MAX828 MAX829

http://onsemi.com

2

PIN DESCRIPTION

Pin No.

Symbol

Description

1

OUT

Inverting charge pump output

2

VIN

Positive power supply input

3

C–

Commutation capacitor negative terminal

4

GND

Ground

4

C+

Commutation capacitor positive terminal

ABSOLUTE MAXIMUM RATINGS*

Symbol

Parameter

Value

Unit

Input Voltage (VIN to GND)

+6.0, – 0.3

V

Output Voltage (OUT to GND)

–6.0, +0.3

V

Current at OUT Pin

50

mA

Short–Circuit Duration – OUT to GND

Indefinite

TA

Operating Temperature Range

–40 to +85

°C

PD

Power Dissipation (TA ≤ 70°C) SOT–23–5

Derate by 4mW/

°C for TA > 70°C

240

mW

Tstg

Storage Temperature Range

–65 to +150

°C

Tsol

Lead Temperature (Soldering, 10 Seconds)

+300

°C

* Maximum Ratings are those values beyond which damage to the device may occur.

otherwise noted

Symbol

Characteristic

Min

Typ

Max

Unit

IDD

Supply Current (TA = 25°C)

MAX828

MAX829

—

—

50

115

90

260

µA

V+

Supply Voltage Range (RLOAD = 10kW)

—

—

5.5

V

FOSC

Oscillator Frequency (TA = 25°C)

MAX828

MAX829

8.4

24.5

12

35

15.6

45.5

kHz

PEFF

Power Efficiency

ILOAD = 3mA, TA = 25°C

—

96

—

%

VEFF

Voltage Conversion Efficiency (RLOAD = R)

95

99.9

%

ROUT

Output Resistance (Note 1.)

IOUT = 5mA, TA = 25°C

TA = 0°C to +85°C

—

—

25

—

50

65

W

1. Capacitors C1 and C2 contribution is approximately 20% of the output impedance. For additional information, refer to Equation 1 in the

Applications Information section.

unless otherwise noted

Symbol

Characteristic

Min

Typ

Max

Unit

IDD

Supply Current

MAX828

MAX829

—

—

—

—

115

325

µA

Vin

Supply Voltage Range (RLOAD = 10kW)

1.5

—

5.5

V

FOSC

Oscillator Frequency

MAX828

MAX829

6.0

19

—

—

20

54.3

kHz

ROUT

Output Resistance (IOUT = 5mA)

—

—

65

W

2. All –40

°C to +85°C specifications are guaranteed by design.