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UC3524DWTR Datasheet

  • UC3524DWTR

  • Advanced Regulating Pulse Width Modulators

  • 8頁

  • TI

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UC1524
UC2524
UC3524
Advanced Regulating Pulse Width Modulators
FEATURES
鈥?/div>
Complete PWM Power Control
Circuitry
鈥?/div>
Uncommitted Outputs for
Single-ended or Push-pull
Applications
鈥?/div>
Low Standby Current鈥?mA Typical
鈥?/div>
Interchangeable with SG1524,
SG2524 and SG3524, Respectively
DESCRIPTION
The UC1524, UC2524 and UC3524 incorporate on a single monolithic chip
all the functions required for the construction of regulating power supplies, in-
verters or switching regulators. They can also be used as the control element
for high-power-output applications. The UC1524 family was designed for
switching regulators of either polarity, transformer-coupled dc-to-dc convert-
ers, transformerless voltage doublers and polarity converter applications em-
ploying fixed-frequency, pulse-width modulation techniques. The dual
alternating outputs allow either single-ended or push-pull applications. Each
device includes an on-chip reference, error amplifier, programmable oscilla-
tor, pulse-steering flip-flop, two uncommitted output transistors, a high-gain
comparator, and current-limiting and shut-down circuitry. The UC1524 is
characterized for operation over the full military temperature range of -55擄C
to +125擄C. The UC2524 and UC3524 are designed for operation from -25擄C
to +85擄C and 0擄 to +70擄C, respectively.
BLOCK DIAGRAM
V
REF
16
OSC OUT
3
V
IN
15
REFERENCE
REGULATOR
+5V
Q
+5V TO ALL
INTERNAL
CIRCUITRY
12
C
A
R
T
C
T
(RAMP)
6
OSC
7
R
Q
11
13
E
A
C
B
INV INPUT
NI INPUT
GROUND
(SUBSTRATE)
1
2
+5V
EA
+5V
COMPARATOR
14
10k
5
4
10
SHUTDOWN
9
COMPENSATION
E
B
鈥揝ENSE
+SENSE
8
1k
CL
SLUS180D - NOVEMBER 1999 - REVISED AUGUST 2002

UC3524DWTR 產(chǎn)品屬性

  • 2,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電壓模式

  • 2

  • 300kHz

  • 50%

  • 8 V ~ 40 V

  • 無

  • 是

  • 是

  • 無

  • 無

  • 無

  • 無

  • 無

  • 0°C ~ 70°C

  • 16-SOIC（0.295"，7.50mm 寬）

  • 帶卷 (TR)

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