MAX4370 Просмотр технического описания (PDF) - Maxim Integrated

Номер в каталоге

Компоненты Описание

производитель

MAX4370

Current-Regulating Hot-Swap Controller with DualSpeed/BiLevel Fault Protection

Maxim Integrated 

Current-Regulating Hot-Swap Controller with

DualSpeed/BiLevel Fault Protection

Pin Description

PIN NAME

FUNCTION

1

VIN

Supply Voltage Input. Connect to 2.7V to 13.2V.

2

VSEN Current-Sense Resistor Voltage Input. RSENSE is connected from VIN to VSEN.

3

GATE Gate Drive Output. Connect to gate of external N-channel MOSFET.

4

GND Ground

5

CSPD

Slow Comparator Speed Setting. Leave floating or connect the timing capacitor from CSPD to GND. See

Slow Comparator Response Time section.

6

CTIM

Start-Up Timer Setting. Leave floating or connect the timing capacitor from CTIM to GND. See Start-Up

Timing Capacitor section.

7

STAT Status Output—open drain. High indicates start-up completed with no fault. See Table 1.

ON Comparator Input. Connect high for normal operation; connect low to force the MOSFET off. Comparator

8

ON

threshold VTH,ON = 0.6V allows for precise control over shutdown feature. Pulse ON low for at least 20µs,

then high to restart after a fault.

STAT

CTIM

CTIM

CSPD

CSPD

MAX4370

2.45V

SLOW COMPARATOR

INPUT

UVLO

150ms

DELAY

ON

VIN RISING

FAST COMPARATOR

VIN

4µA

LOGIC

CONTROL

6µA

VSC, TH

6µA

50mV

VFC, TH

200mV

DISCHARGE

ENABLE

GATE

DRIVE

CHARGE

PUMP

0.1V

GATE

OVLO

ON COMPARATOR

0.6V

GND

VIN

RSENSE

VSEN

M1

GATE

N

ON

VOUT

Figure 1. Functional Diagram

_______________________________________________________________________________________ 7

Share Link: