MAX8734AEEI+ Maxim Integrated Products, MAX8734AEEI+ Datasheet - Page 17
![IC PWR SUPPLY CONTROLLER 28QSOP](/photos/6/61/66154/28-qsop_21-0055_sml.jpg)
MAX8734AEEI+
Manufacturer Part Number
MAX8734AEEI+
Description
IC PWR SUPPLY CONTROLLER 28QSOP
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX8734AEEIT.pdf
(33 pages)
Specifications of MAX8734AEEI+
Applications
Power Supply Controller
Voltage - Input
4.5 ~ 24 V
Current - Supply
25µA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-QSOP
Product
Power Monitors
Operating Temperature Range
- 40 C to + 85 C
Mounting Style
SMD/SMT
Accuracy
1.5 %
Supply Current (max)
50 uA
Supply Voltage (max)
4.5 V
Supply Voltage (min)
24 V
Case
SSOP
Dc
06+
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Each PWM controller consists of a Dual-Mode feedback
network and multiplexer, a multi-input PWM comparator,
high-side and low-side gate drivers, and logic. The
MAX8732A/MAX8733A/MAX8734A contain fault-protection
circuits that monitor the main PWM outputs for undervolt-
age and overvoltage conditions. A power-on sequence
Figure 4. PWM Controller (One Side Only)
Supply Controllers for Notebook Computers
High-Efficiency, Quad-Output, Main Power-
______________________________________________________________________________________
OUT
TON (MAX8734A)
ILIM_
FB_
REF
CS_ (MAX8732A/8733A)
LX_ (MAX8734A)
SKIP
OUT_
PRO
0.15V
TRIG
0.7 x V
ONE SHOT
COMPUTE
ON-TIME
REF
t
ON
0.9 x V
1.1 x V
V+
REF
REF
Q
AMPLIFIER
ERROR
CURRENT
LIMIT
Σ
CROSSING
ZERO
block controls the power-up timing of the main PWMs and
monitors the outputs for undervoltage faults. The
MAX8732A/MAX8733A/MAX8734A include 5V and 3.3V
linear regulators. Bias generator blocks include the 5V
(LDO5) linear regulator, 2V precision reference, and auto-
matic bootstrap switchover circuit.
OV_FAULT
UV_FAULT
BLANKING
20ms
Q
R
ONE SHOT
LATCH
S
FAULT
t
R
S
OFF
Q
TRIG
Q
TO DH_ DRIVER
TO DL_ DRIVER
PGOOD
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