TDA8939TH Datasheet, PDF (3/21 Pages) NXP Semiconductors – Zero dead time Class-D 7.5 A power comparator

Philips Semiconductors
6. Block diagram
TDA8939
Zero dead time Class-D 7.5 A power comparator
3
V_DDA1
4
IN1P
2
IN1N
1
V_SSA1
5
POWERUP
TDA8939TH
7
DIAGN
Q ^{PROTECTION S}
LATCH
R
6
ENABLE
CGND ⁸
10
V_DDA2
9
IN2P
11
IN2N
12
V_SSA2
24
sub
V_SSD
heatsink
Fig 1. Block diagram.
ZERO
DEAD TIME
CONTROL
DRIVER
HIGH
DRIVER
LOW
22
BOOT1
23
V_DDP1
21
OUT1
STAB
19
12 V
20
OTP temperature sensor
≥
OCP current protection
OVP overvoltage protection
UVP undervoltage protection
15
14
DRIVER
HIGH
ZERO
16
DEAD TIME
CONTROL
DRIVER
LOW
STAB1
V_SSP1
BOOT2
V_DDP2
OUT2
STAB
12 V
13
n.c.
18
STAB2
17
V_SSP2
001aaa624
9397 750 13023
Objective data sheet
Rev. 01 — 22 April 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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