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AP3591 Arkusz danych(PDF) 6 Page - Diodes Incorporated

Numer części AP3591
Szczegółowy opis  SINGLE PHASE SYNCHRONOUS BUCK CONTROLLER
PDF  18 Pages
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Producent  DIODES [Diodes Incorporated]
Strona internetowa  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP3591 Arkusz danych(HTML) 6 Page - Diodes Incorporated

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AP3591
Document number: DS36906 Rev. 1 - 2
6 of 18
www.diodes.com
March 2014
© Diodes Incorporated
AP3591
A Product Line of
Diodes Incorporated
Electrical Characteristics (VIN = 12V, VDD = VDDP = 5V, VOUT = 1.05V, TA = +25oC, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
SUPPLY INPUT
VIN
Input Voltage
–
4.5
–
26
V
IQ-CCM
Quiescent Current
VDD+VDDP current,
CCM, EN floating, VFB =
0.8V
–
500
800
µA
IQ-DEM
VDD+VDDP current, DEM,
VEN = 5V, VFB = 0.8V
–
500
800
µA
ISHDN
Shutdown Current
VDD+VDDP current, DEM,
VEN = 0V
–
1
10
µA
ON-TIME TIMER, OSCILLATOR FREQUENCY AND SOFT START
tON
On Time
VPHASE = 12V, VOUT =
2.5V, RON = 200kΩ
510
630
750
ns
VPHASE = 12V, VOUT =
1.05V, RON = 200kΩ
190
260
330
tOFF-MIN
Min Off Time
–
250
400
580
ns
tSS
Internal Soft Start Time
–
0.82
1.2
1.5
ms
PWM CONTROLLER GATE DRIVERS
RU_PH
Upper Gate Pull-up Resistance
VBOOT-VPHASE = 5V,
50mA source current
–
3.3
7
Ω
RU_GATE
Upper Gate Sink Resistance
VBOOT-VPHASE = 5V,
50mA sink current
–
1
3
Ω
RL_PH
Lower Gate Pull-up Resistance
–
–
1.8
4
Ω
RL_GATE
Lower Gate Sink Resistance
VBOOT-VPHASE = 5V,
50mA source current
–
0.5
2
Ω
–
PHASE Falling to LGATE
Rising Delay
VPHASE < 1.2V to
VLGATE > 1.2V
–
30
–
ns
–
LGATE Falling to UGATE
Rising Delay
VLGATE < 1.2V to
(VUGATE-VPHASE) > 1.2V
–
30
–
ns
VBOOT
Boot Diode Forward Voltage
VDDP-VBOOT, IBOOT =
10mA
0.5
0.83
1
V
IBSLK
VBS Leakage Current
VBOOT = 34V, VPHASE =
28V
–
0.1
1
µA
POWER GOOD
–
PGOOD Threshold
PGOOD from low to high
92.5
95
97.5
%
–
PGOOD from high to low
102
105
107
%
–
PGOOD Lower Threshold
Hysteresis
–
–
±5
–
%
VPG_L
PGOOD Low Voltage
–
–
–
0.4
V
IPG_LEAK
PGOOD Output Leakage
Current
VPGOOD = 5V
–
–
1
µA
tDELAY
PGOOD Delay Time
Delay for PGOOD pin
16
22
36
µs



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