MAX5923EUP+ Maxim Integrated Products, MAX5923EUP+ Datasheet - Page 7

• Manufacturer Part Number: MAX5923EUP+
• Description: IC HOT-SWAP SWITCH +60V 20-TSSOP
• Manufacturer: Maxim Integrated Products
• Series: Simple Swapper™r
• Type: Hot-Swap Switchr

Specifications of MAX5923EUP+

• Applications: General Purpose
• Internal Switch(s): Yes
• Current Limit: 800mA
• Voltage - Supply: 16 V ~ 60 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Product: Controllers & Switches
• Supply Voltage (max): 60 V
• Supply Voltage (min): 16 V
• Power Dissipation: 879 mW
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Supply Current: 1 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
T
A
4, 12, 18, 19
IN
= +25°C, unless otherwise noted.)
= 48V, VDIG, EN, LATCH, CLASS, ZC_EN = 3.3V, DCA, AGND_S = AGND = DGND = 0V, R
PIN
1, 2
10
11
—
3
5
6
7
8
9
10A/div
20V/div
AGND_S
DRAIN
FAULT
NAME
AGND
UVLO
N.C.
POK
TP1
TP3
_______________________________________________________________________________________
ZC
IN
+60V Simple Swapper Hot-Swap Switch
OUTPUT SHORT-CIRCUIT RESPONSE
Analog Ground. This is the return of analog power input. AGND can vary ±4V from DGND. AGND and
DGND must be connected together at a single point in the system.
Drain connection for the integrated MOSFET. Connect a sense resistor, R
These pins are also the current-sense resistor negative terminal. R
and open-circuit detection threshold. These two pins must be connected together.
Input Voltage. Connect to a positive voltage source between 16V to 60V from IN to AGND. This is the
current-sense resistor positive terminal. Bypass to AGND with a 100µF, 100V electrolytic capacitor
and 0.1µF, 100V ceramic capacitor. Place the ceramic capacitor close to this pin.
No Connection. Not internally connected. Leave pins open. Pins are left unconnected to provide
additional spacing between the high-voltage pins and other pins.
Analog Ground Sense. Connect a 1Ω resistor from AGND_S to AGND. This resistor protects the IC
during an output short-circuit condition.
Undervoltage Lockout Adjustment Input. Referenced to AGND. Connect to the center point of a
resistive divider from IN to AGND to adjust the UVLO threshold. Leave open for default value.
Fault Signal Open-Drain Logic Output. Reference to DGND. FAULT is latched low when:
• An overtemperature condition occurs and/or,
• An overcurrent condition that has lasted for more than t
Power-OK Open-Drain Logic Output. Reference to DGND. POK goes open drain a time t
after V
V
Zero-Current Fault Signal. Open-drain logic output. Reference to DGND. ZC is latched low when there
is a zero-current condition lasting longer than t
detection circuit is enabled immediately after the POK signal goes high.
Must be left open or connected to AGND
Must be left open or connected to AGND
THPOK
OUT
4µs/div
from V
raises to within V
IN
.
Typical Operating Characteristics (continued)
MAX5923 toc22
I
V
OUT
THPOK
OUT
from V
IN
200mA/div
. POK goes low a time t
20V/div
FUNCTION
ZCDEL
. ZC is open drain otherwise. The zero-current
OUTPUT SHORT-CIRCUIT RESPONSE
OC
.
200µs/div
SENSE
POK_LOW
SENSE
sets the overcurrent-limit
SENSE
Pin Description
after V
MAX5923 toc23
= 0.5Ω, UVLO floating,
, from DRAIN to IN.
OUT
I
V
OUT
OUT
falls out of the
POK_HIGH
7