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參數(shù)資料
| 型號： | PCZ34670EG |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | 1.27 PITCH, ROHS COMPLIANT, PLASTIC, MS-013AC, SOIC-20 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 986K |
| 代理商： | PCZ34670EG |
Analog Integrated Circuit Device Data
Freescale Semiconductor
3
34670
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 34670 Pin Connections
Table 1. 34670 Pin Definitions
Pin Number
Pin Name
Formal Name
Definition
1, 2
VPWR
Positive Supply
Voltage Input
This is the most positive power supply input. The load connects between this pin
and the VOUT pin.
3
RCLA
Classification Resistor
Connect a resistor between RCLA and VIN to select the class of the PD.
4
UVLO
Undervoltage Lookout
Used to adjust the undervoltage lookout threshold voltage, connected to VIN to use
the default threshold voltage.
5
TEST1
Test pins
Connect to VIN in application mode.
6
TEST2
7
FREQ
Frequency Adjustment
Adjusts the internal oscillator frequency by connecting a resistor between FREQ
and VIN.
8
ILIM
Inrush Current Limit
Used to adjust the inrush current limit of the isolation switch, add a resistor
between ILIM and VIN.
9
VIN
Negative Supply Voltage
This is the most negative power supply input.
10
VIN
11, 12
VOUT
Output Voltage
This pin is the drain of the internal Power MOSFET (high current path).
13
VOUT
Output Voltage
This pin is the drain of the internal Power MOSFET (low current path).
14
RESET
RESET Output
(active low)
This is an active-low RESET output signal. This pin is referenced to VOUT.
15
SS
Soft Start Input
Connect an external capacitor to SS. The internal current source charges the
capacitor and generates a soft-start ramp.
16
COMP
Compensation Pin
COMP is the output of the error amplifier and is available for feedback
compensation. COMP is pulled-up by an internal 5.0 k
resistor to 5.0 V.
17
FB
Feedback Input
This is the inverting input of the error amplifier. In non-isolated applications it’s
connected to the secondary output through a resistor divider.
18
CS
Current Sense
The current sense pin CS senses a voltage that is proportional to the current
through the sense resistor.
19
GATE
Gate Driver Output
GATE drives the gate of the external power MOSFET. GATE sources and sinks
up to 1.0 A.
20
VDD
VDD Output
VDD mainly supplies the gate of the external power MOSFET. Connect a capacitor
from VDD to VOUT.
1
2
3
5
4
6
7
8
9
10
20
11
12
13
14
15
16
17
18
19
VPWR
RCLA
UVLO
TEST1
TEST2
FREQ
ILIM
VIN
VDD
GATE
CS
FB
COMP
SS
RESET
VOUT
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| PD 1/2-0 | 制造商:TE Connectivity 功能描述:HEATSHRINK END CAP 12.7MM PK100 |
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| PD 1/8-0 | 制造商:TE Connectivity 功能描述:HEATSHRINK END CAP 3.2MM PK100 制造商:TE Connectivity 功能描述:HEATSHRINK, END CAP, 3.2MM, PK100 制造商:TE Connectivity 功能描述:HEATSHRINK, END CAP, 3.2MM, PK100, I.D. Supplied - Metric:3.2mm, I.D. Supplied - 制造商:TE Connectivity 功能描述:HEATSHRINK, END CAP, 3.2MM, PK100, I.D. Supplied - Metric:3.2mm, I.D. Supplied - Imperial:0.125", I.D. Recovered Max - Metric:0.58mm, I.D. Recovered Max - Imperial:0.022", Shrink Ratio:3:1, Shrink Tubing / Boot Material:PO , RoHS Compliant: Yes |
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