NCP3066 查看數據表（PDF） - ON Semiconductor

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NCP3066

Up to 1.5 A Constant Current Switching Regulator for LEDs with ON/OFF Function

ON Semiconductor 

NCP3066, NCV3066

ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, −40°C < TJ < +125°C for NCV3066, 0°C < TJ < +85°C for NCP3066 unless

otherwise specified)

Symbol

Characteristic

Conditions

Min

Typ

Max

Unit

OSCILLATOR

fOSC

Frequency

IDISCHG/ICHG Discharge to Charge Current Ratio

IDISCHG Capacitor Discharging Current

ICHG

Capacitor Charging Current

VIPK(Sense) Current Limit Sense Voltage

OUTPUT SWITCH (Note 6)

(VPin5 = 0 V, CT = 2.2 nF,

110

TJ = 25°C)

(Pin 7 to VCC, TJ = 25°C)

5.5

(Pin 7 to VCC, TJ = 25°C)

(Pin 7 to VCC, TJ = 25°C)

(TJ = 25°C) (Note 7)

165

150

6.0

1650

275

200

190

kHz

6.5

−

mA

mA

235

mV

VSWCE(DROP) Darlington Switch Collector to

Emitter Voltage Drop

(ISW = 1.0 A, TJ = 25°C)

(Note 6)

1.0

1.3

V

IC(OFF) Collector Off−State Current

COMPARATOR

(VCE = 40 V)

1.0

10

mA

VTH

Threshold Voltage

REGLiNE Threshold Voltage Line Regulation

ICII in

Input Bias Current

ON/OFF FEATURE

TJ = 25°C

TJ = 0°C to 85°C

TJ = −40°C to +125°C

(VCC = 3.0 V to 40 V)

(Vin = Vth)

−5%

−10%

−6.0

−1000

235

235

235

2.0

−100

mV

+5%

+10%

6.0

mV

1000

nA

VIH

ON/OFF Pin Logic Input Level High

VOUT = 0 V

VIL

ON/OFF Pin Logic Input Level Low

VOUT = Nominal Output Voltage

IIH

ON/OFF Pin Input Current

ON/OFF Pin = 5 V (ON)

TJ = 25°C

TJ = 0°C to +85°C

J = 25°C

TJ = 0°C to +85°C

TJ = 25°C

2.2

−

2.4

−

−

V

−

−

−

1.0

V

−

−

0.8

15

mA

IIL

ON/OFF Pin Input Current

ON/OFF Pin = 0 V (OFF)

TJ = 25°C

1.0

mA

TON_MIN ON/OFF Pin Minimum Width

TOTAL DEVICE

TJ = 25°C

50

ms

ICC

Supply Current

(VCC = 5.0 V to 40 V,

CT = 2.2 nF, Pin 7 = VCC,

VPin 5 > Vth, Pin 2 = GND,

remaining pins open)

7.0

mA

ISTBY

Standby Quiescent Current

ON/OFF Pin = 5.0 V (OFF)

TJ = 25°C

TJ = −40°C to +125°C

mA

85

120

120

TSHD

Thermal Shutdown Threshold

160

°C

TSHDHYS Hysteresis

10

°C

6. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.

7. The VIPK (Sense) Current Limit Sense Voltage is specified at static conditions. In dynamic operation the sensed current turn−off value

depends on comparator response time and di/dt current slope. See the Operating Description section for details.

8. NCV prefix is for automotive and other applications requiring site and change control and extended operating temperature conditions.

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