MAX1969EUI datasheet(3/16 Pages) MAXIM

Part #	MAX1969EUI

Description	Power Drivers for Peltier TEC Modules

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Manufacturer	MAXIM [Maxim Integrated Products]

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MAX1968/MAX1969

Power Drivers for Peltier TEC Modules

Maxim Integrated | 3

www.maximintegrated.com

Electrical Characteristics (continued)

(VDD = PVDD1 = PVDD2 = SHDN = 5V, PGND1 = PGND2 = FREQ = GND, CTLI = MAXV = MAXIP = MAXIN = REF, CREF = 1µF,

CCOMP = 0.01µF, LLX_ = 3.3µH, CCS = COS2 = 1µF, ITEC < 3ARMS (MAX1968), ITEC < 6ARMS (MAX1969), TA = 0°C to +85°C, unless

otherwise noted. Typical values are at TA = +25

°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VLX = 0, TA = +25°C

0.02

10

VLX = 0, TA = +85°C

1

PFET Leakage

ILEAK(P)

µA

VDD = 5V

32

100

No Load Supply

Current

IDD

(NO LOAD)

VDD = 3.3V

20

30

mA

Shutdown Supply

Current

IDD-SD

VDD = 5V (Note 2)

2

3

mA

Thermal Shutdown

TSHUTDOWN Hysteresis = 15°C

+165

°C

VDD rising

2.4

2.6

2.8

UVLO Threshold

VUVLO

VDD falling

2.25

2.5

2.75

V

Switching Frequency

Internal Oscillator

fSW-INT

FREQ = GND

400

550

650

kHz

OS1, OS2, CS Input

Current

IOS1,

IOS2, ICS

0 or VDD

-100

+100

µA

SHDN, FREQ Input

Current

ISHDN,

IFREQ

0 or VDD

-5

+5

µA

SHDN, FREQ Input

Low Voltage

VIL

VDD = 3V to 5.5V

VDD x

0.25

V

SHDN, FREQ Input

High Voltage

VIH

VDD = 3V to 5.5V

VDD x

0.75

V

VMAXV = VREF x 0.67, VOS1 to VOS2 =

±4V, VDD = 5V

-2

+2

%

MAXV Threshold

Accuracy

VMAXV = VREF x 0.33, VOS1 to VOS2 =

±2V, VDD = 3V

-2

+2

%

MAXV, MAXIP, MAXIN

Input Bias Current

IMAXV-BIAS,

IMAXI_-BIAS

VMAXV = VMAXI_ = 0.1V or 1.5V

-0.1

+0.1

µA

CTLI Gain Accuracy

ACTLI

VCTLI = 0.5V to 2.5V (Note 3)

9.5

10

10.5

V/V

CTLI Input Resistance

RCTLI

1M

Ω terminated at REF

0.5

1.0

2.0

M

Ω

Error-Amp

Transconductance

gm

50

100

175

µA/V

ITEC Accuracy

VOS1 to VCS = +100mV or -100mV

-10

+10

%

ITEC Load Regulation

ΔVITEC

VOS1 to VCS = +100mV or -100mV,

IITEC =

±10µA

-0.1

+0.1

%

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