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TPS92601-Q1 Datasheet(PDF) 7 Page - Texas Instruments

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No. de pieza TPS92601-Q1
Descripción Electrónicos  TPS9260x-Q1 Single- and Dual-Channel Automotive Headlight LED Driver
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS92601-Q1 Datasheet(HTML) 7 Page - Texas Instruments

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TPS92601-Q1, TPS92602-Q1, TPS92601A-Q1, TPS92602A-Q1
www.ti.com
SLUSBP5D – MARCH 2014 – REVISED JANUARY 2015
Electrical Characteristics (continued)
TJ = –40°C to 150°C, VVDD = 12 VDC, over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
HIGH-SIDE CURRENT-SENSE ERROR AMPLIFIER VFBx < 2.1 V
V(SPSN,Com)
Common-mode voltage ISPx, ISNx
4
74
V
4 V < V(SPSN_Com) < 75 V, VFBx < 2.1 V,
150
mV
TPS92601-Q1, TPS92602-Q1
V(SPSN_Diff)
Full-scale sense voltage ISPx – ISNx
4 V < V(SPSN_Com) < 75 V, VFBx < 2.1 V,
300
mV
TPS92601A-Q1, TPS92602A-Q1
V(SPSN_AC)
Sense-voltage accuracy
Common-mode voltage 4 V to 75 V
–6
6
mV
I(BIAS_SPSN)
Input bias current ISPx, ISNx
4 V < V(SPSN_Com) < 75 V, V(SPSN_Diff) = 150 mV
40
µA
TPS92601-1, TPS92602-Q1, 4 V < V(SPSN_Com) <
100
135
µA
75 V, V(SPSN_Diff) = 150 mV
I(offset_SPSN)
Input offset current ISPx, ISNx
TPS92601A-Q1, TPS92602A-Q1, 4 V <
175
200
µA
V(SPSN_Com) < 75 V, V(SPSN_Diff) = 300 mV
gMC
Forward transconductance
1
mS
TPS92601-Q1, TPS92602-Q1
5
V/V
A(HSCS)
HS current-sense gain
TPS92601A-Q1, TPS92602A-Q1
2.5
V/V
CURRENT CONTROL ICTRL – ANALOG DIMMING FOR ALL PARAMETERS: VFBx < 2.1 V
I(DIM_LIN)
Linear analog dimming range
10%
100%
TPS92601-Q1, TPS92602-Q1, TA = 25ºC
(1)
9.7
10
10.3
TPS92601-Q1, TPS92602-Q1, TA = 125ºC
(1)
9.5
10
10.5
K(DIMfactor)
Dimming factor, V(ICTRL) / V(SNSPx)
TPS92601A-Q1, TPS92602A-Q1, TA = 25ºC
(1)
4.85
5
5.15
TPS92601A-Q1, TPS92602A-Q1, TA = 125ºC
(1)
4.75
5
5.25
V(ICTRLx)
Adjustable voltage range
See Figure 12
0
1.5
V
R(ICTRLpd)
Pulldown resistance at ICTRLx pin
0.75
1
1.2
M
Ω
ERROR AMPLIFIER - REFERENCE VOLTAGE
V(VFB)
Voltage feedback
2.2
V
ΔV(VFB)
Voltage FB accuracy
–5%
5%
I(BIAS)
Input bias current
VFB = 2.2 V
500
nA
g(Mv)
Forward transconductance
1
mS
INTERNAL SOFT-START
t(softstart)
Soft-start time, internal soft-start
COMP 0 V to 1.5 V
3.5
ms
DIAGNOSIS – DIAGx PIN
TPS92601-Q1, TPS92602-Q1
10
mV
V(OPLED)
Open LED failure
TPS92601A-Q1, TPS92602A-Q1
20
mV
V(DIAG_OP)
Low-level voltage, DIAGx pin
DIAGx pin pulled low, I(DIAGx) = 100 µA
0.15
V
TPS92601-Q1, TPS92602-Q1
225
mV
V(SHLED)
Shorted LED failure
TPS92601A-Q1, TPS92602A-Q1
450
mV
V(DIAG_SH)
High-level voltage, DIAGx pin
DIAGx pin pulled high, I(DIAGx) = 100 µA
3
3.47
V
V(ILED1)
0.2
2.85
Range for tracking LED current on DIAGx
Voltage range on DIAGx pin (VIN > 6 V)
V
pin
V(ILED2)
0.2
2.85
V(DIAG_AC)
Offset of DIAG output buffer
At input of DIAG buffer
–12
12
mV
Within linear analog dimming range and DIAG
tracking range. Exclusive offset V(DIAG_AC),
12.5
TPS92601-Q1, TPS92602-Q1
K(DIAG_factor)
Factor V(DIAG) / V(SPSN)
Within linear analog dimming range and DIAG
tracking range. Exclusive offset V(DIAG_AC),
6.25
TPS92601A-Q1, TPS92602A-Q1
COMPENSATION NETWORK – COMPx PIN
V(COMPx)
Compensation-network output-pin voltage
0
3.3
V
THERMAL SHUTDOWN
T(SD)
Thermal shutdown
165
°C
T(HYS)
Hysteresis
20
°C
(1)
Within linear analog dimming range (10%–100%). Exclusive offset V(SPSN_AC) = 6 mV
Copyright © 2014–2015, Texas Instruments Incorporated
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Product Folder Links: TPS92601-Q1 TPS92602-Q1 TPS92601A-Q1 TPS92602A-Q1


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