參數(shù)資料
型號(hào)： TPS53127RGER
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： DUAL SWITCHING CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQCC24
封裝： GREEN, PLASTIC, VQFN-24
文件頁(yè)數(shù)： 24/29頁(yè)
文件大小： 861K
代理商： TPS53127RGER
SLVSA93 – MARCH 2010
www.ti.com
RECOMMENDED OPERATING CONDITIONS (continued)
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
UNIT
DRVH1, DRVH2
–0.1
30
VBST1 - SW1, VBST2 - SW2
–0.1
5.5
VO
Output voltage
V
DRVL1, DRVL2, VREG5, SS1, SS2
–0.1
5.5
PGND1, PGND2
–0.1
0.1
TA
Operating free-air temperature
–40
85
°C
TJ
Operating junction temperature
–40
125
°C
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VIN current, TA = 25°C, VREG5 tied
to V5FILT, EN1 = EN2 = 5 V,
IIN
VIN supply current
450
800
mA
VFB1 = VFB2 = 0.8 V,
SW1 = SW2 = 0.5 V
VIN current, TA = 25°C,
IVINSDN
VIN shutdown current
no load , EN1 = EN2 = 0 V,
30
60
mA
VREG5 = ON
VFB VOLTAGE AND DISCHARGE RESISTANCE
VBG
Bandgap initial regulation accuracy
TA = 25°C
–1
1
%
TA = 25°C, SWinj = OFF
748
758
768
TA = 0°C to 70°C,
746.6
769.4
VVFBTHx
VFBx threshold voltage
SWinj = OFF
(1)
mV
TA = -40°C to 85°C,
745
771
SWinj = OFF
(1)
IVFB
VFB input current
VFBx = 0.8 V, TA = 25°C
–100
–10
100
nA
RDischg
VO discharge resistancee
ENx = 0 V, VOx = 0.5 V, TA = 25°C
40
80
VREG5 OUTPUT
TA = 25°C, 5.5 V < VIN < 24 V,
VVREG5
VREG5 output voltage
4.8
5.0
5.2
V
0 < IVREG5 < 10 mA
VLN5
Line regulation
5.5 V < VIN < 24 V, IVREG5 = 10 mA
20
mV
VLD5
Load regulation
1 mA < IVREG5 < 10 mA
40
mV
VIN = 5.5 V, VREG5 = 4.0 V,
IVREG5
Output current
170
mA
TA = 25°C
OUTPUT: N-CHANNEL MOSFET GATE DRIVERS
Source, IDRVHx = –100 mA
5.5
11
RDRVH
DRVH resistance
Sink, IDRVHx = 100 mA
2.5
5
Source, IDRVLx = –100 mA
4
8
RDRVL
DRVL resistance
Sink, IDRVLx = 100 mA
2
4
DRVHx-low to DRVLx-on
20
50
80
TD
Dead time
ns
DRVLx-low to DRVHx-on
20
40
80
INTERNAL BOOST DIODE
VFBST
Forward voltage
VVREG5-VBSTx, IF = 10 mA, TA = 25°C
0.7
0.8
0.9
V
VBSTx = 29 V, SWx = 24 V,
IVBSTLK
VBST leakage current
0.1
1
mA
TA = 25°C
ON-TIME TIMER CONTROL
TON1L
CH1 on time
SW1 = 12 V, VO1 = 1.8 V
165
ns
TON2L
CH2 on time
SW2 = 12 V, VO2 = 1.8 V
140
ns
(1)
Not production tested - ensured by design.
4
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS53127
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