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参数资料
| 型号： | MAX1545ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/43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
ELECTRICAL CHARACTERISTICS (continued)
(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
D0–D4 Input Current
SYMBOL
D0–D4
CONDITIONS
MIN
-2
TYP
MAX
+2
UNITS
μA
CODE Input High Voltage
CODE Input Low Voltage
2.4
0.8
V
V
CODE Input Current
High
-1
V CC -
0.4
+1
μA
Four-Level Input Logic Levels
TON, S0–S1
Open
3.15
3.85
V
REF
Low
1.65
2.35
0.4
Four-Level Input Current
TON, S0–S1 forced to GND or V CC
-3
+3
μA
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 = -40°C to +100°C , unless otherwise specified.) (Note 5)
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)
OFS Input Range
V+ = 4.5V to 28V,
includes load
regulation error
DAC codes ≥ 1V
DAC codes from
0.60V to 1V
-13
-20
0
+13
+20
2
mV
V
OFS Gain
GNDS Gain
A OFS
A GNDS
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
Δ V OUT / Δ V GNDS
-0.131
-0.131
0.94
-0.115
-0.115
1.01
V/V
V/V
1000kHz nominal, R TIME = 15k Ω
880
1120
TIME Frequency Accuracy
f TIME
500kHz nominal, R TIME = 30k Ω
450
550
kHz
250kHz nominal, R TIME = 60k Ω
TON = GND
(550kHz)
220
150
280
210
On-Time (Note 3)
t ON
V+ = 12V,
V FB = V CCI = 1.2V
TON = REF
(300kHz)
TON = open
(200kHz)
315
470
395
580
ns
TON = V CC
(100kHz)
910
1150
Minimum Off-Time (Note 3)
t OFF(MIN)
TON = GND
TON = V CC , open, or REF
380
490
ns
6
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