TPS92601-Q1_16 Datasheet, PDF (5/47 Pages) Texas Instruments – Single- and Dual-Channel Automotive Headlight LED Driver

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TPS92601-Q1, TPS92602-Q1, TPS92601A-Q1, TPS92602A-Q1
SLUSBP5D – MARCH 2014 – REVISED JANUARY 2015
7.3 Recommended Operating Conditions
over operating free-air temperature (unless otherwise noted)
VIN (first connection to battery, full functionality)
Supply voltage
VIN (battery voltage during cranking profile, full functionality)
Output sense
PWMIN
VIN
VOUTx, ISPx, ISNx⁽¹⁾
PWMINx: enable and disable functionality⁽¹⁾
PWMINx: PWM functionality⁽¹⁾
ISNSx, OVFBx⁽¹⁾
Other pins
VCC
ICTRLx, RT⁽¹⁾
Gate-driver supply current, VCC⁽²⁾
T_A
Ambient temperature range
T_J
Junction temperature range
(1) For the TPS9602-Q1 device, x = 1 or 2. For the TPS9601-Q1 device, x is blank.
(2) Note available current for low-side gate drivers to drive the external BOOST FETs
MIN
MAX UNIT
6
26
V
4
26
V
26
40
V
4
75
V
0
40
V
0
7
V
0
8
V
3
8
V
0
3.3
V
100 mA
–40
125
°C
–40
150
°C
7.4 Thermal Information
THERMAL METRIC⁽¹⁾
TPS92601-Q1
PWP (HTSSOP)
TPS92602-Q1
PWP (HTSSOP)
UNIT
20 PINS
28 PINS
R_θJA
R_θJC(top)
R_θJB
ψ_JT
ψ_JB
R_θJC(bot)
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
37
37.2
23.4
19.3
17.7
16.7
°C/W
0.9
0.8
17.5
16.5
0.9
2.6
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
7.5 Electrical Characteristics
T_J = –40°C to 150°C, V_VDD = 12 VDC, over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
INPUT SUPPLY
V_{(VIN_norm)}
V_{(VIN_crank)}
V_(UVLO)
V_(UVsh)
Input voltage range
Undervoltage lockout
Undervoltage shutdown
Normal mode after initial start-up, VIN rising
Normal mode after initial start-up, VIN falling
PWM1 = PWM2 = High, VIN falling,f_(PMWOx) <
V_(VOUTx) – 2 V
PWM1 = PWM2 = High, VIN falling, quiescent
current < 2 µA
6
4
3.72
2.8
V_(OVSH)
Overvoltage shutdown
SUPPLY CURRENT
PWM1 = PWM2 = High, VIN falling, V_(PMWOx) =
V_(VOUTx), V_(GRDVx) = 0
40 40.7
I_(stby)
t_{(CH_OFF)}
t_{(CH_ON)}
I_nom
Shutdown current
Channel OFF timer
Channel ON timer
Normal-mode current in OVP loop
VIN = 12 V, PWMIN1 and PWMIN2 = low for >
t_{(CH_OFF)},
T_A = 25°C
VIN = 12 V, PWMIN1 and PWMIN2 = low for >
t_{(CH_OFF)},
T_A = 125°C
PWMINx = low
PWMINx = high, V_CC = 5.5 V
VIN = 12 V, PWMINx = high
9.5
14
8
MAX
40
40
4
3.5
2
3
18
1
12
UNIT
V
V
V
V
µA
ms
ms
mA
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