ADP3159 datasheet(2/16 Pages) AD

2 / 16 page

REV. A

–2–

ADP3159/ADP3179–SPECIFICATIONS1 (VCC = 12 V, T

A = 0 C to 70 C, unless otherwise noted.)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

FEEDBACK INPUT

Output Accuracy

VFB

1.3 V Output

Figure 1

1.289

1.3

1.311 V

1.65 V Output

Figure 1

1.637

1.65

1.663 V

2.05 V Output

Figure 1

2.034

2.05

2.066 V

Line Regulation

∆VOUT

VCC = 10 V to 14 V

0.06

Crowbar Trip Point

VCROWBAR

% of Nominal DAC Voltage

115

120

125

Crowbar Reset Point

% of Nominal DAC Voltage

Crowbar Response Time

tCROWBAR

Overvoltage to DRVL Going High

400

VID INPUTS

Input Low Voltage

VIL(VID)

0.6

Input High Voltage

VIH(VID)

2.0

Input Current

IVID

VID(X) = 0 V

185

250

µA

Pull-Up Resistance

RVID

Ω

Internal Pull-Up Voltage

5.0

5.4

5.7

OSCILLATOR

Off Time

TA = 25

°C, CT = 200 pF

3.5

4.0

4.5

µs

CT Charge Current

ICT

TA = 25

°C, VOUT in Regulation

130

150

170

µA

TA = 25

°C, VOUT = 0 V

µA

ERROR AMPLIFIER

Output Resistance

RO(ERR)

Ω

Transconductance

gm(ERR)

2.05

2.2

2.35

mmho

Output Current

IO(ERR)

FB– Forced to VOUT – 3%

625

µA

Maximum Output Voltage

VCOMP(MAX) FB– Forced to VOUT – 3%

3.0

Output Disable Threshold

VCOMP(OFF)

600

750

900

–3 dB Bandwidth

BWERR

COMP = Open

500

kHz

CURRENT SENSE

Threshold Voltage

VCS(TH)

FB– Forced to VOUT – 3%

FB–

≤ 0.45 V

0.8 V

≤ COMP ≤ 1 V

Input Bias Current

ICS+, ICS–

CS+ = CS– = VOUT

0.5

µA

Response Time

tCS

CS+ – (CS–)

> 87 mV to DRVH

Going Low

OUTPUT DRIVERS

Output Resistance

RO(DRV(X))

IL = 50 mA

Ω

Output Transition Time

tR, tF

CL = 3000 pF

LINEAR REGULATORS

Feedback Current

ILRFB(X)

0.3

µA

LR1 Feedback Voltage

VLRFB(1)

ADP3159 Figure 2, VCC = 4.5 V to 12.6 V

2.44

2.5

2.56

ADP3179 Figure 2, VCC = 2-4.5 V to 12.6 V

0.97

1.0

1.03

LR2 Feedback Voltage

VLRFB(2)

ADP3159 Figure 2, VCC = 4.5 V to 12.6 V

1.75

1.8

1.85

ADP3179 Figure 2, VCC = 2-4.5 V to 12.6 V

0.97

1.0

1.03

Driver Output Voltage

VLRDRV(X)

VCC = 4.5 V, VLRFB(X) = 0 V

4.2

POWER GOOD COMPARATOR

Undervoltage Threshold

VPWRGD(UV)

% of Nominal DAC Voltage

Undervoltage Hysteresis

% of Nominal DAC Voltage

Overvoltage Threshold

VPWRGD(OV)

% of Nominal DAC Voltage

115

120

125

Overvoltage Reset Point

% of Nominal DAC Voltage

Output Voltage Low

VOL(PWRGD)

IPWRGD(SINK) = 1 mA

250

500

Response Time

250

SUPPLY

DC Supply Current

ICC

UVLO Threshold Voltage

VUVLO

6.75

7.25

UVLO Hysteresis

0.8

1.2

NOTES

1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC).

2Dynamic supply current is higher due to the gate charge being delivered to the external MOSFETs.

Specifications subject to change without notice.

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