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| 型号： | MAX1545ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/43页 |
| 文件大小： | 0K |
| 描述： | IC QUICK-PWM DUAL-PHASE 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| 应用： | 控制器，Intel Pentium? IV |
| 输入电压： | 2 V ~ 28 V |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 1.85 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
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Dual-Phase, Quick-PWM Controllers for
Programmable CPU Core Power Supplies
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V CC to GND ..............................................................-0.3V to +6V
V DD to PGND............................................................-0.3V to +6V
SKIP , SUS, D0–D4 to GND.......................................-0.3V to +6V
ILIM, FB, OFS, CCV, CCI, REF, OAIN+,
OAIN- to GND.........................................-0.3V to (V CC + 0.3V)
CMP, CSP, CMN, CSN, GNDS to GND ......-0.3V to (V CC + 0.3V)
TON, TIME, VROK, S0–S1, CODE to GND.-0.3V to (V CC + 0.3V)
SHDN to GND (Note 1)...........................................-0.3V to +18V
DLM, DLS to PGND ....................................-0.3V to (V DD + 0.3V)
BSTM, BSTS to GND ..............................................-0.3V to +36V
DHM to LXM ...........................................-0.3V to (V BSTM + 0.3V)
LXM to BSTM............................................................-6V to +0.3V
DHS to LXS..............................................-0.3V to (V BSTS + 0.3V)
LXS to BSTS .............................................................-6V to +0.3V
GND to PGND .......................................................-0.3V to +0.3V
REF Short-Circuit Duration .........................................Continuous
Continuous Power Dissipation (T A = +70°C)
40-Pin 6mm ? 6mm Thin QFN
(derate 23.2mW/°C above +70°C) ...............................1.860W
Operating Temperature Range .........................-40°C to +100°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1: SHDN may be forced to 12V for the purpose of debugging prototype boards using the no-fault test mode, which disables
fault protection and overlapping operation.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, V CC = V DD = V SHDN = V TON = V SKIP = V S0 = V S1 = V CODE = 5V, V FB = V CMP = V CMN = V CSP = V CSN
= 1.3V, OFS = SUS = GNDS = D0–D4 = GND; T A = 0°C to +85°C , unless otherwise specified. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLER
Input Voltage Range
Battery voltage, V+
V CC , V DD
4
4.5
28
5.5
V
DC Output Voltage Accuracy
(Note 2)
V+ = 4.5V to 28V,
includes load
regulation error
DAC codes ≥ 1V
DAC codes from
0.60V to 1V
-10
-15
+10
+15
mV
Line Regulation Error
V CC = 4.5V to 5.5V, V+ = 4.5V to 28V
5
mV
Input Bias Current
OFS Input Range
I FB , I GNDS
I OFS
FB, GNDS
OFS
-2
-0.1
0
+2
+0.1
2
μA
V
OFS Gain
A OFS
Δ V OUT / Δ V OFS;
Δ V OFS = V OFS, V OFS = 0 to 1V
Δ V OUT / Δ V OFS;
Δ V OFS = V OFS - V REF, V OFS = 1V to 2V
-0.129
-0.129
-0.125
-0.125
-0.117
-0.117
V/V
GNDS Input Range
-20
+200
mV
GNDS Gain
A GNDS
Δ V OUT / Δ V GNDS
0.97
0.99
1.01
V/V
1000kHz nominal, R TIME = 15k Ω
900
1000
1100
TIME Frequency Accuracy
f TIME
500kHz nominal, R TIME = 30k Ω
250kHz nominal, R TIME = 60k Ω
460
225
500
250
540
275
kHz
Shutdown, R TIME = 30k Ω
125
2
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