AIC1573 查看數據表（PDF） - Analog Intergrations

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AIC1573

5-bit DAC, Synchronous PWM Power Regulator with Simple PWM Power Regulator, LDO And Linear Controller

Analog Intergrations 

AIC1573

n ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER

TEST CONDITIONS

SYMBOL MIN. TYP. MAX. UNIT

SYNCHRONOUS PWM CONTROLLER AMPLIFIER

DC Gain

(G.B.D.)

Gain-Bandwidth Product

(G.B.D.)

Slew Rate

(G.B.D.) note 1.

PWM CONTROLLER GATE DRIVERS

UGATE1,2 Upper Drive Source

UGATE1,2 Upper Drive Sink

Lower Drive Source

VCC=12V, VUGATE = 6V

VUGATE=1V

VCC=12V, VLGATE =1V

Lower Drive Sink

VLGATE=1V

PROTECTION

VSEN1 Over-Voltage

( VSEN1/DACOUT)

FAULT Sourcing Current

VSEN1 Rising

VCC-VFAULT/RT =2.0V

OCSET1,2 Current Source VOCSET=4.5VDC

Soft-Start Current

POWER GOOD

GBWP

SR

IUGH

RUGL

ILGH

RLGL

80

dB

13

MHz

6

V/µs

0.9

A

2.8 3.5 Ω

1

A

2.2 3.0 Ω

OVP

116 120 %

IOVP

20

mA

IOCSET 170 200 230 µA

ISS

25

µA

VSEN1 Upper Threshold

( VSEN1/DACOUT )

VSEN1 Rising

108

111 %

VSEN1 Under-Voltage

( VSEN1/DACOUT )

VSEN1 Falling

92

95

%

VSEN1 Hysteresis

(VSEN1/DACOUT)

Upper and Lower Threshold

2

%

PGOOD Voltage Low

IPGOOD=-4mA

VPGOOD

0.4 0.8

V

Note 1. Without internal compensation network, the gain bandwidth product is 13MHz. Being associated with

internal compensation networks, the Bode Plot is shown in Fig. 3, “Internal Compensation Gain of

PWM Error Amplifier”.

5

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