TB2912HQ Toshiba, TB2912HQ Datasheet - Page 21

• Manufacturer Part Number: TB2912HQ
• Manufacturer: Toshiba

Specifications of TB2912HQ

• No. Of Channels: 4
• Package: HZIP 25-P-1.00F
• Recommended Vcc (v): 13.2
• Rl=2 Ohm: 70W x 4
• Rl=4 Ohm: 43W x 4
• Rl=8 Ohm: -
• Features/built-in Functions: 4 BTL channels, standby switch, mute, BiCD process, I2C self-diagnosis, tweeter diagnostics, low standby current
• Operating Voltage (v): 9 to 18

Note 13: DBx (D5) is effective only at the time of “Current detection enable”.
Bit
D7
D6
D5
D4
D3
D2
D1
D0
DB4 Diagnostic Byte:
X
X
Channel 4 current detection
Output peak current < 250 mA (IB2 − D7 = 0) − open load (D5 = 1)
Output peak current < 100 mA (IB2 − D7 = 1) − open load (D5 = 1)
Output peak current > 500 mA (IB2 − D7 = 0) − normal load (D5 = 0)
Output peak current > 300 mA (IB2 − D7 = 1) − normal load (D5 = 0)
Channel 4
Turn-on diagnostic (D4 = 0)
Permanent diagnostic (D4 = 1)
Channel 4
Normal load (D3 = 0)
Short load (D3 = 1)
Channel 4
Turn-on diag: No open load (D2 = 0)
Offset diag: No output offset (D2 = 0)
Channel 4
No short to V
Short to V
Channel 4
No short to GND (D0 = 0)
Short to GND (D0 = 1)
CC
CC
(D1 = 1)
(D1 = 0)
21
Open load detected (D2 = 1)
Output offset detected (D2 = 1)
TB2912HQ
2006-04-28