NCP1937C4DR2G datasheet(5/38 Pages) ONSEMI

Part #	NCP1937C4DR2G

Description	Combination Power Factor Correction and Quasi-Resonant Flyback Controllers for Adapters

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP1937

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Table 2. NCP1937 DEVICE OPTIONS

Device

Overload

Protection

Fault OTP

VBO(start) VBO(stop)

PFC

Disable

Time

PFC

Frequency

Clamp

Package

Shipping†

NCP1937A1DR2G

Auto−Recovery

Latch

111 V

97 V

0.5 s

250 kHz

SOIC−20

(Pb−Free)

2500 / Tape

& Reel

NCP1937A2DR2G

Auto−Recovery

Latch

111 V

97 V

0.5 s

131 kHz

NCP1937A3DR2G

Auto−Recovery

Latch

111 V

97 V

4 s

131 kHz

NCP1937B1DR2G

Auto−Recovery

111 V

97 V

0.5 s

250 kHz

NCP1937B2DR2G

Auto−Recovery

111 V

97 V

0.5 s

131 kHz

NCP1937B3DR2G

Auto−Recovery

111 V

97 V

4 s

131 kHz

NCP1937C1DR2G

Latch

111 V

97 V

0.5 s

250 kHz

NCP1937C4DR2G

Latch

111 V

97 V

13 s

131 kHz

NCP1937C61DR2G

Latch

101 V

87 V

4 s

131 kHz

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specification Brochure, BRD8011/D.

Table 3. MAXIMUM RATINGS (Notes 1 − 6)

Rating

Symbol

Value

Unit

High Voltage Startup Circuit Input Voltage

1

VHV/X2

−0.3 to 700

V

High Voltage Startup Circuit Input Current

1

IHV/X2

20

mA

High Voltage Brownout Detector Input Voltage

3

VBO/X2

−0.3 to 700

V

High Voltage Brownout Detector Input Current

3

IBO/X2

20

mA

PFC High Voltage Feedback Input Voltage

20

VPFBHV

−0.3 to 700

V

PFC High Voltage Feedback Input Current

20

IPFBHV

0.5

mA

PFC Low Voltage Feedback Input Voltage

18

VPFBLV

−0.3 to 9

V

PFC Low Voltage Feedback Input Current

18

IPFBLV

0.5

mA

PFC Zero Current Detection and Current Sense Input Voltage (Note 1)

16

VPCS/PZCD

−0.3 to

VPCS/PZCD(MAX)

V

PFC Zero Current Detection and Current Sense Input Current

16

IPCS/PZCD

−2/+5

mA

PFC Control Input Voltage

5

VPControl

−0.3 to 5

V

PFC Control Input Current

5

IPControl

10

mA

Supply Input Voltage

12

VCC(MAX)

−0.3 to 30

V

Supply Input Current

12

ICC(MAX)

30

mA

Supply Input Voltage Slew Rate

12

dVCC/dt

1

V/

ms

Fault Input Voltage

8

VFault

−0.3 to (VCC + 1.25)

V

Fault Input Current

8

IFault

10

mA

QR Flyback Zero Current Detection Input Voltage

11

VQZCD

−0.9 to (VCC + 1.25)

V

QR Flyback Zero Current Detection Input Current

11

IQZCD

−2/+5

mA

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

1. VPCS/PZCD(MAX) is the maximum voltage of the pin shown in the electrical table. When the voltage on this pin exceeds 5 V, the pin sinks

a current equal to (VPCS/PZCD − 5 V) / (2 kW). A VPSC/PZCD of 7 V generates a sink current of approximately 1 mA.

2. Maximum driver voltage is limited by the driver clamp voltage, VXDRV(high), when VCC exceeds the driver clamp voltage. Otherwise, the

maximum driver voltage is VCC.

3. Maximum Ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond

those indicated may adversely affect device reliability. Functional operation under absolute maximum–rated conditions is not implied.

Functional operation should be restricted to the Recommended Operating Conditions.

4. This device contains Latch−Up protection and exceeds

± 100 mA per JEDEC Standard JESD78.

5. Low Conductivity Board. As mounted on 80 x 100 x 1.5 mm FR4 substrate with a single layer of 50 mm2 of 2 oz copper traces and heat

spreading area. As specified for a JEDEC51−1 conductivity test PCB. Test conditions were under natural convection of zero air flow.

6. Pins 1, 3, and 20 are rated to the maximum voltage of the part, or 700 V.

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