NCV8876(2013) Просмотр технического описания (PDF) - ON Semiconductor

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NCV8876
(Rev.:2013)

Automotive Grade Start-Stop Non-Synchronous Boost Controller

ON Semiconductor 

NCV8876

ELECTRICAL CHARACTERISTICS (−40°C < TJ < 150°C, 4.25 V < VIN < 40 V, unless otherwise specified) Min/Max values are

guaranteed by test, design or statistical correlation.

Characteristic

Symbol

Conditions

Min

Typ

Max Unit

GENERAL

Quiescent Current, Sleep Mode

Quiescent Current, No switching

Iq,sleep

Iq,off

VOUT = 13.2 V, TJ = 25°C

Into VOUT pin, 6.8 V < VOUT < 7.2 V,

No switching

−

12

14

mA

−

2.2

4.0

mA

OSCILLATOR

Switching Frequency

FSW

Operating Range

NCV887600 153

−

501

kHz

NCV887601 153

−

501

ROSC Voltage

Default Switching

VROSC

−

1.0

−

V

FSW

ROSC = Open (NCV887600, NCV887601) 153

170

187

kHz

ROSC = 100 kW

180

200

220

ROSC = 20 kW

283

315

347

ROSC = 10 kW

409

455

501

Minimum Pulse Width

Maximum Duty Cycle

Slope Compensating Ramp

ton,min

Dmax

Sa

ROSC = OPEN

90

81

NCV887600 30

NCV887601 46

115

140

ns

83

85

%

34

38 mV/ ms

53

60

STATUS FLAG

STATUS Wake Up Delay

STATUS Pull−down Capability

VOUT < 7.2 V

Sinking 1.0 mA

−

9.3

14.0

ms

−

−

400

mV

CURRENT SENSE AMPLIFIER

Low−Frequency Gain

Bandwidth

ISNS Input Bias Current

Current Limit Threshold Voltage

Acsa

Input−to−output gain at dc, ISNS ≤ 1 V

0.9

1.0

1.1

V/V

BWcsa

Gain of Acsa − 3 dB

2.5

−

−

MHz

Isns,bias Out of ISNS pin

−

30

50

mA

Vcl

Voltage on ISNS pin

NCV887600 360

400

440

mV

NCV887601 180

200

220

Current Limit,

Response Time

Overcurrent Protection,

Threshold Voltage

tcl

%Vocp

CL tripped until GDRV falling edge,

VISNS = Vcl + 40 mV

Percent of Vcl

−

80

125

ns

125

150

175

%

Overcurrent Protection,

Response Time

tocp

From overcurrent event, Until switching

stops, VISNS = VOCP + 40 mV

VOLTAGE ERROR OPERATIONAL TRANSCONDUCTANCE AMPLIFIER

−

80

125

ns

Transconductance

VEA Output Resistance

VEA Maximum Output Voltage

VEA Sourcing Current

VEA Sinking Current

VEA Clamp Voltage

VC Delay

GATE DRIVER

gm,vea

Ro,vea

Vc,max

Isrc,vea

Isnk,vea

Vc,clamp

VOUT = ±100 mV

VEA output current, Vc = 2.0 V

VEA output current, Vc = 1.5 V

VOUT < 7.2 V

VOUT < 7.2 V

0.8

1.2

1.6

mS

2.0

−

−

MΩ

2.5

−

−

V

80

100

−

mA

80

100

−

mA

−

1.1

−

V

−

53

60

ms

Sourcing Current

Sinking Current

Isrc

VDRV ≥ 6 V,

VDRV − VGDRV = 2 V

Isink

VGDRV ≥ 2 V

NCV887600 550

800

−

mA

NCV887601 550

800

−

NCV887600 500

600

−

mA

NCV887601 500

600

−

Driving Voltage Dropout

Driving Voltage Source Current

Vdrv,do

Idrv

VOUT − VDRV, IvDRV = 25 mA

VOUT − VDRV = 1 V

−

0.3

0.6

V

35

45

−

mA

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