NCP5009DMR2 Ver la hoja de datos (PDF) - ON Semiconductor

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NCP5009DMR2

Backlight LED Boost Driver

ON Semiconductor 

NCP5008, NCP5009

POWER SUPPLY SECTION (−25°C to +85°C ambient temperature, unless otherwise noted.)

Rating

Pin Symbol

Min

Typ

Max Unit

Power Supply

Power Supply Threshold Startup Voltage

Output Load Voltage Compliance

Pulsed Current Regulation Range

Continuous DC Current in the Load

Output Pulsed Current Tolerance @ Vbat = 3.6 V, L1 = 22 mH/0.71 W,

Rref "1%, ILED = 20 mA (Note 1)

10

Vbat

10

VbatThr

8

Vout

8

Iout

8

Iout

8

Iout

2.7

−

6.0

V

−

2.3

2.7

V

−

−

15.0

V

0

−

400

mA

−

−

75

mA

−

"5.0

−

%

Output Leakage @ LOCAL = 0, CS = H, Vout = 15 V, Vbat = 6.0 V

8

Iout

Standby Current @ Iout = 0 mA, CS = H, CLK = H, Vbat = VBIAS = 3.6 V

10

Istdb

Standby Current @ Iout = 0 mA, CS = H, CLK = H, Vbat = VBIAS = 6.0 V

10

Istdb

Operating Current @ Vbat = VBIAS = 3.6 V, Iref = 30 mA, CLK = H, CS = L,

10

Iope

LOCAL = Open

−

−

500

nA

−

3.0

−

mA

−

−

10

mA

−

600

−

mA

Boost Internal Oscillator Clock @ L1 = 22 mH, Vbat = VBIAS = 3.6 V,

Iout = 20 mA (Vout = 14 V)

−

Fosc

−

300

−

kHz

1. The tolerance refers to the 20 mA to 70 mA current range.

DIGITAL SECTION (−25°C to +85°C ambient temperature, unless otherwise noted.)

Rating

Pin Symbol

Min

Typ

Max

High Level Input Voltage

Low Level Input Voltage

Input Capacitance

(Note 2) 3, 5

(Note 2)

VIH

0.7*Vbat

−

Vbat

VIL

−

−

0.3*Vbat

Cin

−

10

−

High Level Input Voltage

Low Level Input Voltage

Input Capacitance

(Note 2) 6

VIH

(Note 2)

VIL

Cin

−

0.6*Vbat

−

−

0.4*Vbat

−

−

10

−

LOCAL Pullup Resistor

6

Rloc

20

−

80

LOCAL Leakage Current

9

ILoc

−

−

100

CS Pullup Resistor

3

Rcs

20

−

80

Minimum CS Low Time

3

Tcssetup

250

−

−

Clock Frequency

5

FCLK

−

−

5.0

CLOCK tr and tf

5 trCLK, tfCLK

10

−

−

Internal Register Clear

−

tclear

10

30

−

Internal Power on Reset Width

−

tPOR

−

100

−

2. Digital inputs undershoot < − 0.30 V, Digital inputs overshoot < 0.30 V.

Unit

V

V

pF

V

V

pF

kW

nA

kW

ns

MHz

ns

ns

ms

ANALOG SECTION (−25°C to +85°C ambient temperature, unless otherwise noted.)

Rating

Pin Symbol

Min

Typ

Max Unit

Output Voltage Range Reference @ 2.5 mA < Iref < 65 mA (Note 3)

1

Vref

1.20

1.24

1.28

V

Maximum Output Current Range Ratio

8

Iout

−

5595

−

−

Minimum Output Current Range Ratio

8

Iout

−

1119

−

−

Output Current Sense Resistor

10, 9

Rs

−

1.8

5.0

W

Output Voltage Range Reference @ 2.5 mA < Ipho < 65 mA

2

Vpho

1.20

1.24

1.28

V

Output Current Stabilization tdelay following a DC/DC startup

8

Ioutdly

−

100

−

ms

Internal NMOS Resistor @ Vbat = 3.6 V

8

QRDSON

−

2.2

3.0

W

Internal Comparator Delay Time

−

Tdcomp

−

60

−

ns

3. The overall tolerance depends upon the accuracy of the external resistor. Using a 1%/low PPM metal film resistor is recommended to achieve

"5% output current tolerance.

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