NCV8669 datasheet(5/14 Pages) ONSEMI

Part #	NCV8669

Description	Very Low Iq 150 mA LDO Regulator with Reset and Early Warning

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NCV8669

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ELECTRICAL CHARACTERISTICS Vin = 13.2 V, VDT = GND, RSI_ext not used, Cin = 0.1 mF, Cout = 2.2 mF, for typical values TJ =

25°C, for min/max values TJ = −40°C to 150°C; unless otherwise noted. (Notes 9 and 10)

Parameter

Unit

Max

Typ

Min

Symbol

Test Conditions

RESET OUTPUT RO

Reset Output Low Voltage

Vout > 1 V, IRO < 200 mA

VROL

−

0.15

0.25

V

Reset Output High Voltage

VROH

4.5

−

V

Integrated Reset Pull Up Resistor

RRO

15

30

50

kW

Reset Delay Time (Note 14)

DT connected to GND

DT connected to Vout

tRD

12.8

25.6

16

32

19.2

38.4

ms

Reset Reaction Time (see Figure 24)

tRR

16

25

38

ms

EARLY WARNING (SI and SO)

Early Warning Input Voltage Threshold

(Preset EW Threshold Values)

NCV8669y2

High

Low

RSI1 = 480 kW, RSI2 = 520 kW

(internal resistor divider values, see )

RSI_ext = 150 kW (±1%, ±100 ppm/°C)

(external resistor value, see Figure 22)

Vin_EW(th)

5.67

5.30

6.30

5.89

6.92

6.47

V

Integrated Sense Output Pull Up Resistor

RSO

15

30

50

kW

Sense Output Low Voltage

Vin < Vin_EW(th)_Low_Min, ISO < 200 mA, Vout > 1 V

VSOL

−

0.15

0.25

V

Sense Output High Voltage

VSOH

4.5

−

V

Maximum Sense Output Sink Current

VSO = 0.25 V

Vin < Vin_EW(th)_Low_Min

Vout = 4.5 V

ISOmax

1.75

−

mA

THERMAL SHUTDOWN

Thermal Shutdown Temperature (Note 12)

TSD

150

175

195

°C

Thermal Shutdown Hysteresis (Note 12)

TSH

−

25

−

°C

9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.

10.Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [TJ. Low duty

cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

11. Measured when output voltage falls 100 mV below the regulated voltage at Vin = 13.2 V.

12.Values based on design and/or characterization.

13.Iq for Preset EW Threshold Options is measured when RSI_ext is not used. For typical values of Iq vs RSI_ext see Figure 23.

14.See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options

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