MAX4370ESA+ Maxim Integrated Products, MAX4370ESA+ Datasheet - Page 7

• Manufacturer Part Number: MAX4370ESA+
• Description: IC CNTRLR HOT-SWAP 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Hot-Swap Controllerr

Specifications of MAX4370ESA+

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 2.7 V ~ 13.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 1. Functional Diagram
PIN
1
2
3
4
5
6
7
8
C
Current-Regulating Hot-Swap Controller with
TIM
CTIM
STAT
NAME
GATE
CSPD
VSEN
CTIM
STAT
GND
ON
V
IN
_______________________________________________________________________________________
Supply Voltage Input. Connect to 2.7V to 13.2V.
Current-Sense Resistor Voltage Input. R
Gate Drive Output. Connect to gate of external N-channel MOSFET.
Ground
Slow Comparator Speed Setting. Leave floating or connect the timing capacitor from CSPD to GND. See
Slow Comparator Response Time section.
Start-Up Timer Setting. Leave floating or connect the timing capacitor from CTIM to GND. See Start-Up
Timing Capacitor section.
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
threshold V
then high to restart after a fault.
2.45V
VIN RISING
DELAY
150ms
ON
V
IN
INPUT
UVLO
4 A
DualSpeed/BiLevel Fault Protection
TH,ON
GND
MAX4370
= 0.6V allows for precise control over shutdown feature. Pulse ON low for at least 20µs,
SLOW COMPARATOR
FAST COMPARATOR
CONTROL
LOGIC
C
SPD
CSPD
SENSE
DISCHARGE
ENABLE
6 A
6 A
is connected from V
FUNCTION
0.1V
0.6V
V
V
200mV
50mV
SC, TH
FC, TH
ON COMPARATOR
CHARGE
DRIVE
PUMP
GATE
GATE
OVLO
IN
to VSEN.
Pin Description
VSEN
GATE
ON
V
IN
M1
N
R
SENSE
V
OUT
7