Electrical characteristics (continued) – Rainbow Electronics MAX17075 User Manual

Page 6

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MAX17075

Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp

6

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

CC

= +5V, Circuit of Figure 1, V

AVDD

= V

SUP

= +13V, T

A

= -40°C to +85°C, unless otherwise noted.) (Note 1)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

NEGATIVE CHARGE-PUMP REGULATOR

V

SUP

Input Supply Range

6

18

V

FBN Regulation Voltage (V

REF

- V

FBN

) V

REF

- V

FBN

= 1V

-2%

1

+2%

V

FBN Input Bias Current

V

FBN

= 0, T

A

= +25

°C -50

+50

nA

FBN Line Regulation Error

V

SUP

= 9V to 18V, V

GOFF

= -7V

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

V

CTL

= 0 or V

VCC

, T

A

= +25

°C -1

+1

μA

SRC Input Voltage Range

36

V

SRC-to-COM Switch On-Resistance

V

DEL

= 1.5V, CTL = VCC

10



DRN-to-COM Switch On-Resistance

V

DEL

= 1.5V, CTL = AGND

60



COM-to-GND Pulldown

V

DEL

= 0

1.5

2.5

k



V

DEL

= 1.5V, CTL = VCC

600

μA

SRC Input Current

V

DEL

= 1.5V, CTL = AGND

360

μA

OPERATIONAL AMPLIFIERS

SUP Supply Range

6

18

V

V

SUP

Undervoltage Threshold

3.8

4

4.2

V

SUP Supply Current

Buffer configuration, V

POS =

V

SUP

/2,

no

load

6.5 mA

Input Offset Voltage

V

NEG

, V

POS

= V

SUP

/2, T

A

= +25

°C

8

mV

Input Bias Current

V

NEG

, V

POS

= V

SUP

/2, T

A

= +25

°C -1

+1

μA

Input Common-Mode Voltage Range

0

V

SUP

V

Output-Voltage-Swing High

I

OUT =

50mA

V

SUP

-

350

mV

Output-Voltage-Swing Low

I

OUT =

-50mA

350

mV

Sourcing 500

Short-Circuit Current

Sinking 500

mA

XAO CONTROL

RSTIN Threshold

Falling edge

1.22

1.28

V

RSTIN Input Current

T

A

= +25

°C -1

+1

μA

RST Output Voltage

I

SINK

= 1mA

0.4

V

RST Blanking Time

Counting from V

VCC

crossing 2.25V

160

280

ms

XAO UVLO

V

CC

rising with typical hysteresis of 50mV

1.7

V

Note 1: -40

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

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