MAX17409 데이터 시트보기 (PDF) - Maxim Integrated

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MAX17409

1-Phase Quick-PWM GPU Controller

Maxim Integrated 

1-Phase Quick-PWM GPU Controller

ABSOLUTE MAXIMUM RATINGS

VCC, VDD to GND .....................................................-0.3V to +6V

G0–G5 to GND .........................................................-0.3V to +6V

CSP, CSN to GND ....................................................-0.3V to +6V

ILIM, THRM, VRHOT, PWRGD to GND ....................-0.3V to +6V

SKIP to GND.............................................................-0.3V to +6V

LX to BST...............................................................-6V to +0.3V

BST to VDD ..........................................................-0.3V to +30V

DH to LX .................................................-0.3V to (VBST + 0.3V)

Continuous Power Dissipation (TA = +70°C)

28-Pin 4mm x 4mm TQFN

CCV, FB, IMON, REF to GND .....................-0.3V to (VCC + 0.3V)

SHDN to GND (Note 1)...........................................-0.3V to +30V

(derate 21.3mW/°C above +70°C) ............................1702mW

Operating Temperature Range .........................-40°C to +105°C

TON to GND ...........................................................-0.3V to +30V

Junction Temperature ......................................................+150°C

GNDS/OFSP, PGND to GND (Note 2) ...................-0.3V to +0.3V

Storage Temperature Range .............................-65°C to +165°C

Internal Driver (Note 2)

Lead Temperature (soldering, 10s) .................................+300°C

DL to PGND .............................................-0.3V to (VDD + 0.3V)

BST to GND .........................................................-0.3V to +36V

Note 1: SHDN might be forced to 12V for the purpose of debugging prototype breadboards using the no-fault test mode, which dis-

ables fault protection.

Note 2: Measurements valid using a 20MHz bandwidth limit.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, SHDN = ILIM = VCC, SKIP = GNDS = PGND = GND, VFB = VCSP = VCSN = 1.05V;

G5–G0 set for 1.05V (G0–G5 = 100110); TA = 0°C to +85°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 3)

PARAMETER

PWM CONTROLLER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Input Voltage Range

VCC, VDD

4.5

5.5

V

DC Output-Voltage Accuracy

Line Regulation Error

GNDS Input Range

GNDS/OFSP Gain

GNDS/OFSP Input Bias Current

REF Voltage

Dynamic VID Slew-Rate Accuracy

AGNDS

IGNDS

VREF

Measured at FB with respect to GNDS;

includes load-regulation error (Note 4)

VCC = 4.5V to 5.5V, VIN = 4.5V to 26V

VOUT/
VGNDS, -200mV  VGNDS  +200mV

VCC = 4.5V to 5.5V, IREF = 100µA

IREF = 0 to 1mA

-6

-200

0.97

-2

1.98

1.97

11.0

0.1

1.00

2.000

2.000

12.5

+6

+200

1.03

+2

2.02

2.02

14.0

mV

%

mV

V/V

µA

V

mV/µs

Soft-Start/Soft-Shutdown

Slew-Rate Accuracy

1.248 1.56 1.872 mV/µs

On-Time (Note 5)

Minimum Off-Time

TON Shutdown Input Current

RTON = 96.75k

142 167 192

tON

VIN = 12V, VFB = 1.2V RTON = 200k

300 333 366

ns

RTON = 303.25k 425

500

575

tOFF(MIN) Measured at DH (Note 5)

SHDN = GND, VIN = 26V, VCC = VDD = 0 or 5V

300 375

ns

0.01 0.1

µA

2 _______________________________________________________________________________________

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