MAX17690ATE+ datasheet(8/22 Pages) MAXIM

Part #	MAX17690ATE+

Description	4.5V to 60V Input Voltage Range

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Manufacturer	MAXIM [Maxim Integrated Products]

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MAX17690

60V, No-Opto Isolated Flyback Controller

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Pin Description (continued)

NAME

FUNCTION

6

TC

Output Voltage Temperature Compensation. Connect the resistor RTC from the TC pin to SGND to set the

temperature compensation. Current through TC pin is given by 0.55/RTC.

7

VCM

Common-Mode Voltage Selector for Internal Zero Current Detector Block. Connect a resistor RVCM from

the VCM pin to SGND. See the Selection of RVCM Resistor section for selecting an appropriate RVCM

resistor.

8

RIN

A current proportional to VIN flows through RIN resistor. Connect a resistor RRIN from the RIN pin to

SGND.

9

COMP

Error Amplifier Output. Connect the frequency compensation network between COMP and SGND.

10

SS

Soft-Start. Connect a capacitor CSS from the SS pin to SGND to program the soft-start time interval. Pullup

current at this pin is 5µA.

11

RT

Switching Frequency Programming Resistor. Connect a resistor RRT from RT to SGND to set the PWM

switching frequency. This pin is regulated to 1.215V. See the Switching Frequency section for selecting an

appropriate RRT resistor.

12

SGND

Signal Ground.

13

CS

Current Sense Input. See the Setting Peak Current Limit section for selecting an RCS resistor.

14

PGND

Power Ground.

15

NDRV

Driver Output. Connect this pin to the external MOSFET gate. Switches between INTVCC to PGND.

16

INTVCC

Linear Regulator Output and Driver Input. Connect a minimum of 2.2μF bypass capacitor from INTVCC pin

to PGND as close as possible to the MAX17690 IC. This pin is typically regulated to 7V.

EP

Exposed Pad. Connect this pin to the signal ground plane.

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