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MAX1980

Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter

Maxim Integrated 

Quick-PWM Slave Controller with

Driver Disable for Multiphase DC-DC Converter

ABSOLUTE MAXIMUM RATINGS

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

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

PGND to GND.....................................................................±0.3V

TRIG, LIMIT to GND .................................................-0.3V to +6V

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

ILIM, CM+, CM-, CS+, CS-, COMP

to GND....................................................-0.3V to (VCC + 0.3V)

TON, POL to GND ......................................-0.3V to (VCC + 0.3V)

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

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

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

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

Continuous Power Dissipation (TA = +70°C)

20-Pin QFN (derate 20.0mW/°C above +70°C) .............1.60W

Operating Temperature Range .........................-40°C to +100°C

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

Storage Temperature Range .............................-65°C to +150°C

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

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, V+ = 15V, VCC = VDD = 5V, VOUT = VCOMP = 1.2V, VCM+ = VCM- = VCS+ = VCS- = 1.2V, DD = VCC, TA = 0°C to

+85°C, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

PWM CONTROLLER

Input Voltage Range

On-Time (Note 1)

Battery voltage, V+

VCC, VDD

tON

V+ = 12V,

VCOMP = 1.2V

TON = GND

TON = open

TON = VCC

4.0

28

V

4.5

5.5

171

190

209

320

355

390

ns

464

515

566

Trigger Delay (Note 2)

tTRIG

75

ns

SUPPLY CURRENTS

Quiescent Supply Current (V+)

I+

Measured at V+; VILIM > 0.35V

25

40

µA

Quiescent Supply Current (VDD)

IDD

Measured at VDD; VILIM > 0.35V

<1

5

µA

Quiescent Supply Current (VCC)

ICC

Measured at VCC; VILIM > 0.35V

525 800

µA

Standby Supply Current (V+)

Measured at V+; ILIM = GND

<1

5

µA

Standby Supply Current (VDD)

Measured at VDD; ILIM = GND

<1

5

µA

Standby Supply Current (VCC)

Driver-Disable Supply Current (V+)

Measured at VCC; ILIM = GND

Measured at V+; DD = GND, VILIM > 0.35V

20

40

µA

25

40

µA

Driver-Disable Supply Current

(VDD)

Measured at VDD; DD = GND, VILIM > 0.35V

<1

5

µA

Driver-Disable Supply Current

(VCC)

Measured at VCC; DD = GND, VILIM > 0.35V

525 800

µA

2 _______________________________________________________________________________________

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