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參數(shù)資料
| 型號(hào)： | TAS5110IDAP |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | TRUE DIGITAL AUDIO AMPLIFIER TAS5110 PWM POWER OUTPUT STAGE |
| 中文描述： | 真正的數(shù)字音頻放大器TAS5110的PWM功率輸出級(jí) |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 264K |
| 代理商： | TAS5110IDAP |
TAS5110
SLES028A
–
MAY 2002
–
REVISED SEPTEMBER 2002
12
www.ti.com
electrical characteristics
supply, T
J
= 25
°
C (F
switching
= 384 kHz, OUTPUTA and OUTPUTB not connected, DVDD = 3.3 V,
PVDDA1 = 25 V, PVDDB1 = 25 V, PVDDA2 = 22 V, PVDDB2 = 22 V, 50% input duty cycle)
PARAMETER
Operating
TYP
MAX
UNIT
mA
μ
A
mA
μ
A
mA
μ
A
DVDD
2
PWDN = 0
Operating
500
Supply current
PVDDA1
PVDDB1
6.3
PWDN = 0
25
PVDDA2
PVDDB2
Operating
PWDN = 0
6.5
250
13-k
resistor from BIAS_A (pin 11) to DVSS and 13-k
resistor from BIAS_B (pin 12) to DVSS.
H-Bridge transistors, PVDDA2 = PVDDB2 = 22 V, DVDD = 3.3 V, T
J
= 25
°
C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Drain-to-source breakdown voltage
ID = 1 mA, PWDN = 0, Hi-Z state
ISINK = 2.5 A,
See Notes 1, 2, and 3,
28
V
Forward on-state resistance, low-side drivers
OUTPUTA and OUTPUTB to PVSS
PWM_AP = PWM_BP = 0,
PWM_AM = PWM_BM = 1
0.2
0.24
Forward on-state resistance, high-side drivers
PVDDA1 to OUTPUTA, PVDDB1 to OUTPUTB
ISOURCE = 2.5 A,
See Notes 1, 2, and 4,
PWM_AP = PWM_BP = 1,
PWM_AM = PWM_BM = 0
0.2
0.24
On-state resistance matching low-side drivers
98%
On-state resistance matching high-side drivers
98%
NOTES:
1. Test time should be < 1 ms to avoid temperature change.
2. These parameters are measured with voltage-sensing contacts separate from the current-carrying contacts.
3. Connect PVDDA2 and PVDDB2 to a 22-V power supply with respect to PVSS. LDROUTA, LDROUTB, BOOTSTRAPA, and
BOOTSTRAPB pins open.
4. Connect PVDDA2 to 22-V power supply with respect to PVSS. LDROUTA, LDROUTB, BOOTSTRAPA, and BOOTSTRAPB
capacitors are connected respectively. Clock PWM inputs to allow bootstrap capacitors to charge. 93
–
99% modulation must be used
on PWM_AP, PWM_AM, PWM_BP, and PWM_BM inputs to prevent the activity detector from shutting down the device during this
measurement. Note that Fswitching = 384 kHz.
electrical characteristics, voltage regulator, T
J
= 25
°
C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output voltage (LDROUTA, LDROUTB)
IO = 5 mA, PVDDA2=PVDDB2 = 18 V to 27 V,
See Note 5, DVDD = 3.3 V
14.5
15.3
16
V
NOTE 5: These voltage regulators are for internal gate drive circuits only and are not to be used under any circumstances to supply current to
external circuity.
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