參數(shù)資料
型號： TPS40180RGER
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 0.05 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC24
封裝： GREEN, PLASTIC, VQFN-24
文件頁數(shù)： 34/52頁
文件大?。?/td> 1291K
代理商： TPS40180RGER
www.ti.com
ELECTRICAL CHARACTERISTICS
SLVS753B – FEBRUARY 2007 – REVISED NOVEMBER 2007
VVDD = 12V, VBP5 = 5V, VPVCC = 5V, –40°C < TJ < 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD INPUT SUPPLY
VVDD
Operating voltage range
4.5
12
15
V
IVDDSD
Shutdown current
VUVLO < 0.5 V
50
A
BP5 INPUT SUPPLY
VBP5
Operating voltage range
4.3
5.0
5.5
V
IBP5
Operating current
2
3
5
mA
VBP5UV
Rising undervoltage turn on threshold
4.0
4.25
4.5
V
VBP5UVH
BP5 UVLO hysteresis
225
mV
PVCC REGULATOR
VPVCC
Output voltage
4.5 V < VVDD < 15 V
4.3
5.0
5.5
V
IPVCC
Output current
0
50
mA
OSCILLATOR
FOSC
Oscillator frequency
RRT= 64.9 k
360
415
454
kHz
Oscillator frequency range
150
1000
VRMP
Ramp voltage(1)
420
500
525
mV
VRTCKLSLV
RT pin clock slave voltage threshold
2
V
DIGITAL CLOCK SIGNAL (CLKIO)
RCLKH
Pull Up Resistance(1)
27
RCLKL
Pull Down Resistance(1)
27
ICLKIOLK
Leakage current in high impedance
VRT < 2 V, VPSEL = 5 V
1
A
state(1)
UVLO PIN
PVCC regulator enabled
0.8
0.9
1.5
VUVLO(on)
V
PWM switching enabled
1.9
2.0
2.1
IUVLO
Hysteresis bias current
9
12
15
A
PULSE WIDTH MODULATOR
DMAX
8 phase CLK scheme
87.5%
Maximum duty cycle
6 phase CLK scheme
83%
tON(min)
Minimum pulse width(1)
75
ns
VSHARE
VVSH
Current share reference; Ramp valley
RLOAD = 20 k
1.7
1.8
1.9
V
voltage
ERROR AMPLIFIER
IIB
Input bias current at FB pin
VFB = 0.7 V
–200
0
200
nA
VREF
Trimmed FB control voltage (includes
695
700
705
mV
differential sense amp offset
IOH
COMP source current
VCOMP = 1.1V, VFB = 0.6 V
1
2
mA
IOL
COMP sink current
VCOMP = 1.1V, VFB = 0.8 V
1
2
EAGBWP
Gain bandwidth product (1)
8
12
MHz
AOL
Open loop gain (1)
60
90
dB
SOFTSTART
Charging Current: device Enabled,
ISS1
Before First PWM Pulse and During
6.5
7.5
8.2
Hiccup Fault Recovery
A
Charging Current After First PWM
ISS2
12
15
17
Pulse
VSS_FE
Fault Enable Threshold
0.8
V
Voltage loop slave mode threshold
VBP5 -
VSSSLV
VBP5 = 5V
voltage
0.75
CURRENT LIMIT
IILIM
Threshold setting current
21.5
23.5
25.5
A
(1)
Specified by design. Not production tested .
4
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TPS40180
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