LTC4210-1IS6#TRPBF Linear Technology, LTC4210-1IS6#TRPBF Datasheet - Page 14

• Manufacturer Part Number: LTC4210-1IS6#TRPBF
• Description: IC CONTROLLER HOT SWAP TSOT23-6
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC4210-1IS6#TRPBF

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 2.7 V ~ 16.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6 Thin, TSOT-23-6
• Linear Misc Type: Positive Low Voltage
• Family Name: LTC4210-1
• Package Type: TSOT-23
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 16.5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Height (mm): 0.9mm
• Product Length (mm): 2.9mm
• Mounting: Surface Mount
• Pin Count: 6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIO S I FOR ATIO
LTC4210-1/LTC4210-2
Autoretry After Current Fault (LTC4210-1)
Figure 8 shows the waveforms of the LTC4210-1 (autoretry
version) during a circuit breaker fault. At time point B1, the
TIMER trips the COMP2 threshold of 1.3V. The GATE pin
pulls to ground while TIMER begins a “cool-off” cycle with
a 2 A pull-down to the COMP1 threshold of 0.2V. At time
point C1, the TIMER pin pulls down with approximately a
7k resistor to ground and a GATE start-up cycle is initiated.
If the fault persists, the fault autoretry duty cycle is
approximately 3.8%. Pulling the ON pin low for more than
30 s will stop the autoretry function and put the LTC4210
in reset mode.
14
V
V
TIMER
I
V
LOAD
GATE
OUT
Figure 8. Automatic Retry After Overcurrent Fault
REGULATING AT 50mV/R
NORMAL
MODE
60 A
A1
FAULT
CB
B1
U
COOL OFF
CYCLE
100 A
SENSE
2 A
U
C1
60 A
A2 B2
FAULT
CB
W
COOL OFF
CYCLE
2 A
4210 F08
U
COMP2
COMP1
Latch-Off After Current Fault (LTC4210-2)
Figure 9 shows the waveforms of the LTC4210-2 (latch-off
version) during a circuit breaker fault. At time point B, the
TIMER trips the COMP2 threshold. The GATE pin pulls to
ground while the TIMER pin is latched high by a 5 A pull-
up. The TIMER pin eventually reaches the soft-clamped
voltage (V
user can either pull the TIMER pin to below 0.2V externally
or cycle the ON pin low for more than 30 s.
V
V
TIMER
I
V
LOAD
CLAMP
GATE
Figure 9. Latchoff After Overcurrent Fault
OUT
REGULATING AT 50mV/R
NORMAL
MODE
) of 2.3V. To clear the latchoff mode, the
60 A
FAULT
A
CB
B
LATCHED OFF CYCLE
C
SENSE
2410 F09
V
COMP2
COMP1
0V
0V
CLAMP
421012f