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参数资料
| 型号： | TK61220AQ4 |
| 厂商： | TOKO INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, QCC24 |
| 封装： | 4 X 4 MM, HQFN-24 |
| 文件页数： | 4/23页 |
| 文件大小： | 342K |
| 代理商： | TK61220AQ4 |
TK61220AQ4
GC3-N008B
Page 12
10. PIN DESCRIPTION
Pin
No
Pin
Description
Internal Equivalent Circuit
Description
1
PVIN 1
-
This pin is the power supply pin for the ch1 driver.
PVIN1 is not connected with PVIN2 and VDD inside the
IC.
2
SW 1
PVIN1
2
This pin is the driver output pin for the ch1 external
MOSFET gate drive. Pull-down resistor (about 20k
) is
built in.
3
IS 1
3
VREF
0.1V
This pin is the ch1 resistor connection pin for over-current
detection.
4
OVP 1
4
VREF
1.5V
This pin is the ch1 resistor connection pin for over-
voltage detection.
5
FB 1
5
VREF
This pin is the ch1 error amplifier inverting input pin.
This pin outputs the PWM control signal detecting the
output level of the DC-DC converter. The output of the
DIMMING CONTROL part is connected to the non-
inverting input. Because it connects the return resistance
and the capacitance to the EAOUT pin and the FB pin, it
can set the optional loop gain. Stable phase compensation
setting is possible.
6
EAOUT 1
6
VREF
This pin is the ch1 error amplifier output pin.
7
PGOOD 1
7
VREF
This pin is the ch1 protection state output pin.
This pin is an open drain and can sink 1mA. When the
timer latch functions, output of this pin is a "L" level.
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