Boost Regulator with Integrated Charge Pumps,

Switch Control, and High-Current Op Amp

6

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ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

NEGATIVE CHARGE-PUMP REGULATOR

6

18

V

-2%

1

+2%

V

FBN Input Bias Current

-50

+50

nA

FBN Line Regulation Error

0.2

%/V

DRVN PCH On-Resistance

6

DRVN NCH On-Resistance

3

Negative Charge-Pump Soft-Start Period

7-bit voltage ramp with filtering to prevent

high peak currents

5

ms

POSITIVE GATE-DRIVER TIMING AND CONTROL SWITCHES

CTL Input Low Voltage

0.6

V

CTL Input High Voltage

2

V

CTL Input Current

-1

+1

µA

SRC Input Voltage Range

36

V

SRC-to-COM Switch On-Resistance

10

DRN-to-COM Switch On-Resistance

60

COM-to-GND Pulldown

1.5

2.5

k

600

µA

SRC Input Current

360

µA

OPERATIONAL AMPLIFIERS

SUP Supply Range

6

18

V

3.8

4

4.2

V

SUP Supply Current

6.5

mA

Input Offset Voltage

8

mV

Input Bias Current

-1

+1

µA

Input Common-Mode Voltage Range

0

V

Output-Voltage-Swing High

350

mV

Output-Voltage-Swing Low

350

mV

Sourcing

500

Short-Circuit Current

Sinking

500

mA

XAO CONTROL

RSTIN Threshold

Falling edge

1.22

1.28

V

RSTIN Input Current

-1

+1

µA

RST Output Voltage

0.4

V

RST Blanking Time

160

280

ms

XAO UVLO

1.7

V

Note 1: -40

°C specifcations are guaranteed by design, not production tested.