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ZXLD1371QESTTC 데이터시트(PDF) 2 Page - Diodes Incorporated

부품명 ZXLD1371QESTTC
상세설명  AUTOMOTIVE GRADE 60V HIGH ACCURACY BUCK
PDF  42 Pages
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제조업체  DIODES [Diodes Incorporated]
홈페이지  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1371QESTTC 데이터시트(HTML) 2 Page - Diodes Incorporated

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ZXLD1371Q
ZXLD1371Q
Document number: DS37116 Rev. 1 - 2
2 of 42
www.diodes.com
September 2015
© Diodes Incorporated
ZXLD1371Q
Functional Block Diagram
Fast
current
monitor
Accurate
current
monitor
-
Error amp
Demand
current
source
Frequency &
hysteresis
control
Gate
driver
ADJ
COMPIN
RS
VIN
+
-
LOAD
L
GI
D
R2
R1
VIN
ISENSE
VAUX
VAUX
PWM
SGND
PGND
REF
TADJ
Reference
STATUS
FLAG
Error
report
Pin Descriptions
Pin Name
Pin
Type
(Note 5)
Description
ADJ
1
I
Adjust Input (for DC output current control)
Connect to REF to set 100% output current.
Drive with DC voltage (125mV<VADJ< 1.25V) to adjust output current from 10% to 100% of set
value. The ADJ pin has an internal clamp that limits the internal node to less than 3V. This
provides some failsafe should they get overdriven
REF
2
O
Internal 1.25V Reference Voltage Output
TADJ
3
I
Temperature Adjust input for LED thermal current control
Connect thermistor/resistor network to this pin to reduce output current above a preset temperature
threshold. Connect to REF to disable thermal compensation function. (See section on thermal
control.)
SHP
4
I/O
Shaping Capacitor for Feedback Control Loop
Connect 330pF ±20% capacitor from this pin to ground to provide loop compensation
STATUS
5
O
Operation Status Output (analog output)
Pin is at 4.5V (nominal) during normal operation.
Pin switches to a lower voltage to indicate specific operation warnings or fault conditions. (See
section on STATUS output.) Status pin voltage is low during shutdown mode
Note:
5. Type refers to whether or not pin is an Input, Output, Input/Output or power supply pin.



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