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TPS92515HVQDGQRQ1 Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza TPS92515HVQDGQRQ1
Descripción Electrónicos  2-A, Buck LED Driver with Integrated N-channel FET,High-Side Current Sense, and Shunt FET PWM Dimming Capability
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS92515HVQDGQRQ1 Datasheet(HTML) 5 Page - Texas Instruments

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TPS92515, TPS92515-Q1, TPS92515HV, TPS92515HV-Q1
www.ti.com
SLUSBZ6A – APRIL 2016 – REVISED AUGUST 2016
Product Folder Links: TPS92515 TPS92515-Q1 TPS92515HV TPS92515HV-Q1
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Copyright © 2016, Texas Instruments Incorporated
7.5 Electrical Characteristics
VIN = 40 V, –40°C ≤ TJ ≤ 150°C, VBOOT is referenced to SW pin, unless otherwise specified.
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
PEAK CURRENT COMPARATOR
VCST
VIN– VCSN peak current threshold
VIADJ = VCC
224
240
251
mV
VIADJ = 2.2 V
211.5
220
223.5
mV
AADJ
VIADJ to VIN – VCSN threshold gain 0.1 ≤ VIADJ ≤ 2.2 V
0.1
V/V
ICSN
Current sense pin, input bias
current
–5
0
µA
tDEL
CSN pin falling delay
CSN fall to SW fall
75
130
ns
tLEB
Minimum ON-time
Minimum pulse width
75
195
275
ns
SYSTEM CURRENTS
Icq
Operating current
Not switching, VIADJ = VVCC
0.85
1.5
mA
INTEGRATED N-Channel MOSFET AND DRIVER
RDS(on)
FET ON-resistance
IDRN-SW = 200mA, VBOOT = 5 V,
TJ = 25°C
290
500
IDRN-SW = 200mA, VBOOT = 5 V,
TJ = 150°C
290
600
IDRN-SW = 200mA, VBOOT = 3.5 V,
TJ = 25°C
310
500
IDRN-SW = 200mA, VBOOT = 3.5 V,
TJ = 150°C
310
650
IDRN-SW(off)
FET leakage current
VDRN-SW = 6 V, VSW = 0 V
10
µA
VBOOT-UVLO
Voltage where gate drive is
disabled
VBOOT falling
2.0
2.8
3.5
V
VBOOT-UVLO(hys)
BOOT pin UVLO Hysteresis
125
mV
IPD(PWM/UVLO)
Pull down from SW when PWM
low.
PWM low, VBOOT = 5 V , VSW = 8 V
100
130
µA
IPD(BOOT)
Pull down from SW when VBOOT
reaches VBOOT-UVLO
PWM high, VBOOT < BOOT-UVLO, VSW
= 8 V
5
7
mA
IBOOT_Q
BOOT pin quiescent current
VBOOT = 5.5 V, 0 V ≤ VSW ≤ 65 V
60
90
µA
VCC/REFERENCE REGULATOR
VCC
Regulated pin voltage
IVCC(ext) ≤ 500 µA
4.8
5.0
5.2
V
VCCDO
Drop out voltage
IVCC(ext) ≤ 500 µA
0.1
0.2
V
VCCUVLO
VCC undervoltage lockout
Falling threshold, VIN = 10 V
4.0
4.2
4.4
V
VCCUVLO_hys
VCC undervoltage lockout
hysteresis
0.22
V
IVCC(ILIM)
VCC regulator current limit
VCC shorted to GND
14
19
23
mA
VINUVLO
VIN UVLO Falling Threshold
4.65
4.90
5.15
V
VINUVLO_hys
VIN UVLO Hysteresis
150
190
225
mV
OFF-TIMER
VOFT
OFF-time threshold
0.95
1.00
1.05
V
tD(off)
COFF threshold
COFF to SW rising delay
68
120
ns
tOFF(max)
Maximum OFF-time
230
µs
PWM/UVLO (Enable)
IPWM(uvlo)
PWM/UVLO pin current
VPWM(uvlo) = 5.5 V
10
nA
VPWM(uvlo)
PWM/UVLO pin threshold
PWM pin rising
0.95
1.0
1.05
V
VPWM(uvlo-hys)
PWM/UVLO pin hysteresis
Difference between rising and falling
threshold
50
100
150
mV
tPWM(uvlo)
PWM/UVLO pin delay
PWM pin rising to SW pin rising
75
130
ns
PWM pin falling to SW pin falling
100
170
ns
IPWM(uvlo-hys)
PWM/UVLO hysteresis current
VPWM(uvlo) = 2 V
–25
–20
–15
μA


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