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Fabricante

NCP3065

Up to 1.5 A Constant Current Switching Regulator for LEDs

ON Semiconductor 

NCP3065, NCV3065

ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, TJ = -40°C to +125°C, unless otherwise specified)

Characteristic

Conditions

Symbol

Min

Typ

Max

Unit

OSCILLATOR

Frequency

Discharge to Charge Current Ratio

Capacitor Discharging Current

Capacitor Charging Current

Current Limit Sense Voltage

OUTPUT SWITCH (Note 6)

(VPin 5 = 0 V, CT = 2.2 nF,

fOSC

110

TJ = 25°C)

(Pin 7 to VCC, TJ = 25°C)

IDISCHG /

5.5

ICHG

(Pin 7 to VCC, TJ = 25°C)

IDISCHG

(Pin 7 to VCC, TJ = 25°C)

ICHG

(TJ = 25°C) (Note 7)

VIPK(Sense)

165

150

6.0

1650

275

185

190

kHz

6.5

-

mA

mA

235

mV

Darlington Switch Collector to

Emitter Voltage Drop

Collector Off-State Current

COMPARATOR

(ISW = 1.0 A,

TJ = 25°C) (Note 6)

(VCE = 40 V)

VSWCE(DROP)

IC(OFF)

1.0

1.3

V

0.01

100

mA

Threshold Voltage

Threshold Voltage Line Regulation

Input Bias Current

TOTAL DEVICE

TJ = 25°C

TJ = 0 to +85°C

TJ = -40°C to +125°C

(VCC = 3.0 V to 40 V)

(Vin = Vth)

VTH

VTH

REGLiNE

ICII in

-10

-6.0

-1000

235

±5

-100

mV

%

+10

%

6.0

mV

1000

nA

Supply Current

(VCC = 5.0 V to 40 V,

ICC

CT = 2.2 nF, Pin 7 = VCC,

VPin 5 > Vth, Pin 2 = GND,

remaining pins open)

7.0

mA

Thermal Shutdown Threshold

160

°C

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.

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