/div

ᅄ4/! ࡩNBY27912ࠀ᎖ᔈ௟ෝါሆLj໪ࣅဟࡼWJOW

DD

ሶ࢒ླྀᔝ࢒ྯླྀᔝࠅၒ࢟ถăྙ࢒ྯླྀᔝၒ߲୐
ೂ࢟ኹ঱᎖,:/8W )ᔈ௟VWMPࢅ࣡ඡሢ*Ljᐌ໪ࣅ߈ᅲ
߅Ljఎဪೌኚ৔ᔫă

ྙᏴ໪ࣅᅲ߅ᒄ༄W

ଢ଼ᒗ,:/8WጲሆLjᐌ໭ୈૄᒗ

JO

ࢅ࢟ഗVWMPᓨზăᑚᒬ༽ౚሆLjభᐐࡍD2౶ࡀ߼ᔗ৫ࡼ
࢟ถLjጲܣ࢒ྯླྀᔝ࿟୐ೂ໦ᔗ৫ࡼ࢟ኹă

````````````````````````````````` ྟ໪ࣅ

NBY279120NBY27913ࡼྟ໪ࣅᄂቶభဧMFE࢟ഗᏴ၊఼
ෝါሆዘቓຸ࿟ဍăࡩᅙಭVWMPᓨზઁఎဪྟ໪ࣅ߈ă
ଝᒗࡍ໭ᄴሤஂ࢛ࡼ࢟ኹᏴ71ntࡼྟ໪ࣅဟମด࠭1ᒇ
ሣ࿟ဍᒗ,2/34Wăᅄ5መာ೫1/6Bࡼ࢜ቯၒ߲࢟ഗᏴ໪ࣅ
߈ᒦࡼܤછ༽ౚăభᓖፀࡵMFE࢟ഗጲ୿ᄇါဍ঱ă
ᑚဵᎅ᎖ݧ፿೫ၫᔊྟ໪ࣅଆၣăᎧ໚჈໭ୈݙᄴࡼဵLj
ดᒙࡍ໭ࡼ૥ᓰ࢟ኹဵྟ໪ࣅࡼăᑚᒬถ୷࢐
఼ᒜMFE࢟ഗă

o৥ࡸNPTGFUఎདࣅ໭

OESW፛୭ถདࣅᅪݝo৥ࡸNPTGFUăOESWၒ߲ᎅดݝ
ᆮኹ໭)W
࣪᎖ᄰ፿ၒྜྷ࢟ኹࡒᎌܤኹ໭ࡼ።፿ዔLjჅݧ፿ࡼ
NPTGFUܘኍถߌ၊࢟Ꮞ࢟ኹᔢ঱ဟࡼᒇഗ࢟ຳᎧܤኹ໭
߱଀ࡼ࿴࢟ኹᒄă࣪᎖ࡍࣶၫݧ፿ೌኚgmzcbdlᅠແ
ࡼಭሣါ።፿ዔLjኊገࢾ࢟ኹᆐ711WࡼNPTGFUă
OESWถᏎ߲0ᇢྜྷި761nB02111nBᒋ࢟ഗăჅኡᐋ
ࡼNPTGFUޘညࡼࡴᄰႼఎႼܘኍᏴభ୻၊ࡼ
ᆍดă

NBY279120NBY27913۞౪ጙৈดݝᇙތࡍ໭Ljభ፿౶
ޟறཀྵ࢐ࢯஂMFE࢟ഗăಿྙLjᅄ6Ⴥာࡼ৆ಭါ࢟
ᏎăMFE࢟ഗࡼଐႯ৛ါྙሆǖ

*৙࢟Ljকดݝᆮኹ໭Ᏼดݝ࿸ᒙᆐᏖ,:/6Wă

DD

ดݝᇙތࡍ໭

NBY27912B0C0NBY27913B0C

0

10ms/div

ᅄ5/! ߱ဪ໪ࣅဟࡼ࢜ቯྟ໪ࣅ࢟ഗ

_______________________________________________________________________________________ 9

100mA/div

V

REF

=

R

7

໚ᒦW

I

LED

> ,2/34Wăࡍ໭ࡼᄴሤၒྜྷ࣡ᎅดݝೌ୻ᒗ

SFG

ၫᔊྟ໪ࣅ࢟വLjཀྵۣ໪ࣅ߈ᒦ૥ᓰ࢟ኹદൻ࿟ဍLj
݀୓ক૥ᓰ࢟ኹဗଝᒗক፛୭ăᑚዹభ༓ᒜMFE࢟ഗᏴჅ
ᎌᓨზሆ࣒ږᑍᎾࢾࡼါᎌኔ࢐ဍ঱ă

፿᎖঱ೡࣞMFEདࣅ໭ࡼ
ಭሣါĂED.ED!QXN఼ᒜ໭

``````````````````````````````` ።፿ቧᇦ

NBY27912፿᎖঱ೡࣞMFEདࣅ໭

ࡼ໪ࣅဟମఠ൅

JO๬വ࢟ྏD2፿᎖Ᏼ࢟വধধ઩ታဟኸႥᄋ৙৔ᔫ࢟ഗ
)ᅄ6*ăD2ࡼߛࡁ࢒ྯླྀᔝࡼೌ୻ါ௼ࢾ೫భ፿᎖໪
ࣅࡼᒲ໐ၫăࡍྏᒋD2ዓޠ೫໪ࣅဟମLjࡣถᏴ߱ဪ໪
ࣅ୿ࣤᄋ৙ৎࣶ࢟ጲᑽߒৎࣶࡼఎᒲ໐ăྙD2ࡼ
ྏᒋვቃLjกඐOESW୓඗ᎌᔗ৫ࡼဟମఎNPTGFULj
࠭ݙถᏴ࢒ྯླྀᔝ࿟୐ೂᔗ৫ࡼ࢟ኹᆐ໭ୈᄋ৙࢟ᏎLj
ᒘဧW
D2D3ኊݧ፿ࢅቛധ࢟ྏă

ଣࢾᏴࢅ࢟Ꮞ࢟ኹᓨზሆ )96WBDၒྜྷࡼᄰ፿ಭሣါ።፿*
ಭሣါMFEདࣅ໭྆ገᆒߒቃ᎖611ntࡼ໪ࣅဟମLj໪ࣅ
࢟ᔜS2።ถᄴဟᄋ৙໭ୈჅኊࡼᔢࡍ໪ࣅມᒙ࢟ഗ)ᔢތ
ᓨზሆ:1μ B*ᆐD2ĂD3ߠ࢟Ⴥኊࡼ࢟ഗăᏴᎾ໐ࡼ
611nt໪ࣅဟମดLj๬വ࢟ྏD3ܘኍۻߠ࢟ࡵ,:/6WLj
D2ܘኍߠ࢟ࡵ,35Wă

ᎅ᎖NBY27912ดݝᎌ71ntࡼྟ໪ࣅဟମLjD2ܘኍࡀ߼ᔗ

NBY27912B0C0NBY27913B0C

৫ࡼ࢟Ljጲܣᒗ࿩Ᏼᑚࣤဟମดሶ໭ୈ৙።࢟ഗă፿
ጲሆ৛ါத႒ଐႯჅኊࡼ࢟ྏᒋǖ

໚ᒦJ
ဵR2ࡼᔐᐜ૵࢟LjgTXဵNBY27912ࡼఎຫൈ)373lI{*Lj
W
ମ)71nt*ă

ಿྙǖ

ଢ଼ᒗ,:/8Wጲሆă໭ୈૄVWMPᓨზݙถ໪ࣅă

JO

IQ f

=×

g gtot SW

C

=

1

ဵ໪ࣅઁNBY27912ࡼดݝ࢟Ꮞ࢟ഗ)2/5nB*LjR

JO

ဵᔈ௟VWMPᒣૄ࢟ኹ)22/:W*LjuTTဵดݝྟ໪ࣅဟ

IZTU

8 262 2 1

Ig nC kHz mA

()( ) .

=× =

14 21 60

mA mA ms

..

()

1

C

=

IIt

+

()

IN g SS

+

()

V

HYST

×

()

12

V

()

=μ

17 5

.

hupu

F

ଣ࿸ D2 ? D3Ljᐌږጲሆ৛ါଐႯS2ǖ

×

VC

SUVR

=

I

C

1

500

()

VV

IN MIN SUVR

1

=

R

໚ᒦW
VWMP઩ታ࢟ຳ)ᔢࡍᒋ,34/7W*LjJ
Ꮞ࢟ഗ)ᔢࡍᒋ:1μB*ă

ಿྙLjୣഗၒྜྷ࢟ኹནᔢቃᒋ96WဟLjᎌǖ

࢟ᔜནܪᓰᒋ231lΩă
ྙᏤ኏ৎޠࡼ໪ࣅဟମLjᐌS2ᔜᒋభኡནࡻ܈࿟ၤଐ

ႯᒋৎࡍጙቋLjᑚዹభጲଢ଼ࢅক࢟ᔜࡼ৖ă
࿟ၤ໪ࣅښభ፿᎖ಢ႒᎖ᅄ6ࡼ࢟വăক࢟വᒦ࢒ྯླྀ

ᔝᎧၒ߲ླྀᔝᄴሤăፐྀဟମ࢒ྯླྀᔝࡼ࢟ኹᎧၒ
߲࢟ኹᔐ߅ᑵ܈Lj݀ၒ߲࢟ኹள಼ሤᄴࡼྟ໪ࣅ߈ă
D2࠭,33W࢟ᒗ,21Wࡼᔢ࣢࢟ဟମܘኍࡍ᎖71ntࡼྟ
໪ࣅဟମă

ဣሚᔈ௟ࡼ഍ጙৈဵᏴࢯஂၒ߲࢟ኹࡼླྀᔝᒄᅪݧ
፿ጙৈࣖೂࡼມᒙླྀᔝLj݀ဧມᒙླྀᔝᎧNPTGFUࡴᄰဟ
ମᄴሤ)ݬ୅ᅄ:*ăᏴࠥ༽ౚሆLjჅኊࡼ࢟ྏᒋ௓ቃࣶ೫ă

཭LjᏴᑚᒬါሆLjၒྜྷ࢟ኹᆍܘኍቃ᎖3;2ăᏴ௼
ࢾມᒙླྀᔝဵᎧၒ߲ᄴሤဟLjથᎌ഍ጙৈኊገఠ൅ࡼ
ᆰᄌăྙᄴሤLjᐌMFEདࣅ࢟വ્Ᏼၒ߲࣢വᓨზሆࡌ
ᡅྟ໪ࣅăࡣဵLjྙມᒙླྀᔝᎧNPTGFUࡴᄰဟମᄴ
ሤLj௓ݙ௥ᎌকᄂቶă

ဵ።፿ᒦࡼᔢቃၒྜྷ࢟ኹLjW

JO)NJO*

24 15

×

VμF

()

I

=

C1

1

R

500

()

120

=

V

072 90

mA A

.()+μ

()

1

ms

−

()

+

II

C START

1

TUBSU

()

ms

−

224

072

=

.

V

=Ω

ဵᔈ௟

TVWS

ဵ໪ࣅဟJO࿟ࡼ࢟

mA

119

k

࢟ྏᒋནܪᓰᒋ26μGă

10 ______________________________________________________________________________________

፿᎖঱ೡࣞMFEདࣅ໭ࡼ

ಭሣါĂED.ED!QXN఼ᒜ໭

።፿࢟വ

ᅄ6৊߲೫ጙৈ૥᎖NBY27912ࡼಭሣါIC! MFEདࣅ໭።
፿࢟വăܤኹ໭U2భࡍࡍᄋ঱࿸ଐࡼഉ૚ቶăดݝᇙތ
ࡍ໭భဣሚޟறཀྵࡼMFE࢟ഗ఼ᒜă

ᅄ7৊߲೫ጙৈ௥ᎌሣቶೡࣞࢯஂ৖ถࡼೌኚgmzcbdl
MFEདࣅ໭ăMFEᔐ࢟ኹభࢅ᎖૞঱᎖ၒྜྷ࢟ኹă

V

SUPPLY

R1

IN

ᅄ8৊߲೫ጙৈೌኚࡴᄰෝါࡼIC! MFE! cvdlདࣅ໭Lj௥
ᎌሣቶࢯLjᒑኊ࿩೟ࡼᅪݝᏄୈă

ᅄ9৊߲೫ጙৈ૥᎖NBY27912Ăݧ፿ࢅຫQXNါࢯ
ࡼಭሣါ৆ಭgmzcbdl IC MFEདࣅ໭ăQXNቧኊገሤ
)ݬ୅

৖ถౖᅄ

*ăܤኹ໭U2ᄋ৙ڔཝ৆ಭLj৔ᔫ᎖ᄰ፿ୣ

ഗ࢟Ꮞ)96WBDᒗ376WBD*ă

D1

R2

NDRV

T1

D2

C4

Q1

V

OUT

LEDs

NBY27912B0C0NBY27913B0C

C1

V

CC

C2

C3

COMP GND

R6

GND

ᅄ6/! ಭሣါĂ৆ಭĂgmzcbdl!MFEདࣅ໭Lj௥ᎌభܠ߈ၒྜྷ໪ࣅ࢟ኹ

DIM/FB UVLO/EN

MAX16801

R5

CS

R7R4

R3

______________________________________________________________________________________ 11

፿᎖঱ೡࣞMFEདࣅ໭ࡼ
ಭሣါĂED.ED!QXN఼ᒜ໭

V

IN

10.8V TO 24V

R1

R2

DIMMING

ᅄ7/! ௥ᎌೡࣞࢯஂ৖ถࡼNBY27913! gmzcbdl!IC! MFEདࣅ໭Ljၒྜྷ࢟ኹᆍ21/9Wᒗ35W

NBY27912B0C0NBY27913B0C

10.8V TO 24V

R3

GND

V

IN

R1

R2

UVLO/EN

DIM/FB

COMP

UVLO/EN

DIM/FB

COMP

1

2

MAX16802B

3

CS

4

R4

C1

1

2

MAX16802B

3

CS

4

IN

8

V

CC

7

NDRV

6

GND

5

IN

8

V

CC

7

NDRV

6

GND

5

C2 C3

L1

C4

D1

Q1

R5

D1

C4

L1

Q1

LED(s)

LED(s)

R3

DIMMING

C1

GND

R4

C2 C3

R5

ᅄ8/! ௥ᎌೡࣞࢯஂ৖ถࡼNBY27913! cvdl!IC! MFEདࣅ໭Ljၒྜྷ࢟ኹᆍ21/9Wᒗ35W

12 ______________________________________________________________________________________

፿᎖঱ೡࣞMFEདࣅ໭ࡼ

ಭሣါĂED.ED!QXN఼ᒜ໭

UNIVERSAL

AC INPUT

BRIDGE

RECTIFIER

OPTIONAL ONLY WHEN PWM DIMMING IS USED

C4

R1

C3

V

CC

IN

MAX16801B

C1

*PWM

*WARNING: PWM DIMMING SIGNAL IS SHOWN AT THE PRIMARY SIDE.
USE AN OPTOCOUPLER FOR SAFETY ISOLATION OF THE PWM SIGNAL.

C2

DIM/FB UVLO/EN

NDRV

GND

NBY27912B0C0NBY27913B0C

D1D3

R2

CS

R3

T1

D2

Q1

LEDs

C6

R4

C5

ᅄ9/! ᄰ፿ୣഗၒྜྷĂಭሣါĂ৆ಭቯgmzcbdl! IC!MFEདࣅ໭Ljݧ፿ࢅຫQXNࢯ

D1

+V

IN

U2

OPTO TRANS

GND

R1

IN

C1

V

CC

R7

COMP GND

R5

R6

DIM/FB UVLO/EN

C2

MAX16801

R2

NDRV

CS

R3

ᅄ:/! ᄰ፿ၒྜྷĂಭሣါĂ৆ಭቯgmzcbdl! IC!MFEདࣅ໭Lj௥ᎌ঱றࣞ࢟ഗࢯஂᄂቶ

T1

D3

Q1

C4

R4

C5

V

OUT

OPTO LED

R11

U3
TLV431

U2

R8

C3

R9

R10

Z1

______________________________________________________________________________________ 13

፿᎖঱ೡࣞMFEདࣅ໭ࡼ
ಭሣါĂED.ED!QXN఼ᒜ໭

`````````````````````````````````````````````````````````````````````````` ৖ถౖᅄ

V

CC

UVLO/EN

COMP

IN

IN

CLAMP

26.1V

BOOTSTRAP UVLO**

DIGITAL

SOFT-START

REFERENCE

1.23V

21.6V

9.74V

1.28V

1.23V

UVLO

IN

REGULATOR

REG_OK

V

CC

V

L

(INTERNAL 5.25V SUPPLY)

DIM/FB

ERROR

AMP

CPWM

LIM

*OSCILLATOR

262kHz

MAX16801

V

0.3V

1.38V

CS

V

OPWM

NBY27912B0C0NBY27913B0C

CS

MAX16802

``````````````````````````````` ኡቯᒎฉ

STARTUP
VOLTAGE

(V)

PART

BOOTSTRAP

UVLO

MAX16801A Yes 22 50

MAX16801B Yes 22 75

MAX16802A No 10.8* 50

MAX16802B No 10.8* 75

*

NBY27913඗ᎌดݝᔈ௟VWMPă

፛୭࢟ኹ঱᎖,8W )JO፛୭࢟ኹᆐ,21/9Wဟࡼۣᑺၒ߲*Lj

W

DD

݀༦VWMP0FO፛୭ᆐ঱࢟ຳဟNBY27913ఎဪ৔ᔫă

MAX DUTY
CYCLE (%)

DRIVER

S

Q

R

THERMAL

SHUTDOWN

*MAX16801A/MAX16802A: 50% MAXIMUM DUTY CYCLE
MAX16801B/MAX16802B: 75% MAXIMUM DUTY CYCLE
**MAX16801 ONLY

NDRV

GND

``````````````````````````````` ፛୭๼ᒙ

TOP VIEW

UVLO/EN

DIM/FB

COMP

1

2

MAX16801

3

MAX16802

CS

4

μMAX

IN

8

V

7

CC

6

NDRV

GND

5

14 ______________________________________________________________________________________