MAX1968 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1968

Power Drivers for Peltier TEC Modules

Maxim Integrated 

MAX1968/MAX1969

Power Drivers for Peltier TEC Modules

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

PFET Leakage

SYMBOL

ILEAK(P)

CONDITIONS

VLX = 0, TA = +25°C

VLX = 0, TA = +85°C

MIN

TYP

MAX

UNITS

0.02

10

1

µA

No Load Supply

Current

Shutdown Supply

Current

IDD

VDD = 5V

(NO LOAD) VDD = 3.3V

IDD-SD VDD = 5V (Note 2)

Thermal Shutdown

UVLO Threshold

Switching Frequency

Internal Oscillator

TSHUTDOWN

VUVLO

Hysteresis = 15°C

VDD rising

VDD falling

fSW-INT FREQ = GND

OS1, OS2, CS Input

Current

SHDN, FREQ Input

Current

SHDN, FREQ Input

Low Voltage

SHDN, FREQ Input

High Voltage

IOS1,

IOS2, ICS

ISHDN,

IFREQ

0 or VDD

0 or VDD

VIL

VDD = 3V to 5.5V

VIH

VDD = 3V to 5.5V

MAXV Threshold

Accuracy

MAXV, MAXIP, MAXIN

Input Bias Current

CTLI Gain Accuracy

CTLI Input Resistance

Error-Amp

Transconductance

IMAXV-BIAS,

IMAXI_-BIAS

ACTLI

RCTLI

gm

VMAXV = VREF x 0.67, VOS1 to VOS2 =

±4V, VDD = 5V

VMAXV = VREF x 0.33, VOS1 to VOS2 =

±2V, VDD = 3V

VMAXV = VMAXI_ = 0.1V or 1.5V

VCTLI = 0.5V to 2.5V (Note 3)

1MΩ terminated at REF

ITEC Accuracy

ITEC Load Regulation

ΔVITEC

VOS1 to VCS = +100mV or -100mV

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

IITEC = ±10µA

2.4

2.25

400

-100

-5

VDD x

0.75

-2

-2

-0.1

9.5

0.5

50

-10

-0.1

32

20

2

+165

2.6

2.5

550

100

30

3

2.8

2.75

650

+100

+5

VDD x

0.25

+2

+2

+0.1

10

10.5

1.0

2.0

100

175

+10

+0.1

mA

mA

°C

V

kHz

µA

µA

V

V

%

%

µA

V/V

MΩ

µA/V

%

%

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