LTC4210-4IS6#PBF Linear Technology, LTC4210-4IS6#PBF Datasheet - Page 6

• Manufacturer Part Number: LTC4210-4IS6#PBF
• Manufacturer: Linear Technology

Specifications of LTC4210-4IS6#PBF

• Linear Misc Type: Positive Low Voltage
• Package Type: TSOT-23
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 7V
• 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: Compliant

PI FU CTIO S
LTC4210-3/LTC4210-4
TIMER (Pin 1): Timer Input Pin. An external capacitor
C
µF circuit breaker delay. The GATE pin turns off whenever
the TIMER pin is pulled beyond the COMP2 threshold,
such as for overvoltage detection with an external zener.
GND (Pin 2): Ground Pin.
ON (Pin 3): ON Input Pin. The ON pin comparator has a
low-to-high threshold of 1.3V with 80mV hysteresis and a
glitch filter. When the ON pin is low, the LTC4210 is reset.
When the ON pin goes high, the GATE turns on after the
initial timing cycle.
GATE (Pin 4): GATE Output Pin. This pin is the high side
gate drive of an external N-channel MOSFET. An internal
charge pump provides a 10µA pull-up current with Zener
clamps to V
TYPICAL PERFOR A CE CHARACTERISTICS
6
TIMER
U
sets a 272.9ms/µF initial timing delay and a 21.7ms/
U
CC
and ground. In overload, the error amplifier
54
52
48
42
58
56
50
46
44
2.5
V
U
CB
TA = 25°C
3.0
vs Supply Voltage
3.5
W
SUPPLY VOLTAGE (V)
4.0
4.5
U
5.0
5.5
6.0
LTC4210 • G24
6.5
7.0
(EA) controls the external MOSFET to maintain a constant
load current. An external R-C compensation network
should be connected to this pin for current limit loop
stability.
SENSE (Pin 5): Current Limit Sense Input Pin. A sense
resistor between the V
current limit. In overload, the EA controls the external
MOSFET gate to maintain the SENSE pin voltage at 50mV
below V
TIMER circuit breaker mode is activated. The current limit
loop/circuit breaker mode can be disabled by connecting
the SENSE pin to the V
V
supply voltage range is between 2.7V to 7V. An undervolt-
age lockout (UVLO) circuit with a glitch filter resets the
LTC4210 when a low supply voltage is detected.
CC
(Pin 6): Positive Supply Input Pin. The operating
CC
56
54
52
50
48
46
44
42
58
–75
V
. When the EA is maintaining current limit, the
CB
V
–50
CC
vs Temperature
= 5V
–25
TEMPERATURE (°C)
0
CC
CC
25
and SENSE pins sets the analog
pin.
50
75
100
LTC4210 • G25
125
150
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