LTC1759CG データシートの表示（PDF） - Linear Technology

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LTC1759CG

Smart Battery Charger

Linear Technology 

LTC1759

ELECTRICAL CHARACTERISTICS

The q denotes specifications which apply over the full operating temperature range (TJ = 0°C to 100°C), otherwise specifications are

TA = 25°C. VCC = DCIN = 18V, VBAT1, 2 = 12.6V, VDD = 3.3V unless otherwise specified.

PARAMETER

BOOST Pin Current

VBOOST Threshold to Turn TGATE Off

(Note 6)

BOOSTC Pin Current

Sense Amplifier CA1 Gain and Input Offset Voltage

(With RS2 = RS3 = 200Ω)

(Measured Across RS1) (Note 4)

CA1 Bias Current (SENSE, BAT1)

CA1 Input Common Mode Range

SPIN Input Current

CL1 Turn-On Threshold

CL1 Transconductance

CLP Input Current

CLN Input Current

CA2 Transconductance

VA Transconductance (Note 5)

Gate Drivers

VGBIAS

VTGATE High (VTGAGE – VSW)

VBGATE High

VTGATE Low (VTGATE – VSW)

VBGATE Low

INFET “ON” Clamping Voltage (VCC – VINFET)

INFET “ON” Drive Current

INFET “OFF” Clamping Voltage

INFET “OFF” Drive Current

VTGATE, VBGATE at Shutdown

Trip Points

DCDIV Threshold

DCDIV Hysteresis

DCDIV Input Bias Current

Power-Fail Indicator (VBAT2 ≥ VDCIN) (Note 7)

Power-Fail Indicator Hysteresis (VBAT2 ≥ VDCIN)

SYNC Pin Threshold

SYNC Pin Input Current

CONDITIONS

VBOOST = VSW + 8V, 0V ≤ VSW ≤ 20V

TGATE High

TGATE Low

Measured at (VBOOST – VSW)

Low to High

Hysteresis

VBOOSTC = VCC + 8V

11V ≤ VCC ≤ 24V, 0V ≤ VBAT ≤ 20V

RSET = 4.93k

RSET = 49.3k

VSDB = High

VSDB = Low (Shutdown)

VSDB = High, VSPIN = 12.6V

VSDB = Low

0.5mA Output Current

Output Current from 50µA to 500µA

0.5mA Output Current

0.5mA Output Current

VC = 1V, IVC = ±1µA

Ouput Current from 50µA to 500µA

VCC ≥ 11V, IGBIAS ≤ 15mA, VSDB = High

ITGATE ≤ 20mA

IBGATE ≤ 20mA

ITGATE ≤ 50mA

IBGATE ≤ 50mA

VINFET = VCC – 6V

VCC Not Connected, IINFET < – 2µA

VCC = 12.4V, (VCC – VINFET) ≥ 2V

VSDB = Low, ITGATE = IBGATE = 10µA

VDCDIV Rising from 0.8V to 1.2V

VDCDIV = 1V

AC_PRESENT = 1, VDCIN = 6V

AC_PRESENT = 1, VDCIN = 6V

VSYNC = 0V

VSYNC = 2V

MIN TYP MAX

UNITS

2

3

mA

2

3

mA

q 6.8

7.1

7.3

V

0.25

V

1

mA

q 92

7

q

q – 0.25

q

87

0.5

150

0.21

100 108

10

13

– 50 –120

– 10

VCC – 0.3

2

10

92

97

1

3

1

3

0.8

2

200 300

0.6

1

mV

mV

µA

µA

V

mA

µA

mV

mho

µA

mA

µmho

mho

q 8.4

8.9

9.3

V

q 5.6

6.6

V

q 6.2

7.2

V

q

0.8

V

q

0.8

V

q 6.5

7.8

9

V

q

8

20

mA

1.4

V

–2.5

mA

q

1

V

q 0.9

1.0

1.1

V

25

mV

q

100

nA

q 0.84 0.89 0.94

V/V

0.02

V/V

0.9

1.4

2.0

V

– 500

µA

– 30

µA

3

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